Invasive species

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North American beaver dam in Tierra del Fuego
Kudzu, Atlanta
Canada goldenrod as a roadside weed in Poland
Vinca in a garden[1]

An invasive species is an introduced species that harms its new environment.[2] Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food web. Since the 20th century, invasive species have become serious economic, social, and environmental threats worldwide.

Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of invasion. For millennia, humans have served as both accidental and deliberate dispersal agents, beginning with their

domestic cats, and carp
.

Terminology

See also: Glossary of invasion biology terms

Invasive species are the subset of established non-native alien or naturalized species that are a threat to native species and biodiversity.

Homo sapiens as an invasive species,[6][7] but broad appreciation of human learning capacity and their behavioral potential and plasticity may argue against any such fixed categorization.[8] The definition of "native" can be controversial. For example, the ancestors of Equus ferus (modern horses) evolved in North America and radiated to Eurasia before becoming extinct in North America. Upon being introduced to North America in 1493 by Spanish conquistadors, it is debatable whether the feral horses were native or exotic to the continent of their evolutionary ancestors.[9]

While invasive species can be studied within many subfields of biology, most research on invasive organisms has been in ecology and biogeography. Much of the work has been influenced by Charles Elton's 1958 book The Ecology of Invasion by Animals and Plants which creates a generalized picture of biological invasions.[10][11] Studies remained sparse until the 1990s.[11] This research, largely field observational studies, has disproportionately been concerned with terrestrial plants.[11] The rapid growth of the field has driven a need to standardize the language used to describe invasive species and events. Despite this, little standard terminology exists; the field lacks any official designation but is commonly referred to as "invasion ecology" or more generally "invasion biology".[10][11] This lack of standard terminology has arisen due to the interdisciplinary nature of the field which borrows terms from disciplines such as agriculture, zoology, and pathology, as well as due to studies being performed in isolation.[12][10]

Colautti and MacIsaac nomenclature[4]
Stage Characteristic
0 Propagules residing in a donor region
I Traveling
II Introduced
III Localized and numerically rare
IVa Widespread but rare
IVb Localized but dominant
V Widespread and dominant

In an attempt to avoid the ambiguous, subjective, and pejorative vocabulary that so often accompanies discussion of invasive species even in scientific papers, Colautti and MacIsaac proposed a new nomenclature system based on

human health, and economic factors, this model focused only on ecological factors. The model evaluated individual populations rather than entire species. It classified each population based on its success in that environment. This model applied equally to indigenous and to introduced species, and did not automatically categorize successful introductions as harmful.[4]

The USDA's National Invasive Species Information Center defines invasive species very narrowly. According to Executive Order 13112, "'Invasive species' means an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health."[13]

Causes

Typically, an introduced species must survive at low population densities before it becomes invasive in a new location.[14] At low population densities, it can be difficult for the introduced species to reproduce and maintain itself in a new location, so a species might reach a location multiple times before it becomes established. Repeated patterns of human movement, such as ships sailing to and from ports or cars driving up and down highways, offer repeated opportunities for establishment (a high propagule pressure).[15]

Ecosystem-based mechanisms

In

edge effects describe what happens when part of an ecosystem is disturbed, as when land is cleared for agriculture. The boundary between remaining undisturbed habitat and the newly cleared land itself forms a distinct habitat, creating new winners and losers and possibly hosting species that would not thrive outside the boundary habitat.[19]

In 1958,

spatial scale of invasion studies. Small-scale studies tended to show a negative relationship between diversity and invasion, while large-scale studies tended to show the reverse, perhaps a side-effect of invasives' ability to capitalize on increased resource availability and weaker species interactions that are more common when larger samples are considered.[22][23] However, this pattern does not seem to hold true for invasive vertebrates.[24]

The brown tree snake has had an impact on the native bird population of the island ecosystem of Guam.

Island ecosystems may be more prone to invasion because their species face few strong competitors and predators, and because their distance from colonizing species populations makes them more likely to have "open" niches.[25] For example, native bird populations on Guam have been decimated by the invasive brown tree snake.[26]

In

water hyacinth forms dense mats on water surfaces, limiting light penetration and hence harming aquatic organisms, and causing substantial management costs.[32][33] The shrub lantana (Lantana camara) is now considered invasive in over 60 countries, and has invaded large geographies in several countries prompting aggressive federal efforts at attempting to control it.[34][35]

Primary geomorphological effects of invasive plants are bioconstruction and bioprotection. For example, kudzu (

Eriocheir sinensis) have resulted in higher bioturbation and bioerosion rates.[36]

A native species can become harmful and effectively invasive to its native environment after human alterations to its food web. This has been the case with the purple sea urchin (Strongylocentrotus purpuratus), which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (Enhydra lutris).[37]

Species-based mechanisms

Japanese knotweed (Reynoutria japonica) is considered one of the world's worst invasive species.
Cats (here, killing a woodpecker) are considered invasive species in Australia and negatively impact wildlife worldwide.

Invasive species appear to have specific traits or specific combinations of traits that allow them to outcompete

Domestic cats are effective predators; they have become feral and invasive in places such as the Florida Keys.[43]

An introduced species might become invasive if it can outcompete native species for resources. If these species evolved under great

unilateral competitive superiority (and extinction of native species with increased populations of the invader) is not the rule.[21][44]

citrus, Sdei Hemed

An invasive species might be able to use resources previously unavailable to native species, such as deep water accessed by a long

heavy metal toxicity. Plant populations on these soils tend to show low density, but goatgrass can form dense stands on these soils and crowd out native species.[45]

Invasive species might alter their environment by releasing chemical compounds, modifying

Kalanchoe daigremontana, produce allelopathic compounds that inhibit competitors.[46] Others like Stapelia gigantea facilitate the growth of seedlings of other species in arid environments by providing appropriate microclimates and preventing herbivores from eating seedlings.[47]

Changes in fire regimens are another form of facilitation. Bromus tectorum, originally from Eurasia, is highly fire-adapted. It spreads rapidly after burning, and increases the frequency and intensity of fires by providing large amounts of dry detritus during the fire season in western North America. Where it is widespread, it has altered the local fire regimen so much that native plants cannot survive the frequent fires, allowing it to become dominant in its introduced range.[48]

Ecological facilitation occurs where one species physically modifies a habitat in ways advantageous to other species. For example, zebra mussels increase habitat complexity on lake floors, providing crevices in which invertebrates live. This increase in complexity, together with the nutrition provided by the waste products of mussel filter-feeding, increases the density and diversity of benthic invertebrate communities.[49]

Introduced species may spread rapidly and unpredictably.

rapid evolution.[52] Selection may then act on the capacity to disperse as well as on physiological tolerance to new stressors in the environment, such as changed temperature and different predators and prey.[53]

Rapid adaptive evolution through intraspecific phenotypic plasticity, pre-adaptation and post-introduction evolution lead to offspring that have higher fitness. Critically, plasticity permits changes to better suit the individual to its environment. Pre-adaptations and evolution after the introduction reinforce the success of the introduced species.[54]

The enemy release hypothesis states that evolution leads to ecological balance in every ecosystem. No single species can occupy a majority of an ecosystem due to the presences of competitors, predators, and diseases. Introduced species moved to a novel habitat can become invasive, with rapid population growth, when these controls do not exist in the new ecosystem.[55]

Vectors

Non-native species have many

range extensions are common, but humans often carry specimens faster and over greater distances than natural forces.[56] An early human vector occurred when prehistoric humans introduced the Pacific rat (Rattus exulans) to Polynesia.[57]

Chinese mitten crab

Vectors include plants or seeds imported for

pet trade moves animals across borders, where they can escape and become invasive. Organisms stow away on transport vehicles. Incidental human assisted transfer is the main cause of introductions – other than for polar regions.[58] Diseases may be vectored by invasive insects: the Asian citrus psyllid carries the bacterial disease citrus greening.[59] The arrival of invasive propagules to a new site is a function of the site's invasibility.[60]

Many invasive species, once they are dominant in the area, become essential to the ecosystem of that area, and their removal could be harmful.[61] Economics plays a major role in exotic species introduction. High demand for the valuable Chinese mitten crab is one explanation for the possible intentional release of the species in foreign waters.[62]

Within the aquatic environment

Maritime trade has rapidly affected the way marine organisms are transported within the ocean; new means of species transport include hull fouling and ballast water transport. In fact, Molnar et al. 2008 documented the pathways of hundreds of marine invasive species and found that shipping was the dominant mechanism for the transfer of invasive species.[63]

de-ballasting

Many marine organisms can attach themselves to vessel hulls. Such organisms are easily transported from one body of water to another, and are a significant risk factor for a biological invasion event.[64] Controlling for vessel hull fouling is voluntary and there are no regulations currently in place to manage hull fouling. However, the governments of California and New Zealand have announced more stringent control for vessel hull fouling within their respective jurisdictions.[65]

Another vector of non-native aquatic species is ballast water taken up at sea and released in port by transoceanic vessels.[66][67] Some 10,000 species are transported via ballast water each day.[68] Many of these are harmful. For example, freshwater zebra mussels from Eurasia most likely reached the Great Lakes via ballast water.[69] These outcompete native organisms for oxygen and food, and can be transported in the small puddle left in a supposedly empty ballast tank.[66] Regulations attempt to mitigate such risks,[70][71] not always successfully.[72]

Climate change is causing an increase in ocean temperature. This in turn will cause range shifts in organisms,[73][74] which could harm the environment as new species interactions occur. For example, organisms in a ballast tank of a ship traveling from the temperate zone through tropical waters may experience temperature fluctuations as much as 20 °C.[75] Heat challenges during transport may enhance the stress tolerance of species in their non-native range, by selecting for genotypes that will survive a second applied heat stress, such as increased ocean temperature in the founder population.[76]

Effects of wildfire and firefighting

Invasive species often exploit disturbances to an ecosystem (

foot trails) to colonize an area. Large wildfires can sterilize soils, while adding nutrients.[17]
Invasive plants that can regenerate from their roots then have an advantage over natives that rely on seeds for propagation.[48]

Adverse effects

Invasive species can affect the invaded habitats and bioregions adversely, causing ecological, environmental, or economic damage.[77]

Ecological

The European Union defines "Invasive Alien Species" as those that are outside their natural distribution area, and that threaten

ballast water rules have improved the situation.[82]

Burmese python
in Florida

Invasive species may drive local native species to extinction via

loss of biodiversity.[83][84] It is difficult to unequivocally attribute extinctions to a species invasion, though there is for example strong evidence that the extinction of about 90 amphibian species was caused by the chytrid fungus spread by international trade.[85]

Multiple successive introductions of different non-native species can worsen the total effect, as with the introductions of the amethyst gem clam and the European green crab. The gem clam was introduced into California's Bodega Harbor from the US East Coast a century ago. On its own, it never displaced native clams (Nutricola spp.). In the mid-1990s, the introduction of the European green crab resulted in an increase of the amethyst gem at the expense of the native clams.[86] In India, multiple invasive plants have invaded 66% of natural areas, reducing the densities of native forage plants, declining the habitat-use by wild herbivores and threatening the long-term sustenance of dependent carnivores, including the tiger.[87][88]

Invasive species can change the functions of ecosystems. For example, invasive plants can alter the

Spartina foliosa) in San Francisco Bay.[92] Invasive species cause competition for native species and because of this 400 of the 958 endangered species under the Endangered Species Act are at risk.[93]

Poster from the State of California asking campers to not move firewood around, avoiding the spread of invasive species

The unintentional introduction of forest pest species and plant pathogens can change

forest ecosystems in the U.S. are widely invaded by exotic pests, plants, and pathogens.[94][95]

The Asian long-horned beetle (

woolly adelgid has inflicted damage on old-growth spruce, fir and hemlock forests and damages the Christmas tree industry.[97] Chestnut blight and Dutch elm disease are plant pathogens with serious impacts.[98][99] Garlic mustard, Alliaria petiolata, is one of the most problematic invasive plant species in eastern North American forests, where it is highly invasive of the understory, reducing the growth rate of tree seedlings and threatening to modify the forest's tree composition.[100]

Native

genotypes as a result of either a numerical or fitness advantage of the introduced species.[102] Genetic pollution occurs either through introduction or through habitat modification, where previously isolated species are brought into contact with the new genotypes. Invading species have been shown to adapt to their new environments in a remarkably short amount of time.[101] The population size of invading species may remain small for a number of years and then experience an explosion in population, a phenomenon known as "the lag effect".[89]

Hybrids resulting from invasive species interbreeding with native species can incorporate their genotypes into the gene pool over time through

Spartina foliosa. The higher pollen count and male fitness of the invading species resulted in introgression that threatened the native populations due to lower pollen counts and lower viability of the native species.[103] Reduction in fitness is not always apparent from morphological observations alone. Some degree of gene flow is normal, and preserves constellations of genes and genotypes.[91][104] An example of this is the interbreeding of migrating coyotes with the red wolf, in areas of eastern North Carolina where the red wolf was reintroduced, reducing red wolf numbers.[105]

Environmental

In South Africa's Cape Town region, analysis demonstrated that the restoration of priority source water sub-catchments through the removal of thirsty alien plant invasions (such as Australian acacias, pines and eucalyptus, and Australian black wattle) would generate expected annual water gains of 50 billion liters within 5 years compared to the business-as-usual scenario (which is important as Cape Town experiences significant water scarcity). This is the equivalent to one-sixth of the city's current supply needs. These annual gains will double within 30 years. The catchment restoration is significantly more cost-effective then other water augmentation solutions (1/10 the unit cost of alternative options).[106] A water fund has been established, and these exotic species are being eradicated.[107]

Human health

Invasive species can affect human health. With the alteration in ecosystem functionality (due to homogenization of biota communities), invasive species have resulted in negative effects on human well-being, which includes reduced resource availability, unrestrained spread of human diseases, recreational and educational activities, and tourism.

severe acute respiratory syndrome (SARS).[109]

Invasive species and accompanying control efforts can have long term

pigeons), rodents and insects (e.g. mosquito, flea, louse and tsetse fly pests) can serve as vectors and reservoirs of human afflictions. Throughout recorded history, epidemics of human diseases, such as malaria, yellow fever, typhus, and bubonic plague, spread via these vectors.[20] A recent example of an introduced disease is the spread of the West Nile virus, which killed humans, birds, mammals, and reptiles.[110] The introduced Chinese mitten crabs are carriers of Asian lung fluke.[69] Waterborne disease agents, such as cholera bacteria (Vibrio cholerae), and causative agents of harmful algal blooms are often transported via ballast water.[111]

Economic

water hyacinths clog the Pasig River in Manila, Philippines in October 2020.[112]

Globally, invasive species management and control are substantial economic burdens, with expenditures reaching approximately $1.4 trillion annually.[55] The economic impact of invasive alien species alone was estimated to exceed $423 billion annually as of 2019. This cost has exhibited a significant increase, quadrupling every decade since 1970, underscoring the escalating financial implications of these biological invasions.[113]

Invasive species contribute to ecological degradation, altering ecosystem functionality and reducing the services ecosystems provide. This necessitates additional expenditures to control the spread of biological invasions, mitigate further impacts, and restore affected ecosystems. For example, the damage caused by 79 invasive species between 1906 and 1991 in the United States has been estimated at US$120 billion. Similarly, in China, invasive species have been reported to reduce the country's gross domestic product (GDP) by 1.36% per year.[109][114]

The management of biological invasions can be costly. In Australia, for instance, the expense to monitor, control, manage, and research invasive weed species is approximately AU$116.4 million per year, with costs directed solely to central and local government.[109]

While in some cases, invasive species may offer economic benefits, such as the potential for commercial forestry from invasive trees, these benefits are generally overshadowed by the substantial costs associated with biological invasions. In most cases, the economic returns from invasive species are far less than the costs they impose.[115][109]

United States

In the Great Lakes region the sea lamprey is an invasive species. In its original habitat, it had co-evolved as a parasite that did not kill its host. However, in the Great Lakes Region, it acts as a predator and can consume up to 40 pounds of fish in its 12–18 month feeding period.[116] Sea lampreys prey on all types of large fish such as lake trout and salmon. The sea lampreys' destructive effects on large fish negatively affect the fishing industry and have helped cause the collapse of the population of some species.[116]

ecosystem services, costs from impacts of invasive species would drastically increase.[96] It is often argued that the key to invasive species management is early detection and rapid response.[118] However, early response only helps when the invasive species is not frequently reintroduced into the managed area, and the cost of response is affordable.[119]

Achanakmar Tiger Reserve

R. norvegicus) have become serious pests[120] on farms, destroying stored grains.[96] The introduction of leaf miner flies (Agromyzidae), including the American serpentine leaf miner (Liriomyza trifolii), to California has caused losses in California's floriculture industry, as the larvae of these invasive species feed on ornamental plants.[121]

Invasive plant pathogens and insect vectors for plant diseases can suppress agricultural yields and harm nursery stock.

Asian citrus psyllid. As a result, citrus is under quarantine and highly regulated in areas where the psyllid has been found.[59]

Invasive species can impact outdoor recreation, such as fishing,

common coqui depresses real estate values in affected neighborhoods of Hawaii.[124] The large webs of the orb-weaving spider Zygiella x-notata, invasive in California, disrupts garden work.[125]

Europe

The overall economic cost of invasive alien species in Europe between 1960 and 2020 has been estimated at around US$140 billion (including potential costs that may or may not have actually materialised) or US$78 billion (only including observed costs known to have materialised). These estimates are very conservative. Models based on these data suggest a true annual cost of around US$140 billion in 2020.[126]

Italy is one of the most invaded countries in Europe, with an estimate of more than 3,000 alien species. The impacts of invasive alien species on the economy has been wide-ranging, from management costs, to loss of crops, to infrastructure damage. The overall economic cost of invasions to Italy between 1990 and 2020 was estimated at US$819.76 million (EUR€704.78 million). However, only 15 recorded species have more reliably estimated costs, hence the actual cost may be much larger than the aforementioned sum.[127]

France has an estimated minimum of 2,750 introduced and invasive alien species. Renault et al. (2021) obtained 1,583 cost records for 98 invasive alien species and found that they caused a conservative total cost between US$1.2 billion and 11.5 billion over the period 1993–2018. This study extrapolated costs for species invading France, but for which costs were reported only in other countries but not in France, which yielded an additional cost ranging from US$151 million to $3.03 billion. Damage costs were nearly eight times higher than management expenditure. Insects, and in particular the Asian tiger mosquito Aedes albopictus and the yellow fever mosquito Ae. aegypti, totalled very high economic costs, followed by non-graminoid terrestrial flowering and aquatic plants (Ambrosia artemisiifolia, Ludwigia sp. and Lagarosiphon major). Over 90% of alien species currently recorded in France had no costs reported in the literature, resulting in high biases in taxonomic, regional and activity sector coverages. However, no reports does not mean that there are no negative consequences and thus no costs.[128]

Favorable effects

The entomologist Chris D. Thomas argues that most introduced species are neutral or beneficial with respect to other species[129] but this is a minority opinion. The scientific community ubiquitously considers their effects on biodiversity to be negative.[130]

Some invasive species can provide a suitable habitat or food source for other organisms. In areas where a native has become extinct or reached a point that it cannot be restored, non-native species can fill their role. For instance, in the US, the endangered southwestern willow flycatcher mainly nests in the non-native tamarisk.[131] The introduced

Spartina foliosa, which offers better cover and nesting habitat.[133] In Australia, saltwater crocodiles, which had become endangered, have recovered by feeding on introduced feral pigs.[134]

Non-native species can act as catalysts for restoration, increasing the

heterogeneity and biodiversity in an ecosystem. This can create microclimates in sparse and eroded ecosystems, promoting the growth and reestablishment of native species. For example, in Kenya, guava trees in farmland are attractive to many fruit-eating birds, which drop seeds from rainforest trees as much as 2 km (1.2 mi) away beneath the guavas, encouraging forest regeneration.[135]

Non-native species can provide ecosystem services, functioning as

ribwort plantain as the food plant for its caterpillars.[139]

Some invasions offer potential commercial benefits. For instance,

methane digesters,[140] and other invasive plants can be harvested and utilized as a source of bioenergy.[141]

Control, eradication, and study

Humans are versatile enough to remediate adverse effects of species invasions.[142][8][143] The public is motivated by invasive species that impact their local area.[144] The control of alien species populations is important in the conservation of biodiversity in natural ecosystem. One of the most promising methods for controlling alien species is genetic.[145]

Cargo inspection and quarantine

The original motivation was to protect against

agricultural pests while still allowing the export of agricultural products. In 1994 the first set of global standards were agreed to, including the Agreement on the Application of Sanitary and Phytosanitary Measures (SPS Agreement). These are overseen by the World Trade Organization. The International Maritime Organization oversees the International Convention for the Control and Management of Ships' Ballast Water and Sediments (the Ballast Water Management Convention). Although primarily targeted at other, more general environmental concerns, the Convention on Biological Diversity does specify some steps that its members should take to control invasive species. The CBD is the most significant international agreement on the environmental consequences of invasive species; most such measures are voluntary and unspecific.[146]

Slowing spread

Firefighters are becoming responsible for decontamination of their own equipment, public water equipment, and private water equipment, due to the risk of aquatic invasive species transfer.[147] In the United States this is especially a concern for wildland firefighters because quagga and zebra mussel invasion and wildfires co-occur in the American West.[148][149][150][151]

Reestablishing species

Takahē have bred after translocation to restored islands, like these on Kapiti Island, off New Zealand.

Island restoration deals with the eradication of invasive species. A 2019 study suggests that if eradications of invasive animals were conducted on just 169 islands, the survival prospects of 9.4% of the Earth's most highly threatened terrestrial insular vertebrates would be improved.[152]

Invasive vertebrate eradication on islands aligns with United Nations Sustainable Development Goal 15 and associated targets.[153][154]

South Georgia, an island in the southern Atlantic Ocean with no permanent inhabitants, in the 18th century by sealing and whaling ships. They soon wrought havoc on the island's bird population, eating eggs and attacking chicks. In 2018, the South Georgia Island was declared free of invasive rodents after a multi-year extermination effort. Bird populations have rebounded, including the South Georgia pipit and South Georgia pintail, both endemic to the island.[155][156]

Taxon substitution

The Aldabra giant tortoise has helped to restore ecological equilibrium on two islets off Mauritius, including the Île aux Aigrettes (pictured).

Non-native species can be introduced to fill an ecological engineering role that previously was performed by a native species now extinct. The procedure is known as taxon substitution.[131][157][158] On many islands, tortoise extinction has resulted in dysfunctional ecosystems with respect to seed dispersal and herbivory. On the offshore islets of Mauritius, tortoises now extinct had served as the keystone herbivores. Introduction of the non-native Aldabra giant tortoises on two islets in 2000 and 2007 has begun to restore ecological equilibrium. The introduced tortoises are dispersing seeds of several native plants and are selectively grazing invasive plant species. Grazing and browsing are expected to replace ongoing intensive manual weeding, and the introduced tortoises are already breeding.[159]

By using them as food

Further information: List of edible invasive species

The practice of eating invasive species to reduce their populations has been explored. In 2005 Chef

Harvard and University of Vermont conservation biologist and recipient of the Rachel Carson Environmental award, runs a website named "Eat The Invaders".[165][166][160] In the 21st century, organizations including Reef Environmental Educational Foundation and the Institute for Applied Ecology have published cookbooks and recipes using invasive species as ingredients.[167][168] Invasive plant species have been explored as a sustainable source of beneficial phytochemicals and edible protein.[169][170][171]

Proponents of eating invasive organisms argue that humans have the ability to eat away any species that it has an appetite for, pointing to the many animals which humans have been able to hunt to extinction—such as the Caribbean monk seal, and the passenger pigeon. They further point to the success that Jamaica has had in significantly decreasing the population of lionfish by encouraging the consumption of the fish.[172] Skeptics point out that once a foreign species has entrenched itself in a new place—such as the Indo-Pacific lionfish that has now virtually taken over the waters of the Western Atlantic, Caribbean and Gulf of Mexico—eradication is almost impossible. Critics argue that encouraging consumption might have the unintended effect of spreading harmful species even more widely.[173]

Pesticides and herbicides

deliberately bred to increase nutrient intake to enable increased product output.[174]

Gene drive

A gene drive could be used to eliminate invasive species and has, for example, been proposed as a way to eliminate invasive mammal species in New Zealand.[175] Briefly put, an individual of a species may have two versions of a gene, one with a desired coding outcome and one not, with offspring having a 50:50 chance of inheriting one or the other. Genetic engineering can be used to inhibit inheritance of the non-desired gene, resulting in faster propagation of the desired gene in subsequent generations.[176] Gene drives for biodiversity conservation purposes are being explored as part of The Genetic Biocontrol of Invasive Rodents program because they offer the potential for reduced risk to non-target species and reduced costs when compared to traditional invasive species removal techniques.[177] A wider outreach network for gene drive research exists to raise awareness of the value of gene drive research for the public good.[176] Some scientists are concerned that the technique could wipe out species in their original native habitats.[178] The gene could mutate, causing unforeseen problems,[179] or hybridize with native species.[180]

Predicting invasive plants

Accurately predicting the impacts of non-native plants can be an especially effective management option because most introductions of non-native plant species are intentional.[181][182][183] Weed risk assessments attempt to predict the chances that a specific plant will have negative effects in a new environment, often using a standardized questionnaire. The resulting total score is associated with a management action such as "prevent introduction".[184][185] Assessments commonly use information about the physiology,[184] life history,[185] native ranges,[186] and phylogenetic relationships of the species evaluated. The effectiveness of the approach is debated.[187][188]

See also

References

Attribution

This article incorporates CC-BY-3.0 text from the reference[84]

Citations

  1. ^ "Global Compendium of Weeds: Vinca major". Hawaiian Ecosystems at Risk project (HEAR). Archived from the original on March 4, 2016. Retrieved February 13, 2020.
  2. JSTOR 20168448
    .
  3. ISBN 978-0-7923-6876-2. Archived
    from the original on December 18, 2021. Retrieved November 1, 2020.
  4. ^
    S2CID 18971654
    .
  5. ISBN 978-3-7643-7380-1. Archived
    from the original on December 18, 2021. Retrieved November 1, 2020.
  6. PMID 26349141
    .
  7. Encyclopedia Britannica. Archived
    from the original on August 2, 2020. Retrieved August 18, 2020. ...[M]odern humans are among the most successful invasive species.
  8. ^
    S2CID 203370925
    .
  9. ^ Leidy, Joseph (March 5, 2012). "Ancient American Horses". Academy of Natural Sciences, Drexel University. Archived from the original on March 5, 2012. Retrieved January 10, 2019.
  10. ^ a b c Lockwood, Julie L.; Hoopes, Martha F.; Marchetti, Michael P. (2007). Invasion Ecology (PDF). Blackwell Publishing. p. 7. Archived from the original (PDF) on September 24, 2015. Retrieved January 21, 2014.
  11. ^
    PMID 23404636
    .
  12. ^ "Invasive Species". National Geographic Society. Retrieved November 28, 2022.
  13. ^ "Executive Order 13112 - 1. Definitions". Ars.usda.gov. Archived from the original on June 25, 2021. Retrieved May 27, 2021.
  14. PMID 15243158
    .
  15. PMID 16024389
    .
  16. doi:10.1034/j.1600-0706.2002.970316.x
    .
  17. ^
    S2CID 14573817
    .
  18. ISBN 978-0444520333
    .
  19. JSTOR 2386294
    .
  20. ^
    ISBN 978-0-226-20638-7
    .
  21. ^
    doi:10.1890/0012-9615(1999)069[0025:EPSIHS]2.0.CO;2
    .
  22. doi:10.1890/02-3131
    .
  23. PMID 10797006
    .
  24. PMID 31346438
    .
  25. ISBN 978-0-87893-811-7
    .
  26. ^ "Brown Tree Snake". USDA National Invasive Species Information Center. Archived from the original on August 24, 2019.
  27. ISBN 0-14-301857-4
    .
  28. ^ "Rat remains help date New Zealand's colonisation". New Scientist. June 4, 2008. Archived from the original on June 11, 2022. Retrieved June 23, 2008.
  29. doi:10.5962/bhl.title.3415
    .
  30. PMID 15067121
    .
  31. doi:10.4314/mcd.v9i2.2
    .
  32. doi:10.1111/j.1365-2427.2009.02294.x
    .
  33. S2CID 18820290
    .
  34. PMID 22403653
    .
  35. doi:10.1016/j.gecco.2020.e01080
    .
  36. doi:10.1146/annurev-ecolsys-120213-091928
    .
  37. ^ "Plague of purple sea urchins ravages California's offshore ecosystem, heads to Oregon". Los Angeles Times. October 24, 2019. Archived from the original on July 14, 2021. Retrieved July 14, 2021.
  38. ^
    S2CID 5796978
    .
  39. JSTOR 2265502
    .
  40. S2CID 29816498
    .
  41. DTIC ADA368849
    .
  42. JSTOR 1313438
    .
  43. S2CID 3536174
    .
  44. S2CID 8628360
    .
  45. JSTOR 1940302
    .
  46. S2CID 104843296
    .
  47. doi:10.1016/j.jaridenv.2016.04.007
    .
  48. ^
    S2CID 13769125
    .
  49. S2CID 84660670
    .
  50. ISBN 978-1-107-11423-4. Archived
    from the original on August 16, 2021. Retrieved October 6, 2020.
  51. doi:10.1890/ES14-00374.1
    .
  52. PMID 18467157
    .
  53. doi:10.1016/s0169-5347(02)02554-5
    .
  54. S2CID 82590
    .
  55. ^
    ISBN 9781532110245
    .
  56. hdl:10019.1/119884
    .
  57. PMID 9844030
    .
  58. PMID 32663906
    .
  59. ^ a b "Citrus Greening". Clemson Public Service Activities - The Department of Plant Industry. Archived from the original on June 16, 2013.
  60. PMID 17711834
    .
  61. doi:10.1016/s0169-5347(01)02194-2
    .
  62. ISBN 9781482299441
    .
  63. doi:10.1890/070064
    .
  64. doi:10.3391/ai.2007.2.2.7
    .
  65. ^ "Biofouling moves up the regulatory agenda – GARD". www.gard.no. Archived from the original on January 13, 2020. Retrieved September 19, 2018.
  66. ^
    Journal Sentinel. Archived from the original
    on October 21, 2011. Retrieved April 22, 2017.
  67. S2CID 2371978
    .
  68. Oceanography and Marine Biology. 43: 419–453. Archived
    from the original on September 20, 2018. Retrieved September 19, 2018.
  69. ^ a b Aquatic invasive species. A Guide to Least-Wanted Aquatic Organisms of the Pacific Northwest. 2001. University of Washington
  70. ^ Great Lake Commission. "Status of Ballast Water Discharge Regulations in the Great Lakes Region" (PDF). Archived (PDF) from the original on February 12, 2020. Retrieved September 19, 2018.
  71. ^ USCG. "Ballast Water Management for Control of Non-Indigenous Species in Waters of the United States" (PDF). Archived (PDF) from the original on May 11, 2020. Retrieved September 19, 2018.
  72. hdl:1912/5118
    .
  73. PMID 17239404
    .
  74. S2CID 313824
    .
  75. doi:10.1016/j.oceaneng.2012.01.013
    .
  76. S2CID 53082967
    .
  77. doi:10.1146/annurev-ecolsys-102209-144650
    .
  78. ^ "Communication From The Commission To The Council, The European Parliament, The European Economic And Social Committee And The Committee Of The Regions Towards An EU Strategy On Invasive Species" (PDF). Archived (PDF) from the original on March 5, 2016. Retrieved May 17, 2011.
  79. doi:10.2298/ZMSPN1834019L
    .
  80. PMID 25032288. Archived
    from the original on November 17, 2019. Retrieved November 17, 2019.
  81. S2CID 205242896
    .
  82. ^ Millennium Ecosystem Assessment (2005). "Ecosystems and Human Well-being: Biodiversity Synthesis" (PDF). World Resources Institute. Archived (PDF) from the original on October 14, 2019. Retrieved September 18, 2007.
  83. PMID 23055062
    .
  84. ^
    doi:10.4102/koedoe.v50i1.153
    .
  85. S2CID 211266075. Archived
    (PDF) from the original on November 7, 2020. Retrieved September 28, 2020.
  86. PMID 15657121
    .
  87. doi:10.1111/1365-2664.14506
    .
  88. doi:10.1016/j.foreco.2023.120781
    .
  89. ^
    S2CID 711038
    .
  90. PMID 34517683
    .
  91. ^
    doi:10.1146/annurev.ecolsys.27.1.83
    .
  92. S2CID 24732543
    .
  93. doi:10.1016/j.ecolecon.2004.10.002
    .
  94. S2CID 85799394
    .
  95. doi:10.3897/neobiota.24.8378
    .
  96. ^
    doi:10.1016/j.ecolecon.2004.10.002
    .
  97. ^ "South/Adelges piceae - Bugwoodwiki". wiki.bugwood.org. Archived from the original on July 22, 2011. Retrieved June 26, 2022.
  98. ^ Schlarbaum, Scott E., Frederick Hebard, Pauline C. Spaine, and Joseph C. Kamalay. (1998) "Three American Tragedies: Chestnut Blight, Butternut Canker, and Dutch Elm Disease' Archived January 13, 2020, at the Wayback Machine. In: Britton, Kerry O., Ed. Exotic Pests of Eastern Forests Conference Proceedings; 1997 April 8–10; Nashville, TN. U.S. Forest Service and Tennessee Exotic Pest Plant Council., pp. 45–54.
  99. ^ Schlarbaum, Scott E.; Hebard, Frederick; Spaine, Pauline C.; Kamalay, Joseph C. (1997). "Three American Tragedies: Chestnut Blight, Butternut Canker and Dutch Elm Disease". (originally published via: Proceedings: Exotic Pests of Eastern Forests; (1997 April 8–10); Nashville, TN. Tennessee Exotic Pest Plant Council: 45–54.). Southern Research Station, Forest Service, United States Department of Agriculture. Archived from the original on April 24, 2012. Retrieved June 22, 2012.
    Alternative link and additional publication citation information: Tree Search, US Forest Service, USDA. http://www.treesearch.fs.fed.us/pubs/745 Archived November 23, 2012, at the Wayback Machine
  100. doi:10.1641/b580510
    .
  101. ^
    PMID 11344292
    .
  102. ^ "Glossary: definitions from the following publication: Aubry, C., R. Shoal and V. Erickson. 2005. Grass cultivars: their origins, development, and use on national forests and grasslands in the Pacific Northwest. USDA Forest Service. 44 pages, plus appendices.; Native Seed Network (NSN), Institute for Applied Ecology, 563 SW Jefferson Ave, Corvallis, OR 97333, USA". Nativeseednetwork.org. Archived from the original on February 22, 2006. Retrieved May 17, 2011.
  103. S2CID 32865913
    .
  104. ISBN 978-0-642-58336-9. Archived from the original
    (PDF) on January 2, 2004. Retrieved April 22, 2017.
  105. doi:10.1016/j.biocon.2015.01.013
    .
  106. ^ "Cape Town is Facing Day Zero". The Nature Conservancy. Retrieved November 6, 2023.
  107. ^ "Greater cape town water fund" (PDF). Archived (PDF) from the original on February 28, 2021. Retrieved November 16, 2020.
  108. S2CID 58888740
    .
  109. ^
    doi:10.1146/annurev-environ-033009-095548
    .
  110. PMID 10600742
    .
  111. doi:10.3354/meps168297
    .
  112. ^ Dela Cruz, Raymond Carl (October 7, 2020). "Water hyacinths ground Pasig River Ferry ops". Philippine News Agency. Archived from the original on October 28, 2023. Retrieved August 10, 2024.
  113. ^ Environment, U. N. (September 4, 2023). "Invasive Alien Species Report". www.unep.org. Retrieved May 29, 2024.
  114. S2CID 25890246
    .
  115. doi:10.1890/070064
    .
  116. ^ a b "Great Lakes Fishery Commission – Sea Lamprey". www.glfc.org. Archived from the original on October 25, 2017. Retrieved October 24, 2017.
  117. JSTOR 41717176
    .
  118. ^ 2008–2012 National Invasive Species Management Plan (PDF). Washington, DC.: National Invasive Species Council, Department of the Interior. 2008. Archived (PDF) from the original on September 29, 2015.
  119. doi:10.1111/1365-2664.12617
    .
  120. PMID 34538142
    .
  121. ^ "American serpentine leafminer – Liriomyza trifolii (Burgess)". entnemdept.ufl.edu. Archived from the original on November 25, 2019. Retrieved November 20, 2019.
  122. S2CID 85608607
    .
  123. ^ "Eurasian Watermilfoil in the Great Lakes Region". Great Lakes Information Network. November 1, 2006. Archived from the original on July 25, 2008.
  124. ^ Sin, Hans; Radford, Adam (2007). "Coqui frog research and management efforts in Hawaii". Managing Vertebrate Invasive Species: Proceedings of an International Symposium (G. W. Witmer, W. C. Pitt, K. A. Fagerstone, Eds) (PDF). Fort Collins, Colorado: USDA/APHIS/WS, National Wildlife Research Center. Archived from the original (PDF) on May 25, 2017. Retrieved June 26, 2013.
  125. ^ "Spider Invaders". KQED. October 18, 2010. Archived from the original on November 5, 2020. Retrieved December 13, 2020.
  126. S2CID 237460752
    .
  127. S2CID 238819772
    .
  128. S2CID 237462170
    .
  129. ISBN 978-1610397278
    .
  130. doi:10.1111/cobi.13413
    .
  131. ^
    S2CID 2947682
    .
  132. S2CID 267973120
    .
  133. ^ McBroom, Jen (December 2012). Clapper Rail Surveys for the San Francisco Estuary Invasive Spartina Project (PDF) (Report). Oakland, California: State Coastal Conservancy. Archived (PDF) from the original on March 5, 2017. Retrieved November 30, 2020.
  134. ^ Ham, Anthony (August 15, 2022). "Pigs to the Rescue: An Invasive Species Helped Save Australia's Crocodiles". The New York Times.
  135. ^ Thompson, Ken. Where Do Camels Belong? (p. 154). Greystone Books. Kindle Edition.
  136. ^ Pelton, Tom (May 26, 2006) The Baltimore Sun.
  137. PMID 17848999
    .
  138. ^ Adamson, Nancy Lee (February 3, 2011). An Assessment of Non-Apis Bees as Fruit and Vegetable Crop Pollinators in Southwest Virginia (PDF) (Doctor of Philosophy in Entomology thesis). Blacksburg, Virginia: Virginia Polytechnic Institute and State University. Archived from the original (PDF) on November 20, 2015. Retrieved November 5, 2015.
  139. ^ Thomas, Chris D.. Inheritors of the Earth (p. 148). PublicAffairs. Kindle Edition.
  140. S2CID 24217507.. Cited in Duke, J. (1983) Handbook of Energy Crops Archived February 12, 2013, at the Wayback Machine
    . Purdue University, Center for New Crops & Plants Products
  141. S2CID 83918875
    .
  142. ISBN 978-0-8166-9329-0
    .
  143. ^ Garrido-Pérez, Edgardo I.; Tella Ruiz, David (2016). "Homo sapiens (Primates: Hominidae): ¿una especie invasora o aún peor? Un reto para potenciar la Ecología y la Biología de la conservación". Puente Biológico. 8: 43–55.
    Translated as Garrido-Pérez, Edgardo I.; Tella Ruiz, David (2016). "Homo sapiens (Primates: Hominidae): an invasive species or even worse? A challenge for strengthening ecology and conservation biology". Archived from the original on June 11, 2022. Retrieved August 19, 2020 – via ResearchGate.
  144. ^ Hakam, Lara (February 2013). "Invasive Species: Public Awareness and Education" (PDF). University of Washington. Archived (PDF) from the original on November 5, 2021. Retrieved September 30, 2020.
  145. S2CID 256073288
    .
  146. doi:10.1146/annurev-environ-110615-085532
    .
  147. SUNY College at Brockport: Sea Grant. Archived
    (PDF) from the original on November 5, 2021. Retrieved May 23, 2021.
  148. ^ Ouellet, Nicky (August 23, 2017). "Wildland Firefighters Try to Combat Spread of Invasive Species". All Things Considered. NPR. Archived from the original on June 13, 2021. Retrieved May 23, 2021.
  149. ^ Ouellet, Nicky (July 27, 2017). "How Montana Is Fighting Invasive Hitchhikers On Firefighting Aircraft". Montana Public Radio. Archived from the original on May 23, 2021. Retrieved May 23, 2021.
  150. ^ National Wildfire Coordinating Group (January 2017). "Guide to Preventing Aquatic Invasive Species Transport by Wildland Fire Operations" (PDF). Archived (PDF) from the original on April 19, 2021. Retrieved May 23, 2021.
  151. ^ National Wildfire Coordinating Group (June 11, 2018). "Decontaminating Firefighting Equipment to Reduce the Spread of Aquatic Invasive Species" (PDF). Archived (PDF) from the original on April 28, 2021. Retrieved May 23, 2021.
  152. PMID 30917126
    .
  153. S2CID 221990256
    .
  154. ^ "Pursuing Sustainable Development for Island Communities by Removing Invasive Species". Island Conservation. August 13, 2020. Archived from the original on September 26, 2020. Retrieved August 13, 2020.
  155. ^ Warren, Matt (May 8, 2018). "Rat begone: Record eradication effort rids sub-Antarctic island of invasive rodents". Science. Archived from the original on May 9, 2018. Retrieved May 9, 2018.
  156. ^ Hester, Jessica Leight (May 17, 2018). "The Intrepid Rat-Sniffing Terriers of South Georgia Island". Atlas Obscura. Archived from the original on May 22, 2018. Retrieved June 6, 2018.
  157. ^ "Invasive plants can create positive ecological change". Science Daily. February 14, 2011. Archived from the original on May 25, 2017. Retrieved June 22, 2017. Invasive species could fill niches in degraded ecosystems and help restore native biodiversity....
  158. PMID 27039512
    .
  159. doi:10.1111/j.1600-0587.2010.06305.x
    .
  160. ^ a b Jacobsen, Rowan (March 24, 2014). "The Invasivore's Dilemma". Outside. Archived from the original on May 28, 2019. Retrieved May 28, 2019.
  161. PMID 24003552
    .
  162. ^ Billock, Jennifer (February 9, 2016). "Bite Back Against Invasive Species at Your Next Meal". Smithsonian Magazine. Archived from the original on March 22, 2019. Retrieved May 28, 2019.
  163. ^ Snyder, Michael (May 19, 2017). "Can We Really Eat Invasive Species into Submission?". Scientific American. Archived from the original on August 1, 2020. Retrieved May 28, 2019.
  164. ^ Kolbert, Elizabeth (December 2, 2012). "Alien Entrées". New Yorker. Archived from the original on October 18, 2019. Retrieved February 13, 2020.
  165. ^ "Bio". Joe Roman. March 12, 2015. Archived from the original on May 28, 2019. Retrieved June 26, 2022.
  166. ^ "Eat The Invaders — Fighting Invasive Species, One Bite At A Time!". eattheinvaders.org. Archived from the original on May 19, 2019. Retrieved June 26, 2022.
  167. ISBN 9780578427942. Archived
    from the original on October 4, 2020. Retrieved May 28, 2019.
  168. ^ "Lionfish Cookbook 2nd Edition | Reef Environmental Education Foundation". www.reef.org. Archived from the original on May 28, 2019. Retrieved May 28, 2019.
  169. hdl:2164/15875
    .
  170. S2CID 244407388
    .
  171. hdl:11336/198362
    .
  172. ^ Conniff, Richard (January 24, 2014). "Invasive Lionfish, the Kings of the Caribbean, May Have Met Their Match". Yahoo News. Archived from the original on January 27, 2014.
  173. ^ Bryce, Emma (February 6, 2015). "Cooking can't solve the threat of invasive species". The Guardian. Archived from the original on October 17, 2017. Retrieved October 16, 2017.
  174. ^
    S2CID 219563975
    .
  175. ^ Kalmakoff, James (October 11, 2016). "CRISPR for pest-free NZ". Archived from the original on October 19, 2016. Retrieved October 19, 2016.
  176. ^ a b "Mission & Principles Statement". July 1, 2018. Retrieved November 14, 2018.
  177. ^ "GBIRd Fact Sheet" (PDF). April 1, 2018. Retrieved November 14, 2018.
  178. ^ "'Gene drives' could wipe out whole populations of pests in one fell swoop". The Conversation. August 8, 2017.
  179. ^ "An Argument Against Gene Drives to Extinguish New Zealand Mammals: Life Finds a Way". Plos blogs. November 30, 2017.
  180. ^ Campbell, Colin (October 17, 2016). "Risks may accompany gene drive technology". Otago Daily Times. Retrieved October 19, 2016.
  181. hdl:10138/235238
    .
  182. PMID 23825135
    .
  183. S2CID 82300163
    .
  184. ^
    doi:10.1006/jema.1999.0297
    .
  185. ^
    S2CID 254280051
    .
  186. S2CID 253220107
    .
  187. S2CID 86276601
    .
  188. doi:10.1111/j.1365-2664.2011.02069.x
    .

Further reading
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