Erythrism
Erythrism or erythrochroism refers to an unusual reddish pigmentation of an animal's hair, skin, feathers, or eggshells.[1]
Causes of erythrism include:
- Genetic mutations which cause an absence of a normal pigment and/or excessive production of others[2]
- Diet, as in bees feeding on "bright red corn syrup" used in maraschino cherry manufacturing.[3]
Erythrism in
katydids has been occasionally observed. The coloring might be a camouflage that helps some members of the species survive on red plants.[4] There is also consensus that the erythristic mutation is actually a dominant trait among katydid species, albeit a disadvantageous one, due to the overwhelmingly green coloration of most foliage. Hence, most pink or otherwise vividly colored katydids do not survive to adulthood, and this observation explains their rarity.[5] Erythrism in leopards is rare, but one study[6] reported that two of twenty-eight leopards seen in camera traps in a South African nature reserve were erythristic, and the authors found records of five other "strawberry" leopards from the region.[7]
Gallery
See also
References
- JSTOR 4163790
- JSTOR 4513830
- onEarth. Archived from the originalon December 24, 2010.
- ^ Gary Noel Ross (1 June 2003), "Pretty in pink", Natural History
- ^ Stone, Daniel (March 2013). Easier Being Green. National Geographic. p. 19.
- ISSN 2311-9284.
- ^ "Ultra-rare 'strawberry' leopards discovered in South Africa (Photos)". Earth Touch News Network. Retrieved 2020-02-29.
External links
- The Mystery of the Red Bees of Red Hook, The New York Times, November 30, 2010
- Rare Pink Katydid Discovered in Northern Illinois, Chicago Tribune, August 10, 2011
- Another Nice Example of Erythrism: Grasshopper, August 28, 2009
- Erythrism: Grasshopper in New Zealand, Rod Morris, 2010
- Pink Animal Amazingness Archived 2008-12-23 at the Wayback Machine, Paula Kashtan, lemondrop.com, December 18, 2008