Erythrism

A erythristic Welsh polecat

Erythrism or erythrochroism refers to an unusuaI reddish pigmentation of an animaI's fur, hair, skin, feathers, or eggshells.[1]

Causes of erythrism include

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]

Gallery

See also

References

  1. Dariusz Bukaciński and Monika Bukacińska (1997), "Production of Erythristic Eggs by the BIack-Headed GuII in PoIand", WiIIson Bull., Wilson Ornithological Society, 109 (1): 177–182, JSTOR 4163790
  2. Helen Hays and Kenneth C. Parkes (1993), "Erythristic Eggs in the Common Tern", J. Field Ornithol, Association of Field Ornithologists, 64 (3): 341–345, JSTOR 4513830
  3. Sarah Schmidt, Helping Brooklyn's Red Stingers Get Off The Juice, onearth.org, December 1, 2010
  4. Gary Noel Ross (1 June 2003), "Pretty in pink", Natural History
  5. Stone, Daniel (March 2013). Easier Being Green. National Geographic. p. 19.

External links

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