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- Glogers_rule abstract "Gloger's rule is a zoological rule which states that within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments, e.g. near the equator. It was named after the zoologist Constantin Wilhelm Lambert Gloger, who first remarked upon this phenomenon in 1833 in a review of covariation of climate and avian plumage color. (Erwin Stresemann notes that the idea was already expressed by Pallas in Zoographia Rosso-Asiatica (1811)) Gloger found that birds in more humid habitats tended to be darker than their relatives from regions with higher aridity. Over 90% of the 52 North American bird species researched conform to this rule.One explanation of Gloger's rule in the case of birds appears to be the increased resistance of dark feathers to feather- or hair-degrading bacteria such as Bacillus licheniformis. Feathers in humid environments have a greater bacterial load, and humid environments are more suitable for microbial growth; dark feathers or hair are more difficult to break down. More resilient eumelanins – dark brown to black – are deposited in hot and humid regions, whereas in arid regions, pheomelanins – reddish to sandy color – predominate due to the benefit of crypsis.Among mammals, there is a marked tendency in equatorial and tropical regions to have a darker skin color than poleward relatives. In this case, the underlying cause is probably the need to better protect against excessive solar UV radiation at lower latitudes. However absorption of a certain amount of UV radiation is necessary for the production of certain vitamins, notably vitamin D (see also Osteomalacia).This principle is also vividly demonstrated among human populations. Populations that evolved in sunnier environments closer to the equator tend to be darker-pigmented than populations originating farther from the equator. There are exceptions, however; among the most well known are the Tibetans and Inuit, who have darker skin than might be expected from their native latitudes. In the first case, this is apparently an adaptation to the extremely high UV irradiation on the Tibetan Plateau, whereas in the second case, the necessity to absorb UV radiation is alleviated by the Inuit's diet naturally rich in vitamin D.".
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- Glogers_rule wikiPageExternalLink Condor04b.pdf.
- Glogers_rule wikiPageID "2907440".
- Glogers_rule wikiPageLength "5113".
- Glogers_rule wikiPageOutDegree "35".
- Glogers_rule wikiPageRevisionID "624076668".
- Glogers_rule wikiPageWikiLink Allens_rule.
- Glogers_rule wikiPageWikiLink Arid.
- Glogers_rule wikiPageWikiLink August_Schulz.
- Glogers_rule wikiPageWikiLink Aves.
- Glogers_rule wikiPageWikiLink Bacillus_licheniformis.
- Glogers_rule wikiPageWikiLink Bergmanns_rule.
- Glogers_rule wikiPageWikiLink Biological_pigment.
- Glogers_rule wikiPageWikiLink Bird.
- Glogers_rule wikiPageWikiLink C._L._Gloger.
- Glogers_rule wikiPageWikiLink Category:Ecogeographic_rules.
- Glogers_rule wikiPageWikiLink Category:Zoology.
- Glogers_rule wikiPageWikiLink Constantin_Wilhelm_Lambert_Gloger.
- Glogers_rule wikiPageWikiLink Covariance.
- Glogers_rule wikiPageWikiLink Covariation.
- Glogers_rule wikiPageWikiLink Crypsis.
- Glogers_rule wikiPageWikiLink Current_Ornithology_(journal).
- Glogers_rule wikiPageWikiLink Equator.
- Glogers_rule wikiPageWikiLink Erwin_Stresemann.
- Glogers_rule wikiPageWikiLink Eumelanin.
- Glogers_rule wikiPageWikiLink Harvard_University_Press.
- Glogers_rule wikiPageWikiLink Humid.
- Glogers_rule wikiPageWikiLink Humidity.
- Glogers_rule wikiPageWikiLink Inuit.
- Glogers_rule wikiPageWikiLink Mammal.
- Glogers_rule wikiPageWikiLink Melanin.
- Glogers_rule wikiPageWikiLink Osteomalacia.
- Glogers_rule wikiPageWikiLink Peter_Simon_Pallas.
- Glogers_rule wikiPageWikiLink Pheomelanin.
- Glogers_rule wikiPageWikiLink Plumage.
- Glogers_rule wikiPageWikiLink Prentice_Hall.
- Glogers_rule wikiPageWikiLink The_Condor_(journal).
- Glogers_rule wikiPageWikiLink Tibetan_Plateau.
- Glogers_rule wikiPageWikiLink Tibetan_people.
- Glogers_rule wikiPageWikiLink Tropical.
- Glogers_rule wikiPageWikiLink Tropics.
- Glogers_rule wikiPageWikiLink UV_radiation.
- Glogers_rule wikiPageWikiLink Ultraviolet.
- Glogers_rule wikiPageWikiLink Vitamin.
- Glogers_rule wikiPageWikiLink Vitamin_D.
- Glogers_rule wikiPageWikiLink Warm-blooded.
- Glogers_rule wikiPageWikiLink Zoology.
- Glogers_rule wikiPageWikiLinkText "Gloger's rule".
- Glogers_rule hasPhotoCollection Glogers_rule.
- Glogers_rule wikiPageUsesTemplate Template:Biological_rules.
- Glogers_rule wikiPageUsesTemplate Template:Cite_book.
- Glogers_rule wikiPageUsesTemplate Template:Cite_journal.
- Glogers_rule wikiPageUsesTemplate Template:Reflist.
- Glogers_rule subject Category:Ecogeographic_rules.
- Glogers_rule subject Category:Zoology.
- Glogers_rule hypernym Rule.
- Glogers_rule type AdministrativeRegion.
- Glogers_rule comment "Gloger's rule is a zoological rule which states that within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments, e.g. near the equator. It was named after the zoologist Constantin Wilhelm Lambert Gloger, who first remarked upon this phenomenon in 1833 in a review of covariation of climate and avian plumage color.".
- Glogers_rule label "Gloger's rule".
- Glogers_rule sameAs قاعدة_جلوجر.
- Glogers_rule sameAs Glogerovo_pravidlo.
- Glogers_rule sameAs Regulo_de_Gloger.
- Glogers_rule sameAs Regla_de_Gloger.
- Glogers_rule sameAs Glogeri_reegel.
- Glogers_rule sameAs Règle_de_Gloger.
- Glogers_rule sameAs כלל_גלוגר.
- Glogers_rule sameAs Gloger-szabály.
- Glogers_rule sameAs Regola_di_Gloger.
- Glogers_rule sameAs 글로거의_법칙.
- Glogers_rule sameAs Regel_van_Gloger.
- Glogers_rule sameAs Reguła_Glogera.
- Glogers_rule sameAs m.08bsqd.
- Glogers_rule sameAs Правило_Глогера.
- Glogers_rule sameAs Gloger_kanunu.
- Glogers_rule sameAs Правило_Глогера.
- Glogers_rule sameAs Q908358.
- Glogers_rule sameAs Q908358.
- Glogers_rule wasDerivedFrom Glogers_ruleoldid=624076668.
- Glogers_rule isPrimaryTopicOf Glogers_rule.