Results 31 to 40 of about 151,128 (279)

PMEL p.Leu18del dilutes coat color of Kumamoto sub-breed of Japanese Brown cattle

open access: yesBMC Genomics, 2022
Background Coat color is important for registration and maintenance of livestock. Standard coat color of Kumamoto sub-breed of Japanese Brown cattle is solid brown, but individuals with diluted coat color have been observed recently.
Satoshi Kimura   +11 more
doaj   +1 more source

Enclosure Background Preferences Differ between Sexes and Color Morphs in the Gouldian Finch

open access: yesAnimals, 2023
Most wild animals camouflage well into their environment, providing protection from predators, whereas captive animals often contrast with their background. This can cause stress for the animal, which may perceive it as being exposed.
Robert I. Moise   +2 more
doaj   +1 more source

Gray plumage color is more cryptic than brown in snowy landscapes in a resident color polymorphic bird

open access: yesEcology and Evolution, 2020
Camouflage may promote fitness of given phenotypes in different environments. The tawny owl (Strix aluco) is a color polymorphic species with a gray and brown morph resident in the Western Palearctic.
Katja Koskenpato   +3 more
doaj   +1 more source

Evolutionary history and diversity in the ball roller beetle Canthon cyanellus

open access: yesFrontiers in Ecology and Evolution, 2023
To understand the evolutionary history of species, it is necessary to know the mechanisms for reproductive isolation, divergence-time between populations, and the relative action of the evolutionary forces (e.g., mutation, genetic drift, gene flow ...
Janet Nolasco-Soto   +3 more
doaj   +1 more source

Does color matter? Molecular and ecological divergence in four sympatric color morphs of a coral reef fish

open access: yesEcology and Evolution, 2020
Non‐sex‐linked color polymorphism is common in animals and can be maintained in populations via balancing selection or, when under diversifying selection, can promote divergence.
Michelle R. Gaither   +8 more
doaj   +1 more source

Maintenance of polymorphism in the orb weaving spider species Agalenatea redii (Araneae, Araneidae) [PDF]

open access: yes, 2012
The maintenance of polymorphism within populations may be the consequence of several elements of species life history such as use of space, activity rhythms, predation, parasitism and reproduction.
François, Olivier   +3 more
core   +2 more sources

Color-assortative mating in a color-polymorphic lacertid lizard [PDF]

open access: yesBehavioral Ecology, 2012
Color polymorphisms are common in lizards, which provide an excellent model system to study their evolution and adaptive function. The lacertid genus Podarcis is particularly interesting because it comprises several polymorphic species. Previous studies with lacertid lizards have tried to explain the maintenance of color polymorphisms by correlational ...
Guillem Pérez i de Lanuza   +2 more
openaire   +2 more sources

Sex-related differences in chromatic sensitivity [PDF]

open access: yes, 2008
Generally women are believed to be more discriminating than men in the use of colour names and this is often taken to imply superior colour vision. However, if both X-chromosome linked colour deficient males (~8%) and females (
J.A. HARLOW   +7 more
core   +1 more source

Nuclear Gene Indicates Coat-Color Polymorphism in Mammoths [PDF]

open access: yesScience, 2006
By amplifying the melanocortin type 1 receptor from the woolly mammoth, we can report the complete nucleotide sequence of a nuclear-encoded gene from an extinct species. We found two alleles and show that one allele produces a functional protein whereas the other one encodes a protein with strongly reduced activity.
Römpler, Holger   +8 more
openaire   +6 more sources

The Biology of Polymorphic Melanic Side-Spotting Patterns in Poeciliid Fishes

open access: yesFrontiers in Ecology and Evolution, 2021
Melanin-based color patterns are an emerging model for studying molecular and evolutionary mechanisms driving phenotypic correlations. Extensive literature exists on color patterns and their correlated traits in the family Poeciliidae, indicating that ...
Tanja C. Zerulla, Philip K. Stoddard
doaj   +1 more source

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