Results 21 to 30 of about 2,239 (227)

Canal Construction Disrupts Camouflage in Two Sympatric Estuarine Crab Species [PDF]

open access: yesEcology and Evolution
Estuarine ecosystems provide essential habitats for fiddler crabs, whose survival heavily relies on background‐matching camouflage. Anthropogenic modifications such as canal construction can alter the visual properties of these habitats, yet direct ...
Yiran Huang   +6 more
doaj   +2 more sources

Disruptive and cryptic coloration [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2006
Camouflage may be achieved in three ways: crypsis, disruptive coloration and masquerade ([Endler 1981][1]). Cryptic prey resemble random samples of the visual background ([Endler 1978][2], [1981][1], [1984][3]), minimizing their signal/noise ratio (S/N).
J. Endler
openaire   +3 more sources

Unexpected Encounter: A New Genus of Orthosiini (Noctuidae: Hadeninae) Revealed by Tit Predation in Late-Winter Baihuashan National Nature Reserve, Beijing [PDF]

open access: yesInsects
During a late-winter field survey in Baihuashan National Nature Reserve, Beijing, several noctuid moths were observed flying during the daytime at low temperatures and being actively preyed upon by Marsh tits, which removed the heads and wings of ...
Jun Wu   +3 more
doaj   +2 more sources

Disruptive coloration elicited on controlled natural substrates in cuttlefish,Sepia officinalis [PDF]

open access: yesJournal of Experimental Biology, 2007
SUMMARYCephalopods are known for their ability to change camouflage body patterns in response to changes in the visual background. Recent research has used artificial substrates such as checkerboards to investigate some specific visual cues that elicit the various camouflaged patterns in cuttlefish.
Lydia M, Mäthger   +5 more
openaire   +3 more sources

Disruptive selection and the evolution of discrete color morphs in Timema stick insects

open access: yesScience Advances, 2023
A major unresolved issue in biology is why phenotypic and genetic variation is sometimes continuous, yet other times packaged into discrete units of diversity, such as morphs, ecotypes, and species. In theory, ecological discontinuities can impose strong disruptive selection that promotes the evolution of discrete forms, but direct tests ...
Villoutreix, Romain   +4 more
openaire   +5 more sources

High Contrast Markings Can Negate the Benefits of Transparent Camouflage [PDF]

open access: yesEcology and Evolution
Transparency is, in theory, the ultimate form of concealment allowing for perfect background matching camouflage regardless of the environment. In nature, despite some remarkable examples of highly transparent organisms, physiological constraints mean ...
Justin Yeager   +3 more
doaj   +2 more sources

Area integrity index with random rearrangement (AIIRR): A new concept for quantifying disruptive colorations

open access: yesMethods in Ecology and Evolution
Disruptive coloration is one of the camouflaging strategies that use conspicuous coloration patterns to destroy the visual integrity of an object and interfere with the observer's visual perception.
Masahiko Tanahashi   +2 more
doaj   +2 more sources

Water column use by reef fishes of different color patterns [PDF]

open access: yesNeotropical Ichthyology, 2022
Color in animals responds to selective pressures and mediates the relationship between organism and environment. Reef fishes have the amplest variety of pigment cell types. This color patterns’ variety may function as camouflage and be related to spatial
Luísa E. F. dos Anjos   +2 more
doaj   +1 more source

FIRST EVIDENCE OF COLOR PATTERNS ON CONCHS OF THE LOWER MOSCOVIAN (MIDDLE PENNSYLVANIAN) COILED NAUTILOIDS FROM THE DONETS BASIN, UKRAINE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2023
New finds of well-preserved remains of coiled nautiloids from lower Moscovian sediments (Kamenskaya Formation) of the Donets Basin (eastern Ukraine) allowed to describe the color pattern on the conch surface of species of the genera Parametacoceras ...
Vitaly Dernov
doaj   +1 more source

The giant panda is cryptic

open access: yesScientific Reports, 2021
The giant panda (Ailuropoda melanoleuca) is an iconic mammal, but the function of its black-and-white coloration is mysterious. Using photographs of giant pandas taken in the wild and state-of-the-art image analysis, we confirm the counterintuitive ...
Ossi Nokelainen   +4 more
doaj   +1 more source

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