Results 41 to 50 of about 2,106 (199)

Camouflaged and Watchful: Stonefish Escape Behavior on Crowded Reefs

open access: yesJournal of Marine Science and Engineering
Understanding escape behavior in cryptic and venomous reef fishes is critical for both ecological theory and public safety in coastal environments. We quantified the Flight Initiation Distance (FID) of 65 individual stonefish (Synanceia spp.) across four
Lena Younger, Samai Peretz, Reuven Yosef
doaj   +1 more source

Shell color polymorphism in marine gastropods

open access: yesEvolutionary Applications, 2023
Marine gastropods are characterized by an incredible variation in shell color. In this review, we aim to introduce researchers to previous studies of shell color polymorphism in this group of animals, trying to provide an overview of the topic and ...
Juan Gefaell   +2 more
doaj   +1 more source

Aromatic plants, nest bacterial diversity, and nestling condition in Corsican blue tits

open access: yesOikos, EarlyView.
According to the ‘nest protection hypothesis', some passerines incorporate fresh aromatic plants into their nests which reduce pathogens that can negatively affect nestlings. We experimentally evaluated the effect of five aromatic plant species on the nest bacterial microbiota of Corsican blue tits Cyanistes caeruleus.
Hélène Dion‐Phénix   +5 more
wiley   +1 more source

All-metallic wide-angle metasurfaces for multifunctional polarization manipulation

open access: yesOpto-Electronic Advances, 2019
Optical camouflage is a magical capability of animals as first noticed in 1794 by Erasmus Darwin in Zoonomia, but current biomimetic camouflage strategies cannot be readily applied in complex environments involving multispectral and in particular multi ...
Ma Xiaoliang   +4 more
doaj   +1 more source

Continuous Variation in an Aposematic Pattern Affects Background Contrast, but Is Not Associated With Differences in Microhabitat Use

open access: yesFrontiers in Ecology and Evolution, 2022
Variation in aposematic signals was once predicted to be rare, yet in recent years it has become increasingly well documented. Despite increases in the frequency with which polytypism and polymorphism have been suggested to occur, population-wide ...
Justin Yeager, James B. Barnett
doaj   +1 more source

Matching habitat choice could be brightness‐based instead of hue‐based in green‐brown polymorphic grasshoppers

open access: yesOikos, EarlyView.
Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley   +1 more source

Aposematic signaling and seasonal variation in dorsal pelage in a venomous mammal

open access: yesEcology and Evolution, 2021
In mammals, colouration patterns are often related to concealment, intraspecific communication, including aposematic signals, and physiological adaptations.
K. Anne‐Isola Nekaris   +5 more
doaj   +1 more source

Crypsis in the Pelagic Environment [PDF]

open access: yesAmerican Zoologist, 1990
Pelagic aquatic environments differ from terrestrial environments in being three-dimensional and relatively homogeneous, rather than two-dimensional and heterogeneous. The present paper examines the causes and consequences of these differences in the context of their influence on the interactions of animals with environmental light. Particular emphasis
openaire   +1 more source

Crypsis Decreases with Elevation in a Lizard [PDF]

open access: yesDiversity, 2019
Predation usually selects for visual crypsis, the colour matching between an animal and its background. Geographic co-variation between animal and background colourations is well known, but how crypsis varies along elevational gradients remains unknown.
Gregorio Moreno-Rueda   +4 more
openaire   +2 more sources

Tradeoffs between brain and digestive tissues across elevations in Typhlomys daloushanensis: evidence for sexual dimorphism

open access: yesWildlife Biology, EarlyView.
To cope with highly stochastic and/or heterogeneous environmental conditions, animals must balance energy resource allocation across physiological processes. The digestive tract and brain exhibit structural variations under strong developmental and selective pressures that vary across environmental gradients both between and within species.
Yimei Yan   +9 more
wiley   +1 more source

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