Results 61 to 70 of about 1,833 (169)

All-metallic wide-angle metasurfaces for multifunctional polarization manipulation

Opto-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, Pu Mingbo, Li Xiong, Guo Yinghui, Luo Xiangang   +4 more
doaj   +1 more source

Ineffective crypsis in a crab spider: a prey community perspective [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2009
Cryptic coloration is assumed to be beneficial to predators because of an increased encounter rate with unwary prey. This hypothesis is, however, very rarely, if ever, studied in the field. The aim of this study was to quantify the encounter rate and capture success of an ambush predator, in the field, as a function of its level of colour ...
Brechbühl, Rolf, Casas, Jérome, Bacher, Sven   +2 more
openaire   +4 more sources

Geographic Variation in Diving Behaviour and Skin Isotope Ratios of Northern Bottlenose Whales, Hyperoodon ampullatus

Ecology and Evolution, Volume 16, Issue 6, June 2026.
High‐resolution multi‐sensor tag data from northern bottlenose whale populations in the northeast and northwest Atlantic showed differences in resting and foraging time budgets and behaviour. Skin biopsy stable isotopes corroborated likely dietary differences. Variability between populations has far‐reaching relevance for ecology and conservation, with
Sascha K. Hooker, Eilidh Siegal, Tessa Plint, Laura J. Feyrer, Tomoko Narazaki, Kagari Aoki, Matt Bivins, Patrick J. O. Miller   +7 more
wiley   +1 more source

Defeating Crypsis: Detection and Learning of Camouflage Strategies

PLoS ONE, 2013
Camouflage is perhaps the most widespread defence against predators in nature and an active area of interdisciplinary research. Recent work has aimed to understand what camouflage types exist (e.g. background matching, disruptive, and distractive patterns) and their effectiveness.
Troscianko, Jolyon, Lown, Alice E, Hughes, Anna E, Stevens, Martin   +3 more
openaire   +5 more sources

Distribution and Communities of Crypsis Aculeata and Heleochloa Schoenoides in Slovakia [PDF]

Hacquetia, 2008
Distribution and Communities ofCrypsis AculeataandHeleochloa Schoenoidesin SlovakiaThe distribution and communities of two annual grassesCrypsis aculeataandHeleochloa schoenoideswere studied in Slovakia during 2003-2007. Herbarium and field data were used to reconstruct the occurrence of both taxa. A strong decline inC. aculeatalocalities was observed.
Dítě, Daniel, Eliáš, Pavol, Grulich, Vit, Sádovský, Marek   +3 more
openaire   +2 more sources

Untangling Colour Diversity: Ecogeographic Patterns in Two Scolopendra Species Revealed by Citizen Science

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Using citizen‐science records, we analysed ecogeographic patterns of colour polymorphism in two closely related centipede species across Japan. While two colour morphs in Scolopendra mutilans are broadly sympatric, they are geographically restricted in S. japonica despite overlapping climatic niches and biotic interactions.
Ryosuke Uno, Shouta Iyoda
wiley   +1 more source

Behaviour of Robsonella fontaniana in response to a potential predator Conducta de Robsonella fontaniana frente a un depredador potencial

Latin American Journal of Aquatic Research, 2012
Cephalopods have two main defence strategies: the first consists on reducing the odds of being detected by a predator, while the second focuses on avoiding capture.
Juan Francisco Ruiz, Roger D Sepúlveda, Christian M Ibáñez   +2 more
doaj  

charisma: An R package to perform reproducible colour characterization of digital images for biological studies

Methods in Ecology and Evolution, Volume 17, Issue 6, Page 1703-1718, June 2026.
Abstract Advances in digital imaging and software tools have provided increasingly accessible datasets and methods for analysing colour evolution. Despite the variety of computational packages available, most rely on colour classification before running analyses.
Shawn T. Schwartz, Whitney L. E. Tsai, Elizabeth A. Karan, Mark S. Juhn, Allison J. Shultz, John E. McCormack, Thomas B. Smith, Michael E. Alfaro   +7 more
wiley   +1 more source

Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur [PDF]

Nature, 2018
Ichthyosaurs are extinct marine reptiles that display a notable external similarity to modern toothed whales. Here we show that this resemblance is more than skin deep. We apply a multidisciplinary experimental approach to characterize the cellular and molecular composition of integumental tissues in an exceptionally preserved specimen of the Early ...
Lindgren, Johan, Sjövall, Peter, Thiel, Volker, Zheng, Wenxia, Ito, Shosuke, Wakamatsu, Kazumasa, Hauff, Rolf, Kear, Benjamin P., Engdahl, Anders, Alwmark, Carl, Eriksson, Mats E., Jarenmark, Martin, Sachs, Sven, Ahlberg, Per E., Marone, Federica, Kuriyama, Takeo, Gustafsson, Ola, Malmberg, Per, Thomen, Aurélien, Rodríguez-Meizoso, Irene, Uvdal, Per, Ojika, Makoto, Schweitzer, Mary H.   +22 more
openaire   +5 more sources

Beyond Extrafloral Nectaries: Plant Traits as Drivers of Spider Occurrence in the Cerrado

Austral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Patterns of predator occurrence arise from a mosaic of plant‐derived cues, yet most studies address these traits in isolation. Although extrafloral nectaries have received considerable attention, we lack a comprehensive view of how multiple plant traits jointly affect the diversity and abundance of spiders.
Fábio Carlos da Silva Filho, Vanessa Stefani   +1 more
wiley   +1 more source