Results 71 to 80 of about 3,478 (195)

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

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

Darwin's Naturalization Conundrum in the Azores: Scale‐Dependent Patterns of Arthropod Invasion

Diversity and Distributions, Volume 32, Issue 10, October 2026.
ABSTRACT Aim To test the mechanisms governing the assembly of exotic arthropods within endemic‐rich island communities by evaluating Darwin's naturalization conundrum, which predicts that invasion success occurs through either functional dissimilarity from native species (Naturalization Hypothesis) or functional similarity with them (Pre‐adaptation ...
Guilherme Oyarzabal, Pedro Cardoso, François Rigal, Mário Boieiro, Ana M. C. Santos, Isabel R. Amorim, Jagoba Malumbres‐Olarte, Ricardo Costa, Sébastien Lhoumeau, Gábor Pozsgai, Rosalina Gabriel, Paulo A. V. Borges   +11 more
wiley   +1 more source

The gene cortex controls mimicry and crypsis in butterflies and moths [PDF]

Nature, 2016
The wing patterns of butterflies and moths (Lepidoptera) are diverse and striking examples of evolutionary diversification by natural selection. Lepidopteran wing colour patterns are a key innovation, consisting of arrays of coloured scales. We still lack a general understanding of how these patterns are controlled and whether this control shows any ...
Nadeau, Nicola, Pardo-Diaz, Carolina, Whibley, Annabel, Supple, Megan, Saenko, Suzanne, Wallbank, Richard, Wu, Grace, Maroja, Luana, Ferguson, Laura, Hanly, Joseph, Hines, Heather, Salazar, Camilo, Merrill, Richard, Dowling, Andrea, Ffrench-Constant, Richard, Llaurens, Violaine, Joron, Mathieu, Mcmillan, W, Jiggins, Chris   +18 more
openaire   +7 more sources

Average (± SE) prey crab crypsis index at five densities with (solid circles) and without (open circles) predator presence.

, 2014
The lines represent linear regressions for when predators were present (closed circles; crypsis = 0.732−(0.0134×density), R2 = 0.172) and absent (open circles; crypsis = 0.551−(0.00971×density), R2 = 0.106).
Benjamin Daly (523926), W. Christopher Long (523927)   +1 more
core   +1 more source

Independent Major‐Effect Loci and Limited Trait Associations Characterize Warning Colour Variation Across Sexes and Life Stages in the Wood Tiger Moth (Arctia plantaginis)

Molecular Ecology, Volume 35, Issue 20, October 2026.
ABSTRACT Variation in warning colouration is common, despite strong positive frequency‐dependent selection favouring the most common morph and may arise from spatially or temporally variable selection or associations with other traits. We investigated the maintenance of warning colour variation in the wood tiger moth, Arctia plantaginis, which shows ...
Eva L. Koch, Melanie N. Brien, Yingguang Frank Chan, Marek Kučka, Cristina Ottocento, Chiara De Pasqual, Eetu Selenius, Ossi Nokelainen, Juan A. Galarza, Sandra Winters, Chris D. Jiggins, Johanna Mappes   +11 more
wiley   +1 more source

Kogia Records in Brazilian Equatorial and Southwestern Atlantic Oceans

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The pygmy (Kogia breviceps) and dwarf (Kogia sima) sperm whales are cryptic cetaceans characterized by inconspicuous surfacing behavior, small group sizes, and deep‐diving habits, making visual detection particularly challenging. Here, we present the first broad‐scale passive acoustic monitoring (PAM) assessment of Kogia spp.
Joao Pedro M. Mura, Raphael B. Machado, Yasmin P. Viana, Natalia Rodrigues‐Soares, Giovanne A. Ferreira, Larissa Kelmer L. Kascher, Barbara S. Silva, Lucia O. Alencar, Gabrieli M. Rodrigues, Franciele R. de Castro, Daniela F. Godoy, Jose L. Pizzorno, Artur Andriolo   +12 more
wiley   +1 more source

Data from: Active background choice facilitates crypsis in a tropical crab

, 2016
Animals can evade predators in multiple ways, one of the most effective of which is to avoid detection in the first place. We know much about the evolution of color patterns that match the visual background to avoid detection (i.e., crypsis), yet we know
Aresty, Patricia P., Epple, Lauren, Tullis-Joyce, Phallon, Jeffries, Sterling F., Chen, Kelvin, Audett, Raymond M., Uy, J. Albert C., Ravichandran, Suvetha, Patel, Krisha S., Serein, Gilbert N., Uy, Floria M.K., Uy, Floria M. K., Aresty, Jeffrey   +12 more
core   +1 more source

Chilean Dolphins (Cephalorhynchus eutropia) Produce Both Narrowband High‐Frequency and Broadband Clicks

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Most dolphin species produce broadband biosonar clicks for echolocating prey, and whistles and burst‐pulsed calls for communication purposes. Seven dolphin species were previously reported to only produce clicks of a narrowband high‐frequency (NBHF) type, very similar to the clicks produced by porpoises.
Morgan J. Martin, Margherita Silvestri, Sara Torres Ortiz, Mauricio Soto‐Gamboa, Magnus Wahlberg, Frants H. Jensen   +5 more
wiley   +1 more source