Results 81 to 90 of about 1,469 (196)

EVOLUTIONARY PATHWAYS TO APOSEMATISM

, 1990
The theory of aposematism as an adaptive explanation of conspicuous attributes in unprofitable prey is outlined before the selective conditions favouring aposematism are considered.
GUILFORD, T
core  

Body Size Is Positively Correlated With Conspicuous Coloration in Ambystoma Salamanders, but Negatively Correlated With Conspicuous Coloration in Plethodon Salamanders

Frontiers in Ecology and Evolution, 2018
Conspicuous coloration coupled with secondary defensive mechanisms is known as aposematic coloration and is used in predator avoidance and defense. Classic theory argues that aposematic signals tend to be more effective in larger organisms as they are ...
Monica M. Winebarger, Monica M. Winebarger, M. Worth Pugh, M. Worth Pugh, Michael M. Gangloff, Michael S. Osbourn, Lynn Siefferman   +6 more
doaj   +1 more source

Pigments, Chromatophore Structure, and Gene Expression Underlying Colour Polytypy of a Panamanian Poison Frog

Molecular Ecology, Volume 35, Issue 1, January 2026.
ABSTRACT Colour polytypism represents an example of phenotypic diversification shaped by genetic divergence and ecological pressures. Poison frogs of the genus Oophaga (Dendrobatidae) are highly polytypic in coloration, making them an ideal system for investigating the genetic and physiological basis of colour variation.
Vasiliki Mantzana‐Oikonomaki, Giselle Tamayo‐Castillo, Víctor Vásquez‐Cháves, Abel Mora‐Machado, William J. Zamora Ramirez, Roberto Ibáñez, Heike Pröhl, Ariel Rodríguez   +7 more
wiley   +1 more source

A computational neuroscience framework for quantifying warning signals

Methods in Ecology and Evolution
Animal warning signals show remarkable diversity, yet subjectively appear to share certain visual features that make defended prey stand out and look different from more cryptic palatable species.
O. Penacchio, C. G. Halpin, I. C. Cuthill, P. G. Lovell, M. Wheelwright, J. Skelhorn, C. Rowe, J. M. Harris   +7 more
doaj   +1 more source

Systematic Review of the Ethiopian Apparel Industry’s Historical Development and Current Insights

Journal of Engineering, Volume 2026, Issue 1, 2026.
This review systematically maps the literature on the transformation of the Ethiopian garment industry over 30 years (from 1995 to 2025). The main objective is to plot and evaluate how academic research has described the transition of the sector, previously a craft‐based heritage cottage industry where, for instance, traditional attire such as the ...
Amare Abuhay, Abrham Destaw, Baye B. Yilma, Solomon Tsegaye, Biniyam Solomon, Shiferaw Asmmamaw, Abebu Abebaw, Esubalew Dessie, Erkihun Zelalem Liyew, Abera Kechi, Kelemiwork Adimasu, Hao Yi   +11 more
wiley   +1 more source

Ontogenetic colour change and the evolution of aposematism: A case study in panic moth caterpillars

, 2007
Aposematism is a widely used antipredator strategy in which an organism possesses both warning coloration and unprofitable characters. Theoretical evidence suggests that aposematic colour should develop when high opportunity costs imposed by crypsis ...
Grant, Jacqualine B., JACQUALINE B. GRANT   +1 more
core   +1 more source

Warning signals and predator-prey coevolution

, 2004
Theories of the evolution of warning signals are typically expressed using analytic and computational models, most of which attribute aspects of predator psychology as the key factors facilitating the evolution of warning signals.
J. Noble, Daniel Franks (5353859), Noble, Jason, D. W. Franks, Noble, J., Franks, Daniel W., Jason Noble (5665444), Franks, D.W.   +7 more
core   +1 more source

Educating the enemy: Harnessing learned avoidance behavior in wild predators to increase survival of reintroduced southern corroboree frogs

Conservation Science and Practice, 2020
After decades of near‐complete extirpation, the yellow‐and‐black‐striped Southern Corroboree Frog (Pseudophryne corroboree) is being reintroduced into field enclosures that exclude all but avian predators.
Kate D. L. Umbers, Julia L. Riley, Michael B. J. Kelly, Griffin Taylor‐Dalton, Justin P. Lawrence, Phillip G. Byrne   +5 more
doaj   +1 more source

Aposematism in the burying beetle? Dual function of anal fluid in parental care and chemical defense [PDF]

, 2017
Versatility of anal fluid in burying beetles? Burying beetles use the same anal fluid to fumigate their carrion nest and to deter predators. The orange-black markings on beetle’s elytra are conspicuous for birds and could function as a warning signal of ...
Cotter, Sheena, Giuseppe Boncoraglio, Sheena Cotter, Boncoraglio, Giuseppe, Rebecca M Kilner, Gilbert, James, Lindstedt, Carita, Kilner, Rebecca M., James Gilbert, Kilner, Rebecca M, Carita Lindstedt   +10 more
core   +1 more source

Density–dependent aposematism in the desert locust

Proceedings of the Royal Society of London. Series B: Biological Sciences, 2000
The ecological processes underlying locust swarm formation are poorly understood. Locust species exhibit phenotypic plasticity in numerous morphological, physiological and behavioural traits as their population density increases. These density-dependent changes are commonly assumed to be adaptations for migration under heterogeneous environmental ...
G A, Sword, S J, Simpson, O T, El Hadi, H, Wilps   +3 more
openaire   +3 more sources