Results 111 to 120 of about 2,877 (210)

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

Colour preferences of UK garden birds at supplementary seed feeders [PDF]

, 2017
Supplementary feeding of garden birds generally has benefits for both bird populations and human wellbeing. Birds have excellent colour vision, and show preferences for food items of particular colours, but research into colour preferences associated ...
Morrell, Lesley J., Rothery, Luke, Scott, Graham W.   +2 more
core   +3 more sources

Colors and Some Morphological Traits as Defensive Mechanisms in Anurans

International Journal of Zoology, 2009
Anurans may be brightly colored or completely cryptic. Generally, in the former situation, we are dealing with aposematism, and the latter is an example of camouflage.
Luís Felipe Toledo, Célio F. B. Haddad
doaj   +1 more source

The butterfly rash of lupus: An example of aposematism? [PDF]

Arthritis Research & Therapy, 2013
Even the most seasoned and savvy clinician views lupus warily, considering it one of the most bewildering diseases in all of medicine. This situation should not be a surprise since the manifestations of lupus are dizzying in their variety and exasperating in their subtlety.
openaire   +2 more sources

Beware glowing cadavers: bioluminescence of nematode symbiont Photorhabdus protects nematode-infected host cadavers from nocturnal scavengers

Frontiers in Ecology and Evolution
Photorhabdus spp. are the only known terrestrial bioluminescent bacteria. We show that the bioluminescence produced by these bacteria reduces scavenging activity on the insect cadavers they colonize. Photorhabdus spp.
Maria D. Cassells, Sophie Labaude, Christine T. Griffin   +2 more
doaj   +1 more source

Phenotypic and molecular variation in the green and black poison-dart frog Dendrobates auratus (Anura: Dendrobatidae) from Costa Rica

Revista de Biología Tropical, 2009
The green and black poison-dart frog Dendrobates auratus exhibits high intraspecific variation in hue color and pattern throughout its range, making it a very popular species in the pet trade.
Lisa D Patrick, Mahmood Sasa
doaj   +2 more sources

Pigment composition of the bright skin in the poison toad, Melanophryniscus rubriventris (Anura: Bufonidae) from Argentina [PDF]

, 2017
The determination of the basis of skin colour is important to better understand the evolutionary and ecological relevance of colour variation in aposematic species.
Bonansea, Maria Ines, Heit, Cecilia, Vaira, Marcos   +2 more
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Aposematism and bioluminescence

Animal Behaviour, 1989
Guilford, TC, Cuthill, IC
openaire   +2 more sources

Function of Vivid Coloration of Terrestrial Isopods from the Point of View of an Avian Predator

Insects
The ability of terrestrial isopods (Crustacea: Isopoda: Oniscidea) to protect themselves effectively from predation by birds has never been tested. They are equipped with glands producing chemical substances; moreover, some species show conspicuous ...
Barbora Ďurajková, Petr Veselý, Ivan Hadrián Tuf   +2 more
doaj   +1 more source

Mating Behavior and Male Territoriality in Enallagma vesperum (Odonata: Coenagrionidae) on Ponds in Ohio and Northern Michigan [PDF]

, 2009
Author Institution: Biology Department, The University of FindlayThe crepuscular damselfly Enallagma vesperum Calvert, was studied to document and clarify mating behavior. This paper is a descriptive synthesis of observations which answer basic questions
Moody, Dwight L.
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