Results 21 to 30 of about 4,478,531 (313)

Inducible chemical defences in animals [PDF]

open access: yesOikos, 2014
Phenotypic plasticity is extremely widespread in the behaviour, morphology and life‐history of animals. However, inducible changes in the production of defensive chemicals are described mostly in plants and surprisingly little is known about similar plasticity in chemical defences of animals. Inducible chemical defences may be common in animals because
A. Hettyey, Z. Tóth, J. Buskirk
semanticscholar   +4 more sources

Small prey fight back: post-capture defences shape prey–predator size relationships [PDF]

open access: yesScientific Reports
Size relationships between prey and predators are a key topic in ecology. A positive correlation often exists between the sizes of prey and predators. Although predators can consume much smaller prey, some preferentially target larger prey and avoid very
Shinji Sugiura
doaj   +2 more sources

Deterrent activities in the crude lipophilic fractions of Antarctic benthic organisms: chemical defences against keystone predators [PDF]

open access: yesPolar Research, 2014
Generalist predation constitutes a driving force for the evolution of chemical defences. In the Antarctic benthos, asteroids and omnivore amphipods are keystone opportunistic predators.
Laura Núñez-Pons, Conxita Avila
doaj   +2 more sources

Acorn‐Weevil Interactions in Semi‐Humid Evergreen Broad‐Leaved Forests in Yunnan, China: Trade‐Offs Among Acorn Functional Traits [PDF]

open access: yesEcology and Evolution
Acorns are crucial for the regeneration and stability of oak forest communities, yet they often suffer significant predation by weevils before dispersal.
Shengquan Fang   +8 more
doaj   +2 more sources

Leaf Colour as a Signal of Chemical Defence to Insect Herbivores in Wild Cabbage (Brassica oleracea). [PDF]

open access: yesPLoS ONE, 2015
Leaf colour has been proposed to signal levels of host defence to insect herbivores, but we lack data on herbivory, leaf colour and levels of defence for wild host populations necessary to test this hypothesis.
Jonathan P Green   +4 more
doaj   +4 more sources

Seaweed Invasions and Novel Chemical Defences [PDF]

open access: yes, 2012
Biological invasions pose a risk to the biodiversity and the functioning of ecosystems in invaded areas. The reasons why some introduced species become dominant and widespread in their new environments is still largely an unsettled question.
Enge, Swantje
core   +3 more sources

Chemical antipredator defence is linked to higher extinction risk [PDF]

open access: yesRoyal Society Open Science, 2016
Many attributes of species may be linked to contemporary extinction risk, though some such traits remain untested despite suggestions that they may be important.
Kevin Arbuckle
doaj   +5 more sources

Anti-predatory chemical defences in Antarctic benthic fauna

open access: yesMarine Biology, 2015
Antarctic benthic communities are largely structured by predation, which leads to the development of mechanisms of repellence. Among those mechanisms, chemical defences are quite extensive, yet poorly understood.
J. Moles   +5 more
semanticscholar   +4 more sources

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