Now showing items 1-10 of 4251
Community-wide responses to predation risk: Effects of predator hunting mode on herbivores, pollinators, and parasitoids
1. Flower visitation by herbivores and pollinators often occurs simultaneously, but their potential contrasting responses to predation risk are rarely investigated in concert. Predator avoidance behaviour is common in ...
Anurans as prey: an exploratory analysis and size relationships between predators and their prey
(Blackwell Publishing, 2007-02-01)
The vertebrate predators of post-metamorphic anurans were quantified and the predator-prey relationship was investigated by analysing the relative size of invertebrate predators and anurans. More than 100 vertebrate predators ...
Black sea urchins evaluate predation risk using chemical signals from a predator and injured con- and heterospecific prey
The traits related to foraging and eating are crucial to our understanding of food webs. The use of signals to detect predators has strong relevance for prey survival. The black sea urchin Echinometra lucunter cohabits ...
Lack of response of an open-habitat ungulate to the presence of predator urine
(Sociedad de Biología de Chile, 2008)
The effect of refuge on Dermestes ater (Coleoptera : Dermestidae) predation on Musca domestica (Diptera : Muscidae): Refuge for prey or the predator?
It is believed that habitat heterogeneity can change the extent of predator-prey interactions. Therefore, in this study we examined the effect of habitat heterogeneity (characterized here as an addition of refuge) on D. ...
Can fiddler crabs detect underwater predators? A laboratory test with Leptuca thayeri
Fiddler crabs are intertidal organisms well known to be highly adapted to low tide activity, thus a number of researches have studied their physiological, behavioral and sensory adaptations to such a tidal phase. However, ...
Foliar and ground-foraging predators of aphids associated with alfalfa crops in Chile: Are they good or bad partners?
Carabids and coccinellids are the most abundant aphid predators in alfalfa. Depending on the amount of prey consumed, the impact of their combined effect can be additive, antagonistic, or synergistic. Laboratory trials ...
Predation and spatial distribution of the lizard Podarcis hispanica atrata: An experimental approach
(Elsevier B.V., 1998)
This study reports on an experiment designed to quantify potential predation by birds on the lizard Podarcis hispanica atrata in the Columbretes islands (Castellon, Spain). We used plasticine replicas to examine predation ...
Effects of the seed predator Acanthoscelides schrankiae on viability of its host plant Mimosa bimucronata
(Sociedad de Biología de Chile, 2007)