منابع مشابه
Predation on Posidonia australis seeds in seagrass habitats of Rottnest Island, Western Australia: patterns and predators
Seed predation is an important process governing the dynamics of many plant populations. We assessed seed mortality due to predation in the seagrass Posidonia australis by identifying predators and quantifying predation events using underwater video cameras, laboratory and field observations, and field tethering experiments in shallow-water habitats off Rottnest Island, Western Australia in 200...
متن کاملSeasonal, spatial and diel partitioning of Acyrthosiphon pisum (Hemiptera: Aphididae) predators and predation in alfalfa fields
Spring Autumn Summer FOLIAGE DAY FOLIAGE NIGHT GROUND NIGHT GROUND -DAY ALFALFA a r t i c l e i n f o
متن کاملPredators and the breeding bird: behavioral and reproductive flexibility under the risk of predation.
A growing body of work suggests that breeding birds have a significant capacity to assess and respond, over ecological time, to changes in the risk of predation to both themselves and their eggs or nestlings. This review investigates the nature of this flexibility in the face of predation from both behavioural and reproductive perspectives, and also explores several directions for future resear...
متن کاملPredation and cathemerality. Comparing the impact of predators on the activity patterns of lemurids and ceboids.
The removal, or absence, of predatory species could be a contributing proximate factor to the rise of primate cathemerality. But predators themselves can also be cathemeral, so cathemerality could well be an evolutionary stable strategy. From a comparative perspective, it appears that the effect of predatory species cannot provide a unitary explanation for cathemerality. Varying distributions a...
متن کاملPredators, parasitoids, and pathogens: a cross-cutting examination of intraguild predation theory.
Although the canonical concept of intraguild predation evokes images of predators and prey, several subdisciplines within ecology have developed theory not specifically framed in terms of predation and competition and often using system-specific terminology, yet functionally quite similar. Here, we formulate models combining exploitation and competition in predator-prey, host-parasitoid, and ho...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2008
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0808033105