Results 321 to 330 of about 168,414 (382)

Temporal Variation in Danger Drives Antipredator Behavior: The Predation Risk Allocation Hypothesis

American Naturalist, 1999
The rapid response of animals to changes in predation risk has allowed behavioral ecologists to learn much about antipredator decision making. A largely unappreciated aspect of such decision making, however, is that it may be fundamentally driven by the ...
S. L. Lima, P. Bednekoff
semanticscholar   +1 more source

A review of the sentinel prey method as a way of quantifying invertebrate predation under field conditions

Insect Science, 2017
Sentinel prey can provide a direct, quantitative measure of predation under field conditions. Live sentinel prey provides more realistic data but rarely allows the partitioning of the total predation pressure; artificial prey is less natural but traces ...
G. Lövei, M. Ferrante
semanticscholar   +1 more source

Prey, predator and super-predator model with disease in the super-predator

Applied Mathematics and Computation, 2017
Abstract The dynamics of a predator–prey model with disease in super-predator are investigated. The predator is under immense competition from the super-predator and is also facing extinction. The disease is considered as biological control to allow the predator population to regain from a low number.
John W. Gonsalves, W. Mbava, Joseph Y.T. Mugisha, Joseph Y.T. Mugisha   +3 more
openaire   +2 more sources

The scent of death: Chemosensory assessment of predation risk by prey animals

, 1998
It is well documented that animals take risk of predation into account when making decisions about how to behave in particular situations, often trading-off risk against opportunities for mating or acquiring energy.
L. Kats, L. Dill
semanticscholar   +1 more source

Intraguild predation reduces redundancy of predator species in multiple predator assemblage

Journal of Animal Ecology, 2006
Summary Interference between predator species frequently decreases predation rates, lowering the risk of predation for shared prey. However, such interference can also occur between conspecific predators. Therefore, to understand the importance of predator biodiversity and the degree that predator species can be considered functionally interchangeable,
James E. Byers, Blaine D. Griffen
openaire   +3 more sources

SAVINGS AND PREDATION

Journal of the European Economic Association, 2010
We contrast the relationship between predation and the savings of its potential victim in two different simple models. In the first model, predation is an exogenous event in which savings are expropriated with some fixed probability. In such a setting, the higher the probability of expropriation the lower are savings.
Sylvain Chassang, Gerard Padró i Miquel
openaire   +2 more sources

Resurrecting complexity: the interplay of plasticity and rapid evolution in the multiple trait response to strong changes in predation pressure in the water flea Daphnia magna.

Ecology Letters, 2016
A resurrection ecology reconstruction of 14 morphological, life history and behavioural traits revealed that a natural Daphnia magna population rapidly tracked changes in fish predation by integrating phenotypic plasticity and widespread evolutionary ...
R. Stoks, Lynn Govaert, Kevin Pauwels, Bastiaan Jansen, L. De Meester   +4 more
semanticscholar   +1 more source

Predation and Predator Management *

2019
Predation has shaped many facets of the ecology of plovers, including their life history traits, behaviors, and demography. Moreover, conservation often emphasizes managing predators to increase population size. I reviewed literature addressing impacts of predation on survivorship and reproductive success of plovers, as well as four management ...
openaire   +2 more sources

Seed Predation by Animals

, 1971
Many plants suffer very heavy preand/or post-dispersal seed predation by animals. A few exemplary studies (2,18,38,52,74,87, 106, 110, 111, 124, 140, 161, 162, 171, 181, 187, 196, 197, 203, 205, 207, 217, 220, 227) and a variety of shorter reports ...
D. Janzen
semanticscholar   +1 more source

Community Regulation: Variation in Disturbance, Competition, and Predation in Relation to Environmental Stress and Recruitment

American Naturalist, 1987
We present a model of community regulation that incorporates the effects of abiotic disturbance, predation, competition, and recruitment density. We assume that mobile organisms (i.e., consumers) are more strongly affected by environmental stress than ...
B. Menge, J. Sutherland
semanticscholar   +1 more source