Results 311 to 320 of about 262,426 (361)
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Chemical ecology of predator–prey interactions in aquatic ecosystems: a review and prospectusThe present review is one in the special series of reviews on animal–plant interactions.

, 2010
The interaction between predator and prey is an evolutionary arms race, for which early detection by either party is often the key to success. In aquatic ecosystems, olfaction is an essential source of information for many prey and predators and a number
M. C. Ferrari, B. Wisenden, D. Chivers
semanticscholar   +1 more source

Diversification and Predation

The Journal of Industrial Economics, 1988
ONE common assumption in the post-McGee [1958] predatory pricing literature has been that the predatory firm must be larger (have 'deeper pockets'), than the victim of the predation, usually an entrant. This assumption stems from a model of predation in which the contesting firms sell at levels below cost until one of the firms exits after exhausting ...
Hilke, John C, Nelson, Philip B
openaire   +2 more sources

Monkey responses to three different alarm calls: evidence of predator classification and semantic communication.

Science, 1980
Vervet monkeys give different alarm calls to different predators. Recordings of the alarms played back when predators were absent caused the monkeys to run into trees for leopard alarms, look up for eagle alarms, and look down for snake alarms.
R. Seyfarth, D. Cheney, P. Marler
semanticscholar   +1 more source

Predation in Space

Spatial Economic Analysis, 2012
Abstract In a spatial economic context, we analyse the incentive to prey of an incumbent facing the potential entrance by a rival. We show that the existence of space modifies the incentive to prey of the incumbent and the resulting equilibrium.
openaire   +3 more sources

PREDATOR

2016
Sorta ozimog ječma priznata od strane Ministarstva poljoprivrede Republike Hrvatske 2016. godine. Sorta je namjenjena potrebama stočarstva te industrije piva i slada. Priznata je na temelju ispitivanjima kod sortne komisije Republike Hrvatske obavljenog tijekom 2015.-2016..
Abičić, Ivan, Lalić, Alojzije
openaire   +1 more source

A predator's perspective of nest predation: predation by red squirrels is learned, not incidental

Oikos, 2009
Nest predation has been used to explain aspects of avian ecology ranging from nest site selection to population declines. Many arguments rely on specific assumptions regarding how predators find nests, yet these predatory mechanisms remain largely untested.
James N. M. Smith   +2 more
openaire   +2 more sources

Chapter 11 Predators and predation

2001
Publisher Summary Most field predation studies on hard clams, Mercenaria mercenaria , focuses on elucidating information for aquaculture activities and involves manipulative experiments with some form of protection. The control conditions for these studies are used to examine some ecological relationships, but the plots are seeded at relatively high
openaire   +2 more sources

Chemical alarm signalling in aquatic predator-prey systems: A review and prospectus

, 1998
The importance of chemical cues in predator-prey interactions has recently received increasing attention from ecologists. The sources of chemicals to which prey species respond often originate as cues released by the predator (reviewed by Kats and Dill ...
D. Chivers, R. J. Smith
semanticscholar   +1 more source

Analysis of a predator–prey system with predator switching

Bulletin of Mathematical Biology, 2004
In this paper, we consider an interaction of prey and predator species where prey species have the ability of group defence. Thresholds, equilibria and stabilities are determined for the system of ordinary differential equations. Taking carrying capacity as a bifurcation parameter, it is shown that a Hopf bifurcation can occur implying that if the ...
Graeme C. Wake   +2 more
openaire   +3 more sources

Living and dying in a multi‐predator landscape of fear: roe deer are squeezed by contrasting pattern of predation risk imposed by lynx and humans

, 2014
The theory of predation risk effects predicts behavioral responses in prey when risk of predation is not homogenous in space and time. Prey species are often faced with a tradeoff between food and safety in situations where food availability and ...
K. Lone   +6 more
semanticscholar   +1 more source

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