Journal ArticleDOI
Predator hunting mode and habitat domain alter nonconsumptive effects in predator-prey interactions.
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TLDR
It is found that cues from sit-and-pursue predators evoked stronger NCEs than cues from actively hunting predators, and predator characteristics may be used to predict how changing predator communities translate into changes in prey.Abstract:
Predators can affect prey populations through changes in traits that reduce predation risk These trait changes (nonconsumptive effects, NCEs) can be energetically costly and cause reduced prey activity, growth, fecundity, and survival The strength of nonconsumptive effects may vary with two functional characteristics of predators: hunting mode (actively hunting, sit-and-pursue, sit-and-wait) and habitat domain (the ability to pursue prey via relocation in space; can be narrow or broad) Specifically, cues from fairly stationary sit-and-wait and sit-and-pursue predators should be more indicative of imminent predation risk, and thereby evoke stronger NCEs, compared to cues from widely ranging actively hunting predators Using a meta-analysis of 193 published papers, we found that cues from sit-and-pursue predators evoked stronger NCEs than cues from actively hunting predators Predator habitat domain was less indicative of NCE strength, perhaps because habitat domain provides less reliable information regarding imminent risk to prey than does predator hunting mode Given the importance of NCEs in determining the dynamics of prey communities, our findings suggest that predator characteristics may be used to predict how changing predator communities translate into changes in prey Such knowledge may prove particularly useful given rates of local predator change due to habitat fragmentation and the introduction of novel predatorsread more
Citations
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Journal ArticleDOI
Predicting ecological consequences of marine top predator declines
TL;DR: The consequences of marine predator declines are outlined and an integrated predictive framework that includes risk effects is proposed, which appear to be strongest for long-lived prey species and when resources are abundant.
Journal ArticleDOI
Ecological networks--beyond food webs.
Thomas C. Ings,José M. Montoya,José M. Montoya,Jordi Bascompte,Nico Blüthgen,Lee E. Brown,Carsten F. Dormann,Francois Edwards,Francois Edwards,David J. Figueroa,David J. Figueroa,Ute Jacob,J. Iwan Jones,Rasmus B. Lauridsen,Mark E. Ledger,Hannah Lewis,Jens M. Olesen,F. J. Frank van Veen,Phil H. Warren,Guy Woodward +19 more
TL;DR: A number of 'dead ends' and 'fruitful avenues' are suggested for future research into ecological networks by suggesting a new catalogue of evermore complete, taxonomically resolved, and quantitative data.
Journal ArticleDOI
Ecological implications of behavioural syndromes
TL;DR: How insights from the concept and study of behavioural syndromes provide fresh understanding of major issues in population ecology are explored, including limits to species' distribution and abundance and relative responses to human-induced rapid environmental change.
Journal ArticleDOI
Predator-prey naïveté, antipredator behavior, and the ecology of predator invasions
Andrew Sih,Daniel I. Bolnick,Barney Luttbeg,John L. Orrock,Scott D. Peacor,Lauren M. Pintor,Evan L. Preisser,Jennifer S. Rehage,James R. Vonesh +8 more
TL;DR: It is hypothesized that patterns of community similarity and evolution might explain the variation in novelty advantage that can underlie variation in invasion outcomes, including suggestions for managing invasive predators, predator reintroductions and biological control.
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Physiological Stress as a Fundamental Mechanism Linking Predation to Ecosystem Functioning
Dror Hawlena,Oswald J. Schmitz +1 more
TL;DR: A framework to explain how prey stress responses to predation can resolve context dependency in ecosystem properties and functions such as food chain length, secondary production, elemental stoichiometry, and cycling is presented.
References
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The meta-analysis of response ratios in experimental ecology
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Journal ArticleDOI
Scared to death? the effects of intimidation and consumption in predator–prey interactions
TL;DR: The results suggest that the costs of intimidation, traditionally ignored in predator-prey ecology, may actually be the dominant facet of trophic interactions.
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