Enemy escape: A general phenomenon in a fragmented literature?

FACETS

Zoryana Shibel¹  Allyson Heustis²  Chandra E. Moffat³  Sara Edwards⁴  Rob Johns⁴  Julia J. Mlynarek⁵  Anthony L. Einfeldt⁵  Dan T. Quiring⁵  Deepa S. Pureswaran⁵  Stephen B. Heard⁶  Mallory MacDonnell⁷ 

[1] Forest Insect Ecology, Atlantic Forestry Centre, 1350 Regent Street, P.O. Box 4000, Fredericton, NB E3B 5P7, Canada;Present address: Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, Post Office Box 20280, Fredericton, NB E3B 4Z7, Canada;Present address: Harrow Research and Development Centre, Agriculture and Agri-Food Canada, 2585 County Road 20, Harrow, ON N0R 1G0, Canada;These authors contributed equally to this work.;Department of Biology, University of New Brunswick, P.O. Box 4400, Fredericton, NB E3B 5A3, Canada;Forest Insect Ecology, Atlantic Forestry Centre, 1350 Regent Street, P.O. Box 4000, Fredericton, NB E3B 5P7, Canada;Population Ecology Group, Faculty of Forestry & Environmental Management, University of New Brunswick, P.O. Box 4400, Fredericton, NB E3B 5A3, Canada;

关键词: enemy release;    invasions;    range expansions;    enemy-free space;    host shifts;    phenological shifts;    defensive innovations;    predator suppression;    mesopredator release;   

DOI  :  10.1139/facets-2017-0041

来源: DOAJ

【 摘 要 】

Many populations are thought to be regulated, in part, by their natural enemies. If so, disruption of this regulation should allow rapid population growth. Such “enemy escape” may occur in a variety of circumstances, including invasion, natural range expansion, range edges, suppression of enemy populations, host shifting, phenological changes, and defensive innovation. Periods of relaxed enemy pressure also occur in, and may drive, population oscillations and outbreaks. We draw attention to similarities among circumstances of enemy escape and build a general conceptual framework for the phenomenon. Although these circumstances share common mechanisms and depend on common assumptions, enemy escape can involve dynamics operating on very different temporal and spatial scales. In particular, the duration of enemy escape is rarely considered but will likely vary among circumstances. Enemy escape can have important evolutionary consequences including increasing competitive ability, spurring diversification, or triggering enemy counteradaptation. These evolutionary consequences have been considered for plant–herbivore interactions and invasions but largely neglected for other circumstances of enemy escape. We aim to unite the fragmented literature, which we argue has impeded progress in building a broader understanding of the eco-evolutionary dynamics of enemy escape.

【 授权许可】

Unknown