.png){kind=icon}
返回
Spatial memory shapes density dependence in population dynamics
.png){kind=icon}
OA
AI
DOI：10.1098/rspb.2017.1411.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Most population dynamics studies assume that individuals use space uniformly, and thus mix well spatially. In numerous species, however, individuals do not move randomly, but use spatial memory to visit renewable resource patches repeatedly. To understand the extent to which memory-based foraging movement may affect density-dependent population dynamics through its impact on competition, we developed a spatially explicit, individual-based movement model where reproduction and death are functions of foraging efficiency. We compared the dynamics of populations of with-and without-memory individuals. We showed that memory-based movement leads to a higher population size at equilibrium, to a higher depletion of the environment, to a marked discrepancy between the global (i.e. measured at the population level) and local (i.e. measured at the individual level) intensities of competition, and to a nonlinear density dependence. These results call for a deeper investigation of the impact of individual movement strategies and cognitive abilities on population dynamics.
Keyword:
memory
movement
population dynamics
foraging
space use
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
P
IF:
3.5
论文数:
1.5W
被引数:
5.7W
机构
引用论文
Offline NFC payments with electronic vouchers.png)
Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handheldsOAAI
Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handheldsIF0
OAAI分享收藏Functional responses in habitat selection are density dependent in a large herbivoreECOGRAPHY
ECOGRAPHYIF4.7
PREAI
分享收藏Demographic determination of the shape of density dependence for three African ungulate populations
PREAI
分享收藏The ecogenetic link between demography and evolution:: can we bridge the gap between theory and data?Ecology LettersOAAI
Ecology LettersIF7.9
OAAI分享收藏分享收藏
查看更多内容