全球智库信息集成服务系统(G2TT): Evolution of specialization and ecological character displacement of herbivores along a gradient of plant quality.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1111/j.0014-3820.2005.tb01011.x
	Evolution of specialization and ecological character displacement of herbivores along a gradient of plant quality.
	Egas M; Sabelis MW; Dieckmann U
发表日期	2005
出处	Evolution 59 (3): 507-520
出版年	2005
语种	英语
摘要	We study the combined evolutionary dynamics of herbivore specialization and ecological character displacement, taking into account foraging behavior of the herbivores, and a quality gradient of plant types. Herbivores can adapt by changing two adaptive traits: their level of specialization in feeding efficiency and their point of maximum feeding efficiency along the plant gradient. The number of herbivore phenotypes, their levels of specialization, and the amount of character displacement among them are the result of the evolutionary dynamics, which is driven by the underlying population dynamics, which in turn is driven by the underlying foraging behavior. Our analysis demonstrates broad conditions for the diversification of a herbivore population into many specialized phenotypes, for basically any foraging behavior focusing utilization on highest gains while also including errors. Our model predicts two characteristic phases in the adaptation of herbivore phenotypes: a fast character displacement phase, and a slow coevolutionary niche shift phase. This two-phase pattern is expected to be of wide relevance in various consumer-resource systems. Bringing together ecological character displacement and the evolution of specialization in a single model, our study suggests suggests that the foraging behavior of herbivorous arthropods is a key factor promoting specialist raiation.
主题	Adaptive Dynamics Network (ADN)
关键词	Adaptive dynamics Adaptive radiation Coevolutionary miche shift Ecological character displacement Foraging behavior Herbivorous arthropods Resource gradient
URL	http://pure.iiasa.ac.at/id/eprint/7500/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/128459
推荐引用方式 GB/T 7714	Egas M,Sabelis MW,Dieckmann U. Evolution of specialization and ecological character displacement of herbivores along a gradient of plant quality.. 2005.