@article {940,
	title = {Defining and measuring the impact of dynamic traits on interspecific interactions},
	journal = {Ecology},
	volume = {88},
	year = {2007},
	note = {J
OCT},
	month = {2007///},
	pages = {2555 - 2562},
	abstract = {Trait- and density-mediated indirect effects describe different pathways by which indirect interactions in food webs are propagated from one species to another, through changes in intermediate species. A series of articles in Ecology has progressively altered the original definitions of "trait-mediated{\textquoteright}{\textquoteright} to the point where understanding is being impeded. The most recent of these articles are two meta-analyses that use "trait-mediated{\textquoteright}{\textquoteright} to describe the demographic costs to a prey species of employing anti-predator defenses. These same articles introduce a companion term, "density-mediated interaction,{\textquoteright}{\textquoteright} apparently to describe direct and indirect interactions that only involve changes in population density due to consumption by predators. This new terminology has many disadvantages, including ( 1) using a general term for a relatively narrow group of processes; ( 2) using "mediated{\textquoteright}{\textquoteright} in a manner inconsistent with existing terminology; ( 3) confusing the accepted definitions of different types of indirect effects; and ( 4) providing a highly incomplete measure of the impact of behavior on the predator - prey interaction. Solutions to these problems and the meaning of the meta-analyses are discussed},
	keywords = {defense, ecology, food webs, indirect effects, indirect interactions, interactions, INTERSPECIFIC INTERACTIONS, PREDATOR, predators, PREY},
	isbn = {0012-9658},
	url = {ISI:000250714200016},
	author = {Abrams,P.A.}
}
