NUÑEZ martin Andres
capítulos de libros
NUÑEZ, M. A Y DIMARCO DR
The Encyclopedia of Sustainability
Año: 2012; p. 226 - 230
Keystone species are those species whose importance to an ecosystems structure, composition, and function is disproportionately large relative to their abundance. These species can be of any life form, but they have in common an eﬀ ect on their environment that is always greater than what can be expected based on their biomass . Well-studied examples include sea stars, beavers, bears, corals, elephants, and hummingbirds.