|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
03/12/1998 |
|
Data da última atualização: |
01/04/2019 |
|
Autoria: |
WALKER, B. |
|
Afiliação: |
BRIAN WALKER, CSIRO. |
|
Título: |
Conserving biological diversity through ecosystem resilience. |
|
Ano de publicação: |
1995 |
|
Fonte/Imprenta: |
Conservation Biology, v. 9, n. 4, p. 747-752, Aug. 1995. |
|
DOI: |
https://doi.org/10.1046/j.1523-1739.1995.09040747.x |
|
Idioma: |
Inglês |
|
Conteúdo: |
Confusion over the term ecological redundancy (Walker 1992) requires that the concept be clarified in order to advance the developing theory that maintaining ecosystem function conserves biological diversity. The species approach to conserving biological diversity assumes that the species in trouble are already identified. The ecosystem approach attempts to deal with the problem of conserving all the species in an ecosystem, including those not yet known. This is best achieved by ensuring that the ecosystem continues to function approximately as it has by maintaining its essential structure. Ecosystem stability (the probability of all species persisting) is enhanced if each important functional group of organisms (important for maintaining function and structure) comprises several ecologically equivalent species, each with different responses to environmental factors. In this sense ecological redundancy is good because it enhances ecosystem resilience, but functionally important groups (guilds, functional types) that have only one or very few species deserve priority conservation attention because their functions could be quickly lost with species extinctions. |
|
Palavras-Chave: |
Diversidade biológica. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01651naa a2200145 a 4500
001 1006844
005 2019-04-01
008 1995 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1046/j.1523-1739.1995.09040747.x$2DOI
100 1 $aWALKER, B.
245 $aConserving biological diversity through ecosystem resilience.$h[electronic resource]
260 $c1995
520 $aConfusion over the term ecological redundancy (Walker 1992) requires that the concept be clarified in order to advance the developing theory that maintaining ecosystem function conserves biological diversity. The species approach to conserving biological diversity assumes that the species in trouble are already identified. The ecosystem approach attempts to deal with the problem of conserving all the species in an ecosystem, including those not yet known. This is best achieved by ensuring that the ecosystem continues to function approximately as it has by maintaining its essential structure. Ecosystem stability (the probability of all species persisting) is enhanced if each important functional group of organisms (important for maintaining function and structure) comprises several ecologically equivalent species, each with different responses to environmental factors. In this sense ecological redundancy is good because it enhances ecosystem resilience, but functionally important groups (guilds, functional types) that have only one or very few species deserve priority conservation attention because their functions could be quickly lost with species extinctions.
653 $aDiversidade biológica
773 $tConservation Biology$gv. 9, n. 4, p. 747-752, Aug. 1995.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
