Idioma:

Global patterns and predictors of bird species responses to forest fragmentation: Implications for ecosystem function and conservation

Bregman, Tom P. ; Sekercioglu, Cagan H. ; Tobias, Joseph A.

Biological conservation, 2014-01, Vol.169, p.372-383 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

Texto completo disponível

Citações Citado por

Enviar para

Título:
Global patterns and predictors of bird species responses to forest fragmentation: Implications for ecosystem function and conservation
Autor: Bregman, Tom P. ; Sekercioglu, Cagan H. ; Tobias, Joseph A.
Assuntos: Animal, plant and microbial ecology ; Applied ecology ; Aves ; Biodiversity conservation ; Biological and medical sciences ; Collapse ; Conservation ; Conservation, protection and management of environment and wildlife ; Ecological effects ; Ecological guilds ; Ecology ; Ecosystems ; Forest management ; Forestry ; Fragmentation ; Functional groups ; Fundamental and applied biological sciences. Psychology ; General aspects ; General forest ecology ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; Habitat fragmentation ; Human-modified landscapes ; Land-use change ; Management practice ; Mathematical models ; Parks, reserves, wildlife conservation. Endangered species: population survey and restocking ; Resilience ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
É parte de: Biological conservation, 2014-01, Vol.169, p.372-383
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: •Impacts of forest fragmentation on birds are mediated by latitude and vary across functional groups.•Fragmentation alters the trophic structure of tropical, but not temperate, bird communities.•Changes to trophic structure, largely driven by the loss of insectivores and large frugivores, occur<1000ha and become severe<100ha.•Reduced diversity of key functional components is likely to impair ecosystem processes in small tropical fragments.•Management interventions are required to maintain fragment size and connectivity in tropical systems. The fragmentation of forests is a dominant human impact worldwide with major implications for the conservation and management of ecosystems. Although many studies have assessed the effects of fragmentation on biodiversity at local scales, our understanding of the ecological implications for different functional groups of organisms remains limited, particularly at global scales. Here, we use linear mixed models to explore patterns of occurrence and ecological function of 2844 bird species at 293 localities spanning five continents. We show that sensitivity to fragmentation varies according to functional group and body mass, with the prevalence of insectivores and large frugivores declining in relation to fragment size, particularly under 100ha. However, the most severe effects were restricted to the tropics, whereas fragmentation had no significant impact on the basic ecological structure of temperate bird communities. We conclude that land-use change in tropical systems is likely to disrupt biotic processes, including seed dispersal and the control of insect herbivores. Our findings highlight the importance of latitude in mediating the impacts of habitat loss, and offer general guidelines for the minimum size of fragments required to prevent the collapse of key ecosystem processes in sensitive regions.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Anterior Resultado 5 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Global patterns and predictors of bird species responses to forest fragmentation: Implications for ecosystem function and conservation

Bregman, Tom P. ; Sekercioglu, Cagan H. ; Tobias, Joseph A.

Kidlington: Elsevier Ltd

Buscando em bases de dados remotas. Favor aguardar.