DOI: 10.1016/j.foreco.2017.06.053
Scopus记录号: 2-s2.0-85021995719
论文题名: Design matters: An evaluation of the impact of small man-made forest clearings on tropical bats using a before-after-control-impact design
作者: Rocha R. ; Ovaskainen O. ; López-Baucells A. ; Farneda F.Z. ; Ferreira D.F. ; Bobrowiec P.E.D. ; Cabeza M. ; Palmeirim J.M. ; Meyer C.F.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 401 起始页码: 8
结束页码: 16
语种: 英语
英文关键词: Amazon
; BACI
; Bayesian inference
; Fragmentation
; Hierarchical modeling
; Joint species distribution modeling
Scopus关键词: Bayesian networks
; Deforestation
; Ecosystems
; Forestry
; Inference engines
; Amazon
; BACI
; Bayesian inference
; Fragmentation
; Hierarchical model
; Species distribution modeling
; Population distribution
; Vertebrata
英文摘要: In recent years, large clearings (>1000 ha) accounted for gradually smaller amounts of total annual deforestation in the Brazilian Amazon, whereas the proportion of small clearings (<50 ha) nowadays represents more than 80% of annual deforestation. Despite the ubiquity of small clearings in fragmented Amazonian landscapes, most fragmentation research has focused on the effects of large-scale deforestation, leading to a poor understanding of the impacts of smaller barriers on Amazonian vertebrates. We capitalized on the periodical re-isolation of experimental forest fragments at the Biological Dynamics of Forest Fragments Project in the Central Amazon as a before-after-control-impact experiment to investigate the short-term effects of small clearings on bat assemblages. Over the course of three years we sampled six control sites in continuous forest, the interiors and edges of eight forest fragments as well as eight sites in the surrounding matrix. Sampling took place both before and after the experimental manipulation (clearing of a 100 m wide strip of regrowth around each fragment), resulting in ∼4000 bat captures. Species were classified as old-growth specialists and habitat generalists according to their habitat affinities and a joint species distribution modeling framework was used to investigate the effect of fragment re-isolation on species occupancy. Following fragment re-isolation, species richness declined in all habitats other than fragment edges and, although responses were idiosyncratic, this decline was more pronounced for forest specialist than for generalist species. Additionally, fragment re-isolation led to a reduction in the similarity between assemblages in modified habitats (fragment interiors, edges and matrix) and continuous forest. Sampling of controls in continuous forest both prior to and after re-isolation revealed that much of the variation in bat species occupancy between sampling periods did not arise from fragment re-isolation but rather reflected natural spatiotemporal variability. This emphasizes the need to sample experimental controls both before and after experimental manipulation and suggests caution in the interpretation of results from studies in which the effects of habitat transformations are assessed based solely on data collected using space-for-time substitution approaches. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64172
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre for Ecology, Evolution and Environmental Changes – cE3c, Faculty of Sciences, University of Lisbon, Lisbon, Portugal; Biological Dynamics of Forest Fragments Project, National Institute for Amazonian Research and Smithsonian Tropical Research Institute, Manaus, Brazil; Metapopulation Research Centre, Faculty of Biosciences, University of Helsinki, Helsinki, Finland; Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway; Museum of Natural Sciences of Granollers, Granollers, Catalonia, Spain; Department of Ecology/PPGE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Ecosystems and Environment Research Centre (EERC), School of Environment and Life Sciences, University of Salford, Salford, United Kingdom
Recommended Citation:
Rocha R.,Ovaskainen O.,López-Baucells A.,et al. Design matters: An evaluation of the impact of small man-made forest clearings on tropical bats using a before-after-control-impact design[J]. Forest Ecology and Management,2017-01-01,401