DOI: 10.1016/j.foreco.2015.06.032
Scopus记录号: 2-s2.0-84945479793
论文题名: Topography and aridity influence oak woodland bird assemblages in southern Europe
作者: Correia R.A. ; Haskell W.C. ; Gill J.A. ; Palmeirim J.M. ; Franco A.M.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 354 起始页码: 97
结束页码: 103
语种: 英语
英文关键词: Climate change
; Climate refugia
; Cork oak
; Mediterranean Basin
; Quercus suber
; Resource availability
; Woodland management
Scopus关键词: Biodiversity
; Birds
; Drought
; Ecology
; Forestry
; Climate refugia
; Cork oak
; Mediterranean basin
; Quercus
; Resource availability
; Climate change
; abundance
; aridity
; biodiversity
; biomass
; bird
; climate change
; dicotyledon
; drought
; microclimate
; refugium
; resource availability
; species richness
; topography
; trophic level
; woodland
; Europe
; Mediterranean Sea
; Aves
; Quercus suber
英文摘要: The increasing frequency and severity of drought spells in southern Europe has been associated with reduced growth and increased defoliation and mortality of several tree species, consequently affecting woodland productivity, structure and associated biodiversity. However, topographic variation and associated microclimatic features may buffer against the negative effects of drought at a local level. Here, we aimed to evaluate the influence of topographic variation on oak woodland communities along an aridity gradient. For this, we quantified cork oak woodland structure, bird species richness, abundance, and caterpillar biomass on north- and south-facing slopes along an aridity gradient across the south-western Iberian Peninsula. Drier microclimates on south-facing slopes had lower tree cover and bird richness and abundance than north-facing slopes, and the magnitude of these differences increased markedly from wetter (tree cover and woodland bird abundance ~5-15% lower on south facing slopes) to drier regions (~50-60% lower). This reduction in woodland bird richness and abundance is mainly driven by tree foraging species and likely a response to lower tree cover and resource availability, as caterpillar abundance was also ~50% lower on south-facing slopes. The topographic complexity of the Mediterranean Basin seems to be shaping woodland community-level and trophic chain responses to increasing aridity in Southern Europe. Our results suggest that topographic and microclimatic conditions on north-facing slopes can potentially act as refugia for the high biodiversity characteristic of cork oak woodlands and other Mediterranean landscapes. We discuss cork oak woodland management measures needed to help maximize the resiliency of these Mediterranean socio-ecological systems in the face of climate change. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65339
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, United Kingdom; Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal; School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, United Kingdom; Institute of Biological and Health Sciences, Federal University of Alagoas, Praça Afrânio Jorge, s/n, Prado, Maceió, AL, Brazil; School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
Recommended Citation:
Correia R.A.,Haskell W.C.,Gill J.A.,et al. Topography and aridity influence oak woodland bird assemblages in southern Europe[J]. Forest Ecology and Management,2015-01-01,354