DOI: 10.1016/j.foreco.2015.12.002
Scopus记录号: 2-s2.0-84949645514
论文题名: Livestock vs. wild ungulate management in the conservation of Mediterranean dehesas: Implications for oak regeneration
作者: López-Sánchez A. ; Perea R. ; Dirzo R. ; Roig S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 362 起始页码: 99
结束页码: 106
语种: 英语
英文关键词: Cattle
; Cervus elaphus
; Herbivory damage
; Oak recruitment
; Quercus ilex subsp. ballota
; Sheep
Scopus关键词: Agriculture
; Animals
; Biodiversity
; Forestry
; Reforestation
; Cattle
; Cervus elaphus
; Herbivory
; Oak recruitments
; Quercus ilex subsp. ballota
; Sheep
; Seed
; Ballota
; Bos
; Cervidae
; Cervus elaphus
; Ovis aries
; Quercus
; Quercus ilex
; Ungulata
英文摘要: Dehesas are traditional silvo-pastoral systems with scattered oak trees that maintain considerably high biodiversity. Over the last five decades, dehesas have undergone significant management changes, causing a reduction in oak recruitment that threatens their long-term persistence. Here we examine oak regeneration in Mediterranean dehesas of Central Spain under three distinct and representative management regimes for more than 30years: (1) traditional management of extensive sheep rearing (2) high commercially-competitive management with extensive cattle grazing, and (3) wildlife grazing, mostly by deer. We found that cattle-grazed dehesas sustained a very low density of young oaks (0.05 young plants per 4m2), one third and one fifth of that found in sheep and wildlife areas, respectively. We also found differences in young oak densities depending on plant growth stage, revealing that saplings (late-stage regeneration), but not seedlings, were more abundant under traditional sheep management. Overall, the probability of herbivory damage was higher in areas with cattle (0.85 probability) than in areas with sheep (0.68) and wildlife (0.30). Cattle areas presented, by far, the highest intensity of herbivory, with 63% of the plants showing very high browsing levels (>70% of the biomass damaged). For all management regimes, shrubs were important microhabitat (nurse plants) for seedlings but not for saplings or oak bushes. Our results suggest that conservation practices should include promotion of traditional sheep rearing, reduction of cattle stocking rates, protection of saplings and oak bushes, rotational grazing and preservation of some shrubs. We conclude that agriculture policies that favor traditional sheep rearing and sustainable wildlife populations can promote the conservation of these valuable systems. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65106
Appears in Collections: 影响、适应和脆弱性
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作者单位: Departamento de Sistemas y Recursos Naturales, Universidad Politécnica de Madrid, Ciudad Universitaria, Madrid, Spain; ECOGESFOR, Ecología y Gestión Forestal Sostenible, Universidad Politécnica de Madrid, Ciudad Universitaria, Madrid, Spain; Department of Biology, Stanford University, 371 Serra Mall, Stanford, CA, United States
Recommended Citation:
López-Sánchez A.,Perea R.,Dirzo R.,et al. Livestock vs. wild ungulate management in the conservation of Mediterranean dehesas: Implications for oak regeneration[J]. Forest Ecology and Management,2016-01-01,362