DOI: 10.1016/j.foreco.2013.09.001
Scopus记录号: 2-s2.0-84902181757
论文题名: Can overharvesting of a non-timber-forest-product change the regeneration dynamics of a tropical rainforest? The case study of Euterpe edulis
作者: Muler A.E. ; Rother D.C. ; Brancalion P.S. ; Naves R.P. ; Rodrigues R.R. ; Pizo M.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 324 起始页码: 117
结束页码: 125
语种: 英语
英文关键词: Forest succession
; Harvesting
; Keystone species
; Seed dispersal
; Seed rain
Scopus关键词: Animals
; Bamboo
; Harvesting
; Rain
; Seed
; Forest succession
; Functional compositions
; Keystone species
; Non-timber forest products
; Regeneration dynamics
; Seed dispersal
; Seed rain
; Tropical rain forest
; Reforestation
; bamboo
; disturbance
; forest canopy
; harvesting
; keystone species
; monocotyledon
; nontimber forest product
; plant community
; rainforest
; regeneration
; seed dispersal
; seed rain
; succession
; tropical forest
; Atlantic Forest
; Brazil
; Animalia
; Euterpe edulis
; Guadua
英文摘要: The exploitation of non-timber forest products is often considered a low-impact activity in tropical forests. However, assessments of the impacts of such activity are mostly focused on the harvested species and not on the plant community, thus limiting our understanding for establishing forest management recommendations. We investigated the consequences of Euterpe edulis palm heart harvesting on the seed rain in the Brazilian Atlantic rainforest. We compared the density of E. edulis individuals, as well as the density of E. edulis seeds, and the density, richness and functional composition of seed rain of the whole plant community, before and after palm heart harvesting in a 10ha permanent plot. This assessment was carried out in preserved (typical old-growth Atlantic rainforest) and in disturbed (more open habitat dominated by the native bamboo Guadua tagoara) forest patches. Palm harvesting reduced the E. edulis population from 202.16 to 25.67 ind/ha and its seed rain density from 0.362 to 0.3 seeds/m2 and from 2.395 to 0.15 seeds/m2 in preserved and disturbed forest patches, respectively. Seed density of light-dependent climbers, pioneer trees, bamboo and animal-dispersed seeds increased after palm harvesting, especially in the disturbed forest patches, where palm harvesting was more intense and may have changed the light regime of the understory. On the other hand, species richness of the plant community declined by half. We observed a remarkable decline in the number of animal-dispersed species, especially for those with large seeds, suggesting that the activity of seed dispersers, including many species attracted by E. edulis fruits, was reduced. Therefore, harvesting of E. edulis palm heart may change the regeneration dynamics of the Atlantic rainforest, both due to shifts in forest structure, mediated by the removal of individuals from the forest canopy, and in community functioning, mediated by the interference on the activity of seed dispersers. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65938
Appears in Collections: 影响、适应和脆弱性
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作者单位: Departamento de Ciências Biológicas, ESALQ - Universidade de São Paulo (USP), Av. Pádua Dias 11, Caixa Postal 9, Piracicaba, CEP 13418-900 São Paulo, Brazil; Programa de pós-graduação em Biologia Vegetal, Campus Rio Claro - Universidade Estadual Paulista (UNESP), Av. 24A 1515, Caixa Postal 199, CEP 13506-900 Rio Claro, São Paulo, Brazil; Departamento de Ciências Florestais, ESALQ - Universidade de São Paulo (USP), Av. Pádua Dias, 11 Caixa Postal 9, Piracicaba CEP 13418-900 São Paulo, Brazil; Departamento de Zoologia, UNESP - Universidade Estadual Paulista Júlio de Mesquita Filho(UNESP), Av. 24-A 1515, Bela Vista, CEP 13506-900 Rio Claro, São Paulo, Brazil
Recommended Citation:
Muler A.E.,Rother D.C.,Brancalion P.S.,et al. Can overharvesting of a non-timber-forest-product change the regeneration dynamics of a tropical rainforest? The case study of Euterpe edulis[J]. Forest Ecology and Management,2014-01-01,324