Distribuição espacial em pequena escala de um anfípode exótico em fragmento florestal e plantio de espécies nativas
| Autor: | Marcio Uehara-Prado, Cristiane Matavelli, Wesley Augusto Conde Godoy, Natalia O. Leiner |
|---|---|
| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Arboreal locomotion
QH301-705.5 Population Floresta Atlântica Plant Science Spatial distribution Invasive species Vegetation cover Abundance (ecology) Genetics Amphipoda Biology (General) education Molecular Biology Talitroides topitotum Ecology Evolution Behavior and Systematics QH540-549.5 education.field_of_study Ecology Forestry perturbação antrópica Geography Habitat Litter Animal Science and Zoology espécie invasora |
| Zdroj: | Revista de Biologia Neotropical, Vol 6, Iss 2, Pp 35-43 (2010) Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 2178-0579 1807-9652 |
| Popis: | Made available in DSpace on 2013-09-27T16:24:15Z (GMT). No. of bitstreams: 1 ZOORECZOOR14705040169.pdf: 357888 bytes, checksum: 3d81cac6e838f5442f10b97587df61a3 (MD5) Previous issue date: 2009-01-01 Made available in DSpace on 2013-09-30T18:41:21Z (GMT). No. of bitstreams: 1 ZOORECZOOR14705040169.pdf: 357888 bytes, checksum: 3d81cac6e838f5442f10b97587df61a3 (MD5) Previous issue date: 2009-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:54:17Z No. of bitstreams: 1 ZOORECZOOR14705040169.pdf: 357888 bytes, checksum: 3d81cac6e838f5442f10b97587df61a3 (MD5) Made available in DSpace on 2014-05-20T13:54:17Z (GMT). No. of bitstreams: 1 ZOORECZOOR14705040169.pdf: 357888 bytes, checksum: 3d81cac6e838f5442f10b97587df61a3 (MD5) Previous issue date: 2009-01-01 Anthropogenic interferences in natural environments cause the breakage of spatial and competitive barriers, which may infuence the spatial distribution of species. In this study, we describe the spatial distribution of an exotic amphipod, Talitroides topitotum, in two distinct sites, a forest fragment and a plantation of native arboreal species. We analyzed possible variations in this spatial distribution in different periods of the year and verifed whether the vegetation cover and the litter layer depth may explain the distribution pattern of this species. We performed analyses of frequency distribution to determine the pattern of this species spatial distribution, as well as correlation tests to determine the effect of these two variables of habitat structure. The spatial distribution analysis revealed that T. topitotum presents aggregated distribution in both areas, indicating that this species has low environmental demands or that both areas are below a minimum environmental quality threshold. However, even with this similarity, the population in the fragmented site presented a higher index of aggregation when compared with the population of the plantation site. Corroborating previous studies, there was a negative correlation between abundance of T. topitotum and litter layer depth in the plantation site. Studies on invaded habitats can help understand how invasive species occupy new environments and the factors that can infuence their spatial distribution. Programa de Pos-graduacao em Zoologia, Instituto de Biologia, Universidade Estadual Paulista (UNESP), Caixa Postal 510, Botucatu, 18618-000, São Paulo, Brazil Programa de Pos-graduacao em Zoologia, Instituto de Biologia, Universidade Estadual Paulista (UNESP), Caixa Postal 510, Botucatu, 18618-000, São Paulo, Brazil |
| Databáze: | OpenAIRE |
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