Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil
Habitat fragmentation leads to isolation and reduce habitat areas, in addition to a series of negative effects on natural populations, affecting richness, abundance and distribution of animal species. In such a text, habitat corridors serve as an alternative for connectivity in fragmented landscapes...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Vicerractoría Investigación
2012-09-01
|
| Series: | Revista de Biología Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000300031&lng=en&tlng=en |
| _version_ | 1797721110647668736 |
|---|---|
| author | Andréa O. Mesquita Marcelo Passamani |
| author_facet | Andréa O. Mesquita Marcelo Passamani |
| author_sort | Andréa O. Mesquita |
| collection | DOAJ |
| description | Habitat fragmentation leads to isolation and reduce habitat areas, in addition to a series of negative effects on natural populations, affecting richness, abundance and distribution of animal species. In such a text, habitat corridors serve as an alternative for connectivity in fragmented landscapes, minimizing the effects of structural isolation of different habitat areas. This study evaluated the richness, composition and abundance of small mammal communities in forest fragments and in the relevant vegetation corridors that connect these fragments, located in Southern Minas Gerais, Southeastern Brazil. Ten sites were sampled (five forest fragments and five vegetation corridors) using the capture-mark-recapture method, from April 2007-March 2008. A total sampling effort of 6 300 trapnights resulted in 656 captures of 249 individuals. Across the 10 sites sampled, 11 small mammal species were recorded. Multidimensional scaling (MDS) ordinations and ANOSIM based on the composition of small mammal communities within the corridor and fragment revealed a qualitative difference between the two environments. Regarding abundance, there was no significant difference between corridors and fragments. In comparing mean values of abundance per species in each environment, only Cerradomys subflavus showed a significant difference, being more abundant in the corridor environment. Results suggest that the presence of several small mammal species in the corridor environment, in relatively high abundances, could indicate corridors use as habitat, though they might also facilitate and/or allow the movement of individuals using different habitat patches (fragments). |
| first_indexed | 2024-03-12T09:28:57Z |
| format | Article |
| id | doaj.art-1e6ec3e0425c4da68d25c9f6a62b65d0 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2024-03-12T09:28:57Z |
| publishDate | 2012-09-01 |
| publisher | Vicerractoría Investigación |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-1e6ec3e0425c4da68d25c9f6a62b65d02023-09-02T13:57:51ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442012-09-0160313351343S0034-77442012000300031Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, BrazilAndréa O. Mesquita0Marcelo Passamani1Universidade Federal de LavrasUniversidade Federal de LavrasHabitat fragmentation leads to isolation and reduce habitat areas, in addition to a series of negative effects on natural populations, affecting richness, abundance and distribution of animal species. In such a text, habitat corridors serve as an alternative for connectivity in fragmented landscapes, minimizing the effects of structural isolation of different habitat areas. This study evaluated the richness, composition and abundance of small mammal communities in forest fragments and in the relevant vegetation corridors that connect these fragments, located in Southern Minas Gerais, Southeastern Brazil. Ten sites were sampled (five forest fragments and five vegetation corridors) using the capture-mark-recapture method, from April 2007-March 2008. A total sampling effort of 6 300 trapnights resulted in 656 captures of 249 individuals. Across the 10 sites sampled, 11 small mammal species were recorded. Multidimensional scaling (MDS) ordinations and ANOSIM based on the composition of small mammal communities within the corridor and fragment revealed a qualitative difference between the two environments. Regarding abundance, there was no significant difference between corridors and fragments. In comparing mean values of abundance per species in each environment, only Cerradomys subflavus showed a significant difference, being more abundant in the corridor environment. Results suggest that the presence of several small mammal species in the corridor environment, in relatively high abundances, could indicate corridors use as habitat, though they might also facilitate and/or allow the movement of individuals using different habitat patches (fragments).http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000300031&lng=en&tlng=enroedoresmarsupialesfragmentacióncorredores biológicosbosque Atlántico brasileño |
| spellingShingle | Andréa O. Mesquita Marcelo Passamani Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil Revista de Biología Tropical roedores marsupiales fragmentación corredores biológicos bosque Atlántico brasileño |
| title | Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil |
| title_full | Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil |
| title_fullStr | Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil |
| title_full_unstemmed | Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil |
| title_short | Composition and abundance of small mammal communities in forest fragments and vegetation corridors in Southern Minas Gerais, Brazil |
| title_sort | composition and abundance of small mammal communities in forest fragments and vegetation corridors in southern minas gerais brazil |
| topic | roedores marsupiales fragmentación corredores biológicos bosque Atlántico brasileño |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000300031&lng=en&tlng=en |
| work_keys_str_mv | AT andreaomesquita compositionandabundanceofsmallmammalcommunitiesinforestfragmentsandvegetationcorridorsinsouthernminasgeraisbrazil AT marcelopassamani compositionandabundanceofsmallmammalcommunitiesinforestfragmentsandvegetationcorridorsinsouthernminasgeraisbrazil |