Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli
Habitat loss and fragmentation are among the major threats to wildlife populations in tropical forests. Loss of habitat reduces the carrying capacity of the landscape and fragmentation disrupts biological processes and exposes wildlife populations to the effects of small population size, such as red...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/20812 |
| _version_ | 1855535068316958720 |
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| author | Bergl, R. Warren, Y. Nicholas, A. Dunn, A. Imong, I. Sunderland-Groves, J. Oates, J. |
| author_browse | Bergl, R. Dunn, A. Imong, I. Nicholas, A. Oates, J. Sunderland-Groves, J. Warren, Y. |
| author_facet | Bergl, R. Warren, Y. Nicholas, A. Dunn, A. Imong, I. Sunderland-Groves, J. Oates, J. |
| author_sort | Bergl, R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Habitat loss and fragmentation are among the major threats to wildlife populations in tropical forests. Loss of habitat reduces the carrying capacity of the landscape and fragmentation disrupts biological processes and exposes wildlife populations to the effects of small population size, such as reduction of genetic diversity and increased impact of demographic stochasticity. The Critically Endangered Cross River gorilla Gorilla gorilla diehli is threatened in particular by habitat disturbance because its population is small and it lives in an area where high human population density results in intense exploitation of natural resources. We used remotely-sensed data to assess the extent and distribution of gorilla habitat in the Cross River region and delineated potential dispersal corridors. Our analysis revealed .8,000 km2 of tropical forest in the study region, 2,500 km2 of which is in or adjacent to areas occupied by gorillas. We surveyed 12 areas of forest identified as potential gorilla habitat, 10 of which yielded new records of gorillas. The new records expand the known range of the Cross River gorilla by .50%, and support genetic analyses that suggest greater connectivity of the population than previously assumed. These findings demonstrate that considerable connected forest habitat remains and that the area could potentially support a much larger gorilla population if anthropogenic pressures such as hunting could be reduced |
| format | Journal Article |
| id | CGSpace20812 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| record_format | dspace |
| spelling | CGSpace208122025-01-24T14:20:18Z Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli Bergl, R. Warren, Y. Nicholas, A. Dunn, A. Imong, I. Sunderland-Groves, J. Oates, J. gorrilas rangelands remote sensing biodiversity habitat destruction Habitat loss and fragmentation are among the major threats to wildlife populations in tropical forests. Loss of habitat reduces the carrying capacity of the landscape and fragmentation disrupts biological processes and exposes wildlife populations to the effects of small population size, such as reduction of genetic diversity and increased impact of demographic stochasticity. The Critically Endangered Cross River gorilla Gorilla gorilla diehli is threatened in particular by habitat disturbance because its population is small and it lives in an area where high human population density results in intense exploitation of natural resources. We used remotely-sensed data to assess the extent and distribution of gorilla habitat in the Cross River region and delineated potential dispersal corridors. Our analysis revealed .8,000 km2 of tropical forest in the study region, 2,500 km2 of which is in or adjacent to areas occupied by gorillas. We surveyed 12 areas of forest identified as potential gorilla habitat, 10 of which yielded new records of gorillas. The new records expand the known range of the Cross River gorilla by .50%, and support genetic analyses that suggest greater connectivity of the population than previously assumed. These findings demonstrate that considerable connected forest habitat remains and that the area could potentially support a much larger gorilla population if anthropogenic pressures such as hunting could be reduced 2011 2012-06-04T09:15:12Z 2012-06-04T09:15:12Z Journal Article https://hdl.handle.net/10568/20812 en Bergl, R., Warren, Y., Nicholas, A., Dunn, A., Imong, I., Sunderland-Groves, J., Oates, J. 2011. Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli . Oryx ISSN: 0030-6053. |
| spellingShingle | gorrilas rangelands remote sensing biodiversity habitat destruction Bergl, R. Warren, Y. Nicholas, A. Dunn, A. Imong, I. Sunderland-Groves, J. Oates, J. Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title | Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title_full | Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title_fullStr | Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title_full_unstemmed | Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title_short | Remote sensing analysis reveals habitat, dispersal corridors and expanded distribution for the Critically Endangered Cross River gorilla Gorilla gorilla diehli |
| title_sort | remote sensing analysis reveals habitat dispersal corridors and expanded distribution for the critically endangered cross river gorilla gorilla gorilla diehli |
| topic | gorrilas rangelands remote sensing biodiversity habitat destruction |
| url | https://hdl.handle.net/10568/20812 |
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