Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania
A total of twenty‐four aerial censuses were carried out in the Simanjiro Plains, northern Tanzania, from 1970 to 1972 in order to estimate the populations, densities and biomass of eleven common large herbivores. Results show that amongst wild herbivores zebra and wildebeest have the highest populat...
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| Format: | Journal Article |
| Language: | Inglés |
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Wiley
1981
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| Online Access: | https://hdl.handle.net/10568/28055 |
| _version_ | 1855520545204862976 |
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| author | Kahurananga, J. |
| author_browse | Kahurananga, J. |
| author_facet | Kahurananga, J. |
| author_sort | Kahurananga, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A total of twenty‐four aerial censuses were carried out in the Simanjiro Plains, northern Tanzania, from 1970 to 1972 in order to estimate the populations, densities and biomass of eleven common large herbivores. Results show that amongst wild herbivores zebra and wildebeest have the highest populations which reach a peak during the wet season between March and May. They were estimated to be about 6000 and 5000, respectively. The corresponding densities were 10.96/km2 and 7.44/km2, respectively. There were practically none of these species in the area during the dry season. Figures for the other species are given. Cattle have the highest population which reaches a peak during the dry season. It was estimated to be about 26,000 with a corresponding density of 44.83/km2. The average total biomass density for all herbivores was 8500 kg/km2.Un total de 24 recencements atriens furent menés dans les Plaines du Simanjiro, en Tanzanie du Nord entre 1970 et 1972, en vue d'estimer les densités et biomasses des populations de 11 grands herbivores communs. Les résultats montrent que, parmi les herbivores, le zèbre et le gnou ont les populations les plus élvées, qui atteignent un maximum durant la saison des pluies entre mars et mai. On a estimé ces populations à 6000 et 5000 respectivement. Les densités correspondantes sont de 10,96/km2 et de 7,44/km2 respectivement. 11 n' y a pratiquement aucune de ces espéces dans la région durant la saison sèche. Les résultats concernant les autres espèces sont donnés. C'est le bétail qui a la plus haute densité de population, atteignant un maximum pendant la saison séche. II a été estiméà environ 26.000, correspondant à une densité de 44,83/km2. La biomasse moyenne totale pour tous les herbivores est de 8500 kg/km2. |
| format | Journal Article |
| id | CGSpace28055 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1981 |
| publishDateRange | 1981 |
| publishDateSort | 1981 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace280552024-05-01T08:16:18Z Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania Kahurananga, J. herbivores plains biomass population estimate wild animals cattle aerial surveying ecology A total of twenty‐four aerial censuses were carried out in the Simanjiro Plains, northern Tanzania, from 1970 to 1972 in order to estimate the populations, densities and biomass of eleven common large herbivores. Results show that amongst wild herbivores zebra and wildebeest have the highest populations which reach a peak during the wet season between March and May. They were estimated to be about 6000 and 5000, respectively. The corresponding densities were 10.96/km2 and 7.44/km2, respectively. There were practically none of these species in the area during the dry season. Figures for the other species are given. Cattle have the highest population which reaches a peak during the dry season. It was estimated to be about 26,000 with a corresponding density of 44.83/km2. The average total biomass density for all herbivores was 8500 kg/km2.Un total de 24 recencements atriens furent menés dans les Plaines du Simanjiro, en Tanzanie du Nord entre 1970 et 1972, en vue d'estimer les densités et biomasses des populations de 11 grands herbivores communs. Les résultats montrent que, parmi les herbivores, le zèbre et le gnou ont les populations les plus élvées, qui atteignent un maximum durant la saison des pluies entre mars et mai. On a estimé ces populations à 6000 et 5000 respectivement. Les densités correspondantes sont de 10,96/km2 et de 7,44/km2 respectivement. 11 n' y a pratiquement aucune de ces espéces dans la région durant la saison sèche. Les résultats concernant les autres espèces sont donnés. C'est le bétail qui a la plus haute densité de population, atteignant un maximum pendant la saison séche. II a été estiméà environ 26.000, correspondant à une densité de 44,83/km2. La biomasse moyenne totale pour tous les herbivores est de 8500 kg/km2. 1981-09 2013-05-06T06:59:50Z 2013-05-06T06:59:50Z Journal Article https://hdl.handle.net/10568/28055 en Limited Access Wiley African Journal of Ecology;19: 225-238 |
| spellingShingle | herbivores plains biomass population estimate wild animals cattle aerial surveying ecology Kahurananga, J. Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title | Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title_full | Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title_fullStr | Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title_full_unstemmed | Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title_short | Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania |
| title_sort | population estimates densities and biomass of large herbivores in simanjiro plains northern tanzania |
| topic | herbivores plains biomass population estimate wild animals cattle aerial surveying ecology |
| url | https://hdl.handle.net/10568/28055 |
| work_keys_str_mv | AT kahuranangaj populationestimatesdensitiesandbiomassoflargeherbivoresinsimanjiroplainsnortherntanzania |