Home ranges of ring-tailed lemur troops and the density of large trees at Berenty Reserve, Madagascar
Bibliographic Data
| ID | 20148679 |
|---|---|
| Authors | Naoki Koyama (0000-0003-0376-7701, Kyoto University), Takayo SOMA (Kyoto University), Shinichiro Ichino (0000-0001-7452-0509, Kyoto University), Yukio Takahata (0000-0001-9822-3197, Kwansei Gakuin University) |
| Year | 2005 |
| Volume | 2005 |
| Issue | 66 |
| Pages | 1-12 |
| Publication date | 2005-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Journal of African Studies (JOURNAL) |
| Journal identifiers | ISSN: 0065-4140 • E-ISSN: 1884-5533 |
| Publisher | Japan Association for African Studies (PUBLISHER • JP) |
| DOI | 10.11619/africa1964.2005.1 |
| OpenAlex | W2334961919 |
| Language | EN |
| Citations received | 2 |
| References cited | 4 |
At Berenty Reserve, Madagascar, we have set up a main study area of 14.2 ha to study the demographic changes of ring-tailed lemurs for 11 years from 1989 to 2000. We also have set up a broader study area of 30.4 ha to study the environmental changes, including the main study area. In the main study area, due to the social changes such as troop divisions and evictions, the number of troops increased from three to six. Consequently, home range size of a troop decreased. In the broader study area, there were 475 large trees belonging to 14 species and 9 families. The most abundant species was kily (Tamarindus indica) (n=289), the second benono (Acacia rovumae) (n=74), the third voleli (Nestina isoneura) (n=66). These three species accounted for 90.3 % of all large trees. Population density of large trees was 15.6 per ha, and that of idly trees was 10.3 per ha. In 1989, 12.7 kily trees existed per ha within the main study area of 14.2 ha.In 2000, we re-measured the size of kily trees. Within the main study area of 14.2 ha, the density of idly trees decreased to 11.2 per ha. This decrease was due to the number of dead kily trees exceeded the number of newcomers. In contrast, the number of ring-tailed lemurs over one-year old increased from 63 in 1989 to 89 in 2000. As a result, the number of kily trees per animal was decreased from 2.8 to 1.8. Among troops, there was a great variation in the number of idly trees per animal. Troop CX occupied the richest area (4.7 kily trees/animal), and Troop T2 ranged the poorest area (0.6 kily trees/animal). On the other hand, the amount of kily fruits may fluctuate by each individual tree, area, and year. For example, the harvest of idly fruits was very poor in 2000, and the abundance score of kily fruits for Troop CX was lower than average score of the main study area. The number of brown lemurs (Eulemur fulvus) was also increasing. Since brown lemurs' feeding habits were very similar to ring-tailed lemurs, it is likely that both the within species and inter-species competitions are becoming intense for ring-tailed lemurs
Acacia · Biology · Geography · Habitat · Home range · Lemur · Nature reserve · Population · Population density · Primate · Range (aeronautics) · Animal Behavior and Reproduction · Demography · Ecology · Forestry · Primate Behavior and Ecology · Wildlife Ecology and Conservation
| Unique citing works | 2 |
|---|---|
| Citations per year | 0,11 |
| Citation span | 2008 - 2011 (4) |
| Citation velocity | historical |
| Highly cited | No |