Fragment quality and distribution of the arboreal primate Propithecus verreauxi in the spiny forest of south Madagascar

@article{Norscia2010FragmentQA,
  title={Fragment quality and distribution of the arboreal primate Propithecus verreauxi in the spiny forest of south Madagascar},
  author={Ivan Norscia and Elisabetta Palagi},
  journal={Journal of Tropical Ecology},
  year={2010},
  volume={27},
  pages={103 - 106}
}
  • I. Norscia, E. Palagi
  • Published 17 December 2010
  • Environmental Science
  • Journal of Tropical Ecology
The increasing proportion of the landscape used by humans has led, and is still leading, to the conversion of the original habitat into numerous small patches, often separated by a matrix of inhospitable land-uses. This habitat fragmentation is a major threat to biological diversity and is considered to be the primary cause of the present species extinction crisis (Aurambout et al. 2005). Survival in fragments is related to both intrinsic factors, such as abundance and sex ratio, and extrinsic… 

Spatial distribution and density of the Lar gibbon Hylobates lar and Siamang Symphalangus syndactylus in relation to canopy structure and disturbance in a lowland dipterocarp forest, Sumatra.

Results indicate these hylobatid species exhibit a degree of tolerance and behavioural flexibility to habitat disturbance, though the preservation of tall trees and the provision of a significant amount of canopy connectivity is required for their continued presence in lowland forests.

Trends in forest fragment research in Madagascar: Documented responses by lemurs and other taxa

Characterizing trends of fragmentation research in Madagascar emphasizes the challenges of documenting fragmentation's effects while highlighting the benefits of research within fragmented landscapes, particularly when combined with consideration for how the matrix within human‐modified landscapes may impact primate populations.

Patterns of male dispersal in Verreaux's sifaka (Propithecus verreauxi) at Kirindy Mitea National Park

The absence of a seasonal immigration pattern suggests that fluid group boundaries may allow mating success without establishment in a social group before the mating season, and it is suggested that coalitions may be used to improve competitive ability.

Forest stucture and group density of Thomas' langur monkey, Presbytis thomasi.

Tropical forests contain a substantial portion of global biodiversity, and provide a wide range of ecosystem services. Anthropogenic activities such as logging and agriculture alter the physical

Structure and Composition of Ankarafa Forest, Sahamalaza-Iles Radama National Park, Madagascar: Implications for the Frugivorous Endemic Blue-Eyed Black Lemur (Eulemur flavifrons)

Being relatively high in tree species diversity, Ankarafa Forest needs to be protected to continue to support its endemic fauna, particularly those with restricted distribution such as the blue-eyed black lemur.

What do we know about the effect of patch size on primate species across life history traits?

There is a need to move beyond quantifying patch size effects alone and to quantify the effects of changes occurring at broader landscape scales to allow more holistic primate conservation strategies to be developed across whole landscapes rather than being focussed on the management of individual patches.

Notes on the Natural Geographical Distribution Range of the Madagascan Kalanchoe dinklagei Rauh (Crassulaceae Subfam. Kalanchooideae)

The genus Kalanchoe Adans is most diverse in Madagascar where about one third of the known ca.

Sexual Signalling in Propithecus verreauxi: Male “Chest Badge” and Female Mate Choice

It is reported that stained-chested males had a higher throat marking activity than clean-cheted males during the mating season, but not during the birth season, and it is found that females copulated more frequently with stained-Chested males than the clean- Chested males.

COMPARISON OF THREE SHORT-TERM IMMOBILIZATION REGIMES IN WILD VERREAUX'S SIFAKAS (PROPITHECUS VERREAUXI): KETAMINE–XYLAZINE, KETAMINE–XYLAZINE–ATROPINE, AND TILETAMINE–ZOLAZEPAM

KX produces good, but short, immobilization in Verreaux's sifakas at approximately 5mg/kg ketamine and 0.5 mg/kg xylazine and a smoother and shorter recovery phase than 5 to 10 mg/ kg TZ, whereas adding atropine to KX did not provide any benefits.

Conservation planning for primate communities in rapidly transforming landscapes

..................................................................................................ii Declaration by

References

SHOWING 1-10 OF 22 REFERENCES

Diademed Sifaka (Propithecus diadema) Ranging and Habitat Use in Continuous and Fragmented Forest: Higher Density but Lower Viability in Fragments?

Investigation of ranging behaviors of diademed sifakas in continuous and fragmented forest at Tsinjoarivo, eastern Madagascar, using focal animal observations to examine home range size, daily path length (DPL), and habitat use relative to forest edges over 12 mo.

Effects of forest fragmentation, introduced Rattus rattus and the role of exotic tree plantations and secondary vegetation for the conservation of an endemic rodent and a small lemur in littoral forests of southeastern Madagascar

We sought to assess the effects of forest fragmentation, introduced Rattus rattus, exotic tree plantations and secondary vegetation on the endemic rodent Eliurus webbi (Nesomyinae) and the lemur

Spatial variation in density and total size estimates in fragmented primate populations: the golden‐crowned sifaka (Propithecus tattersalli)

The results are consistent with the hypothesis that this species does not experience a clear edge effect, at least during the first half of the dry season, and could be due to a high resiliency to habitat fragmentation or to the fact that fragmentation has been going on for some time.

Berenty 2006: Census of Propithecus verreauxi and Possible Evidence of Population Stress

The sifaka population seems to be under stress: researchers need to resume demographic studies, interrupted in Berenty in the mid-1980s, to preserve in situ a species that is difficult to protect ex situ.

Behavior patterns of Southern Bearded Sakis (Chiropotes satanas) in the fragmented landscape of Eastern Brazilian Amazonia

Overall, the island group presented a relatively reduced behavioral repertoire, apparently reflecting factors such as group size and the size and quality of its home range.

Pilot survey of avahi population (woolly lemurs) in littoral forest fragments of southeast Madagascar

The density of the population was not correlated with fragment size and number of plant morphospecies, while it was correlated with large tree availability, and the loss of large trees by selective logging seems to affect avahi populations more than other variables.

A Spatial Model to Estimate Habitat Fragmentation and Its Consequences on Long-Term Persistence of Animal Populations

A general model, adaptable for specific species, capable of identifying suitable habitat patches within fragmented landscapes and investigating the capacity of populations to move between these patches is developed, which showed area of natural area alone was insufficient to estimate the consequences on animal populations.

Surveys of sympatric lemurs at Anjamena, north-west Madagascar.

In order to assess the status of lemurs along the lower reaches of the Mahavavy in north-west Madagascar, we carried out transect line sampling at Anjamena between April and August 1995. These data

Ringtailed lemur biology : Lemur catta in Madagascar

Temporal Change in Tooth Size Among Ringtailed Lemurs (Lemur catta) at the Beza Mahafaly Special Reserve, Madagascar: Effects of an Environmental Fluctuation.

Berenty Reserve: A Research Site in Southern Madagascar

The forest reserves of Berenty Estate were established by the de Heaulme family in consultation with local Tandroy clans, beginning in 1936 when the de Heaulmes founded a sisal plantation beside the