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Lemurs in a dying forest: Factors influencing lemur diversity and distribution in forest remnants of north-eastern Madagascar

Published on Dec 1, 2018in Biological Conservation4.45
· DOI :10.1016/j.biocon.2018.10.008
Dominik Schüßler1
Estimated H-index: 1
(University of Hildesheim),
Ute Radespiel25
Estimated H-index: 25
+ 1 AuthorsJasmin Mantilla-Contreras8
Estimated H-index: 8
(University of Hildesheim)
Abstract
Abstract A majority of Madagascar's iconic lemurs ( Primates , Strepsirrhini ) is threatened with extinction due to anthropogenic activities like land use change (deforestation) and bushmeat hunting. We used a multivariate approach combining land cover mapping, vegetation/degradation monitoring, the degree of anthropogenic disturbance and the status of forest protection by the local community to model their impact on lemur diversity, population densities and encounter rates within a rural area of lowland rain forest in north-eastern Madagascar. High mean annual deforestation rates (2.4%) were calculated since 1990, resulting in a landscape of small and isolated forest fragments. A limited number of eight lemur species belonging to five lemur families were encountered. Diurnal species were absent, while cathemeral lemurs avoided human disturbance. Small and nocturnal species were relatively abundant. Overall lemur diversity was best explained by forest size and a combination of disturbance and hunting. Encounter rates of three nocturnal taxa were influenced by forest size and habitat degradation. Community-level forest protection had no effect on lemur diversity, but coincided with lower levels of habitat degradation. Lemur population sizes were relatively small and only few forests remain that offer suitable habitats for viable populations. We highly recommend external conservation NGOs to support local forest management by improving the existing community-based approach. Actions should include expansion of protected habitats to increase population connectivity (reforestation) and to decrease lemur disturbance by villagers. Without external support, the last remaining forest habitats will be devastated within a few years resulting in the local extinction of most lemur populations.
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References74
Newest
#1David L. MillerH-Index: 7
#2Eric RexstadH-Index: 22
Last.Jeffrey L. LaakeH-Index: 30
view all 5 authors...
5 CitationsSource
#1Dominik Schüßler (University of Hildesheim)H-Index: 1
#2Phyllis C. Lee (University of Stirling)H-Index: 38
Last.Robin Stadtmann (University of Hildesheim)H-Index: 1
view all 3 authors...
2 CitationsSource
#2Clovis GrinandH-Index: 11
Last.Frédéric AchardH-Index: 1
view all 7 authors...
24 CitationsSource
#1Travis S. SteffensH-Index: 3
#2Shawn M. Lehman (U of T: University of Toronto)H-Index: 19
5 CitationsSource
#1Charlie J. Gardner (UKC: University of Kent)H-Index: 12
#2Martin E. NicollH-Index: 2
view all 7 authors...
19 CitationsSource
#1Casey M. Setash (CSU: Colorado State University)H-Index: 1
#2Sarah Zohdy (AU: Auburn University)H-Index: 8
Last.Caitlin J. Karanewsky (SBU: Stony Brook University)H-Index: 5
view all 4 authors...
6 CitationsSource
#1Cortni Borgerson (Harvard University)H-Index: 4
#2Delox RajaonaH-Index: 1
Last.Christopher D. Golden (Harvard University)H-Index: 20
view all 6 authors...
3 CitationsSource
#1Rachel Mary Sawyer (Oxford Brookes University)H-Index: 1
Last.Giuseppe Donati (Oxford Brookes University)H-Index: 21
view all 4 authors...
4 CitationsSource
#1Joachim Nopper (UHH: University of Hamburg)H-Index: 5
Last.Jörg U. Ganzhorn (UHH: University of Hamburg)H-Index: 43
view all 5 authors...
4 CitationsSource
#1Patrick O. Waeber (ETH Zurich)H-Index: 15
#2Lucienne Wilmé (University of Antananarivo)H-Index: 15
Last.Porter P. Lowry (CNRS: Centre national de la recherche scientifique)H-Index: 26
view all 5 authors...
80 CitationsSource
Cited By1
Newest
#1Dominik Schüßler (University of Hildesheim)H-Index: 1
#2Jordi Salmona (CNRS: Centre national de la recherche scientifique)
Last.Ute RadespielH-Index: 25
view all 26 authors...
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