Rapid Survey and Assessment of the Northern Sportive Lemur,<i>Lepilemur septentrionalis</i>, in Northern Madagascar

Ranaivoarisoa, Jean Freddy; Zaonarivelo, John R.; Lei, Runhua; Johnson, Steig E.; Wyman, Tracy M.; Mittermeier, Russell A.; Louis, Edward E.

doi:10.1896/052.027.0109

Cited by 5 publications

(5 citation statements)

References 24 publications

(26 reference statements)

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“…The hitherto unprotected, degraded forest of Orangea is now being transformed into the National Park Oronjia. The protection of this area is of particular concern not only for the survival of the microendemic A. manga, but also harbors the highest density of critically endangered reptiles in Madagascar (Jenkins et al, 2014) and is home to Lepilemur septentrionalis, one of the most threatened primate species in the world (Ranaivoarisoa et al, 2013).…”

Section: Regional Biogeography and Conservationmentioning

confidence: 99%

When Giant Stick Insects Play With Colors: Molecular Phylogeny of the Achriopterini and Description of Two New Splendid Species (Phasmatodea: Achrioptera) From Madagascar

et al. 2019

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Section: Regional Biogeography and Conservationmentioning

confidence: 99%

When Giant Stick Insects Play With Colors: Molecular Phylogeny of the Achriopterini and Description of Two New Splendid Species (Phasmatodea: Achrioptera) From Madagascar

et al. 2019

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“…Our study was conducted over two field seasons from June to August 2016 (FS1) and February to May 2017 (FS2) at Montagne des Français, Madagascar, a region located ~12 km southeast of the seaport city of Antsiranana (Figure 2). MDF has an area of approximately 6500 ha and is composed of patches of dry, deciduous forest surrounding calcareous rock peaks (100–500 m; D'Cruze et al, 2007; Ranaivoarisoa et al, 2013; Sabel et al, 2009). Several other lemur species inhabit this region including aye‐aye ( Daubentonia madagascariensis ), crowned lemur ( E. coronatus ), and northern mouse lemurs ( Mirza tavaratra ).…”

Section: Methodsmentioning

confidence: 99%

“…NSLs are restricted to the Montagne des Français (MDF) forest region in northern Madagascar. At present, this species is considered one of the most endangered lemurs in Madagascar, with an estimated population of 87 known individuals (Bailey et al, 2020; Ranaivoarisoa et al, 2013). In this study, we conducted behavioral observations on individual northern sportive lemurs over two field seasons.…”

Section: Introductionmentioning

confidence: 99%

“…2). MDF has an area of approximately 6500 ha and is composed of patches of dry, deciduous forest surrounding calcareous rock peaks (100-500 m; D' Cruze et al, 2007;Ranaivoarisoa et al, 2013;Sabel et al, 2009). Several other lemur species inhabit this region including aye-aye (Daubentonia madagascariensis), crowned lemur (E. coronatus), and northern mouse lemurs (Mirza tavaratra).…”

Section: Introductionmentioning

confidence: 99%

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The influence of seasonality, anthropogenic disturbances, and cyclonic activity on the behavior of northern sportive lemurs (Lepilemur septentrionalis) at Montagne des Français, Madagascar

Dinsmore

Strier

Louis

2021

American J Primatol

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Anthropogenic tropical deforestation and degradation imminently threaten primates today. Primates living in these disturbed habitats may also be subjected to increasingly severe tropical storms such as cyclones or hurricanes. These disturbances pose an immediate risk to their livelihood and can dramatically alter their habitats, in turn potentially shifting behavioral patterns. We had the unique opportunity to study the effects of seasonality, anthropogenic disturbances, and the immediate effects of a cyclone on the behavior of the critically endangered northern sportive lemur (NSL) in an anthropogenically disturbed forest in Madagascar. Cyclone Enawo made landfall on March 7, 2017 in northeast Madagascar with sustained wind speeds of 230 km/h. We collected behavioral data on nine individual NSLs during both wet and dry seasons, before and after Cyclone Enawo, and in areas of differing human activity, using scan sampling at 5-min intervals. We ran generalized linear mixed models to test the effects of seasonality and disturbances on behavior. We found that NSLs spent more time feeding in dry months compared with wet (Z = −4.21, p < 0.001). More specifically, they spent more time-consuming leaves and vine species in the dry season (Z = −2.26, p = 0.02; Z = −2.3; p = 0.02). We also found that NSLs were observed at lower heights in trees after the cyclone (Z = −2.45; p = 0.016) and spent more time in the interior portions of trees (Z = 3.44; p < 0.001), perhaps due to extensive limb damage of emergent trees documented after the cyclone. Our analyses show that seasonality affected most aspects of NSL behavior, followed by the effects of Cyclone Enawo, with anthropogenic disturbances having little effect.Our data suggest that the behavioral flexibility of NSLs in response to predictable seasonality may enable them to respond similarly to stochastic climatic disturbances.However, their generalist diet may allow them to persist in anthropogenically disturbed landscapes without the need to greatly alter their behavior.

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“…-Memecylon oblanceolatum is known from a single location on the Sahafary plateau and has an estimated EOO of 2 km2 and an AOO of 12 km2. The forest in this area has been severely degraded and evidently remains unprotected (Ranaivoarisoa et al, 2013). Memecylon oblanceolatum is thus provisionally assessed as "Critically Endangered" [CR B2ab(iii)] in accordance with the IUCN Red List Categories and Criteria (IUCN, 2012).…”

Section: Holotypusmentioning

confidence: 99%

Revised treatment of Memecylon section Buxifolia (Melastomataceae) in Madagascar

Stone¹

2022

Candollea

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Memecylon sect. Buxifolia R.D. Stone (Melastomataceae, Olisbeoideae) is a group of forest shrubs and small understory trees distributed from tropical East Africa (Kenya and Tanzania) to eastern South Africa and with a disjunct occurrence in western and northern Madagascar. In a previous treatment, three endemic Malagasy species of this section were recognized: M. amplifolium R.D. Stone, M. buxifolium Blume (= M. perrieri Danguy), and M. multinode Jacq.-Fél. The present work describes and illustrates six new species from Madagascar belonging to this section: M. ambilobense R.D. Stone, M. angustatum R.D. Stone, M. leptophyllum R.D. Stone, M. minutifolium R.D. Stone, M. oblanceolatum R.D. Stone, and M. reductum R.D. Stone. With these revisions, the flora of Madagascar now holds nine species of Memecylon sect.Buxifolia, for which a formal taxonomic treatment is provided including a dichotomous key. The conservation status of each species is provisionally assessed in accordance with the IUCN Red List Categories and Criteria. Résumé

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Rapid Survey and Assessment of the Northern Sportive Lemur,Lepilemur septentrionalis, in Northern Madagascar

Cited by 5 publications

References 24 publications

When Giant Stick Insects Play With Colors: Molecular Phylogeny of the Achriopterini and Description of Two New Splendid Species (Phasmatodea: Achrioptera) From Madagascar

When Giant Stick Insects Play With Colors: Molecular Phylogeny of the Achriopterini and Description of Two New Splendid Species (Phasmatodea: Achrioptera) From Madagascar

The influence of seasonality, anthropogenic disturbances, and cyclonic activity on the behavior of northern sportive lemurs (Lepilemur septentrionalis) at Montagne des Français, Madagascar

Revised treatment of Memecylon section Buxifolia (Melastomataceae) in Madagascar

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