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Gray-headed Lemur (Eulemur cinereiceps) Abundance and Forest Structure Dynamics at Manombo, Madagascar

2010; Wiley; Volume: 43; Issue: 3 Linguagem: Inglês

10.1111/j.1744-7429.2010.00705.x

1744-7429

Steig E. Johnson, Christina Ingraldi, Fidimalala B. Ralainasolo, Hubert E. Andriamaharoa, Ludovic Reza, Christopher R. Birkinshaw, Patricia C. Wright, Jonah Ratsimbazafy,

Amphibian and Reptile Biology

BiotropicaVolume 43, Issue 3 p. 371-379 Gray-headed Lemur (Eulemur cinereiceps) Abundance and Forest Structure Dynamics at Manombo, Madagascar Steig E. Johnson, Steig E. Johnson Department of Anthropology, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2S 0H5, Canada 7Corresponding author; e-mail: steig.johnson@ucalgary.caSearch for more papers by this authorChristina Ingraldi, Christina Ingraldi Department of Anthropology, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2S 0H5, CanadaSearch for more papers by this authorFidimalala B. Ralainasolo, Fidimalala B. Ralainasolo Durrell Wildlife Conservation Trust, Lot II 49J Ampasanimalo, B.P. 8511, Antananarivo 101, MadagascarSearch for more papers by this authorHubert E. Andriamaharoa, Hubert E. Andriamaharoa Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorReza Ludovic, Reza Ludovic Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorChristopher R. Birkinshaw, Christopher R. Birkinshaw Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorPatricia C. Wright, Patricia C. Wright Department of Anthropology, Stony Brook University, Stony Brook, New York 11794, U.S.A. Institute of Biotechnology, Viikki Biocenter, University of Helsinki, PO Box 56, FIN-00014 Helsinki, Finland Centre ValBio, B.P. 33, Ranomafana, 312 Ifanadiana, MadagascarSearch for more papers by this authorJonah H. Ratsimbazafy, Jonah H. Ratsimbazafy Durrell Wildlife Conservation Trust, Lot II 49J Ampasanimalo, B.P. 8511, Antananarivo 101, MadagascarSearch for more papers by this author Steig E. Johnson, Steig E. Johnson Department of Anthropology, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2S 0H5, Canada 7Corresponding author; e-mail: steig.johnson@ucalgary.caSearch for more papers by this authorChristina Ingraldi, Christina Ingraldi Department of Anthropology, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2S 0H5, CanadaSearch for more papers by this authorFidimalala B. Ralainasolo, Fidimalala B. Ralainasolo Durrell Wildlife Conservation Trust, Lot II 49J Ampasanimalo, B.P. 8511, Antananarivo 101, MadagascarSearch for more papers by this authorHubert E. Andriamaharoa, Hubert E. Andriamaharoa Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorReza Ludovic, Reza Ludovic Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorChristopher R. Birkinshaw, Christopher R. Birkinshaw Missouri Botanical Garden, Research and Conservation Madagascar Program, B.P. 3391, Antananarivo 101, MadagascarSearch for more papers by this authorPatricia C. Wright, Patricia C. Wright Department of Anthropology, Stony Brook University, Stony Brook, New York 11794, U.S.A. Institute of Biotechnology, Viikki Biocenter, University of Helsinki, PO Box 56, FIN-00014 Helsinki, Finland Centre ValBio, B.P. 33, Ranomafana, 312 Ifanadiana, MadagascarSearch for more papers by this authorJonah H. Ratsimbazafy, Jonah H. Ratsimbazafy Durrell Wildlife Conservation Trust, Lot II 49J Ampasanimalo, B.P. 8511, Antananarivo 101, MadagascarSearch for more papers by this author First published: 01 October 2010 https://doi.org/10.1111/j.1744-7429.2010.00705.xCitations: 11 Read the full textAboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat ABSTRACT Madagascar's ecosystems are subject to high levels of anthropogenic disturbance and stochastic events, including cyclones. We investigated the abundance of gray-headed lemurs (Eulemur cinereiceps) and vegetation structure in the fragmented forest of Manombo from 1995 to 2007, including 10 yr following Cyclone Gretelle in January 1997. We predicted that the density of this arboreal, frugivorous lemur would be similar in the pre- and post-cyclone intervals only if tree measures demonstrate trends toward recovery in the post-cyclone period. Initial impacts included severe damage to over 60 percent of trees. After 10 yr, all vegetation metrics except for stem density remained low relative to the pre-cyclone period, including dbh, height, and basal area. To investigate vegetation changes separately from cyclone effects, we compared forest structure in the pre-cyclone period alone. Basal area declined but dbh and stem density did not vary between 1995 and 1997; thus, anthropogenic activities or other factors did not consistently alter forest structure in this 2-yr period. Subsequent changes may be linked to cyclone response, presumably in synergy with human disturbance. Contrary to predictions, recent gray-headed lemur population densities were nearly identical to those recorded in 1995 (13.5 ± 3.2 vs. 13.6 ± 6.4 individuals/km2, respectively). Lemur populations may have remained stable or declined initially and then recovered in the last 10 yr. Life history and ecological adaptations may explain their resistance or resilience when faced with habitat change. Recent models suggest that lemurs have evolved in response to unpredictable environmental conditions. Such environmental variability may increase with projected climate change. Citing Literature Volume43, Issue3May 2011Pages 371-379 RelatedInformation