Abstract
We aimed to identify the geographical and biotic limitations of Microcebus berthae, the smallest extant primate. Furthermore we analyzed the mating system of two local populations and their habitat use in relation to microhabitat structures and to those of Microcebus murinus and Cheirogaleus medius, two potentially competing lemur species. The range of Microcebus berthae is restricted to ≤220 km2 in the dry deciduous forest of western Madagascar. A very optimistic estimate of the total population size is ca. 7900 individuals. During a 13-mo mark-recapture study individuals were trapped from May 1995 to May 1996 at permanent trap locations 50 m apart over 2 study areas of ca. 25 ha each. The spacing of trap locations where individuals have been retrapped indicate that males have larger home ranges than those of females, which in concert with multiple intra- and intersexual range overlap indicates a promiscuous mating system. In contrast to the other 2 species, Microcebus berthae maintained specific habitat utilization patterns at 2 sites with different vegetation structures. Their habitat use in relation to vegetation characteristics differed from that of Cheirogaleus medius but not from that of Microcebus murinus. Co-occurrence patterns of Microcebus berthae and M. murinus deviated significantly from random and resembled a checkerboard distribution possibly generated by competitive exclusion. Thus, according to the niche concept, Microcebus berthae seem to be separated from Cheirogaleus medius by differences in food composition and habitat requirements, while they avoid direct competition with M. murinus by spatial separation.
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References
Atsalis, S., Schmid, J., and Kappeler, P. M. (1996). Metrical comparison of three species of mouse lemur. J. Hum. Evol. 31: 61-68.
Connor, E. F., and Simberloff, D. S. (1979). The assembly of species communities: chance or competition? Ecology 60: 1132-1140.
Dausmann, K. H., Ganzhorn, J. U., and Heldmaier, G. (2000). Body temperature and metabolic rate of a hibernating primate in Madagascar: Preliminary results from a field study. In Heldmaier, G., and Klingenspor, M. (eds.), Life in the Cold. Eleventh International Hibernation Symposium. Springer, Berlin, pp. 41-47.
Diamond, J. M. (1975). Assembly of species communities. In Cody, M. L., and Diamond, J. M. (eds.), Ecology and Evolution of Communities, Belknap, Cambridge, MA, pp. 342-444.
Eberle, M., and Kappeler, P. M. (2002). Mouse lemurs in space and time: A test of the socioecological model. Behav. Ecol. Sociobiol. 51: 131-139.
Eisenberg, J. F., O'Connell, M., and August, P. V. (1979). Density, productivity, and distribution of mammals in two Venezuelan habitats. In Eisenberg, J. F. (ed.), Vertebrate Ecology in the Northern Neotropics, Smithsonian Institition Press, Washington, pp. 187-207.
Fietz, J. (1995). Paarungs-und Sozialsystem von Microcebus murinus (J.F. Miller 1777). Diploma Thesis. Biologie, Universität Tübingen.
Fietz, J. (1998). Body mass in wild Microcebus murinus over the dry season. Folia Primatol. 69(Suppl. 1): 183-190.
Fietz, J. (1999a). On the mating system of Microcebus murinus. Am. J. Primatol. 48: 127-133.
Fietz, J. (1999b). Demography and floating males in a population of Cheirogaleus medius. In Rakotosamimanana, B., Rasamimanana, H., Ganzhorn, J. U., and Goodman, S. M. (eds.), New Directions in Lemur Studies, Kluwer, London, pp. 159-172.
Fietz, J. (1999c). Monogamy as a rule rather than exception in nocturnal lemurs: The case of Cheirogaleus medius. Ethology 105: 259-272.
Fietz, J., and Ganzhorn, J. U. (1999). Feeding ecology of a hibernating primate Cheirogaleus medius: Or how do they get so fat. Oecologia 121: 157-164.
Fietz, J., Zischler, H., Schwiegk, C., Tomiuk, J., Dausmann, K., and Ganzhorn, J. U. (2000). High rates of extra-pair young in the pair-living fat-tailed dwarf lemur, Cheirogaleus medius. Behav. Ecol. Sociobiol. 49: 8-17.
Ganzhorn, J. U. (2003). Effects of introduced Rattus rattus on endemic small mammals in dry deciduous forest fragments of western Madagascar. Anim. Cons. 6: 147-157.
Ganzhorn, J. U., and Sorg, J.-P. eds. (1996). Ecology and Economy of a Tropical Dry Forest, Primate Report, Vol. 46–1, Special Volume, Göttingen.
Ganzhorn, J. U., Ganzhorn, A. W., Abraham, J. P., Andriamanarivo, L., and Ramananjatovo, A. (1990). The impact of selective logging on forest structure and tenrec populations in western Madagascar. Oecologia 84: 126-133.
Ganzhorn, J. U., Fietz, J., Rakotovao, E., Schwab, D., and Zinner, D. (1999a). Lemurs and the regeneration of dry deciduous forest in Madagascar. Cons. Biol. 13: 794-804.
Ganzhorn, J. U., Wright, P. C., and Ratsimbazafy, J. (1999b). Primate communities: Madagascar. In Fleagle, J. G., Janson, C., and Reed, K. E. (eds.), Primate Communities, Cambridge University Press, Cambridge, UC0, pp. 75-89.
Ganzhorn, J. U., Goodman, S. M., Nash, S., and Thalmann, U. (in press). Lemur biogeography. In Fleagle, J., and Lehmann, S. (eds.), Primate Biogeography.
Hladik, C. M., Charles-Dominique, P., and Petter, J. J. (1980). Feeding strategies of five nocturnal prosimians in the dry forest of the west coast of Madagascar. In Charles-Dominique, P., Cooper, H. M., Hladik, A., Hladik, C. M., Pages, E., Pariente, G. F., Petter-Rousseaux, A., Petter, J. J., and Schilling, A. (eds.), Nocturnal Malagasy Primates, Academic Press, New York, pp. 41-73.
IUCN (2001). IUCN 1996 Red List of Threatened Animals, IUCN—The World Conservation Union, Gland.
Mittermeier, R. A., Ganzhorn, J. U., Konstant, W. R., Glander, K. E., Tattersall, I., Mayor, M., and Louis, E. E. (in preparation). Lemur diversity in Madagascar. Int. J. Primatol.
Müller, A. E. (1999a). Aspects of social life in the fat-tailed Dwarf Lemur (Cheirogaleus medius): Inferences from body weights and trapping data. Am. J. Primatol. 49: 265-280.
Müller, A. E. (1999b). Social organization of the Fat-tailed Dwarf Lemur (Cheirogaleus medius) in northwestern Madagascar. In Rakotosamimanana, B., Rasamimanana, H., Ganzhorn, J. U., and Goodman, S. M. (eds.), New Directions in Lemur Studies, Kluwer, London.
Pastorini, J., Martin, R. D., Ehresmann, P., Zimmermann, E., and Forstner, M. R. J. (2001). Molecular phylogeny of the lemur family Cheirogaleidae (Primates) based on mitochondrial DNA sequences. Mol. Phyl. Evol. 19: 45-56.
Pastorini, J., Thalmann, U., and Martin, R. D. (2003). A molecular approach to comparative phylogeography of extant Malagasy lemurs. Proc. Natl. Acad. Sci. U.S.A. 100: 5879-5884.
Petter, J. J., Albignac, R., and Rumpler, Y. (eds.) (1977). Faune de Madagascar: Mammifères Lémuriens, Vol. 44, ORSTOM CNRS, Paris.
Prins, H. H. T., and Reitsma, J. M. (1989). Mammalian biomass in an African equatorial rain forest. J. Anim. Ecol. 58: 851-861.
Radespiel, U., Ehresmann, P., and Zimmermann, E. (2001a). Contest versus scramble competition for mates: The composition and spatial structure of a population of Gray mouse lemurs (Microcebus murinus) in North-west Madagascar. Primates 42: 207-220.
Radespiel, U., Sarikaya, Z., Zimmermann, E., and Bruford, M. W. (2001b). Sociogenetic structure in a free-living nocturnal primate population: Sex-specific differences in the gry mouse lemur (Microcebus murinus). Behav. Ecol. Sociobiol. 50: 493-502.
Rasoloarison, R. M., Goodman, S. M., and Ganzhorn, J. U. (2000). A taxonomic revision of mouse lemurs (Microcebus) occuring in the western portions of Madagascar. Int. J. Primatol. 21: 963-1019.
Rendigs, A., Radespiel, U., Wrogemann, D., and Zimmermann, E. (2003). Relationship between microhabitat structure and distribution in mouse lemurs (Microcebus spp.) of northwestern Madagascar. Int. J. Primatol. 24: 47-64.
Rumpler, Y., Ganzhorn, J. U., Tomiuk, J., Leipoldt, M., and Warter, S. (1998). A cytogenetic study of Microcebus myoxinus. Folia Primatol. 69: 307-311.
Rylands, A. B., Mittermeier, R. A., and Konstant, W. R. (2002). Species and subspecies of primates described since 1990. Lemur News 7: 5-6.
Schmelting, B., Ehresmann, P., Lutermann, H., Randrianambinina, B., and Zimmermann, E. (2000). Reproduction of two sympatric Mouse Lemur species (Microcebus murinus and M. ravelobensis) in north-west Madagascar: First results of a long term study. In Lourenço, W. R., and Goodman, S. M. (eds.), Diversité et Endemisme à Madagascar. Mémoires de la Société de Biogéographie, Paris, pp. 165-175.
Schmid, J. (2000). Daily torpor in the gray mouse lemur (Microcebus murinus) in Madagascar: Energetic consequences and biological significance. Oecologia 123: 175-183.
Schmid, J., and Kappeler, P. M. (1994). Sympatric Mouse lemurs (Microcebus spp.) in western Madagascar. Folia Primatol. 63: 162-170.
Schmid, J., and Kappeler, P. M. (1998). Fluctuating sexual dimorphism and differential hibernation by sex in a primate, the gray mouse lemur (Microcebus murinus). Behav. Ecol. Sociobiol. 43: 125-132.
Schmid, J., Ruf, T., and Heldmaier, G. (2000). Metabolism and temperature regulation during daily torpor in the smallest primate, the pygmy mouse lemur (Microcebus myoxinus) in Madagascar. J. Comp. Physiol. B 170: 59-68.
Schwab, D. (2000a). A preliminary study of spatial distribution and mating system of Pygmy Mouse Lemurs (Microcebus cf myoxinus). Am. J. Primatol. 51: 41-60.
Schwab, D. (2000b). Erratum. Am. J. Primatol. 51: 216.
Smith, A. P. (1997). Deforestation, fragmentation, and reserve design in western Madagascar. In Laurance, W. F., and Bierregaard, R. O. (eds.), Tropical Forest Remnants, Ecology, Management and Conservation of Fragmented Communities, The University of Chicago Press, Chicago, pp. 415-441.
Sommer, S., Toto Volahy, A., and Seal, U. S. (2002a). A population and habitat viability assessment for the highly endangered Giant Jumping Rat (Hypogeomys antimena), the largest endemic rodent of Madagascar. Anim. Cons. 5: 263-273.
Sommer, S., Schwab, D., and Ganzhorn, J. U. (2002b). MHC diversity of Malagasy rodents in relation to range contraction and social system. Behav. Ecol. Sociobiol. 51: 214-221.
SPSS. (1999). SPSS Base 9.0 User's Guide, SPSS Inc., Chicago.
Sterck, E. H. M., Watts, D. P., and van Schaik, C. P. (1997). The evolution of female social relationships in nonhuman primates. Behav. Ecol. Sociobiol. 41: 291-309.
Strong, D. R. J., Simberloff, D., Abele, L. G., and Thistle, A. B. (eds.) (1984). Ecological communities: conceptual issues and the evidence, Princeton University Press, Princeton, NP0.
Sussman, R. W. (1999). Primate Ecology and Social Structure, Vol. 1, Pearson Custom Publishing, Needham HP0.
Thalmann, U., and Rakotoarison, N. (1994). Distribution of lemurs in central western Madagascar, with a regional distribution hypothesis. Folia Primatol. 63: 156-161.
Tidd, S. T., Pinder, J. E., and Ferguson, G. W. (2001). Deforestation and habitat loss for the Malagasy flat-tailed tortoise from 1963 through 1993. Chelonian Conserv. Biol. 4: 59-65.
Yoder, A. D., Rasoloarison, R. M., Goodman, S. M., Irwin, J. A., Atsalis, S., Ravosa, S., and Ganzhorn, J. U. (2000). Remarkable species diversity in Malagasy mouse lemurs (Primates, Microcebus). Proc. Natl. Acad. Sci. U.S.A. 97: 11325-11330.
Yoder, A. D., Burns, M. M., and Génin, F. (2002). Molecular evidence of reproductive isolation in sympatric sibling species of mouse lemurs. Int. J. Primatol. 23: 1335-1343.
Zimmermann, E., Cepok, S., Rakotoarison, N., Zietemann, V., and Radespiel, U. (1998). Sympatric mouse lemurs in north-west Madagascar: A new Rufous mouse lemur species (Microcebus ravelobensis). Folia Primatol. 69: 106-114.
Zinner, D., Ostner, J., Dill, A., Razafimanantsoa, L., and Rasoloarison, R. (2001). Results of a reconnaissance expedition in the western dry forests between Morondava and Morombe. Lemur News 6: 16-18.
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Schwab, D., Ganzhorn, J.U. Distribution, Population Structure and Habitat Use of Microcebus berthae Compared to Those of Other Sympatric Cheirogalids. International Journal of Primatology 25, 307–330 (2004). https://doi.org/10.1023/B:IJOP.0000019154.17401.90
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DOI: https://doi.org/10.1023/B:IJOP.0000019154.17401.90