@article {1589,
	title = {Tropical rain forest fragmentation, Howler monkeys (Alouatta palliata), and dung beetles at Los Tuxtlas, Mexico},
	journal = {American Journal of Primatology},
	volume = {48},
	number = {4},
	year = {1999},
	note = {Using Smart Source ParsingArticleEnglish},
	pages = {253-262},
	abstract = {In Neotropical rain forests, fresh mammal dung, especially that of howler monkeys, constitutes an important resource used by dung beetles as food and for oviposition and further feeding by their larvae. Tropical rain forest destruction, fragmentation, and subsequent isolation causing reductions in numbers of and the disappearance of howler moneys may result in decreasing numbers of dung beetles, but this has not been documented. In this study, we present information on the presence of howlers and dung beetles in 38 isolated forest fragments and 15 agricultural habitats. Howler monkeys were censused by visual means, while dung beetles were sampled with traps baited with a mixture of howler, cow, horse, and dog dung. Results indicated that loss of area and isolation of forest fragments result in significant decrements in howlers and dung beetles. However, dung beetle abundance was found to be closely related to the presence of howler monkeys at the sites and habitats investigated. Scenarios of land management designed to reduce isolation among forest fragments may help sustain populations of howler monkeys and dung beetles, which may have positive consequences for rain forest regeneration.},
	keywords = {Alouatta-palliata [howler-mo, Animalia-, Arthropoda-, Cebidae-: Primates-, Chordata-, Coleoptera-: Insecta-, Conservation-, dung-beetle (Coleoptera-), Environmental-Sciences), Invertebrata-, Mammalia-, Terrestrial-Ecology (Ecology-, Vertebrata-},
	author = {Estrada, Alejandro and Anzures D. , A. and Coates-Estrada, Rosamond}
}
@article {1593,
	title = {Dung and carrion beetles in tropical rain forest fragments and agricultural habitats at Los Tuxtlas, Mexico},
	journal = {Journal of Tropical Ecology},
	volume = {14},
	number = {5},
	year = {1998},
	note = {Sept., 1998ArticleEnglish},
	pages = {577-593},
	abstract = {At Los Tuxtlas, Mexico, presence of dung and carrion beetles, were sampled using baited pitfall traps, at the following habitats: isolated forest fragments, forest edges, plantations (coffee, cacao, mixed, citrus and allspice), live fences and pastures. A total of 14,269 beetles representing 36 species were captured. Onthophagus batesi, Canthon femoralis, Canthidium centrale, Copris laeviceps, O. rhinolophus and Deltochilium pseudoparile accounted for 75\% of the captures in the overall sample from 79 sites. Across forest fragments capture rates of species and individuals were associated positively to area and negatively to isolating distance. Rarefaction analysis showed that forest fragments were the most species-rich habitats followed by the mixed and cacao plantations, the forest edge, live fences and coffee, citrus and allspice plantations. Pastures were the least species-rich habitat. Horizontal and vertical diversity of the vegetation at the habitats studied influenced the species richness of dung and carrion beetles and the number of species in common between forest fragments and human-made habitats. A significant relationship existed between the number of non-flying mammals recorded at the study sites and the richness of species and individuals of dung beetles at the habitats investigated. The relevance of this information is discussed in the light of the ecological flexibility of dung and carrion beetle species and of possible conservation scenarios involving landscapes in which isolation of forest fragments is reduced by the presence in open areas of human-made vegetation such as plantations of cacao, coffee, cacao and coffee and live fences.},
	keywords = {Animalia-, Arthropoda-, beetle- (Coleoptera-): carrion-, Canthidium-centrale (Coleoptera-), Canthon-femoralis (Coleoptera-), Coleoptera-: Insecta-, Copris-laeviceps (Coleoptera-, dung-, Environmental-Sciences), Invertebrata-, Terrestrial-Ecology (Ecology-},
	author = {Estrada, Alejandro and Coates-Estrada, Rosamond and Dadda, Alberto Anzures and Cammarano, Pierluigi}
}
