@article {1312,
	title = {Seed dispersal by monkeys and the fate of dispersed seeds in a Peruvian rain forest},
	journal = {Biotropica},
	volume = {31},
	number = {1},
	year = {1999},
	month = {Mar},
	pages = {145-158},
	keywords = {Alouatta, Ateles, Dung beetles, secondary dispersal, seed dispersal, seed fate, seed predation},
	url = {<Go to ISI>://000079672600014},
	author = {Andresen, Ellen}
}
@article {1316,
	title = {Primary seed dispersal by red howler monkeys and the effect of defecation patterns on the fate of dispersed seeds},
	journal = {Biotropica},
	volume = {34},
	number = {2},
	year = {2002},
	note = {569EEBIOTROPICA},
	month = {Jun},
	pages = {261-272},
	abstract = {The effectiveness of a seed disperser depends on the quantity and quality of dispersal. The quality of dispersal depends in large part on factors that affect the post-dispersal fate of seeds, and yet this aspect of dispersal quality is rarely assessed. In the particular case of seed dispersal through endozoochory the defecation pattern produced has the potential of affecting the fate of dispersed seeds and consequently, dispersal quality and effectiveness. In this study, I assessed the effects of dung presence and dung/seed densities on seed predation by rodents and seconclary dispersal by dung beetles. In particular, I compared seed fates in clumped defecation patterns, as those produced by howler monkeys, with seed faces in scattered defecation patterns, as those produced by other frugivores. I also determined the prevalence of red howler monkeys (Alouatta seniculus) as seed dispersers at the plant community level in Central Amazonia by determining the number of species they dispersed in a 25-month period. I found chat dung presence and a-mount affected rodent and dung beetle behavior. Seed predation rates were higher when dung was present, and when it was in higher densities. The same number of seeds was buried by dung beetles, in clumped versus scattered defecation patterns, but more seeds were buried when they were inside large dung-piles versus small piles. Seed density had no effect on rodent or dung beetle behavior. Results indicate that caution should be taken when categorizing an animal as a high or low quality seed disperser before carefully examining the factors that affect the fate of dispersed seeds. Red howler monkeys dispersed the seeds of 137 species during the study period, which is the highest yet reported number for an Alouatta species, and should thus be considered highly prevalent seed dispersers at the plant community level in Central Amazonian terra firme rain forests.},
	keywords = {Alouatta, alouatta-palliata, Central Amazonia, defecation pattern, dispersal, Dung beetles, dung beetles scarabaeidae, howler monkeys, los, postdispersal, primary seed dispersal, secondary seed, seed, seed fate, tropical moist forest, tropical rain-forest},
	url = {<Go to ISI>://000176587000008},
	author = {Andresen, Ellen}
}
@article {2220,
	title = {Rapid turnover and edge effects in dung beetle assemblages (Scarabaeidae) at a Bolivian Neotropical forest-savanna ecotone},
	journal = {Biotropica},
	volume = {35},
	number = {3},
	year = {2003},
	note = {744QYBIOTROPICA},
	month = {Sep},
	pages = {394-404},
	abstract = {Habitat fragmentation and the widespread creation of habitat edges have recently stimulated interest in assessing the effects of ecotones on biodiversity. Ecotones, natural or anthropogenic, can greatly affect faunal movement, population dynamics, species interactions, and community structure. Few data exist, however, on insect community response to forest- savanna ecotones, a natural analog to anthropogenically cleared areas adjacent to forest. In this study, the abundance, total biomass, average individual biomass, and distribution of scarabaeine dung beetles were examined at a sharp tropical evergreen forest-savanna ecotone in Santa Cruz, Bolivia. The abundance, total biomass, and average individual biomass of dung beetles varied significantly across the forest, edge, and savanna habitats. Species richness (S-obs) also varied significantly across the three habitats, but statistical estimations of true species richness (S-est) did not. Habitat specificity of the dung beetles in this study was extremely high. Of the 50 most common species collected during the study, only 2 species were collected in both the forest and savanna habitats, signaling nearly complete community turnover in just a few meters. Strong edge effects were evidenced by the decline in abundance, total biomass, and species richness at the forest-savanna boundary.},
	keywords = {beta diversity, Bolivia, boundaries, Central Amazonia, COLEOPTERA, communities, conservation, Dung beetles, dynamics, ecotone, edge, fragmented forests, gradients, patterns, responses, savanna, tropical forest},
	url = {<Go to ISI>://000186644700009},
	author = {Spector, S. and Ayzama, S.}
}
