| primate community of the tropical rain forests of saracá-taqüera national forest, pará, brazil. | brazil is the richest country in the world in terms of primate species and the amazonian rain forest is one of the richest biomes containing 15 (ca. 90%) of the neotropical primate genera. although considered key elements in conservation strategies, there is only anecdotal information on primates for several protected areas within the region. here we present new data on the community composition of the primates in the saracá-taqüera national forest (429,600 ha), an actively mined, bauxite rich a ... | 2009 | 19967179 |
| edge effects in the primate community of the biological dynamics of forest fragments project, amazonas, brazil. | while much is known about abiotic and vegetative edge effects in tropical forests, considerably less is known about the impact of forest edges on large mammals. in this study, we examine edge effects in a primate community to determine: 1) the distance from the edge over which edge effects in primate density are detectable, 2) whether individual species exhibit edge effects in their density, and 3) whether biological characteristics can be used to predict primate presence in edge habitats. given ... | 2014 | 25130367 |
| how do rivers, geographic distance, and dispersal behavior influence genetic structure in two sympatric new world monkeys? | dispersal, one of the major factors affecting the gene flow between populations, shapes the spatial distribution of genetic diversity within species. alouatta macconnelli and saguinus midas are two neotropical monkey species that sympatrically inhabit the guiana shield in northern amazonia and are likely to differ in their dispersal behavior and vagility. we took advantage of their sympatry to investigate, over a fine geographical scale (∼50 km long), the relationship between spatial genetic str ... | 2017 | 28346698 |
| response of frugivorous primates to changes in fruit supply in a northern amazonian forest. | few attempts have been made to understand how spatiotemporal changes in fruit supply influence frugivores in tropical forests. the marked spatiotemporal variation in fruit supply can affect frugivore abundance and distribution, but studies addressing the effects of this variation on primates are scarce. the present study aimed to investigate how the spatiotemporal distribution of fruits influences the local distribution of three frugivorous primates in the eastern part of the maracá ecological s ... | 2014 | 25296224 |
| molecular systematics and biogeography of the neotropical monkey genus, alouatta. | we take advantage of the broad distribution of howler monkeys from mexico to argentina to provide a historical biogeographical analysis on a regional scale that encompasses the entire neotropics. the phylogenetic relationships among 9 of the 10 recognized alouatta species were inferred using three mitochondrial and two nuclear genes. the nuclear gene regions provided no phylogenetic resolution among howler monkey species, and were characterized by very low levels of sequence divergence between a ... | 2003 | 12470939 |
| monkeys of the rainforest in french guiana are natural reservoirs for p. brasilianum/p. malariae malaria. | monkey blood samples were collected from 214 monkeys relocated as part of the wildlife rescue organized in french guiana during the filling of the petit saut dam on the sinnamary river. these samples were tested for malaria parasites by microscopy of thick blood filsm and by nested pcr for small subunit rrna genes (ssurrna). parasitic blood forms similar to plasmodium brasilianum were detected in 4 monkey species: alouatta seniculus macconnelli, saguinus midas midas, pithecia pithecia and ateles ... | 2000 | 10726261 |