排序方式: 共有3条查询结果,搜索用时 0 毫秒
1
1.
Paulo B. Chaves Tielli Magnus Leandro Jerusalinsky Maurício Talebi Karen B. Strier Paula Breves Fernanda Tabacow Rodrigo H. F. Teixeira Leandro Moreira Robson O. E. Hack Adriana Milagres Alcides Pissinatti Fabiano R. de Melo Cecília Pessutti Srgio L. Mendes Tereza C. Margarido Valria Fagundes Anthony Di Fiore Sandro L. Bonatto 《American journal of primatology》2019,81(12)
The taxonomy of muriquis, the largest extant primates in the New World, is controversial. While some specialists argue for a monotypic genus (Brachyteles arachnoides), others favor a two‐species classification, splitting northern muriquis (Brachyteles hypoxanthus) from southern muriquis (B. arachnoides). This uncertainty affects how we study the differences between these highly endangered and charismatic primates, as well as the design of more effective conservation programs. To address this issue, between 2003 and 2017 we collected over 230 muriqui fecal samples across the genus’ distribution in the Brazilian Atlantic Forest, extracted DNA from these samples, and sequenced 423 base pairs of the mitochondrial DNA (mtDNA) control region. Phylogenetic and species delimitation analyses of our sequence dataset robustly support two reciprocally monophyletic groups corresponding to northern and southern muriquis separated by an average 12.7% genetic distance. The phylogeographic break between these lineages seems to be associated with the Paraíba do Sul River and coincides with the transition between the north and south Atlantic Forest biogeographic zones. Published divergence estimates from whole mitochondrial genomes and nuclear loci date the split between northern and southern muriquis to the Early Pleistocene (ca. 2.0 mya), and our new mtDNA dataset places the coalescence time for each of these two clades near the last interglacial (ca. 120–80 kya). Our results, together with both phenotypic and ecological differences, support recognizing northern and southern muriquis as sister species that should be managed as distinct evolutionarily significant units. Given that only a few thousand muriquis remain in nature, it is imperative that conservation strategies are tailored to protect both species from extinction. 相似文献
2.
ABSTRACT We present data on the spread of terrestrial activities in one group of wild northern muriqui monkeys (Brachyteles hypoxanthus). Both males and females consumed fruit, drank, rested, traveled, and socialized terrestrially, but proportionately more males spent significantly more of their time on the ground than females, and females were more likely to engage in terrestrial activities when accompanied by males than when by themselves. Terrestrial activities occurred in both open and closed habitats where arboreal substrates were available and utilized by other individuals engaged in similar activities. Ecological and demographic factors may have stimulated the muriquis' vertical niche expansion, but increases in the frequency and diversity of terrestrial activities, the high proportion of group members that engage in terrestriality, and its diffusion along male-biased social bonds are consistent with the development of a local terrestrial tradition similar to other types of traditions described in other primates. [Key words: terrestriality, ecology, predation, tradition] 相似文献
3.
Freire Filho Robrio Inforzato Igor Tabacow Fernanda P. Martins Waldney Possamai Carla B. Ferraz Daniel Hack Robson O. E. Rocha Samantha Slomp Daniel V. Nery Marcello S. Almeida Letcia Fernandes Nala Alves Pedro Paulo Rezende Mendes Srgio L. Strier Karen B. 《Primates; journal of primatology》2022,63(4):335-342
Primates - Primate thanatology, or the study of primate responses to dying and death, has become increasingly relevant in recent years. However, the number of reports remains small and the quality... 相似文献
1