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No. de sistema: 000006874

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008 _ _ 150924m20159999enk^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| f-ug---
044 _ _ a| enk
245 0 0 a| Competing pressures on populations
b| long-term dynamics of food availability, food quality, disease, stress and animal abundance
506 _ _ a| Acceso electrónico sólo para usuarios de ECOSUR
520 1 _ a| Despite strong links between sociality and fitness that ultimately affect the size of animal populations, the particular social and ecological factors that lead to endangerment are not well understood. Here, we synthesize approximately 25 years of data and present new analyses that highlight dynamics in forest composition, food availability, the nutritional quality of food, disease, physiological stress and population size of endangered folivorous red colobus monkeys (Procolobus rufomitratus). There is a decline in the quality of leaves 15 and 30 years following two previous studies in an undisturbed area of forest. The consumption of a low-quality diet in one month was associated with higher glucocorticoid levels in the subsequent month and stress levels in groups living in degraded forest fragments where diet was poor was more than twice those in forest groups. In contrast, forest composition has changed and when red colobus food availability was weighted by the protein-to-fibre ratio, which we have shown positively predicts folivore biomass, there was an increase in the availability of high-quality trees. Despite these changing social and ecological factors, the abundance of red colobus has remained stable, possibly through a combination of increasing group size and behavioural flexibility.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Procolobus rufomitratus
650 _ 4 a| Hábitos alimentarios
650 _ 4 a| Fragmentación de hábitats
650 _ 4 a| Enfermedades transmisibles
650 _ 4 a| Densidad de población
651 _ 4 a| Parque Nacional Kibale (Uganda)
700 1 _ a| Chapman, Colin A.
700 1 _ a| Schoof, Valérie A. M.
e| coaut.
700 1 _ a| Bonnell, Tyler R.
e| coaut.
700 1 _ a| Gogarten, Jan F.
e| coaut.
700 1 _ a| Calmé, Sophie
c| Doctora
e| coaut.
773 0 _
t| Philosophical Transactions of the Royal Society B. Biological Sciences
g| Vol. 370, no. 1669 (May 2015), p. 1-9
x| 1471-2970
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Septiembre 2015
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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Competing pressures on populations: long-term dynamics of food availability, food quality, disease, stress and animal abundance
Chapman, Colin A. (autor)
Schoof, Valérie A. M. (autor)
Bonnell, Tyler R. (autor)
Gogarten, Jan F. (autor)
Calmé, Sophie (autor)
Nota: Acceso electrónico sólo para usuarios de ECOSUR
Contenido en: Philosophical Transactions of the Royal Society B. Biological Sciences. Vol. 370, no. 1669 (May 2015), p. 1-9. ISSN: 1471-2970
No. de sistema: 6874
Tipo: - Artículo con arbitraje
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Inglés

"Despite strong links between sociality and fitness that ultimately affect the size of animal populations, the particular social and ecological factors that lead to endangerment are not well understood. Here, we synthesize approximately 25 years of data and present new analyses that highlight dynamics in forest composition, food availability, the nutritional quality of food, disease, physiological stress and population size of endangered folivorous red colobus monkeys (Procolobus rufomitratus). There is a decline in the quality of leaves 15 and 30 years following two previous studies in an undisturbed area of forest. The consumption of a low-quality diet in one month was associated with higher glucocorticoid levels in the subsequent month and stress levels in groups living in degraded forest fragments where diet was poor was more than twice those in forest groups. In contrast, forest composition has changed and when red colobus food availability was weighted by the protein-to-fibre ratio, which we have shown positively predicts folivore biomass, there was an increase in the availability of high-quality trees. Despite these changing social and ecological factors, the abundance of red colobus has remained stable, possibly through a combination of increasing group size and behavioural flexibility."


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