Wild robust capuchin monkey interactions with sympatric primates

Falótico, Tiago; Mendonça-Furtado, Olívia; Fogaça, Mariana Dutra; Tokuda, Marcos; Ottoni, Eduardo Β.; Verderane, Michele P.

doi:10.1007/s10329-021-00913-x

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…Interactions between gray woolly monkeys and other primates have previously been reported as rare, and the species has only occasionally been observed interacting with other species (Haugaasen & Peres, 2009; Izawa, 1975). We recorded an average of one interaction every 2 h of observation, which is higher than rates recorded for Platyrrhini living in poorer primate assemblages (e.g., Brachyteles hypoxanthus : Dias & Strier, 2000; Alouatta caraya : Fernández et al, 2017), and even for primate species that usually interact (e.g., capuchin monkeys: Falótico et al, 2021; Rose et al, 2003). We suggest that this high frequency of interactions reflects a crowding effect in the two forest fragments, since species with higher sighting rate (see Cavalcante et al, 2018) were often those with higher rates of interaction.…”

Section: Discussionmentioning

confidence: 83%

When partitioning is not an option: Resource availability predicts intraguild interactions in two isolated Amazonian primate assemblages

et al. 2023

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Assemblage structure and acquisition of high-value resources will usually be affected by changes in resource availability and differential competitive abilities of assemblage members. In fragmented habitats where carrying capacity limits are exceeded due to high population densities and biomass, interspecific interactions can be expected to occur at a high frequency, potentially turning into an important cost for coexistence.We studied assemblage-and guild-level patterns of interspecific interactions in two highly diverse isolated primate assemblages in southern Amazonia. Specifically, we assessed the effects of temporal variation in fruit availability on the rates of interspecific interactions between gray woolly monkeys (Lagothrix lagotricha cana), one of the largest tree-dwelling mammals of the Amazon forests, and nine syntopic primate species. We found that fruit availability positively predicted rate of intraguild interactions in contrast to overall assemblage interaction rate. We did not find statistical evidence for the effect of fruit availability on the assemblage rates of type-dependent (i.e., agonistic or non-agonistic) and context-dependent (i.e., feeding or non-feeding) interactions. However, there was a clear trend toward increased feeding-related and agonistic-related interactions as fruit availability increased, with agonistic interactions mostly occurring at guild-level. These results provide support for a significant role of fruit availability in structuring spatial-temporal intraguild interactions at our study sites. Costly interspecific interactions and spatial habitat overlap can be expected to occur at a high frequency in highly diverse assemblages living in human-modified landscapes, which in turn, can have potentially negative impacts to the species involved.

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Section: Discussionmentioning

confidence: 83%

When partitioning is not an option: Resource availability predicts intraguild interactions in two isolated Amazonian primate assemblages

et al. 2023

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The Challenge of Coexistence: Changes in Activity Budget and Ranging Behaviour of Brown Howler Monkeys in Response to the Presence of Conspecifics and Heterospecifics

2023

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Installation and monitoring of a canopy bridge connecting Atlantic Forest fragments containing endangered species in Northeastern Brazil

et al. 2022

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In 2019, a canopy bridge was built connecting two fragments of the Atlantic Forest separated by the Pacatuba unpaved road within the Pacatuba-Gargaú Corridor. This bridge was built as part of the Brazilian National Action Plan for the Conservation of Northeastern Primates (Plano de Ação Nacional para Conservação dos Primatas do Nordeste – PAN PRINE). The forest fragments contain a variety of mammal species, including the endangered primate species Alouatta belzebul and Sapajus flavius. Between September 2019 and March 2020, we monitored the canopy bridge continuously with a Bushnell camera trap; for a total of 204 days of sampling, resulting in evidence of 113 independent passage events. During the monitoring period, four mammal species used the canopy bridge, the Endangered Sapajus flavius (blond capuchin monkey), Callithrix jacchus (common marmoset), Marmosa demerarae (woolly mouse opossum), and Marmosa murina (murine mouse opossum). The common marmoset (Callithrix jacchus) used the bridge most frequently, representing 50.44% of the passage events (57), while the blond capuchin monkey (S. flavius) crossed the bridge in 30 events (26.5% of total crossings). All other mammals used the bridge less frequently than the primates (23% of crossings were of opossums). There was no record of crossings by the red-handed howler monkey (Alouatta belzebul) during the monitoring period. The construction of the canopy bridge within the Pacatuba-Gargaú forest corridor promoted structural and functional connectivity of the forest habitats, affecting the movement of the Endangered blond capuchin monkey and the common marmoset and benefiting other arboreal mammal species. The results indicate that monitoring the use of this canopy bridge provided important insights into the behaviour and ecology of the species studied (e.g., activity patterns, social interactions, group sizes, and reproduction, among many others). In addition, the use of the bridge decreases the risks of animal-vehicle collisions and electrocutions. Considering our results, we strongly recommend constructing and implementing canopy bridges as a strategy for the conservation of arboreal species living in fragmented forest areas.

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Wild robust capuchin monkey interactions with sympatric primates

Cited by 3 publications

References 44 publications

When partitioning is not an option: Resource availability predicts intraguild interactions in two isolated Amazonian primate assemblages

When partitioning is not an option: Resource availability predicts intraguild interactions in two isolated Amazonian primate assemblages

The Challenge of Coexistence: Changes in Activity Budget and Ranging Behaviour of Brown Howler Monkeys in Response to the Presence of Conspecifics and Heterospecifics

Installation and monitoring of a canopy bridge connecting Atlantic Forest fragments containing endangered species in Northeastern Brazil

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