Responses of wild titi monkeys, Callicebus coimbrai (Primates: Platyrrhini: Pitheciidae), to the habituation process

Souza‐Alves, João Pedro; Ferrari, Stephen F.

doi:10.1590/s1984-46702010000600004

Cited by 17 publications

(14 citation statements)

References 20 publications

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“…CUNHA et al 2006), and a preference for the lower levels in the forest has been recorded in a number of studies of Callicebus (KINZEY 1981, PALACIOS et al 1997, FERRARI et al 2000. SOUZA-ALVES & FERRARI (2010) also recorded the use of relatively low levels in the forest (below 10 m) in an ecological study of C. coimbrai at the Fazenda Trapsa.…”

Section: Callicebus Coimbraimentioning

confidence: 97%

Habitat use by Callicebus coimbrai (Primates: Pitheciidae) and sympatric species in the fragmented landscape of the Atlantic Forest of southern Sergipe, Brazil

Chagas¹,

Ferrari²

2010

Zoologia (Curitiba, Impr.)

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Anthropogenic habitat fragmentation is a chronic problem throughout the Brazilian Atlantic Forest biome. In the present study, four forest fragments of 60-120 ha were surveyed on a rural property in southern Sergipe, where two endangered primate species, Callicebus coimbrai Kobayashi & Langguth, 1999 and Cebus xanthosternos Wied-Neuwied, 1826, are found. Two transects were established in each fragment, and the predominant habitat in 50 m sectors was assigned to one of three categories (mature forest, secondary forest and anthropogenic forest). Standard line transect surveys of the resident primate populations - which included a third species, Callitrhix jacchus Linnaeus, 1758 - were conducted, with a total of 476 km walked transect, resulting in 164 primate sightings. At each sighting of a primate, the habitat class was recorded and the height of the individual above the ground was estimated. The analysis indicated a significant (p < 0.05) preference for mature forest in C. xanthosternos which was also observed more frequently in the larger and better preserved fragments. No clear habitat preference was verified in the other two species, although both were relatively more abundant in the smaller fragments. However, a tendency to avoid anthropogenic forest was observed in C. coimbrai. Callitrhix jacchus used significantly lower (p < 0.05) forest strata than the other species, although other differences were unclear, presumably because of the reduced stature of the forest in the fragments. Overall, the results of the study indicate that C. xanthosternos is tolerant of the effects of habitat fragmentation, and that differential habitat use may play an important role in niche partitioning

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Section: Callicebus Coimbraimentioning

confidence: 97%

Habitat use by Callicebus coimbrai (Primates: Pitheciidae) and sympatric species in the fragmented landscape of the Atlantic Forest of southern Sergipe, Brazil

Chagas¹,

Ferrari²

2010

Zoologia (Curitiba, Impr.)

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“…The study site was a 14.4 ha fragment of lowland semideciduous seasonal tropical forest [Thomas & Barbosa, 2010] Souza-Alves & Ferrari, 2010] (Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

“…The study group originally consisted of an adult pair, a subadult male, and a juvenile, which were fully habituated [Souza-Alves & Ferrari, 2010] to the Heiduck, 2002;Palacios et al, 1997]. The study group was monitored from dawn to dusk on four or five consecutive days each month between July 2009 and June 2010, with a total of 58 days (550 hr) of observation.…”

Section: Methodsmentioning

confidence: 99%

Seasonal versatility in the feeding ecology of a group of titis (Callicebus coimbrai) in the northern Brazilian Atlantic Forest

Souza‐Alves

Fontes

Chagas

et al. 2011

American J Primatol

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The feeding behavior of a group of titis (Callicebus coimbrai) was monitored over an annual cycle at a site in northeastern Brazil. Behavioral data were collected in scan samples (1-min scan at 5-min intervals), and complementary data on fruit availability and new leaf cover were collected. Feeding time accounted for 28.9% of daily activity. Fruit was the principal item of the diet (61.2% of records) and the primary category in all months except September, when it was surpassed by leaves. Young leaves were the second most important category (20.0%). The consumption of seeds and insects was prominent in November and December. Fifty-two plant species were exploited, and the Elaeocarpaceae, Myrtaceae, Sapotaceae, and Passifloraceae provided the vast majority (86.0%) of plant feeding records. The phenological record did not provide a good measure of fruit availability, but a strong correlation (r(s) =0.902, P<0.0001, n=12) was found between the consumption of leaves and the exploitation of lianas each month. Lianas accounted for 28.2% of plant feeding records, and predominated between August and December. This suggests that lianas may represent a key factor in the ability of the species to tolerate the intense habitat fragmentation found throughout its geographic range.

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“…We collected faecal samples from five squirrel monkey groups (60 individuals, SD = 45) monitored between May and September 2016 (10 days/month) after the habituation process based on intensive pursuit [Souza-Alves and Ferrari, 2010] (October to December, 2015). We monitored the individuals from dawn (05.00 h) to dusk (18.00 h), totaling 600 h. We used small wooden scoops to collect the faecal samples and stored them in Falcon tubes containing silica gel to avoid fungal infestation.…”

Section: Faecal Samplingmentioning

confidence: 99%

Can a Non-Native Primate Be a Potential Seed Disperser? A Case Study on Saimiri sciureus in Pernambuco State, Brazil

Oliveira-Silva¹,

Campêlo²,

Lima³

et al. 2018

IJFP

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The interaction between native fleshy-fruit plants and introduced fruit consumers contributes to the dynamics of highly fragmented environments. Such interactions can occur through pollination and seed dispersal. Here, we investigated the potential of seed dispersing by a non-native primate, the squirrel monkey (Saimiri sciureus), in an urban Atlantic forest fragment in north-eastern Brazil. Fleshy fruits from non-native plants were preferentially exploited by the squirrel monkeys. We measured 147 seeds (width and length) from 20 of 106 faecal samples. The dispersed seeds were from five plant species (four families). We found a positive correlation between the size of seeds found in faecal samples with their availability in the habitat. Only one seed was found visually damaged after passage through the squirrel monkeys’ guts. The defecated seeds were uniformly distributed (variance to mean ratio index) in the home range of squirrel monkeys, and there was a lack of specific latrines (i.e., habitat preference for defecation). Our data provide evidence that non-native S. sciureus may in be (i) acting as a potential seed disperser of native plants in the Atlantic forest fragment, (ii) contributing to the ecological role of native frugivores, and (iii) potentially contributing to the regeneration process of the highly degraded study site.

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Responses of wild titi monkeys, Callicebus coimbrai (Primates: Platyrrhini: Pitheciidae), to the habituation process

Cited by 17 publications

References 20 publications

Habitat use by Callicebus coimbrai (Primates: Pitheciidae) and sympatric species in the fragmented landscape of the Atlantic Forest of southern Sergipe, Brazil

Habitat use by Callicebus coimbrai (Primates: Pitheciidae) and sympatric species in the fragmented landscape of the Atlantic Forest of southern Sergipe, Brazil

Seasonal versatility in the feeding ecology of a group of titis (Callicebus coimbrai) in the northern Brazilian Atlantic Forest

Can a Non-Native Primate Be a Potential Seed Disperser? A Case Study on Saimiri sciureus in Pernambuco State, Brazil

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