Home Range Size and Habitat use by Cat Ba Langurs (Trachypithecus poliocephalus) in a Disturbed and Fragmented Habitat

Hendershott, Rebecca; Rawson, Benjamin M.; Behie, Alison

doi:10.1007/s10764-018-0051-9

Cited by 11 publications

(13 citation statements)

References 52 publications

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“…The third and fourth behaviors in this hierarchy were grooming and resting, respectively. Like other limestone langurs (Hendershott, Rawson, & Behie, 2018; Liu et al, 2004; Workman, 2010), langurs were hidden around mid‐day, though their locations were confirmed. The observations were not conducted during this time in some studies (Hendershott et al, 2018; Liu et al, 2004).…”

Section: Methodsmentioning

confidence: 77%

“…Like other limestone langurs (Hendershott, Rawson, & Behie, 2018; Liu et al, 2004; Workman, 2010), langurs were hidden around mid‐day, though their locations were confirmed. The observations were not conducted during this time in some studies (Hendershott et al, 2018; Liu et al, 2004). While other studies conducted the behavioral observation when the location of langurs could be confirmed and inferred that animals were considered to be resting when they hid in vegetation (Huang, Wei, et al, 2003; Zhou, Huang, & Fan, 2001), the vegetation in these types of habitat tends to be dominated by shrubs and tree saplings, with branches generally not being able to support several animals grooming each other, or shake strongly.…”

Section: Methodsmentioning

confidence: 77%

“…The last support category was plant branch. However, owing to the special topographic feature of limestone habitat, it is possible for a langur to be on rock under dense tree crown (Hendershott et al, 2018). Thus, if langurs used rocks or grass/soil covered by vegetation or ledge, we recoded it as “shade.” Based on the fact that primates seek shade as an important microhabitat to avoid direct sunlight during warm days (Abreu et al, 2016; Duncan & Pillay, 2013), we lumped “shade” and branch use together for further analysis.…”

Section: Methodsmentioning

confidence: 99%

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Behavioral adjustments and support use of François' langur in limestone habitat in Fusui, China: Implications for behavioral thermoregulation

Huang

2020

Ecology and Evolution

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Climatic factors such as temperature and humidity vary seasonally in primate habitats; thus, behavioral adjustments and microhabitat selection by primate species have been interpreted as behavioral adaptations. François' langur (Trachypithecus francoisi), a native species to southwest China and northern Vietnam, inhabits a limestone habitat with extreme climatic conditions. To understand the potential effects of climatic seasonality on this species, we collected data on the individual behavioral budgets in a T. francoisi group between January and December 2010 in Fusui County, China. Monthly, we performed 5–11 days of observation during this period, using focal animal sampling and continuous recording methods. We also recorded ambient temperature (Ta) and relative humidity (Hr) data at our study site. Results indicated that Ta and Hr were significantly correlated with each other and fluctuated dramatically on a daily, monthly, and seasonal basis. The amount of time spent resting, grooming, basking, and huddling also varied on a daily, monthly, and seasonal basis. The proportion of resting time and total sedentary activity time significantly increased at high and low Tas, respectively. The total sedentary time, resting time, and plant branch use all showed positive significant correlations with Ta. Our results suggest that behavioral adjustment and support use of T. francoisi, at least partly, were related to thermoregulation. T. francoisi minimized thermal stress through behavioral adjustments and support use. It is an adaptive behavior associated with the climatic extremes of limestone habitat. This study can potentially advise conservation management strategies in this specific habitat. Conservation efforts should focus on vegetation restoration in langurs' habitat, including those in the foothills.

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Section: Methodsmentioning

confidence: 77%

Section: Methodsmentioning

confidence: 77%

Section: Methodsmentioning

confidence: 99%

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Behavioral adjustments and support use of François' langur in limestone habitat in Fusui, China: Implications for behavioral thermoregulation

Huang

2020

Ecology and Evolution

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“…Intraspecific differences are particularly evident in home range size, daily path length, diet, and habitat use (e.g., guerezas, Potts et al 2011). Many taxa exhibit seasonal variation in ranging patterns, habitat use, and diet within the same groups (e.g., olive baboons, Papio anubis: Barton et al 1992; white-headed langur, Trachypithecus poliocephalus: Hendershott et al 2018; northern pig-tailed macaques: Gazagne et al 2020;chimpanzees: Chancellor et al 2012). The spatiotemporal availability of food resources influences feeding strategies and habitat use (Fan and Jiang 2008;Tutin et al 1997;Wallace 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Feeding strategies and habitat use are closely related to each other, and during periods of fruit scarcity, a group's home range may be smaller and primates may consume fallback foods. Alternatively, a group may extend its home range to meet resource needs (Hendershott et al 2018;Schoener 1971;van Schaik and Brockman 2005). In fragmented environments, forest patch size can positively influence home range size, but the effect of habitat fragmentation on home range size differs greatly according to the matrix configuration and a species' ability to travel between forest patches (e.g., Bicca-Marques 2003;Boyle et al 2013;Irwin 2008;Onderdonk and Chapman 2000;Tutin 1999).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variation in Bonobo (Pan paniscus) Habitat Use in a Forest–Savanna Mosaic

et al. 2020

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Understanding the ecological and behavioral variation of primates is central to improving conservation strategies. Studies of chimpanzees (Pan troglodytes) have shown marked behavioral variability across a wide range of habitats. By comparison, bonobos (Pan paniscus) occur mainly in continuous forest sites, and socioecological models explaining behavioral differences between the two species are based on the assumption that bonobo habitat is richer and more stable than chimpanzee habitats. The objective of this study was to assess bonobo ecology in a forest-savanna mosaic. We specifically explored 1) bonobo home range size, habitat use, and dietary composition; 2) forest fragmentation in a bonobo community's home range; and 3) seasonality of dietary diversity, habitat use, and spatial distribution. Using 2 years of observational data on location, habitat type, and dietary composition, we found that the bonobo community's home range size, density, and dietary diversity were similar to those observed in continuous forest sites. Bonobos used areas with lower forest fragmentation than the surrounding areas and preferentially spent time in forested habitats. During the dry season, bonobos consumed a lower diversity of fruit species, spent more time in sparse forest with Marantaceae understory, and were closer to the seasonal center of their home range than during the rainy season. Our results contribute to our understanding of behavioral variation in bonobos and suggest that forest-savanna mosaic is valuable to bonobo conservation. Keywords Democratic Republic of the Congo . Forest fragmentation . Habitat use . Home range . Pan paniscus . Spatial analyses

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Habitat use of the white‐headed langurs in limestone forest of Southwest Guangxi, China: Seasonality and group size effects

Liu

Zhang

et al. 2022

Ecology and Evolution

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Understanding how animals cope with habitat‐specific environmental factors can assist in species conservation management. We studied the habitat use of four groups (two large and two small groups) of white‐headed langurs (Trachypithecus leucocephalus) living in the forest of southwest Guangxi, China between September 2016 and February 2017 via instantaneous scan sampling. Our results showed that the langurs primarily used hillsides (55.91% ± 6.47%), followed by cliffs (29.70% ± 5.48%), hilltops (7.26% ± 3.55%), flat zones (6.99% ± 6.58%), and farmlands (0.14% ± 0.28%). The langurs moved most frequently on hillsides (49.35% ± 6.97%) and cliffs (35.60% ± 9.17%). The hillsides were more frequently used (66.94% ± 7.86%) during feeding, and the langurs increased the use of hilltops during the rainy season, and the use of cliffs in the dry season. The langurs frequently rested on hillsides (49.75% ± 8.16%) and cliffs (38.93% ± 8.02%). The larger langur group used cliffs more frequently when moving and resting, whereas the small langur group used hillsides more frequently while resting. Langurs in all groups avoided the flat zones for feeding. Their use of habitat reflected the balancing of foraging needs, thermoregulation, and predator avoidance. We conclude that the ecological factors are determinants of habitat use for white‐headed langurs. Our findings suggest that conservation efforts should focus on protecting the vegetation on the hillsides and restoring the vegetation on the flat zones.

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Home Range Size and Habitat use by Cat Ba Langurs (Trachypithecus poliocephalus) in a Disturbed and Fragmented Habitat

Cited by 11 publications

References 52 publications

Behavioral adjustments and support use of François' langur in limestone habitat in Fusui, China: Implications for behavioral thermoregulation

Behavioral adjustments and support use of François' langur in limestone habitat in Fusui, China: Implications for behavioral thermoregulation

Spatiotemporal Variation in Bonobo (Pan paniscus) Habitat Use in a Forest–Savanna Mosaic

Habitat use of the white‐headed langurs in limestone forest of Southwest Guangxi, China: Seasonality and group size effects

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