Discovery of <scp>M</scp>iller's <scp>G</scp>rizzled <scp>L</scp>angur (<i><scp>P</scp>resbytis hosei canicrus</i>) in <scp>W</scp>ehea <scp>F</scp>orest Confirms the Continued Existence and Extends Known Geographical Range of an Endangered Primate

Lhota, Stanislav; Loken, Brent; Spehar, Stephanie; Fell, Eric M.; Pospěch, Alexandr; Kasyanto, Nunuk

doi:10.1002/ajp.21983

Cited by 9 publications

(7 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Camera traps can record presence/absence of a rare or elusive species (Bezerra et al 2014;Gerber et al 2014), establish habitat requirements (Head et al 2012;Numata et al 2005), and document geographical range (Easton et al 2011). To optimize the likelihood of capturing the focal subject, researchers have used lures (Bezerra et al 2014;Kierulff et al 2004), strategically placed camera traps near critical resources, such as natural canopy bridges (Gregory et al 2013), bamboo zones (Easton et al 2011), and natural licks (Lhota et al 2012). Additional methods of careful and targeted placement are described by Loken et al (2013), Olson et al (2012), and Tan et al (2013).…”

Section: Camera Trap Applicationsmentioning

confidence: 98%

Advancing Primate Research and Conservation Through the Use of Camera Traps: Introduction to the Special Issue

Pebsworth

LaFleur

2014

Int J Primatol

View full text Add to dashboard Cite

Effective conservation and management of primates depend on our ability to accurately assess and monitor populations through research. Camera traps are proving to be useful tools for studying a variety of primate species, in diverse and often difficult habitats. Here, we discuss the use of camera traps in primatology to survey rare species, assess populations, and record behavior. We also discuss methodological considerations for primate studies, including camera trap research design, inherent biases, and some limitations of camera traps. We encourage other primatologists to use transparent and standardized methods, and when appropriate to consider using occupancy framework to account for imperfect detection, and complementary techniques, e.g., transect counts, interviews, behavioral observation, to ensure accuracy of data interpretation. In addition, we address the conservation implications of camera trapping, such as using data to inform industry, garner public support, and contributing photos to large-scale habitat monitoring projects. Camera trap studies such as these are sure to advance research and conservation of primate species. Finally, we provide commentary on the ethical considerations, e.g., photographs of humans and illegal activity, of using camera traps in primate research. We believe ethical considerations will be particularly important in future primate studies, although this topic has not previously been addressed for camera trap use in primatology or any wildlife species.

show abstract

Section: Camera Trap Applicationsmentioning

confidence: 98%

Advancing Primate Research and Conservation Through the Use of Camera Traps: Introduction to the Special Issue

Pebsworth

LaFleur

2014

Int J Primatol

View full text Add to dashboard Cite

show abstract

“…Furthermore, primates are known to use sepans to supplement minerals in their diet by drinking the mineral rich water [Blake et al, 2010;Lhota et al, 2012;Matsubayashi et al, 2007Matsubayashi et al, , 2011. We then analyzed these photographic records to determine how often P. p. morio were photographed relative to other primates on (1) trails and old logging roads, (2) at sepans, and (3) in both areas.…”

Section: Camera Trap Analysismentioning

confidence: 99%

“…We examined the use of trails and roads separately from use of sepans (mineral licks) because sepans are areas largely devoid of trees and primates must descend to the ground to use these areas. Furthermore, primates are known to use sepans to supplement minerals in their diet by drinking the mineral rich water [Blake et al, 2010;Lhota et al, 2012;Matsubayashi et al, 2007Matsubayashi et al, , 2011.…”

Section: Camera Trap Analysismentioning

confidence: 99%

Terrestriality in the bornean orangutan (Pongo pygmaeus morio) and implications for their ecology and conservation

Loken

Spehar

Rayadin

2013

American J Primatol

Self Cite

View full text Add to dashboard Cite

Aside from anecdotal evidence, terrestriality in orangutans (Pongo spp.) has not been quantified or subject to careful study and important questions remain about the extent and contexts of terrestrial behavior. Understanding the factors that influence orangutan terrestriality also has significant implications for their conservation. Here we report on a camera trapping study of terrestrial behavior in the northeastern Bornean orangutan, Pongo pygmaeus morio, in Wehea Forest, East Kalimantan, Indonesia. We used 78 non-baited camera traps set in 43 stations along roads, trails, and at mineral licks (sepans) to document the frequency of orangutan terrestriality. Habitat assessments were used to determine how terrestrial behavior was influenced by canopy connectivity. We compared camera trapping results for P. p. morio to those for a known terrestrial primate (Macaca nemestrina), and another largely arboreal species (Presbytis rubicunda) to assess the relative frequency of terrestrial behavior by P. p. morio. A combined sampling effort of 14,446 trap days resulted in photographs of at least 15 individual orangutans, with females being the most frequently recorded age sex class (N=32) followed by flanged males (N=26 records). P. p. morio represented the second most recorded primate (N=110 total records) of seven primate species recorded. Capture scores for M. nemestrina (0.270) and P. p. morio (0.237) were similar and almost seven times higher than for the next most recorded primate, P. rubicunda (0.035). In addition, our results indicate that for orangutans, there was no clear relationship between canopy connectivity and terrestriality. Overall, our data suggest that terrestriality is relatively common for the orangutans in Wehea Forest and represents a regular strategy employed by individuals of all age-sex classes. As Borneo and Sumatra increasingly become characterized by mixed-use habitats, understanding the ecological requirements and resilience in orangutans is necessary for designing optimal conservation strategies.

show abstract

“…Importantly, there has been a rapid increase over the last decade in the use of camera traps for conducting such studies [15], allowing intensive surveys to be made over larger areas with reduced effort in the field. This has led to significant extensions in the known distributions and habitat tolerances of many species [16]–[19], including Borneo's wild cat species [12], [20], [21]. However, it remains the case that few camera trap surveys have been done beyond the boundaries of protected areas, in forests which are not pristine and not sustainably managed (but see [9], [22], [23]).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Status of Wild Felids in a Highly-Disturbed Commercial Forest Reserve in Borneo and the Implications for Camera Trap Survey Design

et al. 2013

View full text Add to dashboard Cite

The proliferation of camera-trapping studies has led to a spate of extensions in the known distributions of many wild cat species, not least in Borneo. However, we still do not have a clear picture of the spatial patterns of felid abundance in Southeast Asia, particularly with respect to the large areas of highly-disturbed habitat. An important obstacle to increasing the usefulness of camera trap data is the widespread practice of setting cameras at non-random locations. Non-random deployment interacts with non-random space-use by animals, causing biases in our inferences about relative abundance from detection frequencies alone. This may be a particular problem if surveys do not adequately sample the full range of habitat features present in a study region. Using camera-trapping records and incidental sightings from the Kalabakan Forest Reserve, Sabah, Malaysian Borneo, we aimed to assess the relative abundance of felid species in highly-disturbed forest, as well as investigate felid space-use and the potential for biases resulting from non-random sampling. Although the area has been intensively logged over three decades, it was found to still retain the full complement of Bornean felids, including the bay cat Pardofelis badia, a poorly known Bornean endemic. Camera-trapping using strictly random locations detected four of the five Bornean felid species and revealed inter- and intra-specific differences in space-use. We compare our results with an extensive dataset of >1,200 felid records from previous camera-trapping studies and show that the relative abundance of the bay cat, in particular, may have previously been underestimated due to the use of non-random survey locations. Further surveys for this species using random locations will be crucial in determining its conservation status. We advocate the more wide-spread use of random survey locations in future camera-trapping surveys in order to increase the robustness and generality of inferences that can be made.

show abstract

Discovery of Miller's Grizzled Langur (Presbytis hosei canicrus) in Wehea Forest Confirms the Continued Existence and Extends Known Geographical Range of an Endangered Primate

Cited by 9 publications

References 4 publications

Advancing Primate Research and Conservation Through the Use of Camera Traps: Introduction to the Special Issue

Advancing Primate Research and Conservation Through the Use of Camera Traps: Introduction to the Special Issue

Terrestriality in the bornean orangutan (Pongo pygmaeus morio) and implications for their ecology and conservation

Assessing the Status of Wild Felids in a Highly-Disturbed Commercial Forest Reserve in Borneo and the Implications for Camera Trap Survey Design

Contact Info

Product

Resources

About