Terrestrial mammal community richness and temporal overlap between tigers and other carnivores in Bukit Barisan Selatan National Park, Sumatra

Allen, Maximilian L.; Sibarani, Marsya Christyanti; Utoyo, Laji; Krofel, Miha

doi:10.32800/abc.2020.43.0097

Cited by 18 publications

(15 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diurnal time boundaries were determined by calculating the average sunrise/sunset time from all black bear detections before and after hibernation. Overlap estimates were made for black bears before and after hibernation as well as for the different types of human activity using the overlap coefficient (Δ), which is scaled from 0 to 1, where (Δ = 1) signifies complete overlap 43 , 44 , 47 . We also investigated the effect of cub presence on black bear daily activity patterns to determine if their presence contributed to significant changes in activity, but given the smaller sample size of cub detections, we calculated this metric using combined data for both the before and after hibernation 48 .…”

Section: Discussionmentioning

confidence: 99%

“…After completion of subject identification, which included 10 volunteers identifying the given animal and completing several additional tasks (i.e., number of individuals, adult or young, behavior, male or female) we pulled all subjects with at least 50% of volunteers identifying a black bear for further review. Following our expert review, we created independent wildlife observations or detections which were determined using a 30-min interval between sightings of the same species 43 , 44 . For consistency, this method was used for both black bears and human related detections, noting that on heavily traveled human trails there may have been different individual humans passing within 30 min of each other.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Human recreation impacts seasonal activity and occupancy of American black bears (Ursus americanus) across the anthropogenic-wildland interface

Hubbard

Cove

Lafferty

2022

Sci Rep

View full text Add to dashboard Cite

Protected areas serve an important role in wildlife conservation, yet most wildlife occur outside these areas, subject to varying degrees of human disturbance. In the Upper Peninsula of Michigan, American black bears (Ursus americanus), a highly mobile, opportunistic species, are common despite an extensive outdoor recreation industry with the potential to affect black bear spatial and temporal activity. We investigated how environmental and anthropogenic factors influence black bear occupancy, detection, and diel activity patterns across the anthropogenic–wildland interface before and after hibernation. Using 30 camera traps deployed across a rural–wildland interface, we captured black bears at 23 camera sites (~ 77%), which exhibited co-occurrence with humans at 10 sites (~ 33%), revealing that human presence and human population density exert negative effects on black bear seasonal occupancy. Bears were more nocturnal during the hunting season, before hibernation. Human recreational activity increased ~ 38% after hibernation, but bear diurnal activity also increased ~ 36%, except when cubs were present. Our results suggest bears prioritize avoiding humans spatially, rather than temporally, except during the hunting season and when cubs are present. Understanding black bear responses to human recreation patterns and environmental variation is essential for minimizing human-mediated disturbance, and fueling conservation efforts of large, charismatic carnivores.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Human recreation impacts seasonal activity and occupancy of American black bears (Ursus americanus) across the anthropogenic-wildland interface

Hubbard

Cove

Lafferty

2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The similar finding was also recorded in the Bukit Barisan Selatan National Park which is to the south of the Bukit Jambul Gunung Patah Protection Forest landscape. This landscape has a richness of 22 species of medium to large mammals (O'Brien and Kinnaird, 1996), with average annual species richness of 21.5 (range 19-24) mammal species in general (Allen et al, 2020). A similar anthropogenic influence occurs in the natural gas industry in Bontang, East Kalimantan, where 23 mammal species from 15 families and 8 orders were recorded (Sudrajat and Putro, 2019).…”

Section: Large Mammals Species Richnessmentioning

confidence: 95%

Large Mammals Occupancy in Geothermal Power Plant Activities

Aji¹,

Kusrini²,

Rahman³

2022

JPSL

View full text Add to dashboard Cite

Geothermal as one of renewable resources, provide alternative to address the ever-increasing energy demand. Most of the sources are located in forest ecosystem, on which ecological impact took place. PT Supreme Energi Rantau Dedap (SERD) is geothermal power plant project located in protected forest of Bukit Jambul Gunung Patah, South Sumatera. To investigate the large mammal’s species richness and its occupancy, the research observe data from SERD camera trap data installed during exploration and construction phases. Data are then analyzed with single season occupancy modelling with habitat changes (distance), light and elevation as the impact parameters. There are 13, out of 14, large mammals that captured by the camera trap and one was identified on direct encounter. Mostly, the best occupancy model is with constants covariate. Hog badger and muntjac constantly apparent as high occupancy both in naïve occupancy and model result. Four species occupancies are affected by geothermal power plant activity, they are: surili, forest pig, tapir and hog badger. The result showed that during the development phase, large mammals still inhabited the powerplant area despite the fact that some species responded negatively against the impact. Meanwhile, during the construction phase the species richness is tend to be higher but the detection level is lower with varied occupancy level for each large mammals’ species.

show abstract

“…Data Analyses: Images retrieved from the camera traps were identified to species level excluding random captures of birds, and data were sorted into species-specific folders for all sites by season. Images were considered to be independent when they were at least 30 min apart (Linkie and Ridout, 2011;Rovero and Zimmerman, 2016;Allen et al, 2018Allen et al, , 2020.…”

Section: Riparian Habitat Assessmentmentioning

confidence: 99%

Mammal Persistence Along Riparian Forests in Western India Within a Hydropower Reservoir 55 Years Post Construction

et al. 2021

View full text Add to dashboard Cite

While the negative impacts of dam construction on downstream river stretches and riparian forests are well studied, the status of wildlife presence and persistence in upstream reservoir deltas is virtually unknown. We investigated the drivers of terrestrial mammal occupancy and persistence along riparian forests of Koyna reservoir in western India 55 years after its construction. We adopted a catchment-wide field design grounded in the river continuum concept and sampled different stream orders within the reservoir. Camera traps, nested in an occupancy modeling framework, were deployed across 72 riparian sites and replicated for four seasons across all stream types. We recorded a total of nineteen species of terrestrial mammals during the study period. Multi-season occupancy models revealed three key patterns of mammal persistence: (a) ungulates were more frequently photo-captured in riparian forests; gaur and wild pig had the highest proportions of the total sampled area (0.84 ± 0.12 SE; 0.77 ± 0.07 SE, respectively); (b) small-sized ungulates were more vulnerable to local extinction than large-bodied ungulates; extinction probability was highest for barking deer (0.59 ± 0.07) and lowest for sambar (0.15 ± 0.07); and (c) distance from stream played major roles in determining mammal detection. Riparian forests are fundamentally important to ecosystem functioning and biodiversity conservation, and using the data from this study, managers can plan to sustain high mammal persistence along riparian forests at Koyna reservoir or similar Indian reserves. Further, our robust sampling approach, grounded in the terrestrial-riverine continuum concept, can be applied globally to understand species assemblages, aiding in multi-landscape and wildlife management planning.

show abstract

Terrestrial mammal community richness and temporal overlap between tigers and other carnivores in Bukit Barisan Selatan National Park, Sumatra

Cited by 18 publications

References 37 publications

Human recreation impacts seasonal activity and occupancy of American black bears (Ursus americanus) across the anthropogenic-wildland interface

Human recreation impacts seasonal activity and occupancy of American black bears (Ursus americanus) across the anthropogenic-wildland interface

Large Mammals Occupancy in Geothermal Power Plant Activities

Mammal Persistence Along Riparian Forests in Western India Within a Hydropower Reservoir 55 Years Post Construction

Contact Info

Product

Resources

About