Population size, distribution and status of the remote and Critically Endangered Bawean deer <i>Axis kuhlii</i>

Rahman, Dede Aulia; González, Georges; Aulagnier, Stéphane

doi:10.1017/s0030605316000429

Cited by 18 publications

(32 citation statements)

References 31 publications

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“…Field‐based comparisons of estimates from the REM with more widely used approaches for estimating density, such as capture mark recapture and distance‐based line transects, have generated both similar and diverging estimates (Rovero & Marshall, ; Zero et al ., ; Anile et al ., ; Cusack et al ., 2015a; Balestrieri et al ., ; Caravaggi et al ., ). While it is possible to obtain some data on movement parameters from camera‐traps (Rahman et al ., ; Rowcliffe et al ., ) estimating movement parameters for REM is one of the approaches most difficult and controversial aspects. I obtained lesser oriental chevrotain movement data from a radio‐telemetry study conducted elsewhere in the species’ range (Matsubayashi et al ., ); and this may not truly reflect movement patterns in the Cardamom Forest Landscape.…”

Section: Discussionmentioning

confidence: 99%

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Monitoring tropical forest ungulates using camera‐trap data

Gray¹

2018

Journal of Zoology

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Tropical forest ungulates are poorly known and, despite their ecological and conservation significance, there are few studies on their density and abundance. I estimated densities of lesser oriental chevrotain Tragulus kanchil in the Southern Cardamom National Park, south‐west Cambodia using camera‐trap encounter rates and fitting a random encounter model (REM) that does not require individual identification of animals. This represents the first use of REM on forest ungulates in mainland tropical Asia and provides the first density estimate for any chevrotain species in mainland South East Asia. Sixty‐five camera‐trap stations generated 501 encounters of lesser oriental chevrotain across >8200 camera‐trap nights within a systematic random camera‐trap grid of 200 km2 in the Southern Cardamom National Park. Density of lesser oriental chevrotain was estimated at between 57 and 98 (trueXfalse¯ 81) individuals per km2. The random deployment of camera‐traps, a prerequisite of the REM, did not prevent the detection of the majority of ground‐dwelling large mammal species likely to be present in the study site. Despite its slow uptake by field conservationists, the REM may have potential for monitoring tropical ungulates particularly in dense evergreen forest where other methodologies, for example, distance‐based line transect sampling are unsuitable.

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Section: Discussionmentioning

confidence: 99%

“…In this paper, I present the first use of the REM from camera-trap data to estimate densities of forest ungulates in mainland tropical Asia. The approach has previously been successfully applied to estimate densities of the threatened endemic ungulates on Bawean Island, Indonesia (Rademaker et al, 2016;Rahman, Gonzalez & Aulagnier, 2016).…”

Section: Discussionmentioning

confidence: 99%

Monitoring tropical forest ungulates using camera‐trap data

Gray¹

2018

Journal of Zoology

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“…Apart from a 9-month camera-trap survey for Bawean deer in 2014 (Rahman et al, 2017a) and a survey for Bawean warty pigs in 2015 (Rademaker et al, 2016), there has been no long-term study of the mammal biodiversity of Bawean. As a result, no data are available about the ecology and behaviour of wild populations of the island's threatened endemic species (but see Rode-Margono et al, 2016a), which hinders effective conservation planning.…”

Section: Introductionmentioning

confidence: 99%

Ecology and conservation of the endemic Bawean warty pig Sus verrucosus blouchi and Bawean deer Axis kuhlii

Rode-Margono

Khwaja

Rademaker

et al. 2019

Oryx

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The island of Bawean, Indonesia, is home to the endemic Bawean warty pig Sus verrucosus blouchi and Bawean deer Axis kuhlii. Despite their threatened status, no long-term monitoring programme is in place for either species. Using random encounter and occupancy modelling based on 4,516 camera-trap days in 2014 and 2015 we aimed to provide population estimates and ecological data, including habitat preferences, for these species. For the Bawean warty pig we estimate an overall population size of 234–467 mature individuals and demonstrate a negative correlation between probability of occupancy and distance from villages. This preference for human-modified habitat has implications for human–wildlife conflict and hunting pressure for this species. The population of the Bawean deer could not be estimated because of the low number of encounters, but we suggest that this indicates the population is considerably smaller than previously reported. As island endemics, the Bawean warty pig and Bawean deer are particularly vulnerable to threats, and appropriate measures for safeguarding the species need to be taken.

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“…Therefore, Bawean deer are listed into crisis or very endangered category by CITES as appendix 1 and International Union for Conservation of Natural Resources (IUCN) (Semiadi et al, 2008). Further, the Bawean deers is a critically endangered species (Rahman et al, 2017a).…”

Section: Introductionmentioning

confidence: 99%

“…As a result, natural food supplies for Bawean deer decrease (Prevedello et al, 2013), which is followed by the increase of the parasite infection of these animals (Nurcahyo, 2015). Further, the massive number of illegal hunting and logging by local citizens becomes the primary factor (Rahman et al, 2017a).…”

Section: Introductionmentioning

confidence: 99%

Bawean Island Citizens' Perception and Attitude toward the Existence of Bawean Deer (Axis kuhlii) and Its Habitat

Sigit¹

2019

American Journal of Animal and Veterinary Sciences

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Bawean deer (Axis kuhlii) is an Indonesian endemic-animal species that is categorized as Critically Endangered by IUCN and listed on Appendices I by CITES. This study aims to analyse Bawean citizens' perceptions and attitude to forest and the Bawean deer. The study was conducted by direct interviews and field observations. The respondents were determined by purposive sampling and quota sampling resulted in 191 respondents. The result indicates that the Bawean citizens have a low education level. Some of them finished education after elementary school (39.89%) and have not even completed this level 41.49%. Most of the Bawean citizens work as farmers (62.23%) and rely on the forest for their livelihoods, such as hunting for fresh meat. It is concluded that the educational background and well-being level of the Bawean citizens influence the perception of Bawean deer and wildlife reserve forest. Further, it will affect the existence and sustainability of the forest ecosystem. The citizens' attitudes towards the environment will be favourable if they have a high education level and forest supervision is held continuously.

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Population size, distribution and status of the remote and Critically Endangered Bawean deer Axis kuhlii

Cited by 18 publications

References 31 publications

Monitoring tropical forest ungulates using camera‐trap data

Monitoring tropical forest ungulates using camera‐trap data

Ecology and conservation of the endemic Bawean warty pig Sus verrucosus blouchi and Bawean deer Axis kuhlii

Bawean Island Citizens' Perception and Attitude toward the Existence of Bawean Deer (Axis kuhlii) and Its Habitat

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