Population size, Red List status and conservation of the Natuna leaf monkey Presbytis natunae endemic to the island of Bunguran, Indonesia

Lammertink, Martjan; Nijman, Vincent; Setiorini, Utami

doi:10.1017/s003060530300084x

Cited by 23 publications

(20 citation statements)

References 2 publications

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“…Interviews were kept short (typically lasting between 5 and 10 min) and were carried out at the respondents' homes, farms or monasteries. To ensure independence of data, each interview was conducted separately (Lammertink et al 2003). The questionnaires were constructed simultaneously to collect data on human attitudes towards the langurs (Hill 1997).…”

Section: Methodsmentioning

confidence: 99%

When there is no forest left: fragmentation, local extinction, and small population sizes in the Sri Lankan western purple-faced langur

Parker¹,

Nijman²,

Nekaris³

2008

Endang. Species. Res.

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The western purple-faced langur Trachypithecus vetulus nestor is a Critically Endangered primate endemic to Sri Lanka according to the International Union for Conservation of Nature (IUCN). Its population decline is inferred mainly due to vast habitat loss. Few recent data are available regarding its distribution or abundance. The aim of our study was to assess the conservation status of T. v. nestor throughout its known historical range by establishing presence/absence and correlating these data with semi-structured interviews determining human perceptions and threats. Twenty-six sites were investigated, with presence of T. v. nestor being confirmed at 11 and indicated through questionnaires only at 2 additional sites. The present distribution of T. v. nestor is severely fragmented both locally and regionally. More than half of the populations comprised 1 or 2 groups only and, being isolated in a matrix of urban landscapes, are close to unviable. Conflicts between local people and T. v. nestor were identified at such sites, where reports of troops crop-raiding gardens and plantations were associated with negative perceptions. Consequences for crop-raiding langurs ranged from shouting to (infrequently) shooting and killing by dogs. Negative views towards T. v. nestor were significantly related to the length of time they spent in anthropogenic landscapes, while more positive views were significantly associated with the length of time T. v. nestor spent in forested areas. Evidence of local extinctions means that the remaining, yet increasingly fragmented habitat of the highly arboreal T. v. nestor is critical for survival. Intervention to manage this human-wildlife conflict is vital. An integrated approach using international and local conservation authorities is highly recommended.

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Section: Methodsmentioning

confidence: 99%

When there is no forest left: fragmentation, local extinction, and small population sizes in the Sri Lankan western purple-faced langur

Parker¹,

Nijman²,

Nekaris³

2008

Endang. Species. Res.

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“…To assure independence of data, we interviewed people one at a time (Lammertink et al 2003) and interviews lasted between 20-30 minutes. The survey included questions to gather following information: (a) type and extent of conflict, (b) participation in the compensation program and (c) (c) people's understanding that compensation scheme will not eradicate the occurrence of conflict (20%), and (d) mistrust on the authenticity of the compensation program (13.2%).…”

Section: Community Perception Datamentioning

confidence: 99%

Patterns of Human-Wildlife Conflict and People’s Perception towards Compensation Program in Nilambur, Southern Western Ghats, India

Rohini¹,

Aravindan²,

Das

et al. 2017

Conservation Sci

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SummaryAim The aim of this research was to examine patterns of human-wildlife conflict and assess community perception towards compensation program implemented to ameliorate human-wildlife co-existence.Location North and South Forest Divisions, Nilambur, South India. Material and Methods Key findingsCrop damage was the most common type of conflict, followed by property damage, injury and death by wildlife attack. Crop damage was contributed mainly by elephant (Elephas maximus) (59%) and wild boar (Sus scrofa) (32%). The other wildlife species involved in conflict were bonnet macaque (Macaca radiata) (3.8%), leopard (Panthera pardus) (3.3%), Malabar giant squirrel (Ratufa indica) (0.47%), porcupine (Hystrix indica) (0.29%), Guar (Bos gaurus) (0.95%) and Sambar deer (Cervus unicolor)(0.29 %). On average, people took 13 days to claim compensation, which received decisions in 90 days. The majority of respondents (67%) were not satisfied with the compensation schemes. The main causes of such dissatisfaction were (a) allocation of insufficient money for the compensation (46.6%), (b) prolonged and difficult administrative procedures to make claims (20%), (c) people's convictions that compensation scheme does not eradicate the conflict (20%) and (d) disbelief on the officials involved in compensation program (6.6%). Conservation implications Our results suggest that compensationprogram has not gained acceptance among local community as an effective strategy to mitigate human-wildlife conflict. Although it may reduce hostile attitude towards wildlife, alternative approaches are urgently needed that avoid conflicts.

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“…Interviews were conducted in the Mizo language (Phuldungsei and parts of Teirei) by the senior author, or, with the aid of an assistant, in the Bru language (parts of Teirei). Each interview was conducted in the interviewee's house, and to ensure independence, each interviewee was questioned separately (Lammertink et al 2003).…”

Section: Historic Declinementioning

confidence: 99%

Habitat use and Documentation of a Historic Decline of Western Hoolock Gibbon (Hoolock hoolock) in Dampa Tiger Reserve, Mizoram, India

Pachuau

Qureshi

Habib

et al. 2013

Primate Conservation

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Population size, Red List status and conservation of the Natuna leaf monkey Presbytis natunae endemic to the island of Bunguran, Indonesia

Abstract: We present the first population estimate species is threatened in part by the demand for captive individuals but mostly by continuing degradation for the Natuna leaf monkey Presbytis natunae, endemic to the island of Bunguran, Indonesia, based on a 2-month and reduction of forest.

Cited by 23 publications

References 2 publications

When there is no forest left: fragmentation, local extinction, and small population sizes in the Sri Lankan western purple-faced langur

When there is no forest left: fragmentation, local extinction, and small population sizes in the Sri Lankan western purple-faced langur

Patterns of Human-Wildlife Conflict and People’s Perception towards Compensation Program in Nilambur, Southern Western Ghats, India

Habitat use and Documentation of a Historic Decline of Western Hoolock Gibbon (Hoolock hoolock) in Dampa Tiger Reserve, Mizoram, India

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