Dramatic decline in bat species richness in Singapore, with implications for Southeast Asia

Lane, David; Kingston, Tigga; Lee, Benjamin P. Y.‐H.

doi:10.1016/j.biocon.2006.03.005

Cited by 82 publications

(54 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although still abundant in at least two parts of the country, with several colonies locally protected, the tendency of the species to aggregate in large numbers in caves or buildings renders it particularly vulnerable to hunting for bush meat consumption and human disturbance [31,32]. This is demonstrated by its apparent extinction in Singapore [33] and the loss of nearly all large colonies in the Philippines, several in Laos, and at least one in Myanmar and Cambodia [25,32].…”

Section: Discussionmentioning

confidence: 99%

Reproductive Ecology of Wrinkle-Lipped Free-Tailed Bats Chaerephon plicatus (Buchannan, 1800) in Relation to Guano Production in Cambodia

Furey¹,

Racey

Ith³

et al. 2018

Diversity

View full text Add to dashboard Cite

Wildlife populations in Southeast Asia are subject to increasing pressure from climate change, habitat loss and human disturbance. Cave-roosting bats are particularly vulnerable to all three factors. Because of the ecological services they provide, it is important to assess specific vulnerabilities to inform their conservation management. We evaluated the reproductive phenology and body condition of Chaerephon plicatus for 14 months in 2015-2016 and quantified guano harvesting at the largest colony in Cambodia in 2011-2016. As in Thailand and Myanmar, two annual breeding cycles were recorded, characterized as continuous bimodal polyoestry, with parturition primarily occurring in April and October. Significant declines occurred in body condition between the late wet season and the late dry season, suggesting that bats experience increasing energetic stress as the dry season progresses. Annual guano harvests increased over the study period but could not be used as a proxy for monitoring population size due to the loss of unknown amounts during the wet season and unquantified movements of bats between C. plicatus colonies in the region. We recommend studies to determine the scale and drivers of such movements and creation of sustainable guano harvesting and population monitoring initiatives to ensure the conservation of C. plicatus colonies in Cambodia.

show abstract

Section: Discussionmentioning

confidence: 99%

Reproductive Ecology of Wrinkle-Lipped Free-Tailed Bats Chaerephon plicatus (Buchannan, 1800) in Relation to Guano Production in Cambodia

Furey¹,

Racey

Ith³

et al. 2018

Diversity

View full text Add to dashboard Cite

show abstract

“…Anthropogenic effects on extinction can thus be more accurately assessed. Such research may also be used as a second test of hypotheses of species loss in concert with current methods favored by conservation biologists, such as species-area relationship and endemics-area relationship (e.g., Lane et al 2006).…”

Section: Estimating Extinction Risk and Extinction Rate: The Role Of mentioning

confidence: 99%

The Roles of Taxonomy and Systematics in Bat Conservation

Tsang

Cirranello

Bates

et al. 2015

Bats in the Anthropocene: Conservation of Bats in a Changing World

View full text Add to dashboard Cite

Taxonomy-the description, naming, and classification of organismsand systematics-the study of the evolutionary relationships of organisms-are both crucial components in conservation, providing a necessary framework for any conservation initiative. With more than 200 new bat species identified or raised from synonymy in the past decade and additional taxa described monthly, the Age of Discovery is ongoing for bats. New taxonomic and systematic discoveries clarify the status of populations, and the recognition of distinct species and lineages allows appropriate conservation strategies to be crafted, increasing the likelihood of recovery. In addition to identifying species and specimens, taxonomists care for vouchers, provide species lists for localities, and communicate taxonomic ideas to non-experts, especially through descriptions, keys, and field guides. Taxonomists can also provide conservation planning tools such as inventory data, estimates of extinction risk and extinction rate, and information for defining protected areas. Despite the importance of taxonomy, a lack of financial and institutional support impedes the training and employment of taxonomists and such factors need to be

show abstract

“…Following extensive cultivation and urbanization beginning in the early nineteenth century, Singapore lost over 95% of its primary forest, which was accompanied by the extinction of an estimated 34-59% of all birds, and an estimated 42-78% of all mammals, including all large terrestrial mammals (Corlett 1992;Castelletta et al 2000;Brook et al 2003;Lane et al 2006). The long-tailed macaque is one of two remaining primates on the island, with a current estimated population of between 1218 and 1454 individuals (Sha et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Possible shift in macaque trophic level following a century of biodiversity loss in Singapore

Gibson

2011

Primates

View full text Add to dashboard Cite

Biodiversity loss in tropical forests is a major problem in conservation biology, and nowhere is this more dire than in Southeast Asia. Deforestation and the associated loss of species may trigger shifts in habitat and feeding preferences of persisting species. In this study, I compared the habitat use and diet of long-tailed macaque (Macaca fascicularis) populations in Singapore from two time periods: museum specimens originally collected between 1893 and 1944, and living macaques sampled in 2009. I collected hair and used stable carbon and nitrogen isotope analysis to identify temporal changes in dietary source and trophic position, respectively. δ(13)C ratios were virtually identical, suggesting that macaques foraged in similar habitats during both time periods. However, δ(15)N ratios decreased considerably over time, suggesting that macaques today feed at a lower trophic level than previously. This decline in trophic level may be because of the disappearance or decline of other species that compete with macaques for fruit. This study highlights the effect of biodiversity loss on persisting species in degraded habitats of Southeast Asia, and improves our understanding of how species will adapt to further human-driven changes in tropical forest habitats.

show abstract

Dramatic decline in bat species richness in Singapore, with implications for Southeast Asia

Cited by 82 publications

References 14 publications

Reproductive Ecology of Wrinkle-Lipped Free-Tailed Bats Chaerephon plicatus (Buchannan, 1800) in Relation to Guano Production in Cambodia

Reproductive Ecology of Wrinkle-Lipped Free-Tailed Bats Chaerephon plicatus (Buchannan, 1800) in Relation to Guano Production in Cambodia

The Roles of Taxonomy and Systematics in Bat Conservation

Possible shift in macaque trophic level following a century of biodiversity loss in Singapore

Contact Info

Product

Resources

About