Chalinolobus tuberculatus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Vespertilionidae

Scientific Name: Chalinolobus tuberculatus (Forster, 1844)
Common Name(s):
English New Zealand Long-tailed Bat, Long-tailed Wattled Bat
Taxonomic Notes: There are two proposed subspecies/evolutionary significant units (ESUs) recognized by the New Zealand Bat Recovery Group and the New Zealand Department of Conservation (Winnington 1999).

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2ace ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): O'Donnell, C.
Reviewer(s): Lamoreux, J. (Global Mammal Assessment Team), Racey, P.A., Medellín, R. & Hutson, A.M. (Chiroptera Red List Authority)
This species is listed as Vulnerable because populations have declined by more than 30% in past 10 years and these declines continue. Furthermore, the population reductions have led to the disappearance of the species from parts of its range. Competition with introduced species for nesting sites and predation from introduced species are major threats to the species.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to New Zealand where it has been recorded from areas of suitable habitat on North Island, South Island, and Stewart Island. It has recently become absent from the Banks Peninsula of South Island, and now also appears to be rare or absent from many sites where they were formerly common (O'Donnell 2005).
Countries occurrence:
New Zealand (North Is., South Is.)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There were substantial population declines in this species during the 1990s (O'Donnell 2001). The species is now rare or absent from many sites at which it was once common, and these declines are continuing (O'Donnell 2005).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:New Zealand long-tailed bats are associated with areas of native temperate forest. The species has been recorded some distance from forest, occasionally in farmland and non-native plantations, but are generally found close to remnant native forest fragments (O'Donnell 2005). They primarily roost as solitary animals or in small groups within cavities in trees in native forest (O'Donnell 2005). Females are thought to give birth to a single young annually (O'Donnell 2001, 2005).

Threats [top]

Major Threat(s): Declines in long-tailed bats result from a combination of threats, namely predation and competition by introduced predators and browsers, habitat loss through land clearance, habitat degradation through logging and fragmentation of forests, and disturbance at roost sites. Introduced mustelids (Mustela spp.), rats (Rattus spp.), possums, and feral and domestic cats all prey on, or attempt to prey on, New Zealand bats (Worthy 1997; O'Donnell 2000; Pryde et al. 2005; Pryde et al. 2006). In a recent management trial survival was increased significantly in two subpopulations where intensive control of ship rats occurred (C. O'Donnell pers. comm.).

Conservation Actions [top]

Conservation Actions: This species is protected by the New Zealand Wildlife Act of 1953. Conservation is occurring using guidance from a national Bat Recovery Plan (Molloy 1995), with on-going assessments and annual work plans being co-ordinated by the national Bat Recovery Group. Conservation programmes are in place aimed at protecting roosting sites, enhancing habitat, controlling predators, and educating the public about New Zealand long-tailed bat. More information is needed regarding the population numbers and current status of the species.

There are two proposed subspecies/evolutionary significant units (ESUs) recognised by the New Zealand Bat Recovery Group and the New Zealand Department of Conservation (Winnington 1999). The national (non-IUCN) listings for these populations are as follows (Hitchmough et al. 2007):

Long-tailed bat (North Island) Chalinolobus tuberculatus, nationally vulnerable
Long-tailed bat (South Island) Chalinolobus tuberculatus, nationally endangered

Citation: O'Donnell, C. 2008. Chalinolobus tuberculatus. The IUCN Red List of Threatened Species 2008: e.T4425A10881758. . Downloaded on 25 September 2018.
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