Overview

Comprehensive Description

Description

Medium-sized species with stout appearance, 23-29 mm. Head and anterior part of dorsum covered by a sharply delimited yellow/green marking, posteriorly ending more or less straight in the three known specimens. Flanks, arms, legs, and posterior part of dorsum dark brown. Hands and fingertips without blue spots. Frenal stripe present, but thin, not reaching the snout tip. Upper part of iris with light pigment. Venter with small bluish spots, throat with a light horseshoe marking. No red, orange or yellow pattern on hindlimbs (Glaw and Vences 2007).

Similar species: Mantella laevigata has a dark throat and enlarged fingertips, and lacks a frenal stripe. Mantella viridis has partly greenish flanks and hindlimbs (Glaw and Vences 2007).

Taken with permission from Glaw and Vences (2007).

  • Raxworthy, C., Vences, M., Glaw, F., Andreone, and Rabibisoa, N. (2008). Mantella manery. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 22 April 2009.
  • Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
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Distribution

Range Description

This species occurs in northeastern and northern Madagascar, with records from Marojejy at 300 m asl and Est Betaidambo in the Analabe Rainforest along Ramena River (west of Tsaratanana Reserve National Integral) at 700 m asl. It was described in 1999, based on a single specimen in the collections of the Zoological Institute of the University of Antananarivo. The original description was based on a colour slide, but the holotype has since been found and redescriptions have been published (Vences et al. 2004).
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Distribution and Habitat

Marojejy (Vences and Glaw 2007). It occurs between 300-700 m asl in mid-altitude rainforest (Raxworthy et al. 2008).

  • Raxworthy, C., Vences, M., Glaw, F., Andreone, and Rabibisoa, N. (2008). Mantella manery. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 22 April 2009.
  • Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a species of low and mid altitude rainforest. It is terrestrial, and 4-5 individuals have been found in a stony brook. Its breeding habits are unknown, but it is likely to reproduce like other species of Mantella, with the eggs being laid on the ground, and the larvae developing in water.

Systems
  • Terrestrial
  • Freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
B1ab(iii)

Version
3.1

Year Assessed
2009

Assessor/s
Raxworthy, C., Vences, M., Glaw, F., Andreone, F., Rabibisoa, N.H.C. & Cox, N.

Reviewer/s
Hoffmann, M. & Angulo, A.

Contributor/s

Justification
Listed as Vulnerable because while it remains poorly known, its extent of occurrence is presumed to be less than 20,000 km², it is known from two locations, and there is believed to be a continuing decline in the extent and quality of its habitat in northern Madagascar.

History
  • 2008
    Data Deficient
    (IUCN 2008)
  • 2008
    Data Deficient
  • 2004
    Data Deficient
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Population

Population
The population status of this species is unknown, but the paucity of records suggests that it is rare.

Population Trend
Unknown
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Life History, Abundance, Activity, and Special Behaviors

Habits: Two specimens were found along a large stony stream in primary forest. They were active during the day on the ground (Glaw and Vences 2007). Likely to reproduce by laying eggs on land, near water, and having larvae develop in the water, like other Mantella (Raxworthy et al. 2008).

Calls: Unknown (Glaw and Vences 2007).

  • Raxworthy, C., Vences, M., Glaw, F., Andreone, and Rabibisoa, N. (2008). Mantella manery. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 22 April 2009.
  • Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
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Threats

Major Threats
Its forest habitat is likely to be receding due to subsistence agriculture, timber extraction, charcoal manufacture, invasive spread of eucalyptus, livestock grazing and expanding human settlements. Andreone et al. (2008) record that there is a continuing decline in the extent and quality of its assumed habitat in northern Madagascar.
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Life History, Abundance, Activity, and Special Behaviors

Appears to be a rare species. It occurs within one protected area, in Parc National de Marojejy. The second locality, within the Analabe Rainforest, is not protected but is not currently being logged as it is a remote site (Raxworthy et al. 2008).

  • Raxworthy, C., Vences, M., Glaw, F., Andreone, and Rabibisoa, N. (2008). Mantella manery. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 22 April 2009.
  • Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
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Management

Conservation Actions

Conservation Actions
It occurs in Parc National de Marojejy. The second site at the Analabe Rainforest is not protected, but is currently remote from logging activities (N.H.C. Rabibisoa pers. comm.). It is listed on CITES Appendix II.
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Wikipedia

Marojejy mantella

The Marojejy Mantella (Mantella manery) is a species of frog in the Mantellidae family. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist lowland forests, rivers, swamps, and intermittent freshwater marshes. It is threatened by habitat loss.

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