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Vestergaard's Forest Toad

Nectophrynoides vestergaardi Menegon, Salvidio & Loader 2004

Description

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Diagnosis: Nectophyrnoides vestergaardi can be distinguished from N. tornieri by its rounded toes and fingers that lack truncated ends. It can be differentiated from some of the species in its genus by the presence of a distinct tympanum, narrow and elongated paratoid glands, the lack of glands on the limbs, and the shape of the body and head (Menegon et al. 2004).Description: N. vestergaardi has short, slender limbs. The tympanum is easily seen. Raised parotid glands are present that are equally as long as wide and also have dark edges. Toes and fingertips can be rounded or pointed. The fingers are only slightly webbed and toes are partially webbed (Menegon, et al. 2004). Coloration: The dorsal side is light with the lateral sides being darker. Many individuals have a dark stripe running down the dorsum (Menegon et al. 2004).Coloration in Preservative: In preservative, the dorsal ground color is light brown, and the lateral sides darker. The ventral side is pale cream, and the ventral side of the chin is cream (Menegon, et al. 2004).Variation: There is little variation in the dorsal pattern among individuals or between sexes. The dorsal skin does show some variation between smooth and rough (Menegon et al. 2004).The species authorities are M. Menegon, S. Salvidio, and S.P. Loader. N. vestergaardi was named for Martin Vestergaard, a Danish zoologist, who first discovered it.

Reference

Menegon, Michele and Loader S. (2004). Nectophrynoides vestergaardi. In: IUCN 2010. 2010 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 18 May 2010

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Distribution and Habitat

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This species is found in the West Usambara Mountains in northeastern Tanzania, at an altitude of 1230-2000 m. Its habitat is in submontane and montane forest, the ecotone between forest and ericaceous vegetation (Menegon and Loader 2004).
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Life History, Abundance, Activity, and Special Behaviors

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No call has been recorded. N. vestergaardi hides in rotten logs, and its reproduction method is assumed to be a similar type of internal fertilization to others in the genus (Menegon and Loader 2004).
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Life History, Abundance, Activity, and Special Behaviors

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The species population is declining, but it is protected in a forest reserve by Dar es Salaam University. Deforestation and urbanization are threatening its habitat. It is listed as endangered, partly due to the decline in the quality of its habitat (Menegon and Loader 2004).
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Relation to Humans

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N. vestergaardi is used as a biological resource (Menegon et al. 2004).
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Nectophrynoides vestergaardi

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Nectophrynoides vestergaardi, also known as the Vestergaard's forest toad, is a species of toad in the family Bufonidae. It is endemic to the West Usambara Mountains, Tanzania.[1][4] It is named in honour of Martin Vestergaard, the Danish biologist[5] who was the first to recognize that the population now described as Nectophrynoides vestergaardi was a new species.[3]

Description

Adult males measure 19–22 mm (0.7–0.9 in) and adult females 21–26 mm (0.8–1.0 in) in snout–urostyle length. The snout is short. The tympanum is distinct. The limbs are slender. The parotoid glands are present as a discrete raised elongated ridge. The fingers and toe tips are rounded. The fingers have traces of webbing while the toes have some basal webbing. Preserved specimens have light brown dorsal ground colour and are conspicuously darker laterally. Most individuals have a fine dark mid-dorsal vertebral line from snout to urostyle. The underside has a slightly translucent pale cream colour.[3]

The presence of a small number (18) of large, developed embryos in females suggests that this species is ovoviviparous.[3]

Habitat and conservation

Nectophrynoides vestergaardi occurs in montane forests and their ecotone toward ericaceous vegetation. It is a terrestrial species. It is locally relatively common but threatened by habitat loss caused by agricultural activities, wood extraction, and expanding human settlements. It occurs in a number of forest reserves, but these reserves require further protection.[1]

References

  1. ^ a b c IUCN SSC Amphibian Specialist Group (2015). "Nectophrynoides vestergaardi". IUCN Red List of Threatened Species. 2015: e.T54845A16937159. doi:10.2305/IUCN.UK.2015-2.RLTS.T54845A16937159.en. Retrieved 16 November 2021.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ a b c d Menegon, M.; Salvidio, S. & Loader, S. P. (2004). "Five new species of Nectophrynoides Noble 1926 (Amphibia Anura Bufonidae) from the Eastern Arc Mountains, Tanzania". Tropical Zoology. 17 (1): 97–121. doi:10.1080/03946975.2004.10531201. hdl:11567/213502. S2CID 84973032.
  4. ^ a b Frost, Darrel R. (2019). "Nectophrynoides vestergaardi Menegon, Salvidio, and Loader, 2004". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 28 September 2019.
  5. ^ Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 223. ISBN 978-1-907807-42-8.
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Nectophrynoides vestergaardi: Brief Summary

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Nectophrynoides vestergaardi, also known as the Vestergaard's forest toad, is a species of toad in the family Bufonidae. It is endemic to the West Usambara Mountains, Tanzania. It is named in honour of Martin Vestergaard, the Danish biologist who was the first to recognize that the population now described as Nectophrynoides vestergaardi was a new species.

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