Biology:Tomopterna damarensis
| Tomopterna damarensis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Pyxicephalidae |
| Genus: | Tomopterna |
| Species: | T. damarensis
|
| Binomial name | |
| Tomopterna damarensis | |
Tomopterna damarensis is a species of frogs in the family Pyxicephalidae. It is found in central to northwestern Namibia and southwestern Angola.[2][3] Common name Damaraland sand frog has been coined for it.[1][2]
Description
Five adult males in the type series measure 38–41 mm (1.5–1.6 in) in snout–vent length;[4] the range in a larger sample is 35–41 mm (1.4–1.6 in).[3] The body is stout. The snout is rounded. The tympanum is round; the supra-tympanic ridge is weakly developed. The fingers have no webbing but the toes are partially webbed. The dorsum is reddish brown with darker brown patches. The eyelids have three darker bars. The shanks and feet are brown with darker patches. The lower surfaces are whitish except for the throat that is darkly pigmented around jaw line.[4]
The male advertisement call is a series of notes, emitted at a rate of seven per second. The call has two harmonics that are equally emphasized, one of 1.1–1.2 kHz and the other of 2.4–2.5 kHz. The call is similar to that of Tomopterna tandyi but has higher repeat rate and two instead of one emphasized harmonics.[4]
Habitat and conservation
The type series was collected from pools in a riverbed.[4] Later on, Tomopterna damarensis have been found in a range of dry, sandy habitats near permanent water; it appears that it needs access to permanent water bodies.[3]
The International Union for Conservation of Nature (IUCN) has assessed this species as "data deficient" because of uncertainty concerning its range and ecological requirements,[1] later research has shown it to be relatively widespread and tolerant of a range of ecological conditions. Large parts of its range enjoys nominal protection in the form of a series of community conservancies in Namibia. In Angola, it occurs in the Iona National Park. The most obvious potential threat to this species is changes in availability of surface water.[3]
References
- ↑ 1.0 1.1 1.2 IUCN SSC Amphibian Specialist Group; South African Frog Re-assessment Group (SA-FRoG) (2017). "Tomopterna damarensis". The IUCN Red List of Threatened Species (IUCN) 2017: e.T58775A77160545. doi:10.2305/IUCN.UK.2017-2.RLTS.T58775A77160545.en. http://www.iucnredlist.org/details/58775/0. Retrieved 14 December 2017.
- ↑ 2.0 2.1 Frost, Darrel R. (2017). "Tomopterna damarensis Dawood and Channing, 2002". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Pyxicephalidae/Cacosterninae/Tomopterna/Tomopterna-damarensis. Retrieved 29 December 2017.
- ↑ 3.0 3.1 3.2 3.3 Heinicke, M. P.; Ceríaco, L. M.; Moore, I. M.; Bauer, A. M.; Blackburn, D. C. (2017). "Tomopterna damarensis (Anura: Pyxicephalidae) is broadly distributed in Namibia and Angola". Salamandra 53 (3): 461–465. http://www.salamandra-journal.com/index.php/home/contents/2017-vol-53/1868-heinicke-m-p-l-m-p-ceriaco-i-m-moore-a-m-bauer-d-c-blackburn/file.
- ↑ 4.0 4.1 4.2 4.3 Dawood, Abeda; Channing, Alan (2002). "Description of a new cryptic species of African sand frog, Tomopterna damarensis (Anura: Ranidae), from Namibia". African Journal of Herpetology 51 (2): 129–134. doi:10.1080/21564574.2002.9635468.
Wikidata ☰ Q2704995 entry
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