Liuixalus calcarius

Liuixalus calcarius
Conservation status
	; Endangered (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Rhacophoridae
Genus:	Liuixalus
Species:	L. calcarius
Binomial name
	Liuixalus calcarius; Milto, Poyarkov, Orlov, and Nguyen, 2013
Synonyms
	Liuixalus catbaensis Nguyen, Matsui, and Yoshikawa, 2014; Romerus calcarius Dubois, Ohler, and Pyron, 2021;

Liuixalus calcarius, the limestone small tree frog, is a species of frog in the family Rhacophoridae. It is endemic to Vietnam, where it was found in Hai Phong Province.^[1]^[2]^[3] It lives in tropical primary forest habitats rich in karst rock.^[4]

Description

The skin of the dorsum is red-brown in color with an X-shaped mark on the shoulder. This frog has disks on its toes for climbing. The pupil of the eye is horizontal.^[4]

Etymology

Scientists named this frog calcarius for the Latin language word for "limestone." The frog's habitat is rich in karst rock.^[4]

Habitat

This frog has been observed between 15 and 45 meters above sea level on Cat Ba Island. The frog has been found near pools of water in the karst rock and in small, temporary lakes that dry up for part of the year.^[3]

Cat Ba Island is in Cat Ba National Park, and scientists believe the frog's range to be larger than this place alone.^[3]

Reproduction

Scientists have heard the male frogs calling in April but know little else about this species' reproductive biology. They infer that it breeds through larval development, like its congeners.^[3]

Threats

The IUCN classifies this frog as endangered. Scientists believe it to be forest-dependent, which would make it threatened by deforestation associated with agriculture and logging.^[3]

References

^ ^a ^b Frost, Darrel R. "Liuixalus calcarius Milto, Poyarkov, Orlov, and Nguyen, 2013". Amphibian Species of the World, an Online Reference. Version 6.0. American Museum of Natural History, New York. Retrieved June 8, 2023.
^ "Liuixalus calcarius Milto, Poyarkov, Orlov, and Nguyen, 2013". AmphibiaWeb. University of California, Berkeley. Retrieved June 8, 2023.
^ ^a ^b ^c ^d ^e IUCN SSC Amphibian Specialist Group (2021). "Limestone Small Tree Frog: Liuixalus calcarius". The IUCN Red List of Threatened Species. 3.1: e.T73727511A73727522. doi:10.2305/IUCN.UK.2021-3.RLTS.T73727511A73727522.en. 73727511. Retrieved August 1, 2024.
^ ^a ^b ^c Milto KD; Poyarkov Jr NA; Orlov NL; Hguyen TT (2013). "Two new rhacophorid frogs from Cat Ba Island, Gulf of Tonkin, Vietnam". Russian J Herpetol (Full text). 20 (4): 287–300. Retrieved June 8, 2023.

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[AMNH-1] Frost, Darrel R. "Liuixalus calcarius Milto, Poyarkov, Orlov, and Nguyen, 2013". Amphibian Species of the World, an Online Reference. Version 6.0. American Museum of Natural History, New York. Retrieved June 8, 2023.

[Amph-2] "Liuixalus calcarius Milto, Poyarkov, Orlov, and Nguyen, 2013". AmphibiaWeb. University of California, Berkeley. Retrieved June 8, 2023.

[IUCN-3] IUCN SSC Amphibian Specialist Group (2021). "Limestone Small Tree Frog: Liuixalus calcarius". The IUCN Red List of Threatened Species. 3.1: e.T73727511A73727522. doi:10.2305/IUCN.UK.2021-3.RLTS.T73727511A73727522.en. 73727511. Retrieved August 1, 2024.

[Des-4] Milto KD; Poyarkov Jr NA; Orlov NL; Hguyen TT (2013). "Two new rhacophorid frogs from Cat Ba Island, Gulf of Tonkin, Vietnam". Russian J Herpetol (Full text). 20 (4): 287–300. Retrieved June 8, 2023.

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