The spring peeper (Pseudacris crucifer)[3] is a small chorus frog widespread throughout the eastern United States and Canada.[4] They prefer permanent ponds due to their advantage in avoiding predation; however, they are very adaptable with respect to the habitat they can live in. In northern regions, the frog is able to endure below freezing temperatures due to the capacity of their livers to exude and flush the bloodstream with a glucose cryoprotectant which acts both as an anti-freeze in their blood, and allows organs like the heart to enter into a state of protected dormancy.[5] They are so called because of their chirping call that marks the beginning of spring. Crucifer is derived from the Latin root meaning "cross-bearing". This could be a reference to the cross-like pattern on the spring peeper's dorsal side.
These chirping calls are significant for communication in mating as females choose their mates based on the frequency and volume associated with them. Satellite males who do not make any calls also strategically place themselves near those that make louder calls in an attempt to intercept females.
Temperature plays a large role in when the spring peeper begins breeding as well as the duration of mating. Warm spells result in a massive increased calling rate.[6]
^IUCN SSC Amphibian Specialist Group (2022). "Pseudacris crucifer". IUCN Red List of Threatened Species. 2022: e.T55892A193392474. doi:10.2305/IUCN.UK.2022-1.RLTS.T55892A193392474.en. Retrieved 2 December 2022.
^"Pseudacris crucifer". NatureServe Explorer. Retrieved 17 April 2024.
^ITIS Pseudacris crucifer (Integrated Taxonomic Information System). www.itis.gov.
^"Northern Spring Peeper / Rainette Crucifère". Opinicon Natural History. 2009-09-17. Retrieved 2021-03-19.
^Schmid, William D. (1982-02-05). "Survival of Frogs in Low Temperature". Science. 215 (4533): 697–698. Bibcode:1982Sci...215..697S. doi:10.1126/science.7058335. ISSN 0036-8075. PMID 7058335.
^Wells, Kentwood D.; Taigen, Theodore L.; O'Brien, Jennifer A. (1996-01-01). "The effect of temperature on calling energetics of the spring peeper (Pseudacris crucifer)". Amphibia-Reptilia. 17 (2): 149–158. doi:10.1163/156853896X00180. ISSN 1568-5381.
The springpeeper (Pseudacris crucifer) is a small chorus frog widespread throughout the eastern United States and Canada. They prefer permanent ponds...
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