New Jersey chorus frog
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Genus: Pseudacris
Species:
P. kalmi
Binomial name
Pseudacris kalmi
Harper, 1955
Synonyms

Pseudacris triseriata kalmi Harper, 1955

Pseudacris kalmi, the New Jersey chorus frog, is a species of frog in the treefrog family Hylidae.[1][2] It is found in the states near New Jersey in the United States. It was first described as subspecies of Pseudacris triseriata but it is differentiated by range and size.[2][3] This frog's color ranges from grey to tan or greenish brown with a dark stripe on both sides of the body that extends from the snout, through their eyes, and to the groin.[4] It breeds in early spring from February to April. It broods in shallow bodies of water,[5][3] especially vernal pools, which dry up later in the season.[6]

The adult frog measures 19–36 mm in snout-vent length. It has one stripe that goes from over the mouth to under each eye and three thick stripes over its back from front to back. Sometimes the middle stripe is broken.[6]

In breeding seasons, the male frogs seek vernal pools. They sit in the water or on plants and sing for the females, who come to them. The female frog lays eggs on the stems of plants in shallow water. The eggs stick together in groups of 8 to 143. The tadpoles take about two months to become frogs.[6]

This frog's predators include water snakes, foxes, birds, raccoons, and such arthropods as crayfish and spiders.[6]

Scientists named this frog kalmi for Pehr Kalm, also called Peter Kalm, a Swedish traveler who wrote a book called Travels into North America in 1772. In that book, he discussed Niagara Falls, other natural features of the area, and the many frogs of New Jersey.[6]

References

  1. 1 2 IUCN SSC Amphibian Specialist Group (2022). "New Jersey Chorus Frog: Pseudacris kalmi". The IUCN Red List of Threatened Species. 3.1: e.T136134A119000677. doi:10.2305/IUCN.UK.2022-1.RLTS.T136134A119000677.en. 136134. Retrieved August 11, 2022.
  2. 1 2 Frost, Darrel R. (2016). "Pseudacris kalmi Harper, 1955". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 30 May 2016.
  3. 1 2 Conant, Roger and, Collins, John T., 1998, Peterson Field Guide: Reptiles and Amphibians, Eastern/Central North America, 616 pgs., Houghton Mifflin Company;, Boston
  4. ↑ Curtis, Brandon; Hamilton, Bob; Becker, Don; Ruhe, Brandon (2016). "New Jersey Chorus Frog". PAHERPS. Retrieved 29 April 2019.
  5. ↑ Mitchell, Joseph C. and Karen K. Reay, 1999, Atlas of Amphibians and Reptiles in Virginia, Num. 1, 122 pgs., Virginia Department of Game and Inland Fisheries, Richmond, VA
  6. 1 2 3 4 5 Stephanie Menjivar (March 20, 2021). Ann T. Chang (ed.). "Pseudacris kalmi: New Jersey Chorus Frog". AmphibiaWeb. University of California, Berkeley. Retrieved August 11, 2022.


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