Chytrid infection dynamics in cricket frogs on military and public lands in the midwestern United States

John A. Crawford, Christopher A Phillips, William E. Peterman, Irene E. MacAllister, Neil A. Wesslund, Andrew R Kuhns, Michael Joseph Dreslik

Research output: Contribution to journalArticle

Abstract

The pathogenic chytrid fungus Batrachochytrium dendrobatidis (hereafter, Bd) is a causal agent in amphibian decline and extinction events. Sampling for Bd in the Midwestern United States has largely been opportunistic and haphazard, so little information exists on the true occurrence and prevalence of the disease. We repeatedly tested Cricket Frogs Acris blanchardi or A. crepitans at 54 wetlands in 2009 and 15 wetlands in 2011 on both public and military lands to estimate Bd occurrence and prevalence rates between different land-use types, sampling seasons (spring, summer, autumn) and sampling years. We found Bd occurred in 100% of wetlands we sampled in 2009 and 2011, and overall prevalence was 22.7% in 2009 and 40.5% in 2011. Batrachochytrium dendrobatidis prevalence in 2011 was significantly higher than in 2009 and was significantly higher during the spring season than in the summer or autumn. We also found Bd prevalence was not significantly different on military versus public-use sites and was most affected by the average 30-d maximum temperature prior to sampling. This study provides data on the occurrence and prevalence of Bd in the United States and fills an important gap in the Midwest, while also corroborating prior research findings of increased prevalence in the cooler spring season.

Original languageEnglish (US)
Pages (from-to)344-352
Number of pages9
JournalJournal of Fish and Wildlife Management
Volume8
Issue number2
DOIs
StatePublished - Dec 1 2017

Fingerprint

military lands
public lands
Midwestern United States
cricket
frog
spring (season)
wetland
sampling
infection
wetlands
military land
autumn
summer
amphibian
disease occurrence
disease prevalence
extinction
fungus
land use
coolers

Keywords

  • Batrachochytrium dendrobatidis
  • Conservation
  • Cricket frog
  • Occurrence
  • Prevalence
  • Wetland

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Animal Science and Zoology
  • Nature and Landscape Conservation

Cite this

Chytrid infection dynamics in cricket frogs on military and public lands in the midwestern United States. / Crawford, John A.; Phillips, Christopher A; Peterman, William E.; MacAllister, Irene E.; Wesslund, Neil A.; Kuhns, Andrew R; Dreslik, Michael Joseph.

In: Journal of Fish and Wildlife Management, Vol. 8, No. 2, 01.12.2017, p. 344-352.

Research output: Contribution to journalArticle

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