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- McClelland, Blinda E.; Wilczynski, Walter; Ryan, Michael J.
- Biological journal of the Linnean Society 1998 v.63 no.1 pp. 51-67
- Acris crepitans; Neobatrachia; bioacoustics; body size; cartilage; communications technology; ears; frogs; geographical variation; head; intraspecific variation; larynx; males; mating behavior; muscles; vocalization; Texas
- ... In a previous report, the authors found significant population variation in the calls of cricket frogs (Acris crepitans) that could not be explained by geographic variation in body size alone. Here we extend that work by investigating intraspecific population variation in the morphological characteristics underlying acoustic communication in male cricket frogs from several sites in Texas. We measu ...
- Baker, John A.; Foster, Susan A.; Heins, David C.; Bell, Michael A.; King, Richard W.
- Biological journal of the Linnean Society 1998 v.63 no.1 pp. 141-159
- Gasterosteus aculeatus; anadromous fish; environmental factors; females; freshwater; glaciation; lakes; life history; piscivores; streams; Alaska
- ... Life-history characteristics of female threespine stickleback (Gasterosteus aculeatus) were examined in 12 populations, 11 freshwater and one anadromous, within the Cook Inlet region of Alaska. Because this area has been deglaciated during the last 20 000 years, the freshwater populations are recently derived, probably independendy, from the local marine or anadromous stickleback. Freshwater three ...