This superb collection of field recordings and descriptions offers unparalleled access to the sounds and calls of numerous popular and less well-known amphibians. The book and accompanying CD provide an introduction to the sound repertoire of species living in eastern and central North America-Several...
SCOTT SIMON
摘要: The frogs and toads of North America : a comprehensive guide to their identification, behavior, and calls, Lang Elliott, Carl Gerhardt, and Carlos Davidson. 0618663991, Toronto Public Library出版时间: March 2009 ISBN: 978061866399-6
当当网图书频道在线销售正版《【预订】The Frogs and Toads of North America A Comprehensive Guide to Their Identification,Behavior, and Calls》,作者:Elliott,出版社:Houghton Mifflin Harcourt。最新《【预订】The Frogs and Toads of North America A Compreh
Leopard frog, group of North American frogs (family Ranidae) occurring throughout North America (except in the coastal band from California to British Columbia) from northern Canada southward into Mexico. At one time the leopard frog was considered a sin
Duellman and Trueb1994; Wells2007). Individual cycles may, however, remain well defined, as observed in a population of toads,Bufo viridis, from a Mediterranean warm temperate region (Jørgensen1984). Little definite is known about patterns of ovarian function, including the duration of an ovar...
Piranhas are neotropical freshwater fishes belonging to Serrasalmidae25. Recent investigations support the monophyly of this family, which is currently divided into three major clades having vernacular names: the “pacu”, the “Myleus” and the “true piranhas”26,27,28. Within the Serrasalmidae,...
and warning calls. Although distress calls in frogs have been recognized to occur within the audible spectrum, the occurrence of ultrasound calls has been suggested for one species, but not yet confirmed. Based on our observations, we confirmed the presence of ultrasound distress calls emitted by ...
Senator Orrin Hatch of Utah called on the Federal Trade Commission "to reconsider the competitive effects of Google's conduct in search anddigital advertising." Lawmakers have no official role in determining how the independent agency manages its investigations, but Hatch's call comes amid growing ...
Others are the calls used by male frogs and toads to attract their mates. The forces which have acted in the evolution of these calls are varied and the calls that we hear made by these animals are diverse.Two kinds of factors can be recognized: constraints and forces. Constraints on the...