HUMFELD, SARAH C.*; GERHARDT, H. CARL: Male Acoustic Preferences Parallel Female Mate Choice Preferences Male green treefrogs (Hyla cinerea) attract potential mates, as well as sexual parasites, with their advertisement call. Males using the alternative satellite mating tactic, position themselves silently near a calling male and attempt to intercept females attracted to the caller. In […]

KORZAN, W.J.*; SUMMERS, T.R.; SUMMERS, C.H.: Live or Reflected Aggression Comparison of two established ethological paradigms suggest that the type of experimental design can influence the efficacy of social signaling and the vigor of aggressive display. In two experiments display of social aggression was stimulated in Anolis carolinensis either by a reflection in a mirror […]

HAHN, T. P. *; KELSEY, T. R.; PEREYRA, M. E.: Geographic variation in flight calls of a nomadic cardueline finch, the evening grosbeak (Coccothraustes vespertinus). Many species of oscine songbirds display vocal variation in the form of song dialects. Variation in non-song vocalizations, or calls, is less familiar. Calls, unlike song, are often thought to […]

KARASOV, W.H.; MCSWAN, E.L.; WRIGHT, J.: Begging and digestion by nestling Pied flycatchers in relation to short- and long-term nutritional need An important question regarding parent-nestling interactions is how features of begging relate to nestling physiological status. Nestling birds of different ages, sizes, or developmental histories may have different nutritional needs. How accurately does nestling […]

DWORKIN, Ian M.; University of Toronto: Simplifying Waddington’s Legacy: Variation, Canalization and Asymmetry Recent interest in how developmental mechanisms can influence the rate and direction of evolution has lead to new theory pertaining to canalization (developmental buffering). Several models have been explored which examine under what conditions canalization might evolve, and how canalizing mechanisms for […]

ZELDITCH, M.L.; LUNDRIGAN, B.L.; University of Michigan, Ann Arbor; Michigan State University, East Lansing: Ontogenetic dynamics of developmental regulation of skull shape The developmental processes generating and regulating morphological variation are of fundamental importance to evolution. We might expect variance to diminish during development due to intrinsic regulatory mechanisms, a hypothesis supported in the few […]

JEFFERY, J.E.; BININDA-EMONDS, O.R.P.; COATES, M.I.; RICHARDSON, M.K.; Institute of Evolutionary and Ecological Sciences, University of Leiden, NL; Technical University of Munich, Freising-Weihenstephan, Germany; Department of Organismal Biology & Anatomy, University of Chicago, USA: New methods for determining heterochronic change Developmental sequence (�event�) heterochrony is a widespread evolutionary phenomenon, although it has always proved difficult […]

OLSON, Wendy M; HALL, Brian K; Dalhousie University, Halifax NS; Dalhousie University, Halifax NS: Evolutionary Developmental Mechanisms:Space, Time and Morphology Embryonic development has long been recognized as the vehicle for evolutionary change. However, we are only beginning to understand the evolutionary and developmental processes that constitute evolutionary developmental mechanisms, which include processes of development that […]

ARENDT, Jeff; University of California, Riverside: A Preliminary Framework for Integrating Evolutionary Ecology and Development In order to link development with adaptive evolution we need to ask three questions: 1)What is the developmental basis of a given phenotypic trait? 2)How does variation in this trait depend upon the underlying developmental mechanism? and 3)What are the […]

STROTHER, J.A.; KOEHL, M.A.R.; REIDENBACH, M.; HADFIELD, M.G.; KOSEFF, J.R.; Univ. of California, Berkeley; Univ. of California, Berkeley; Stanford University; University of Hawaii; Stanford University: Which aspects of the response of marine larvae to dissolved chemical cues affects their settlement in turbulent, wave driven flow? While the larvae of many benthic marine invertebrates are known […]