3 Works

Data from: Elevating perceived predation risk modifies the relationship between parental effort and song complexity in the song sparrow (Melospiza melodia)

Melissa L. Grunst, John T. Rotenberry & Andrea S. Grunst
Adult-directed predation risk elevates costs of parental care, and may modify relationships between sexually selected ornaments and parental effort by accentuating the tradeoff between survival and parental investment. We assessed multiple hypotheses regarding the relationship between maternal effort, paternal effort, and the sexually selected trait of male song complexity in the song sparrow Melospiza melodia. Further, we explored whether experimentally elevating perceived adult-directed predation risk near nests affected these relationships. We quantified two dimensions of...

Data from: Evolving from static to dynamic signals: evolutionary compensation between two communicative signals

Emilia P. Martins, Alison G. Ossip-Klein, J. Jaime Zúñiga-Vega, Cuauhcihuatl Vital García, Stephanie M. Campos & Diana K. Hews
Signals that convey related information may impose selection on each other, creating evolutionary links between different components of the communicative repertoire. Here, we ask about the consequences of the evolutionary loss of one signal (a colour patch) on another (a motion display) in Sceloporus lizards. We present data on male lizards of four species: two pairs of sister taxa representing two independent evolutionary losses of the static colour patch (S. cozumelae and S. parvus; S....

Data from: Thermoregulatory behavior limits local adaptation of thermal niches and confers sensitivity to climate change

Lauren B. Buckley, Joseph C. Ehrenberger, & Michael J. Angilletta
1. Thermoregulation buffers environmental variation, which enables a species to persist during climate change but ultimately hinders adaptation of thermal tolerance by weakening selective pressure. 2. We used a model of optimal thermal physiology to demonstrate how thermoregulatory behaviour limits local adaptation of thermal physiology in a widespread group of lizards, the Sceloporus undulatus complex. 3. Empirical data for seven populations demonstrates conservatism of thermal tolerance, consistent with the model's prediction in the case of...

Registration Year

  • 2015
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Resource Types

  • Dataset
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Affiliations

  • Indiana State University
    3
  • University of Washington
    1
  • University of California System
    1
  • University of Minnesota
    1
  • National Autonomous University of Mexico
    1
  • Indiana University Bloomington
    1
  • Arizona State University
    1