4 Works

Data from: Correction of location errors for presence-only species distribution models

Trevor J. Hefley, David M. Baasch, Andrew J. Tyre & Erin E. Blankenship
1. Species distribution models (SDMs) for presence-only data depend on accurate and precise measurements of geographic and environmental covariates that influence presence and abundance of the species. Some data sets, however, may contain both systematic and random errors in the recorded location of the species. Environmental covariates at the recorded location may differ from those at the true location and result in biased parameter estimates and predictions from SDMs. 2. Regression calibration is a well-developed...

Data from: The tree of life and a new classification of bony fishes

Ricardo Betancur-R., Adela Roa-Varon, Nancy I. Holcroft, W. Calvin Borden, Terry Grande, Kent Carpenter, Millicent Sanciangco, Chenhong Li, Dahiana Arcila, Jesus A Ballesteros, Guillermo Ortí, J. Andrés López, Matthew A. Campbell, Edward O. Wiley, Gloria Arratia, Guoqing Lu, Stuart Willis, Richard E. Broughton, Cureton II, James C, Feifei Zhang & Daniel J. Hough
The tree of life of fishes is in a state of flux because we still lack a comprehensive phylogeny that includes all major groups. The situation is most critical for a large clade of spiny-finned fishes, traditionally referred to as percomorphs, whose uncertain relationships have plagued ichthyologists for over a century. Most of what we know about the higher-level relationships among fish lineages has been based on morphology, but rapid influx of molecular studies is...

Data from: Nutrient regulation strategies differ between cricket morphs that trade-off dispersal and reproduction

Rebecca M. Clark, Ashley McConnell, Anthony J. Zera & Spencer T. Behmer
1. Nutrient regulation should covary with life history, but actual demonstrations of this connection are rare. 2. Here we use a wing-polymorphic cricket, Gryllus firmus, that trades-off dispersal and reproduction; the long-winged morph with functional flight muscles (LW(f)) is adapted for dispersal at the expense of egg production, while the short-winged (SW) morph is adapted for egg production at the expense of flight. We explore the extent to which these two morphs differentially regulate macronutrient...

Data from: Spatial and temporal unpredictability of colony size in cliff swallows across 30 years

Charles R. Brown, Mary B Brown, Erin A. Roche & Mary Bomberger Brown
Most colonially breeding animals occupy colonies that range in size from a few pairs to thousands of individuals, but the causes of colony size variation are largely unknown. Three general hypotheses are: (1) that variation in colony size is maintained by fluctuating selection via spatial and temporal changes in fitness associated with different colony sizes; (2) that colony formation reflects heterogeneity in habitat, with some sites having resources to support more individuals than others; and...

Registration Year

  • 2013
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  • University of Nebraska–Lincoln
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