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Dr. Peter H. Niewiarowski

Sceloporus undulatus

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Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Reciprocal Transplant Reveals Sources Of Variation In Growth Rates Of The Lizard Sceloporus Undulatus, Peter Niewiarowski, Willem Roosenburg Mar 2015

Reciprocal Transplant Reveals Sources Of Variation In Growth Rates Of The Lizard Sceloporus Undulatus, Peter Niewiarowski, Willem Roosenburg

Dr. Peter H. Niewiarowski

Geographic variation in life history phenotypes between population of a single species is often assumed to reflect genetic divergence caused by natural selection. The relative contribution of genetic and environmental sources of phenotypic variation is plasticity induced by proximate environmental variation and genetic divergence is fundamental to understanding the ecological and evolutionary significance of geographic variation.


Effects Of Supplemental Feeding And Thermal Environment On Growth Rates Of Eastern Fence Lizards, Sceloporus Undulatus, Peter Niewiarowski Mar 2015

Effects Of Supplemental Feeding And Thermal Environment On Growth Rates Of Eastern Fence Lizards, Sceloporus Undulatus, Peter Niewiarowski

Dr. Peter H. Niewiarowski

Geographic variation in growth rates of the eastern fence lizard, Sceloporus undulatus, is extensive and has been interpreted in various ways.


Phylogenetic Comparative Analysis Of Life-History Variation Among Populations Of The Lizard Sceloporus Undulatus: An Example And Prognosis, Peter Niewiarowski, Michael Angilletta, Adam Leache Mar 2015

Phylogenetic Comparative Analysis Of Life-History Variation Among Populations Of The Lizard Sceloporus Undulatus: An Example And Prognosis, Peter Niewiarowski, Michael Angilletta, Adam Leache

Dr. Peter H. Niewiarowski

Over the past 15 years, phylogenetic comparative methods (PCMs) have become standard in the study of life-history evolution. To date, most studies have focused on variation among species or higher taxonomic levels, generally revealing the presence of significant phylogenetic effects as well as residual variation potentially attributable to adaptive evolution.