University of Wisconsin–Madison
Warren Porter

Warren Porter

Integrative Biology Research Building

Warren Porter

Research

Thanks to the superb collaborations with my students and faculty at the UW, nationally and internationally we have been able to develop and test our user-friendly generic software, Niche Mapper and NicheMapR that can compute the local microenvironments and an animal’s coupled heat and mass balances required for survival, growth and reproductive potential for any locality on earth given the geographic coordinates and their 3D anatomy, specific physiological properties and behaviors. These computer models have been tested on more than 50 representatives of the major classes of wild vertebrates, domestic cows, and several species of invertebrates on land and at sea. We have looked at the energetics and distributions of animals in the geological past, the present and then asked the consequences of climate change on the distributions and requirements for survival and reproductive potential into the future. We have also explored environmentally relevant ultra low-level pesticide mixtures on nervous, endocrine (reproductive) and immune system functions and how they may undermine survival, growth and reproductive potential. As part of developing a mechanism for detecting subclinical infections that can impact growth and reproductive potential we received several patents for a process using a novel device that ultimately measured stable isotopes in breath in less than 30 seconds to a precision that allowed reliable detection.

Google Scholar

A collage of portraits of 8 different people and text that reads: "Climate spaces, climate cliffs and climate change: using Niche Mapper to find the future global consequences for milking cows and swinging Gibbons
Warren P. Porter, Alexa E. Bertz, Paul D. Mathewson, Luis C. Solórzano Peter N. Dudley, Riccardo Bonazza, Kifle G. Gebremedhin and
Yuke Zhang"
Warren Porter and collaborators
A collage of images of several different animals including a lizard, frog, mosquito,  goat, and sea turtle with the text: "Test it broadly by comparing computer predictions of body temperatures, activity times, microhabitat choices, food/water needs. Over 50 species tested in their habitats: amphibians, reptiles, birds, mammals, disease bearing mosquitoes, fiddler crabs, dinosaurs and wooly mammoths"
Examples of species of animals Porter and his collaborators have modeled, tested the models against field data and published their energetics and behavior in the context of their local environments.
A collage of images of several animals including a gecko, frog, bird, goat, pika, monkey, mammoth, moose and more. Text in the collage reads "Some other terrestrial vertebrates used for Niche
Mapper™ tests of
energetics, behavior & distribution on their
landscapes"