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EvoTRAC field crew during stream “bioblitz” of the remote Oyacachi basin, Ecuador, way back in 2012. Tropical mountains are the most biodiverse terrestrial ecosystems of the world, but the causes of this exceptional species richness have eluded biologists for centuries. In 1967, Dan Janzen postulated that reduced temperature seasonality in the tropics […] Alisha presented her DDIG work that addresses why mayfly species ranges are more restricted than we would predict based on thermal breadth alone. Alisha and her colleagues hypothesized that temperature acts synergistically with species interactions, such as predation, to restrict mayfly range expansion. They predicted that as mayflies move to warmer or cooler streams, […] Citation: Shah A, Gill B, Encalada A, Flecker A, Funk WC, Guayasamin JM, Kondratieff B, Poff N, Thomas S, Zamudio KR, Ghalambor CK (2017) Climate variability predicts thermal limits of aquatic insects across elevation and latitude. Functional Ecology 31, 2118-2127. […] Functional Ecology recently accepted a paper by Alisha Shah and other EVOTRAC coauthors and featured it. As predicted by theory, Alisha and her coauthors found that tropical aquatic insects have narrower thermal breadths than their temperate counterparts. Their findings also suggest that lowland tropical insects may be the most vulnerable to climate change compared […] Congratulations to undergrad Eva Bacmeister for winning 1st place for her talk at the 2017 Front Range Student Ecology Symposium held at CSU! Eva’s talk was based on her independent study of how temperature variability shapes the evolution of swimming performance (an important thermal tolerance trait) in temperate and tropical aquatic insects. Her work […] For her PhD work, Alisha has explored the effect of temperature in setting the range limits of temperate and tropical aquatic insects. So far, she has found that temperate insects that experience wide seasonal fluctuations in temperature typically have broader thermal breadths and can remain active over a wider range of temperatures. On the […] Dr. Professor Mónica Páez-Vacas A huge congratulations to Dr. Mónica Páez-Vacas for successfully defending her PhD on adaptive divergence and landscape genetics of the poison frog Epipedobates anthonyi in July. One week later, she found out she got a job as a Professor at the Universidad Tecnológica Indoamérica in her hometown of […] A view of the Oyacachi River. Napo Province, Ecuador. Photo by Andrea Encalada. Proceedings of the Royal Society London B: Biological Sciences recently accepted a paper by Brian Gill and other EVOTRAC coauthors and will feature part of their Ecuadorian study area as their journal cover. In support of the ‘Mountain Passes […] Mónica in her native habitat, the Ecuadorian Andes. Congratulations to Mónica Páez-Vacas for being awarded an NSF Doctoral Dissertation Improvement Grant (DDIG) to add genomics to her dissertation research. Mónica’s research has uncovered phenotypic divergence in size, calls, color, and thermal tolerance in the poison frog Epipedobates anthonyi across replicate elevational gradients […] Alisha demonstrating her extremely low CTmin. Alisha and the physiology research crew have found that critical thermal maximum experiments (a method traditionally used to measure the highest temperature an organism can withstand, and widely employed in studies investigating organismal response to climate change) can grossly underestimate vulnerability. Using a variety of measures […] |
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