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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2020

Ecology and Evolutionary Biology

Community ecology

Series

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Context-Dependent Dynamics Lead To The Assembly Of Functionally Distinct Microbial Communities, Leonora S. Bittleston, Matti Gralka, Gabriel E. Levanthal, Itzhak Mizrahi, Otto X. Cordero Mar 2020

Context-Dependent Dynamics Lead To The Assembly Of Functionally Distinct Microbial Communities, Leonora S. Bittleston, Matti Gralka, Gabriel E. Levanthal, Itzhak Mizrahi, Otto X. Cordero

Biology Faculty Publications and Presentations

Niche construction through interspecific interactions can condition future community states on past ones. However, the extent to which such history dependency can steer communities towards functionally different states remains a subject of active debate. Using bacterial communities collected from wild pitchers of the carnivorous pitcher plant, Sarracenia purpurea, we test the effects of history on composition and function across communities assembled in synthetic pitcher plant microcosms. We find that the diversity of assembled communities is determined by the diversity of the system at early, pre-assembly stages. Species composition is also contingent on early community states, not only because of …


Stoichiometric And Stable Isotope Ratios Of Wild Lizards In An Urban Landscape Vary With Reproduction, Physiology, Space And Time, Andrew M. Durso, Geoffrey David Smith, Spencer B. Hudson, Susannah S. French Feb 2020

Stoichiometric And Stable Isotope Ratios Of Wild Lizards In An Urban Landscape Vary With Reproduction, Physiology, Space And Time, Andrew M. Durso, Geoffrey David Smith, Spencer B. Hudson, Susannah S. French

Ecology Center Publications

Spatial and temporal variation in stoichiometric and stable isotope ratios of animals contains ecological information that we are just beginning to understand. In both field and lab studies, stoichiometric or isotopic ratios are related to physiological mechanisms underlying nutrition or stress. Conservation and ecosystem ecology may be informed by isotopic data that can be rapidly and non-lethally collected from wild animals, especially where human activity leaves an isotopic signature (e.g. via introduction of chemical fertilizers, ornamental or other non-native plants or organic detritus). We examined spatial and temporal variation in stoichiometric and stable isotope ratios of the toes of Uta …