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Experimenting with multistressors: intraspecific variation in behaviors, tolerances, and distributions
(2020-12-18)
Understanding organisms’ behavioral, spatial, and physiological responses to stress is critically important for successfully predicting and managing population declines and extinctions. Currently, climate change is ...
Ecological context and the evolution of mating biases in a freshwater amphipod species complex.
(2007)
Mating traits are among the most extravagant traits found in nature. As with any trait, understanding the diversification of mating traits requires information on both direct and indirect selection acting on the traits and ...
Population dynamics and long-term impacts of the invasive zebra mussel (Dreissena polymorpha) in a subtropical reservoir
(2018)
As humans continue to advance through the Anthropocene, we find that among other impacts, the rate at which species expand their range and are transplanted into new environments continues to increase. As the frequency of ...
The immunobiology of the Asian clam, Corbicula fluminea /
(1984)
The freshwater bivalve, Corbicula fluminea, was selected for the study of the internal defense mechanisms of hemocoelic invertebrates. Corbicula hemocytes, the primary effector cells involved in defense reactions, consisted ...
Impact of environmental (pH) change in a model aquatic herbivore: from genes to populations
(2016-05)
Organisms are subjected to a variety of environmental stressors in which they must respond in order to survive and reproduce. While some individuals are able to adjust to these stressors and live to produce offspring and ...
Aerial versus aquatic gas exchange in salamanders in response to environmental hypercapnia /
(1984)
All animals, acclimated at 20(DEGREES)C and LD 12:12, were subjected to a 3 hr control period of normoxic normocapnia in both media. Necturus was then exposed to aquatic hypercapnia of P(, CO(, 2)) = 20-130 mm Hg, and the ...
PALEOECOLOGY OF MEDIAL CRETACEOUS DINOSAURS FROM WESTERN NORTH AMERICA
(2018-08)
This dissertation is broken into four chapters. In chapter I, I cover background literature and set the framework for the following chapters by describing the relationship between dinosaur ecology and ontogeny. In chapters ...
Physical characterization of the ecdysteroid and retinoid X receptor (UpEcR and UpRXR) in the fiddler crab Uca pugilator.
(2003)
Ecdysteroid hormones regulate growth, metamorphic differentiation, vitellogenesis, and oogenesis in insects. In crustaceans, molt, limb regeneration, and reproduction are closely related to ecdysteroid titers. In the fiddler ...
THE DIVERGENCE OF SOXE GENE FUNCTION DURING VERTEBRATE EVOLUTION
(2014-05-09)
Evolutionary developmental biology (evo-devo) is the study of how developmental mechanisms that shape organisms have changed through evolutionary time. A central question in evo-devo asks how early vertebrates may have ...