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The ecological roles of amphibians and subsidies in ponds
(University of Missouri--Columbia, 2018)
in isolation, and what happens in and around them influences their food webs and connections to nearby terrestrial ecosystems. Habitat alterations near ponds have strong potential to reduce animal diversity. In freshwater systems, loss of sensitive species...
Assessing the effects of anticoagulant rodenticides on non-target fish species
(University of Missouri--Columbia, 2018)
event was reported on Ni'ihau and a dead whale calf also was found around the same time. Analysis of the affected fish were done and found no rodenticide in tissues. Despite these results, concerns of AR exposure to non-target species such as fish were...
The effects of metal contamination on larval white sturgeon in the upper Columbia River
(University of Missouri--Columbia, 2018)
Sturgeon populations are imperiled worldwide. Declines are attributed to many factors including habitat degradation and alteration, overexploitation, and contamination. In North America, white sturgeon (Acipenser transmontanus) ...
Genome-wide exploration of direct GBX2 target genes and their contributions to mouse development
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The cells that comprise the vertebrate nervous system require molecular cues to determine their cellular position, identity and their ability to make ...
Plasticity of neurons in mouse major pelvic ganglia in response to loos of physiological input in cases of nerve injury and spinal cord injury
(University of Missouri--Columbia, 2018)
Autonomic dysfunctions present significant effects on day to day functions of spinal cord-injured patients. Most people with spinal cord injury (SCI) reported a desire to recover autonomic functions such as bladder and ...
The evolution of complex calls In meadow Katydids
(University of Missouri--Columbia, 2018)
Meadow Katydids (genera Orchelimum and Conocephalus) are a specious group often are found in habitats with several species within the group living in sympatry. They produce complex calls with two distinct phrases, "buzzing" ...
Genetic diversity and distribution of the ringed salamander (ambystoma annulatum) across multiple spatial scales
(University of Missouri--Columbia, 2018)
Species distributions are governed by a complex suite of abiotic and biotic interactions that govern movement of individuals and are variable through time and space. These dynamic processes, such as shifts in temperature ...
PopZ and FtsZ coordinate polar growth termination and cell division in Agrobacterium tumefaciens
(University of Missouri--Columbia, 2018)
Understanding how bacterial cells expand their cell walls is an important question with relevance to development of antibiotics. While many studies have focused on the regulation of bacterial elongation utilizing lateral ...
Developmental programming by xenoestrogens
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Xenoestrogens (XE) are chemicals in the environment that mimic the body's natural steroidal estrogens. Developmental exposure to XE may interfere with ...
Motor neuron output in the crustacean cardiac ganglion is organized and maintained by homeostatic conductance relationships
(University of Missouri--Columbia, 2013)
Generating appropriate and functional neuronal output is a matter of fundamental importance to nervous systems across species and phyla. Potential perturbations to a neurons intrinsic excitability alone include Hebbian ...
Seasonality and elevational migration in an Andean bird community
(University of Missouri--Columbia, 2010)
Life history strategies of many birds in the Neotropics remain poorly known. In particular, details on the seasonal movements of individuals and populations within the Neotropics remain largely unknown, including short-distance ...
Roles for the adhension molecule Contactin2 in the development and function of neural circuits in zebrafish
(University of Missouri--Columbia, 2018)
Neuronal migration and axon guidance are critical developmental processes that are essential for establishing functional neural circuits underlying complex cognitive and motor functions. Precise neuronal migration and axon ...
Friends in high places : ecology of mycorrhizal associations in alpine plant communities
(University of Missouri--Columbia, 2010)
Mutualisms are ubiquitous in nature, yet these interactions often vary in strength and persistence. This variation raises the questions of what determines whether mutualisms persist or vanish, and how does variation in the ...