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Ecology and Evolutionary Biology Commons™
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- Biotelemetry (3)
- Ecology (3)
- Graptemys geographica (2)
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- Altered Landscape (1)
- Aphaenogaster picea (1)
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- Hellbender telemetry movement captive-release salamander headstart (1)
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Articles 1 - 10 of 10
Full-Text Articles in Ecology and Evolutionary Biology
Filamentous Green Algae (Cladophora Glomerata) In Near Shore Lake Ontario: An Investigation Of Tissue And Water Nutrient Dynamics Through A Period Of Growth And Decomposition., James L. Wagner Jr
Filamentous Green Algae (Cladophora Glomerata) In Near Shore Lake Ontario: An Investigation Of Tissue And Water Nutrient Dynamics Through A Period Of Growth And Decomposition., James L. Wagner Jr
Biology Theses
Cladophora glomerata, a filamentous green alga abundant in the Laurentian Great Lakes, has long been considered a nuisance throughout the region. Previous phosphorus (P) abatement practices and legislation successfully reduced the abundance of the algae, but with the introduction of dreissenid mussels, a resurgence has been observed. Though there is substantial literature and modeling of the growth cycle of Cladophora, relatively little research has been dedicated to the decomposition stage of the algae, a period which may contribute to a substantial influx of nutrients to near-shore environmental regions. By first examining a period of in-situ growth within Lake …
Regional-Scale Climate-Induced Variation In Ant Physiology And Morphology, Daniel E. Murphy
Regional-Scale Climate-Induced Variation In Ant Physiology And Morphology, Daniel E. Murphy
Biology Theses
The biology of ectotherms such as insects is influenced by ambient thermal conditions. Ants are a ubiquitous and ecologically important group of insects and are well-established as bioindicators of thermal conditions. Ants are sensitive to the thermal extremes that vary with latitude, elevation, and land use, and these thermal gradients influence their spatial and temporal distributions. As a result, ants have evolved physiological and morphological thermal adaptations in response to the thermal environment of their habitats. These adaptations include increased physiological and morphological tolerance for temperature extremes. In Western New York (WNY), temperatures are temporally and spatially heterogeneous, changing with …
Movements And Behaviors Of Resident And Translocated Northern Map Turtles (Graptemys Geographica) In The Upper Niagara River With Artificial Basking/Nesting Platforms As A Management Strategy, Chelsea L. Moore
Biology Theses
Urbanization and degradation of riparian zones has contributed to the decline of fish and wildlife populations throughout the world. Northern Map Turtles (Graptemys geographica) in the upper Niagara River face similar declines due to shoreline development and the concurrent loss of backwater habitats and terrestrial nesting sites. A project was initiated in which basking/nesting platforms were created, and Northern Map Turtles from a Lake Erie population were translocated into the river. Resident and translocated turtles were tracked using biotelemetry and their habitat use, behaviors, and swimming paths were compared. Translocated turtles exhibited homing behavior and had longer home …
Reproductive Effort And Lipid Dynamics Of The Emerald Shiner (Notropis Atherinoides) In The Upper Niagara River, New York, Christopher A. Osborne
Reproductive Effort And Lipid Dynamics Of The Emerald Shiner (Notropis Atherinoides) In The Upper Niagara River, New York, Christopher A. Osborne
Biology Theses
Life history theory predicts that reproductive characteristics of organisms will be shaped by biotic and abiotic factors to maximize their overall fitness. In this study, I investigated how growth, reproductive effort, and lipid dynamics vary ontogenetically and seasonally for emerald shiners (Notropis atherinoides) in the upper Niagara River. Growth rates were highest in age 2 shiners and lower in age 1 and age 3 individuals. Evidence of reproduction was found beginning at age 1, and reproductive investment as measured by ovarian lipid content was lowest in age 1 and age 2 individuals and greatest in age 3 fish. …
An Analysis Of Morphometric Differentiation In Lake And River Populations Of The Emerald Shiner, Notropis Atherinoides, John J.V. Lang
An Analysis Of Morphometric Differentiation In Lake And River Populations Of The Emerald Shiner, Notropis Atherinoides, John J.V. Lang
Biology Theses
Understanding mechanisms that account for phenotypic variation has been of interest to biologists since the advent of Darwin’s theory of evolution by natural selection. It is now understood that adaptive divergence is a key driving force of intraspecific differentiation. Further, differences in habitat (e.g., flow regime, prey regime) have been shown to drive adaptive divergence in fish. For instance, fish inhabiting faster flowing water generally exhibit more fusiform bodies than their lake counterparts. Similarly, the partitioning of benthic and pelagic morphs generally results in smaller heads with the latter. This study used geometric shape analysis to assess morphological differences between …
Do Novel Weapons That Degrade Mycorrhizal Mutualisms Explain Invasive Species Success?, Philip L. Pinzone Mr.
Do Novel Weapons That Degrade Mycorrhizal Mutualisms Explain Invasive Species Success?, Philip L. Pinzone Mr.
Biology Theses
Invasive plants often dominate novel habitats where they did not co-evolve with local species. Several hypotheses suggest mechanisms that explain increased exotic plant success, including 'novel weapons' and 'degraded mutualisms'. Japanese knotweed (Fallopia japonica) and European buckthorn (Rhamnus cathartica) are widespread plant invaders in North America that can dominate ecosystems. The goal of this study is to test whether these impacts are more consistent with novel weapons or degraded mutualism hypotheses. I examine tree seedling recruitment, (germination and initial survival) growth, (biomass) and mycorrhizal invasion (AMF content) as a function of F. japonica and R. cathartica …
Home Range, Habitat Use, And Movements Of Native Northern Map Turtles (Graptemys Geographica), And Sympatric Invasive Red-Eared Slider Turtles (Trachemys Scripta Elegans), In The Upper Niagara River, Brian E. Haas
Biology Theses
Turtle populations throughout the world are in decline due to the effects associated with anthropogenic disturbances. Northern map turtles in the Upper Niagara River are facing the same effects associated with shoreline development, pollution, and human induced mortality. A biotelemetric study was conducted to understand the population structure, habitat use, and behavior of northern map turtles in the Upper Niagara River. Turtles were trapped, outfitted with radio and sonic transmitters, and tracked from August 2013 until April 2015. Invasive red-eared sliders, which also inhabit the Niagara River were captured and tracked to allow for comparison. This invasive species is a …
Forest Sustainability In An Altered Landscape Requires Human Intervention, Adam C. Labatore
Forest Sustainability In An Altered Landscape Requires Human Intervention, Adam C. Labatore
Biology Theses
Recruitment success determines the abundance and composition of plant communities. Successful recruitment can be summarized as a simple dichotomy of establishment versus seed limitations. Establishment limitation occurs when plant populations are inhibited by habitat availability and quality, whereas seed limitation occurs when seeds fail to arrive in necessary densities. Recruitment failure undermines overstory sustainability if the existing trees cannot replace themselves. Preliminary analysis indicated tree recruitment failure at an urban nature preserve with too few tree seedlings to replace mature canopy trees. These data suggested that the urban forest was not sustainable. The overarching goal of the study was to …
Comparison Of Movement Patterns In Captive-Released Eastern Hellbenders (Cryptobranchus Alleganiensis Alleganiensis) Using Three Different Release Methods, Julie A. Boerner
Comparison Of Movement Patterns In Captive-Released Eastern Hellbenders (Cryptobranchus Alleganiensis Alleganiensis) Using Three Different Release Methods, Julie A. Boerner
Biology Theses
Eastern hellbender (Cryptobranchus alleganiensis alleganiensis) population size has declined throughout much of its range. Previous captive-release headstarting programs have resulted in minimal success, presumably due to movement of captive-released animals away from the release site. This study aimed to increase the success of hellbender headstarting programs by assessing the effectiveness of three release methods. Releases were conducted in two stream sites within the Allegheny River drainage. Streams were similar; however stream A contained a higher boulder density. In each site, three salamanders were placed individually in cages, three salamanders were placed individually in nest boxes with the entrance …
Homing Behavior In Response To Displacement And Orientation Of The Northern Diamondback Terrapin (Malaclemys Terrapin Terrapin) In Barnegat Bay, New Jersey, Nicole M. Lainhart
Homing Behavior In Response To Displacement And Orientation Of The Northern Diamondback Terrapin (Malaclemys Terrapin Terrapin) In Barnegat Bay, New Jersey, Nicole M. Lainhart
Biology Theses
Increasing urbanization of the Barnegat Bayestuary in New Jersey has subjected northern diamondback terrapins to substantial habitat loss. Understanding whether terrapins have homing behavior, and determining the types of orientation cues they use to aid in this behavior, is important for conservation management. To test their homing behavior, nine non-gravid female terrapins were outfitted with biotelemetry tracking devices and data loggers and were displaced 4 km north and/or south. Eight of nine terrapins successfully returned home; the one terrapin that did not return home was inadvertently captured in a crab pot. Urbanization and shoreline development of the north displacement location …