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Articles 1 - 13 of 13
Full-Text Articles in Life Sciences
Urbanization And Population Growth: Projected Impacts Of Growth On Ecological Resources In Ontario1, Laura J. Bozzelli
Urbanization And Population Growth: Projected Impacts Of Growth On Ecological Resources In Ontario1, Laura J. Bozzelli
International ResearchScape Journal
No abstract provided.
Songbird Use Of Problem-Solving Feeders In Urban And Rural Areas, Kayce Miller
Songbird Use Of Problem-Solving Feeders In Urban And Rural Areas, Kayce Miller
College of Science and Health Theses and Dissertations
Behavioral flexibility is important for animals to adapt to novel situations in their environment. It has been suggested that birds living in complex environments (e.g., urban areas) should be more flexible than conspecifics in less complex environments. Birds are a particularly well studied group, where novel foraging problems are used to assess flexibility and problem-solving performance of urban and rural animals of the same species; however, this is most frequently done in a lab setting with wild-caught birds originating from different habitats. Using a field-based method to test problem-solving performance should give additional insight into other factors influencing birds’ flexibility. …
Does Urbanization Drive Evolution In White Clover?, Victor Alfonso, Seika Shiba, Yangjie Tan, Philips Akinwole
Does Urbanization Drive Evolution In White Clover?, Victor Alfonso, Seika Shiba, Yangjie Tan, Philips Akinwole
Annual Student Research Poster Session
No abstract provided.
The Diversity And Distribution Of Spiders (Arachnida: Araneae) Along An Outdoor – Indoor Habitat Gradient: Preliminary Findings From Piedmont Virginia, William Kish, Sujan Henkanaththegedara
The Diversity And Distribution Of Spiders (Arachnida: Araneae) Along An Outdoor – Indoor Habitat Gradient: Preliminary Findings From Piedmont Virginia, William Kish, Sujan Henkanaththegedara
Virginia Journal of Science
Although the United States supports a considerable diversity of spiders, some aspects of spider habitat use and niche specialization are poorly documented. Specifically, little attention has been given to explore how urban development affects the diversity and abundance of arthropods. We sampled spiders along an outdoor – indoor habitat gradient at Longwood University to understand the impact of urbanization on species diversity and abundance. We found 50 taxa of spiders belonging to 43 genera and 16 families. Overall, the most abundant spider family across three sampling sites was Araneidae (orb-weavers; 18.2%) followed by Lycosidae (wolf spiders; 14.8%), Salticidae (jumping spiders; …
Impact Of The Degree Of Urbanization On Bird Abundance And Diversity, Gabrielle Doyle, Sheila Garcia, Sophie Kidd, Tra'dayja Smith
Impact Of The Degree Of Urbanization On Bird Abundance And Diversity, Gabrielle Doyle, Sheila Garcia, Sophie Kidd, Tra'dayja Smith
Fall Showcase for Research and Creative Inquiry
Bird diversity and abundance in Farmville, Virginia. Sampling twice a day, four days a week.
The Effects Of Urbanization On Avian Seed Dispersal Success Of Toxicodendron Radicans (Anacardiaceae), Amber M. Stanley
The Effects Of Urbanization On Avian Seed Dispersal Success Of Toxicodendron Radicans (Anacardiaceae), Amber M. Stanley
Electronic Theses and Dissertations
Urbanization is increasing at a dramatic rate as the human population increases. While it is well-known that urbanization tends to decrease species diversity (i.e., biotic homogenization), it is not known how urbanization affects the frequency and efficiency of species interactions. Seed dispersal is a plant-animal interaction that depends on disperser feeding rate, disperser diversity, probability of seed dispersal and germination. How these factors are affected by urbanization however is unknown. In this study, we evaluate how urbanization alters these factors. Urban sites had 2x higher feeding rate and 3x higher number of disperser species. The probability of seed dispersal however …
The Traits That Predict The Magnitude And Spatial Scale Of Forest Bird Responses To Urbanization Intensity, Grant D. Paton, Alexandra V. Shoffner, Andrew M. Wilson, Sara A. Gagné
The Traits That Predict The Magnitude And Spatial Scale Of Forest Bird Responses To Urbanization Intensity, Grant D. Paton, Alexandra V. Shoffner, Andrew M. Wilson, Sara A. Gagné
Environmental Studies Faculty Publications
As humans continue moving to urban areas, there is a growing need to understand the effects of urban intensification on native wildlife populations. Forest species in remnant habitat are particularly vulnerable to urban intensification, but the mechanisms behind these effects are poorly understood. An understanding of how species traits, as proxies for mechanisms, mediate the effects of urban intensification on forest species can help fill this knowledge gap. Using a large point count dataset from the Second Pennsylvania Breeding Bird Atlas, we tested for the effects of species traits on the magnitude and spatial scale of the responses of 58 …
A Bug Eat Bug World : Does Urbanization Decrease Survivorship Of Pollinators., Amy L. Cherry
A Bug Eat Bug World : Does Urbanization Decrease Survivorship Of Pollinators., Amy L. Cherry
College of Arts & Sciences Senior Honors Theses
Human impact on the environment is responsible for the sixth mass extinction on Earth as well as rapid population declines in many taxa. Land use change, via increasing urbanization and intensity of agricultural practices, is the most important aspect of human impact on the environment, and it is associated with population decline and extinction in several taxa, but especially in pollinator species. Pollinators, which are essential for crop production, are experiencing declines as a result of the loss of habitat and host plants associated with urbanization. Urbanization negatively affects pollinators, but in the wake of lost naturalized habitat, some researchers …
Dynamics Of Utah's Agricultural Landscapes In Response To Urbanization: A Comparison Between Irrigated And Non-Irrigated Agricultural Lands, Enjie Li, Joanna Endter-Wada, Shujuan Li
Dynamics Of Utah's Agricultural Landscapes In Response To Urbanization: A Comparison Between Irrigated And Non-Irrigated Agricultural Lands, Enjie Li, Joanna Endter-Wada, Shujuan Li
Environment and Society Faculty Publications
In the literature on how urbanization affects agricultural landscapes, little attention has been focused on differentiating and comparing the changes in irrigated agricultural landscapes to non-irrigated agricultural landscapes. Additionally, there have been few applications of landscape metrics for understanding agricultural landscape changes. The objectives of this study were to:(1) analyze and compare the changes of both irrigated and non-irrigated agricultural lands in a rapidly growing region; (2) identify the spatial patterns and hotspots of these changes; and,(3) examine the spatial relationships between changes in agricultural landscapes and urban development. We adopted landscape metrics and gradient analysis to assess where and …
Urban Colonization Through Multiple Genetic Lenses: The City‐Fox Phenomenon Revisited, Alexandra L. Decandia, Kristin Brzeski, Elizabeth Heppenheimer, Catherine V. Caro, Glauco Camenisch, Peter Wandeler, Carlos Driscoll
Urban Colonization Through Multiple Genetic Lenses: The City‐Fox Phenomenon Revisited, Alexandra L. Decandia, Kristin Brzeski, Elizabeth Heppenheimer, Catherine V. Caro, Glauco Camenisch, Peter Wandeler, Carlos Driscoll
Michigan Tech Publications
Urbanization is driving environmental change on a global scale, creating novel environments for wildlife to colonize. Through a combination of stochastic and selective processes, urbanization is also driving evolutionary change. For instance, difficulty in traversing human‐modified landscapes may isolate newly established populations from rural sources, while novel selective pressures, such as altered disease risk, toxicant exposure, and light pollution, may further diverge populations through local adaptation. Assessing the evolutionary consequences of urban colonization and the processes underlying them is a principle aim of urban evolutionary ecology. In the present study, we revisited the genetic effects of urbanization on red foxes …
2010 - California Agricultural Vision - Strategies For Sustainability
2010 - California Agricultural Vision - Strategies For Sustainability
Miscellaneous Documents and Reports
California is a major contributor to the global food supply and to the national security of the United States. To keep pace with growing demand for food, as the world’s population continues to expand, California agriculture must remain profitable and competitive in a global market by efficiently using resources and controlling production costs. California faces unprecedented challenges to its sustainability in the form of pressures on its profitability and productivity related to water, regulations, labor, invasive species, urbanization and many other factors.
Temporal Variation Of Moose–Vehicle Collisions In Alaska, Lucian R. Mcdonald, Terry A. Messmer, Michael R. Guttery
Temporal Variation Of Moose–Vehicle Collisions In Alaska, Lucian R. Mcdonald, Terry A. Messmer, Michael R. Guttery
Human–Wildlife Interactions
Collisions between vehicles and wildlife have long been recognized to pose threats to motorists and wildlife populations. In addition to the risk of injury or mortality faced by the motorists involved in wildlife-vehicle collisions (WVCs), other drivers are also put at risk due to road obstructions and traffic congestions associated with WVCs. Most WVCs in Alaska involve moose (Alces alces), an animal that is sufficiently large to pose a threat to property and human life when involved in collisions. We analyzed the temporal variation in the number of moose–vehicle collisions (MVCs) reported in the 4 most populous boroughs …
Do Disturbed Environments Affect Density Of The Tunnel-Web Spider Acanthogonatus Centralis (Mygalomorphae: Nemesiidae) From Native Grasslands In Argentina?, Gabriel Pompozzi, Leonela Schwerdt, Sofia Copperi, Nelson Ferretti
Do Disturbed Environments Affect Density Of The Tunnel-Web Spider Acanthogonatus Centralis (Mygalomorphae: Nemesiidae) From Native Grasslands In Argentina?, Gabriel Pompozzi, Leonela Schwerdt, Sofia Copperi, Nelson Ferretti
Turkish Journal of Zoology
Disturbance is an important factor affecting community composition and biodiversity in natural ecosystems. The Ventania hill system in central Argentina presents several ecosystem disturbances. Spiders are good candidates for studies related to human impact and conservation, as they can be good biological indicators of certain ecosystems. Therefore, we tried to elucidate if the abundance and spatial distribution of the mygalomorph spider Acanthogonatus centralis (Nemesiidae) are affected by different degrees of disturbance in these hilly grasslands. We studied 3 sites with different levels of disturbance located in the Ventania system in southwestern Buenos Aires Province, Argentina. We did not find differences …