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Articles 1 - 8 of 8
Full-Text Articles in Other Ecology and Evolutionary Biology
Wildlands Conservancy/Connick Ranch Research, Susie Van Kirk
Wildlands Conservancy/Connick Ranch Research, Susie Van Kirk
Susie Van Kirk Papers
Susie Van Kirks research notes on the Wildlands Conservancy and Connick Ranch. Includes newspaper references, interviews, as well as deed, survey and patent information.
Niche Syndromes, Species Extinction Risks, And Management Under Climate Change, Dov F. Sax, Regan Early, Jesse Bellemare
Niche Syndromes, Species Extinction Risks, And Management Under Climate Change, Dov F. Sax, Regan Early, Jesse Bellemare
Biological Sciences: Faculty Publications
The current distributions of species are often assumed to correspond with the total set of environmental conditions under which species can persist. When this assumption is incorrect, extinction risk estimated from species distribution models can be misleading. The degree to which species can tolerate or even thrive under conditions found beyond their current distributions alters extinction risks, time lags in realizing those risks, and the usefulness of alternative management strategies. To inform these issues, we propose a conceptual framework within which empirical data could be used to generate hypotheses regarding the realized, fundamental, and 'tolerance' niche of species. Although these …
Patch Burning: Integrating Fire And Grazing To Promote Heterogeneity, John R. Weir, Samuel D. Fuhlendorf, David M. Engle, Terrence G. Bidwell, D. Chad Cummings, R. Dwayne Elmore, Ryan F. Limb, Brady W. Allred, J. Derek Scasta, Stephen L. Winter
Patch Burning: Integrating Fire And Grazing To Promote Heterogeneity, John R. Weir, Samuel D. Fuhlendorf, David M. Engle, Terrence G. Bidwell, D. Chad Cummings, R. Dwayne Elmore, Ryan F. Limb, Brady W. Allred, J. Derek Scasta, Stephen L. Winter
United States Fish and Wildlife: Staff Publications
Heterogeneity refers to the differences in habitats across the landscape, and it is required for diverse plant and wildlife communities. Some heterogeneity is inherent, caused by differences in soils, while most heterogeneity is disturbance driven. Climate, fire, and grazing are the main three disturbance factors that have historically shaped the landscape. All three are still very important to the continued diversity and health of the plants and animals associated with our prairies, shrublands, and forestlands across the Great Plains. While we cannot control the climate, we can manage grazing by stocking rate, season of use, and kind and type of …
Effects Of Increased Nitrogen Deposition On The Dominance Of Hedera Helix In The Pacific Northwest, Bianca Christine Dolan
Effects Of Increased Nitrogen Deposition On The Dominance Of Hedera Helix In The Pacific Northwest, Bianca Christine Dolan
Dissertations and Theses
Increased nitrogen deposition has been shown to promote the dominance of invasive species, and nitrogen deposition rates have steadily increased in most of the Western United States in recent years due to population increases. The purpose of this study was to determine if increased rates of nitrogen deposition are contributing to the success of Hedera helix in the Pacific Northwest. Plots were established in Lesser Park in Portland, Oregon and received monthly treatments of ammonium nitrate for one year. Growth, measured as change in percent cover, was compared between treated and untreated plots for both H. helix and native species. …
A Distributed Intelligence Approach To Multidisciplinarity: Encouraging Divergent Thinking In Complex Science Issues In Society., Jarod Kawasaki, Dai Toyofuku
A Distributed Intelligence Approach To Multidisciplinarity: Encouraging Divergent Thinking In Complex Science Issues In Society., Jarod Kawasaki, Dai Toyofuku
The STEAM Journal
The scientific issues that face society today are increasingly complex, open-ended and tentative (Sadler, 2004). Finding solutions to these issues, not only requires an understanding of the science, but also, concurrently dealing with political, social, and economic dimensions that exist (Hodson, 2003). For example, 40 years after the first congressional hearing on climate change held by Al Gore in 1976, the 2012 Intergovernmental Panel on Climate Change (IPCC) report states that climate change is still getting worse, despite efforts by governments, businesses, social actors such as Non-Government Organizations, and scientists. With the top minds in the world, across all disciplines, …
Factors Influencing The Establishment And Survival Of Native Hardwood Tree Seedlings Of The Kentucky Inner Bluegrass Blue Ash-Oak Savanna-Woodland, James D. Shaffer
Factors Influencing The Establishment And Survival Of Native Hardwood Tree Seedlings Of The Kentucky Inner Bluegrass Blue Ash-Oak Savanna-Woodland, James D. Shaffer
Theses and Dissertations--Biology
Historically, the Kentucky Inner Bluegrass blue ash-oak savanna-woodland was the primary ecosystem of the Inner Bluegrass Region (IBR) of Kentucky. After European settlement, the majority (>99%) of Bluegrass savanna was converted to agricultural and urban land uses. Currently remnant savanna tree species are failing to recruit. Therefore, a long-term restoration ecology project researching competition and disturbance on seedling establishment, survival, and growth has been established at Griffith Woods (the largest remaining savanna in Kentucky) in Harrison Co., KY. Fourteen native hardwood tree species (a total of 6,168 seedlings) have been experimentally planted. Light, soil, surrounding vegetation, and herbivory, factors …
Range Maps For Nebraska's Threatened And Endangered Species, Nebraska Natural Heritage Program
Range Maps For Nebraska's Threatened And Endangered Species, Nebraska Natural Heritage Program
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This document includes maps and associated information on the ranges of Nebraska’s federal and state-listed species. The information is current as of January 2013. The information is updated as needed. Contact the Nebraska Game and Parks Commission to determine if a more current version is available. The species treated are as follows: American Burying Beetle (Nicrophorus americanus), Salt Creek Tiger Beetle (Cicindela nevadica lincolniana), Swift Fox (Vulpes velox), River Otter (Lutra canadensis), Southern Flying Squirrel (Glaucomys volans), Pallid Sturgeon (Scaphirhyncus albus), Topeka Shiner (Notropis topeka), Sturgeon Chub (Macrhybopsis gelida), Blacknose Shiner (Notropis heterolepis), Lake Sturgeon (Acipenser fulvescens), Northern Redbelly Dace …
The “Curse Of Rafinesquina:” Negative Taphonomic Feedback Exerted By Strophomenid Shells On Storm-Buried Lingulids In The Cincinnatian Series (Katian, Ordovician) Of Ohio, Rebecca Freeman, Benjamin Dattilo, Aaron Morse, Michael Blair, Steve Felton, John Pojeta
The “Curse Of Rafinesquina:” Negative Taphonomic Feedback Exerted By Strophomenid Shells On Storm-Buried Lingulids In The Cincinnatian Series (Katian, Ordovician) Of Ohio, Rebecca Freeman, Benjamin Dattilo, Aaron Morse, Michael Blair, Steve Felton, John Pojeta
Benjamin F. Dattilo
Taphonomic feedback is the idea that accumulation of organic remains either enhances the habitat for some organisms (positive taphonomic feedback), and/or degrades the habitat for others (negative taphonomic feedback). Examples of epibionts living on skeletal remains are direct evidence of positive taphonomic feedback. Disruption of infaunal burrowing activities by skeletal fragments is an example of negative taphonomic feedback; direct fossil evidence of this phenomenon has not been documented previously. Infaunal organisms are vulnerable to exhumation or entombment during storms, but organisms that burrow can also re-establish viable life positions subsequently. For example, when modern lingulids re-burrow after exhumation, they first …