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Environmental Assessment : Middle Salt Creek Canyon Access Plan Canyonlands National Park, Utah, National Park Service, U.S. Department Of The Interior, Canyonlands National Park Jan 2002

Environmental Assessment : Middle Salt Creek Canyon Access Plan Canyonlands National Park, Utah, National Park Service, U.S. Department Of The Interior, Canyonlands National Park

Canyonlands Research Bibliography

Salt Creek is the largest drainage in the Needles district of Canyonlands National Park. The creek supports one of the most important riparian ecosystems in the park. It is also the heart of the Salt Creek National Register Archeological District, the area with the highest recorded density of archeological sites in the park. A tributary canyon contains the spectacular Angel Arch, a well-known geologic formation that for many years has been a destination point for park visitors. In 1998 the U.S. District Court for the State of Utah ruled, in a lawsuit filed by the Southern Utah Wilderness Alliance, that …

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Biological Soil Crusts : Webs Of Life In The Desert, Jayne Belnap Jan 2002

Biological Soil Crusts : Webs Of Life In The Desert, Jayne Belnap

Canyonlands Research Bibliography

No abstract provided.

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Safeguarding Species, Languages, And Cultures In The Time Of Diversity Loss: From The Colorado Plateau To Global Hotspots, Gary Paul Nabhan, Patrick Pynes, Tony Joe Jan 2002

Safeguarding Species, Languages, And Cultures In The Time Of Diversity Loss: From The Colorado Plateau To Global Hotspots, Gary Paul Nabhan, Patrick Pynes, Tony Joe

Canyonlands Research Bibliography

Hotspots of biodiversity have become priority areas for land conservation initiatives, oftentimes without recognition that these areas are hotspots of cultural diversity as well. Using the Colorado Plateau ecoregion as a case study, this inquiry (1) outlines the broad geographic patterns of biological diversity and ethnolinguistic diversity within this ecoregion; (2) discusses why these two kinds of diversity are often influenced by the same geographic and historic factors; and (3) suggests what can be done to integrate traditional ecological knowledge of indigenous peoples into multicultural conservation collaborations.

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Soil Leachate Responses During 10 Years Of Induced Whole-Watershed Acidification, Pamela J. Edwards, James N. Kochenderfer, Dean W. Coble, Mary Beth Adams Jan 2002

Soil Leachate Responses During 10 Years Of Induced Whole-Watershed Acidification, Pamela J. Edwards, James N. Kochenderfer, Dean W. Coble, Mary Beth Adams

Faculty Publications

Soil solution was collected from zero-tension lysimeters for 10 yr on two small central Appalachian watersheds in West Virginia, U.S.A. Ammonium sulfate fertilizer was applied to one catchment 3 times per year during each year. The other watershed was used as a reference to account for ambient baseline conditions. Ca and Mg concentrations collected below the A- and B-horizons of the treated watershed increased and then decreased over time as a result of the treatment. By contrast, Ca and Mg concentrations in the C-horizon continued to increase throughout the study period.

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Temporal Variation In Community Composition, Pigmentation, And Fv/Fm Of Desert Cyanobacterial Soil Crusts, M. A. Bowker, S. C. Reed, J. Belnap, S. L. Phillips Jan 2002

Temporal Variation In Community Composition, Pigmentation, And Fv/Fm Of Desert Cyanobacterial Soil Crusts, M. A. Bowker, S. C. Reed, J. Belnap, S. L. Phillips

Canyonlands Research Bibliography

Summers on the Colorado Plateau (USA) are typified by harsh conditions such as high temperatures, brief soil hydration periods, and high UV and visible radiation. We investigated whether community composition, physiological status, and pigmentation might vary in biological soil crusts as a result of such conditions. Representative surface cores were sampled at the ENE, WSW, and top microaspects of 20 individual soil crust pedicels at a single site in Canyonlands National Park, Utah, in spring and fall of 1999. Frequency of cyanobacterial taxa, pigment concentrations, and dark adapted quantum yield (Fv/Fm) were measured for each core. The frequency of major …

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Mammals Of The Grand Staircase-Escalante National Monument: A Literature And Museum Survey, Jerran T. Flinders, Duke S. Rogers, Jackee L. Webber-Alston, Harry A. Barber Jan 2002

Mammals Of The Grand Staircase-Escalante National Monument: A Literature And Museum Survey, Jerran T. Flinders, Duke S. Rogers, Jackee L. Webber-Alston, Harry A. Barber

United States Bureau of Land Management: Staff Publications

This is the first treatment of the mammals of the Grand Staircase-Escalante National Monument (GSENM). GSENM was established in 1996 as a 1.7-million-acre (680,000-ha) federal land reserve under the jurisdiction of the Bureau of Land Management (BLM). To successfully manage this new monument, the BLM is presently developing a management action plan. To provide information for the proper management of mammal species of the area, we have reviewed background literature for each mammal potentially found within the Monument boundaries. We propose that a core area, surrounded by a buffer matrix, be used in GSENM and surrounding public lands to preserve …

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Brown Treesnake Control: Ecomony Of Scales, Daniel S. Vice, Mikel E. Pitzler Jan 2002

Brown Treesnake Control: Ecomony Of Scales, Daniel S. Vice, Mikel E. Pitzler

Human Conflicts with Wildlife: 2002 Symposium

The accidental introduction of the brown treesnake (Boiga irregularis) to Guam led to the demise of most of the island’s native avifauna and herpetofauna. The snake is also responsible for significant economic losses through frequent power outages and consumption of poultry. Control of the snake, aimed at preventing its inadvertent dispersal from the island and protecting native wildlife and economic resources, is accomplished using specially designed snake traps, hand capture, snake detector dogs, and snake barriers. Although control tools capture large numbers of snakes, control efforts are labor intensive, costly, and ineffective in reducing snake populations across the …

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Chemical Contaminants In Juvenile Gray Whales (Eschrichtius Robustus) From A Subsistence Harvest In Arctic Feeding Grounds, Karen L. Tilbury, John E. Stein, Cheryl A. Krone, Robert L. Brownell Jr., S.A. Blokhin, Jennie L. Bolton, Don W. Ernest Jan 2002

Chemical Contaminants In Juvenile Gray Whales (Eschrichtius Robustus) From A Subsistence Harvest In Arctic Feeding Grounds, Karen L. Tilbury, John E. Stein, Cheryl A. Krone, Robert L. Brownell Jr., S.A. Blokhin, Jennie L. Bolton, Don W. Ernest

United States Department of Commerce: Staff Publications

Gray whales are coastal migratory baleen whales that are benthic feeders. Most of their feeding takes place in the northern Pacific Ocean with opportunistic feeding taking place during their migrations and residence on the breeding grounds. The concentrations of organochlorines and trace elements were determined in tissues and stomach contents of juvenile gray whales that were taken on their Arctic feeding grounds in the western Bering Sea during a Russian subsistence harvest. These concentrations were compared to previously published data for contaminants in gray whales that stranded along the west coast of the US during their northbound migration. Feeding in …

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Dynamics Of The Lake Michigan Food Web, 1970–2000, Charles P. Madenjian, Gary L. Fahnenstiel, Thomas H. Johengen, Thomas F. Nalepa, Henry A. Vanderploeg, Guy W. Fleischer, Philip J. Schneeberger, Darren M. Benjamin, Emily B. Smith, James R. Bence, Edward S. Rutherford, Dennis S. Lavis, Dale M. Robertson, David J. Jude, Mark P. Ebener Jan 2002

Dynamics Of The Lake Michigan Food Web, 1970–2000, Charles P. Madenjian, Gary L. Fahnenstiel, Thomas H. Johengen, Thomas F. Nalepa, Henry A. Vanderploeg, Guy W. Fleischer, Philip J. Schneeberger, Darren M. Benjamin, Emily B. Smith, James R. Bence, Edward S. Rutherford, Dennis S. Lavis, Dale M. Robertson, David J. Jude, Mark P. Ebener

United States Department of Commerce: Staff Publications

Herein, we document changes in the Lake Michigan food web between 1970 and 2000 and identify the factors responsible for these changes. Control of sea lamprey (Petromyzon marinus) and alewife (Alosa pseudoharengus) populations in Lake Michigan, beginning in the 1950s and 1960s, had profound effects on the food web. Recoveries of lake whitefish (Coregonus clupeaformis) and burbot (Lota lota) populations, as well as the buildup of salmonine populations, were attributable, at least in part, to sea lamprey control. Based on our analyses, predation by salmonines was primarily responsible for the reduction in …

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Dispersal And Emerging Ecological Impacts Of Ponto-Caspian Species In The Laurentian Great Lakes, Henry A. Vanderploeg, Thomas F. Nalepa, David J. Jude, Edward L. Mills, Kristen T. Holeck, James R. Liebig, Igor A. Grigorovich, Henn Ojaveer Jan 2002

Dispersal And Emerging Ecological Impacts Of Ponto-Caspian Species In The Laurentian Great Lakes, Henry A. Vanderploeg, Thomas F. Nalepa, David J. Jude, Edward L. Mills, Kristen T. Holeck, James R. Liebig, Igor A. Grigorovich, Henn Ojaveer

United States Department of Commerce: Staff Publications

We describe, explain, and “predict” dispersal and ecosystem impacts of six Ponto-Caspian endemic species that recently invaded the Great Lakes via ballast water. The zebra mussel, Dreissena polymorpha, and quagga mussel, Dreissena bugensis, continue to colonize hard and soft substrates of the Great Lakes and are changing ecosystem function through mechanisms of ecosystem engineering (increased water clarity and reef building), fouling native mussels, high particle filtration rate with selective rejection of colonial cyanobacteria in pseudofeces, alteration of nutrient ratios, and facilitation of the rapid spread of their Ponto-Caspian associates, the benthic amphipod Echinogammarus ischnus and the round goby, …

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Tws Wildlife Damage Management Working Group Newsletter: Summer 2002 – Volume 9(2) Jan 2002

Tws Wildlife Damage Management Working Group Newsletter: Summer 2002 – Volume 9(2)

TWS Wildlife Damage Management Working Group Newsletter

Forward; Wanted: Information On Management Of Coyotes In Urban/Suburban Locals; Candidates For The Working Group Officers – July 2002; Wildlife Damage Management Working Group Ballot – July 2002; Book Review - Resolving Human-Wildlife Conflicts: The Science Of Wildlife Damage Management

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Wood Thrush Movements And Habitat Use: Effects Of Forest Management For Red-Cockaded Woodpeckers, Jason Lang, Larkin A. Powell, David Krementz, Michael J. Conroy Jan 2002

Wood Thrush Movements And Habitat Use: Effects Of Forest Management For Red-Cockaded Woodpeckers, Jason Lang, Larkin A. Powell, David Krementz, Michael J. Conroy

School of Natural Resources: Faculty Publications

We monitored adult and juvenile breeding-season movements and habitat use of radio-tagged Wood Thrushes (Hylocichla mustelina) at the Piedmont National Wildlife Refuge, central Georgia, USA. We investigated the effects that management for Red-cockaded Woodpeckers (Picoides borealis), thinning and burning >30 year old loblolly pine (Pinus taeda) habitat, had on Wood Thrushes, a ground-foraging and midstory-nesting species. Adult Wood Thrush pairs regularly moved long distances between nesting attempts (range 1 to 17,388 m). The only experimental effect we found on adult movements was a decrease in weekly emigration rates (AP) from thinned and burned compartments …

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Intermittent Turbulence Associated With A Density Current Passage In The Stable Boundary Layer, Jielun Sun, Sean P. Burns, Donald H. Lenschow, Robert Banta, Rob Newsom, Richard Coulter, Stephen Fraiser, Carmen Nappo, Joan Cuxart, William Blumen, Xuhui Lee, Xin-Zhang Hu Jan 2002

Intermittent Turbulence Associated With A Density Current Passage In The Stable Boundary Layer, Jielun Sun, Sean P. Burns, Donald H. Lenschow, Robert Banta, Rob Newsom, Richard Coulter, Stephen Fraiser, Carmen Nappo, Joan Cuxart, William Blumen, Xuhui Lee, Xin-Zhang Hu

United States Department of Commerce: Staff Publications

Using the unprecedented observational capabilities deployed during the Cooperative Atmosphere-Surface Exchange Study-99 (CASES-99), we found three distinct turbulence events on the night of 18 October 1999, each of which was associated with different phenomena: a density current, solitary waves, and downward propagating waves from a low-level jet. In this study, we focus on the first event, the density current and its associated intermittent turbulence. As the cold density current propagated through the CASES-99 site, eddy motions in the upper part of the density current led to periodic overturning of the stratified flow, local thermal instability and a downward diffusion of …

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Adaptive Inference For Distinguishing Credible From Incredible Patterns In Nature, C. S. Holling, Craig R. Allen Jan 2002

Adaptive Inference For Distinguishing Credible From Incredible Patterns In Nature, C. S. Holling, Craig R. Allen

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Strong inference is a powerful and rapid tool that can be used to identify and explain patterns in molecular biology, cell biology, and physiology. It is effective where causes are single and separable and where discrimination between pairwise alternative hypotheses can be determined experimentally by a simple yes or no answer. But causes in ecological systems are multiple and overlapping and are not entirely separable. Frequently, competing hypotheses cannot be distinguished by a single unambiguous test, but only by a suite of tests of different kinds, that produce a body of evidence to support one line of argument and not …

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Biodiversity Of Fungi In Red Imported Fire Ant (Hymenoptera: Formicidae) Mounds, Jennifer A. Zettler, Thomas M. Mcinnis Jr., Craig R. Allen, Timothy P. Spira Jan 2002

Biodiversity Of Fungi In Red Imported Fire Ant (Hymenoptera: Formicidae) Mounds, Jennifer A. Zettler, Thomas M. Mcinnis Jr., Craig R. Allen, Timothy P. Spira

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

The red imported fire ant, Solenopsis invicta Buren, became established in North America more than 70 yr ago, and it currently occupies most of the southeastern United States. Fire ants change the physical and chemical components of soil, which likely infuence soil fungi in ant mounds. To determine the effects of fire ants on soil fungi, we sampled soil from fire ant mounds and the surrounding nonmound soil. In addition, we sampled soil from the nests of the native ant Aphaenogaster texana carolinensis Wheeler. We found that both fire ant mounds and native ant nests had greater fungal abundance but …

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Call Parameters And Facial Features In Bats: A Surprising Failure Of Form Following Function, Amanda Goudy-Trainor, Patricia W. Freeman Jan 2002

Call Parameters And Facial Features In Bats: A Surprising Failure Of Form Following Function, Amanda Goudy-Trainor, Patricia W. Freeman

School of Natural Resources: Faculty Publications

We attempted to correlate echolocation call parameters to a comprehensive array of ear and nose measurements from 12 families of bats. Surprisingly, we failed to find any significant relationships. We did find consistent differences between nasal and oral emitters such as: (a) nasal emitters have higher frequencies with maximum energy for their size than oral emitters, (b) nasal emitting bats tend to have longer, narrower skulls, and (c) nasal emitters have a shorter distance from the nostril to the eye (muzzle length).

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Canadian Cooperative Wildlife Health Centre Newsletter, Volume 8-2, Winter 2001/2002 Jan 2002

Canadian Cooperative Wildlife Health Centre Newsletter, Volume 8-2, Winter 2001/2002

Canadian Cooperative Wildlife Health Centre: Newsletters and Publications

Wildlife Technician - Western/Northern Regional Centre The Research Group for Arctic Parasitology (RGAP): Heading North with CCWHC Enhanced Passive Surveillance for West Nile Virus Infection in Wild Birds in Canada - 2001 Foot and Mouth Disease and Canadian Wildlife Raptor Tissue Collection Barbiturate poisoning in a bald eagle Newcastle Disease in pigeons, Prince Edward Island Tuberculosis in a Thick-billed Murre Lyme Disease in NewfoundlandType C Botulism Outbreak on the Shore of the St Lawrence Suspected cyanide poisoning in birds Type E botulism, Lake Erie Parvovirus in raccoons Canine Distemper Virus in mustelids: Canine Newcastle Disease and Avian Cholera in Cormorants …

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Historical Overview Of Tampa Bay Water Quality And Seagrass Issues And Trends, J.O. R. Johansson Jan 2002

Historical Overview Of Tampa Bay Water Quality And Seagrass Issues And Trends, J.O. R. Johansson

Reports

Historical (pre-1930s) seagrass meadows in Tampa Bay are believed to have covered 31,000 ha of the shallow bay bottom. Later, impacts to the bay from increasing population and industrial development of the Tampa Bay area have resulted in large seagrass losses. By 1982, approximately 8,800 ha of seagrass remained. Since 1982, Tampa Bay seagrass monitoring programs have recorded a reversal in the trend of seagrass loss, with the baywide seagrass cover increasing from 9,420 ha in 1988 to 10,890 ha in 1997. However, between 1997 and 1999 the trend again reversed with substantial losses recorded, specifically in the Old Tampa …

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2002 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie Jan 2002

2002 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie

Data Sets

The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the photo point locations, aerial photos, and flight maps for the year 2002.

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2002 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group Jan 2002

2002 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group

Images

The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 2002.

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The Fringing Halophytic Vegetation Of Lake Austin: A Study Of Mining Impacts And Vegetation Dynamics, Simone Vellekoop Jan 2002

The Fringing Halophytic Vegetation Of Lake Austin: A Study Of Mining Impacts And Vegetation Dynamics, Simone Vellekoop

Theses : Honours

Mining operations in arid regions of Western Australia are faced with many environmental management issues. One such issue is the disposal of mine water to the environment. Mine water is commonly discharged to nearby salt lakes under licence by the Department of Environmental Protection. Licence conditions dictate that the discharge water and the receiving environment be monitored to allow impacts on the environment to be detected. Salt lakes are associated with vegetation communities dominated by halophytic members of the Chenopodiaceae, While these plants are tolerant of salinity extremes, the germination stage of many species requires periods of lowered salinity. There …

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Stomatal Responses Of Douglas-Fir Seedlings To Elevated Carbon Dioxide And Temperature During The Third And Fourth Years Of Exposure, James D. Lewis, Melissa S. Lucash, David M. Olszyk, David T. Tingey Jan 2002

Stomatal Responses Of Douglas-Fir Seedlings To Elevated Carbon Dioxide And Temperature During The Third And Fourth Years Of Exposure, James D. Lewis, Melissa S. Lucash, David M. Olszyk, David T. Tingey

Environmental Science and Management Faculty Publications and Presentations

Two major components of climate change, increasing atmospheric [CO2] and increasing temperature, may substantially alter the effects of water availability to plants through effects on the rate of water loss from leaves. We examined the interactive effects of elevated [CO2] and temperature on seasonal patterns of stomatal conductance (gs), transpiration (E) and instantaneous transpiration efficiency (ITE) in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings. Seedlings were grown in sunlit chambers at either ambient CO2 (AC) or ambient + 180 µmol mol-1 CO2 (EC), and at ambient temperature (AT) or ambient + 3.5° …

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Reconnaissance Of Pharmaceutical Chemicals In Urban Streams Of The Tualatin River Basin, Oregon, 2002, Stewart A. Rounds, Micelis C. Doyle, Patrick M. Edwards, Edward T. Furlong Jan 2002

Reconnaissance Of Pharmaceutical Chemicals In Urban Streams Of The Tualatin River Basin, Oregon, 2002, Stewart A. Rounds, Micelis C. Doyle, Patrick M. Edwards, Edward T. Furlong

Environmental Science and Management Faculty Publications and Presentations

A reconnaissance of pharmaceutical chemicals in urban streams of the Tualatin River basin was conducted in July 2002 in an effort to better understand the occurrence and distribution of such compounds, and to determine whether they might be useful indicators of human-related stream contamination. Of the 21 pharmaceutical chemicals and metabolites tested, only 6 (acetaminophen, caffeine, carbamazepine, codeine, cotinine, and sulfamethoxazole) were detected in filtered stream samples from 10 sites. The concentrations of most of the detected compounds were relatively low (less than 0.05 microgram per liter). The most frequently detected compounds were cotinine (a nicotine metabolite, 8 of 10 …

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Understanding The Role Of Macroalgae In Shallow Estuaries, Maryland Department Of Natural Resources Jan 2002

Understanding The Role Of Macroalgae In Shallow Estuaries, Maryland Department Of Natural Resources

Reports

No abstract provided.

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Landscaping To Avoid Wildlife Conflicts Jan 2002

Landscaping To Avoid Wildlife Conflicts

Other Bird Strike and Aviation Materials

Wild animals contribute to our enjoyment of nature, and many species add aesthetic value to urban and suburban environments. Landscapes are frequently developed to be “environmentally friendly” by providing food and cover for songbirds, waterfowl, squirrels, and other wildlife. Wild animals can, however, damage property or threaten human health and safety. The presence of undesirable species or animal overpopulation often leads to many common wildlife problems associated with urban landscapes. Equipped with the right information, landscape designers can significantly reduce the potential for wildlife–human conflicts and their resulting impacts on economic interests and public safety.

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Variation In Overstory Nitrogen Uptake In A Small, High-Elevation Southern Appalachian Spruce-Fir Watershed, M. Barker, H. Van Miegroet, N. S. Nicholas, I. F. Creed Jan 2002

Variation In Overstory Nitrogen Uptake In A Small, High-Elevation Southern Appalachian Spruce-Fir Watershed, M. Barker, H. Van Miegroet, N. S. Nicholas, I. F. Creed

Watershed Sciences Faculty Publications

High-elevation red spruce (Picea rubens Sarg.) – Fraser fir (Abies fraseri (Pursh) Poir.) forests of the southern Appalachians exhibit considerable spatial heterogeneity in structure, and possibly in N uptake, because of a combination of natural disturbances and heavy fir mortality caused by infestations of the exotic balsam woolly adelgid (Adelges piceae Ratz). The objectives of this study are to determine spatial variability in tree N uptake in a small high-elevation catchment in the Great Smoky Mountains National Park, compare outcomes among calculation methods, and assess the influence of stand and landscape properties on N uptake. Tree N uptake is estimated …

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The Transformation Of Iodate To Iodide In Marine Phytoplankton Cultures, George T. F. Wong, Ajcharaporn U. Piumsomboon, William M. Dunstan Jan 2002

The Transformation Of Iodate To Iodide In Marine Phytoplankton Cultures, George T. F. Wong, Ajcharaporn U. Piumsomboon, William M. Dunstan

OES Faculty Publications

Six species of phytoplankton, representing 6 major phylogenetic groups (2 oceanic species: a cyanobacteria, Synechococcus sp., and a coccolithophorid, Emiliania huxleyi; and 4 coastal species: a prasinophyte, Tetraselmis sp., the green algae Dunaliella tertiolecta, the diatom Skeletonema costatum and a dinoflagellate Amphidinium carterae) were tested for their ability to reduce iodate to iodide in batch cultures. They all did so to varying degrees. Thus, the reduction of iodate to iodide by phytoplankton may be a general phenomenon in the marine environment. At ambient concentrations of iodate, the rates of depletion of iodate and appearance of …

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Missoula Ecopaws: Environmental Incentive Program To Combat Environmental Inaction, Jaymie Sanders, Valayna Cannon, Katy Mccumber, Hattie Ransom Jan 2002

Missoula Ecopaws: Environmental Incentive Program To Combat Environmental Inaction, Jaymie Sanders, Valayna Cannon, Katy Mccumber, Hattie Ransom

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Climate change has had a drastic impact on the planet on a biological, political, and socioeconomic level. The excessive consumption of natural resources and human-induced pollution has contributed to rising temperatures, intensified weather patterns, and an increase in natural disasters (Nations, 2019). This has led to high levels of eco-anxiety and grief in younger generations, driven by psychological factors, misinformation, and governmental resistance to meaningful change which has influenced inaction in individuals (Hickman et al, 2021). In order to address these growing concerns, we have created a rewards program for our campus community to encourage eco-positive behavior. Missoula EcoPaws is …

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Integrated Ecological Economic Modeling Of The Patuxent River Watershed, Maryland, Robert Costanza, Alexey Voinov, Roelof Boumans, Thomas Maxwell, Ferdinando Villa, Lisa Wainger, Helena Voinov Jan 2002

Integrated Ecological Economic Modeling Of The Patuxent River Watershed, Maryland, Robert Costanza, Alexey Voinov, Roelof Boumans, Thomas Maxwell, Ferdinando Villa, Lisa Wainger, Helena Voinov

Institute for Sustainable Solutions Publications and Presentations

Understanding the way regional landscapes operate, evolve, and change is a key area of research for ecosystem science. It is also essential to support the "placebased" management approach being advocated by the U.S. Environmental Protection Agency and other management agencies. We developed a spatially explicit, process-based model of the 2352 km2 Patuxent River watershed in Maryland to integrate data and knowledge over several spatial, temporal, and complexity scales, and to serve as an aid to regional management. In particular, the model addresses the effects of both the magnitude and spatial patterns of human settlements and agricultural practices on hydrology, plant …

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Cross-Scale Structure And Scale Breaks In Ecosystems And Other Complex Systems, Craig R. Allen, C. S. Holling Jan 2002

Cross-Scale Structure And Scale Breaks In Ecosystems And Other Complex Systems, Craig R. Allen, C. S. Holling

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

The five articles in this special feature extend the discovery of regular patterns of deviation from scaling laws and from continuous distributions of attributes in ecosystems and other complex systems. These patterns suggest that these systems organize over discrete ranges of scale and that organization abruptly shifts with changes in scale. If this is so, scaling laws (for example, see West 1997, 1999; Zipf 1949) serve only as the baseline from which to measure those departures, and those departures indicate “scale breaks” (transitions) between scales of structure in complex systems. Patterns in the deviations from a scaling-law baseline may provide …

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