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- Invasive species (9)
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- USDA Wildlife Services: Staff Publications (102)
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Articles 151 - 169 of 169
Full-Text Articles in Life Sciences
Type And Frequency Of Wild Pig-Domestic Livestock Contacts And Operator Concern For Disease Spread, Sophie C. Mckee, Daniel F. Mooney, Ryan S. Miller
Type And Frequency Of Wild Pig-Domestic Livestock Contacts And Operator Concern For Disease Spread, Sophie C. Mckee, Daniel F. Mooney, Ryan S. Miller
USDA Wildlife Services: Staff Publications
Wild pigs (Sus scrofa) can levy substantial costs to domestic livestock operations and global supply chains due to disease introduction. Producers can take defensive action to avert these costs, but the factors influencing these decisions are not well understood. We examined survey data to characterize the type and frequency of contacts between wild pigs and domestic livestock and investigated the determinants of farm operator concern for disease introduction using an ordered logit model. We found that operators with livestock kept in buildings were more concerned about disease than those with livestock kept in fenced areas or that roam …
The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity, Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane
The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity, Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane
OES Faculty Publications
It is widely assumed that phytoplankton abundance and productivity decline during temperate winters because of low irradiance and temperatures. However, winter phytoplankton blooms commonly occur in temperate estuaries, but they are often undocumented because of reduced water quality monitoring in winter. The small body of in situ work that has been done on winter blooms suggests they can be of enormous consequence to ecosystems. However, because monitoring is often reduced or stopped altogether during winter, it is unclear how widespread these blooms are or how long they can last. We analyzed an over 30-year record of monthly phytoplankton monitoring samples …
Ecohydrology Of Coastal Aquifers In Humid Environments And Implications Of A Drying Climate, Madeleine Dyring, Harald Hofmann, David Stanton, Patrick Moss, Ray Froend
Ecohydrology Of Coastal Aquifers In Humid Environments And Implications Of A Drying Climate, Madeleine Dyring, Harald Hofmann, David Stanton, Patrick Moss, Ray Froend
Research outputs 2022 to 2026
Coastal groundwater-dependent ecosystems (GDEs), such as wetlands, estuaries and mangrove forests, are globally important habitats that promote biodiversity, provide climate regulation and serve as refugia for plant and animal communities. However, global warming, coastal development and over-abstraction threaten the availability and quality of groundwater in coastal aquifers and, by extension, the ecohydrological function of dependent ecosystems. Because ecohydrological knowledge of coastal groundwater is disparate across disciplines and habitat types, we begin by summarising the physiochemical, biological and hydrological processes supported by groundwater across coastal watersheds. Groundwater makes a significant but poorly recognised contribution to the function and resilience of coastal …
Local-Scale Impacts Of Water Hyacinth On Water Quality In A Hypereutrophic Lake, J. R. Corman, A. Z. Roegner, Z. Ogari, T. R. Miller, C. M. Aura
Local-Scale Impacts Of Water Hyacinth On Water Quality In A Hypereutrophic Lake, J. R. Corman, A. Z. Roegner, Z. Ogari, T. R. Miller, C. M. Aura
School of Natural Resources: Documents and Reviews
No abstract provided.
Strong, Recent Selective Sweeps Reshape Genetic Diversity In Freshwater Bivalve Megalonaias Nervosa, Rebekah L. Rogers, Stephanie L. Grizzard, Jeffrey T. Garner
Strong, Recent Selective Sweeps Reshape Genetic Diversity In Freshwater Bivalve Megalonaias Nervosa, Rebekah L. Rogers, Stephanie L. Grizzard, Jeffrey T. Garner
Biological Sciences Faculty Publications
Freshwater Unionid bivalves have recently faced ecological upheaval through pollution, barriers to dispersal, harvesting, and changes in fish–host prevalence. Currently, over 70% of species in North America are threatened, endangered or extinct. To characterize the genetic response to recent selective pressures, we collected population genetic data for one successful bivalve species, Megalonaias nervosa. We identify megabase-sized regions that are nearly monomorphic across the population, signals of strong, recent selection reshaping diversity across 73 Mb total. These signatures of selection are greater than is commonly seen in population genetic models. We observe 102 duplicate genes with high dN/d …
An Integrative Salt Marsh Conceptual Framework For Global Comparisons, Erik S. Yando, Scott F. Jones, W. Ryan James, Denise D. Colombano, Diana I. Montemayor, Stefanie Nolte, Jacqueline L. Raw, Shelby L. Ziegler, Luzhen Chen, Daniele Daffonchio, Marco Fusi, Kerrylee Rogers, Liudmila Sergienko
An Integrative Salt Marsh Conceptual Framework For Global Comparisons, Erik S. Yando, Scott F. Jones, W. Ryan James, Denise D. Colombano, Diana I. Montemayor, Stefanie Nolte, Jacqueline L. Raw, Shelby L. Ziegler, Luzhen Chen, Daniele Daffonchio, Marco Fusi, Kerrylee Rogers, Liudmila Sergienko
Biological Sciences Faculty Publications
Salt marshes occur globally across climatic and coastal settings, providing key linkages between terrestrial and marine ecosystems. However, salt marsh science lacks a unifying conceptual framework; consequently, historically well-studied locations have been used as normative benchmarks. To allow for more effective comparisons across the diversity of salt marshes, we developed an integrative salt marsh conceptual framework. We review ecosystem-relevant drivers from global to local spatial scales, integrate these multi-scale settings into a framework, and provide guidance on applying the framework using specific variables on 11 global examples. Overall, this framework allows for appropriate comparison of study sites by accounting for …
Moving Beyond The Panarchy Heuristic, David G. Angeler, Craig R. Allen
Moving Beyond The Panarchy Heuristic, David G. Angeler, Craig R. Allen
School of Natural Resources: Documents and Reviews
No abstract provided.
Storms And Ph Of Dam Releases Affects Downstream Phosphorus Cycling In An Arid Regulated River, B. R. Deemer, R. H. Reibold, A. Fatta, J. R. Corman, C. B. Yackulic, S. C. Reed
Storms And Ph Of Dam Releases Affects Downstream Phosphorus Cycling In An Arid Regulated River, B. R. Deemer, R. H. Reibold, A. Fatta, J. R. Corman, C. B. Yackulic, S. C. Reed
School of Natural Resources: Documents and Reviews
No abstract provided.
Spatiotemporal Analysis Of Extreme Precipitation In The Southern Great Plains Hydroclimate Region, P. Flanagan, R. Mahmood
Spatiotemporal Analysis Of Extreme Precipitation In The Southern Great Plains Hydroclimate Region, P. Flanagan, R. Mahmood
School of Natural Resources: Documents and Reviews
No abstract provided.
Resilience Theory And Coerced Resilience In Agriculture, S. M. Sundstrom, D. G. Angeler, C. R. Allen
Resilience Theory And Coerced Resilience In Agriculture, S. M. Sundstrom, D. G. Angeler, C. R. Allen
School of Natural Resources: Documents and Reviews
No abstract provided.
Evolution Of The Southwest Drought Learning Network: Collective Response To Exceptional Drought, E. Elias, B. Fuchs, J. Lisonbee, T. Bernadt, V. Martinez, T. Haigh
Evolution Of The Southwest Drought Learning Network: Collective Response To Exceptional Drought, E. Elias, B. Fuchs, J. Lisonbee, T. Bernadt, V. Martinez, T. Haigh
School of Natural Resources: Documents and Reviews
No abstract provided.
Modified Tracer Gas Injection For Measuring Stream Gas Exchange Velocity In The Presence Of Significant Temperature Variation, C. R. Jensen, D. P. Genereux, T. E. Gilmore, D. K. Solomon
Modified Tracer Gas Injection For Measuring Stream Gas Exchange Velocity In The Presence Of Significant Temperature Variation, C. R. Jensen, D. P. Genereux, T. E. Gilmore, D. K. Solomon
School of Natural Resources: Documents and Reviews
No abstract provided.
Characterization Of Particulate Size Distributions And Water-Soluble Ions Measured At A Broiler Farm, P. J. Silva, T. Cress, R. Drover, C. Michael, G. Docekal, P. Larkin, A. Godoy, D. A. Cavero, C. Sin, J. Waites, Rezaul Mamood, M. Cohron, K. L. Purvis-Roberts
Characterization Of Particulate Size Distributions And Water-Soluble Ions Measured At A Broiler Farm, P. J. Silva, T. Cress, R. Drover, C. Michael, G. Docekal, P. Larkin, A. Godoy, D. A. Cavero, C. Sin, J. Waites, Rezaul Mamood, M. Cohron, K. L. Purvis-Roberts
School of Natural Resources: Documents and Reviews
No abstract provided.
Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams
Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams
OES Faculty Publications
Constraining the role of dust deposition in regulating the concentration of the essential micronutrient iron in surface ocean waters requires knowledge of the flux of seawater-soluble iron in aerosols and the replacement time of dissolved iron (DFe) in the euphotic zone. Here we estimate these quantities using seasonally resolved DFe data from the Bermuda Atlantic Time-series Study region and weekly-scale measurements of iron in aerosols and rain from Bermuda during 2019. In response to seasonal changes in vertical mixing, primary production and dust deposition, surface DFe concentrations vary from ∼0.2 nM in early spring to >1 nM in late summer, …
A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives, Angela M. Kuhn, Matthew Mazloff, Stephanie Dutkiewicz, Oliver Jahn, Sophie Clayton, Tatiana Rynearson, Andrew D. Barton
A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives, Angela M. Kuhn, Matthew Mazloff, Stephanie Dutkiewicz, Oliver Jahn, Sophie Clayton, Tatiana Rynearson, Andrew D. Barton
OES Faculty Publications
The California Current System is a diatom‐dominated region characterized by seasonal coastal upwelling and additional elevated mesoscale activity. Cyclonic mesoscale eddies in the region trap productive coastal waters with their planktonic communities and transport them offshore with limited interaction with surrounding waters, effectively acting as natural mesocosms, where phytoplankton populations undergo ecological succession as eddies age. This study examines diatom community composition within two mesoscale cyclonic eddies that formed in the same region of the California Current System 2 months apart and in the California Current waters surrounding them. The diatom communities were analyzed in the context of shifting environmental …
Raccoons (Procyon Lotor) Show Higher Trypanosoma Cruzi Detection Rates Than Virginia Opossums (Didelphis Virginiana) In South Carolina, Usa, David A. Bernasconi, Madison L. Miller, Jacob E. Hill, Pooja Gupta, Richard Chipman, Amy Gilbert, Olin E. Rhodes Jr., Guha Dharmarajan
Raccoons (Procyon Lotor) Show Higher Trypanosoma Cruzi Detection Rates Than Virginia Opossums (Didelphis Virginiana) In South Carolina, Usa, David A. Bernasconi, Madison L. Miller, Jacob E. Hill, Pooja Gupta, Richard Chipman, Amy Gilbert, Olin E. Rhodes Jr., Guha Dharmarajan
USDA Wildlife Services: Staff Publications
Chagas disease, a significant public health concern in the Americas, is caused by a protozoan parasite, Trypanosoma cruzi. The life cycle of T. cruzi involves kissing bugs (Triatoma spp.) functioning as vectors and mammalian species serving as hosts. Raccoons (Procyon lotor) and opossums (Didelphis virginiana) have been identified as important reservoir species in the life cycle of T. cruzi, but prevalence in both species in the southeastern United States is currently understudied. We quantified T. cruzi prevalence in these two key reservoir species across our study area in South Carolina, USA, and …
Forest Hydrology In Chile: Past, Present, And Future, Francisco Balocchi, Mauricio Galleguillos, Diego Rivera, Alejandra Stehr, Jose Luis Arumi, Roberto Pizarro, Pablo Garcia-Chevesich, Andrés Iroumé, Juan J. Armesto, Pedro Hervé-Fernández, Carlos Oyarzún, Pilar Barría, Christian Little, Gabriel Mancilla, Santiago Yépez, Rolando Rodriguez, Don A. White, Richard P. Silberstein, Daniel G. Neary, Pablo Ramírez De Arellano
Forest Hydrology In Chile: Past, Present, And Future, Francisco Balocchi, Mauricio Galleguillos, Diego Rivera, Alejandra Stehr, Jose Luis Arumi, Roberto Pizarro, Pablo Garcia-Chevesich, Andrés Iroumé, Juan J. Armesto, Pedro Hervé-Fernández, Carlos Oyarzún, Pilar Barría, Christian Little, Gabriel Mancilla, Santiago Yépez, Rolando Rodriguez, Don A. White, Richard P. Silberstein, Daniel G. Neary, Pablo Ramírez De Arellano
Research outputs 2022 to 2026
This paper reviews the current knowledge of hydrological processes in Chilean temperate forests which extend along western South America from latitude 29° S to 56 ° S. This geographic region includes a diverse range of natural and planted forests and a broad sweep of vegetation, edaphic, topographic, geologic, and climatic settings which create a unique natural laboratory. Many local communities, endangered freshwater ecosystems, and downstream economic activities in Chile rely on water flows from forested catchments. This review aims to (i) provide a comprehensive overview of Chilean forest hydrology, to (ii) review prior research in forest hydrology in Chile, and …
Ranking The Risk Of Co2 Emissions From Seagrass Soil Carbon Stocks Under Global Change Threats, Martin Dahl, Kathryn Mcmahon, Paul S. Lavery, Serena H. Hamilton, Catherine E. Lovelock, Oscar Serrano
Ranking The Risk Of Co2 Emissions From Seagrass Soil Carbon Stocks Under Global Change Threats, Martin Dahl, Kathryn Mcmahon, Paul S. Lavery, Serena H. Hamilton, Catherine E. Lovelock, Oscar Serrano
Research outputs 2022 to 2026
Seagrass meadows are natural carbon storage hotspots at risk from global change threats, and their loss can result in the remineralization of soil carbon stocks and CO2 emissions fueling climate change. Here we used expert elicitation and empirical evidence to assess the risk of CO2 emissions from seagrass soils caused by multiple human-induced, biological and climate change threats. Judgments from 41 experts were synthesized into a seagrass CO2 emission risk score based on vulnerability factors (i.e., spatial scale, frequency, magnitude, resistance and recovery) to seagrass soil organic carbon stocks. Experts perceived that climate change threats (e.g., gradual ocean warming and …
Artistic Engagement With Monadnock: A Hermeneutic Phenomenological Study, Jonathan W. Coffin
Artistic Engagement With Monadnock: A Hermeneutic Phenomenological Study, Jonathan W. Coffin
Antioch University Dissertations & Theses
This hermeneutic phenomenological study discloses the lived experience of creating art in association with New Hampshire’s Mount Monadnock. This study reveals the potential for artistic invention in association with place gradually to undermine an established sense of separation from environment and to prompt conscious awareness of continuity with environment. A series of interviews with four artists who create art of or in the presence of Monadnock revealed in the lived experience of creating Monadnock art a process that consists of five phases: first encounter, abstract appreciation, existential understanding, sustained attention, and continuity. A hermeneutic circular method of interpretation based upon …