Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Institution
Keyword
Publication Year
Publication
Publication Type

Articles 271 - 300 of 1272

Full-Text Articles in Environmental Policy

Mortality In Aransas-Wood Buffalo Whooping Cranes: Timing, Location, And Causes, Aaron T. Pearse, David A. Brandt, Barry K. Hartup, Mark T. Bidwell Jan 2019

Mortality In Aransas-Wood Buffalo Whooping Cranes: Timing, Location, And Causes, Aaron T. Pearse, David A. Brandt, Barry K. Hartup, Mark T. Bidwell

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The Aransas-Wood Buffalo Population (AWBP) of Whooping Cranes (Grus americana) has experienced a population growth rate of approximately 4% for multiple decades (Butler et al., 2014a; Miller et al., 1974). Population growth for long-lived species of birds is generally highly sensitive to variation in adult mortality rates (Sæther and Bakke, 2000). A population model for endangered Red-crowned Cranes (Grus japonensis) in Japan conforms to this pattern, where growth rate is most sensitive to adult mortality (Masatomi et al., 2007). Earlier analyses observed that the AWBP growth rate increased in the mid-1950s and that this increase was likely caused by reduced …


Galliformes Specialist Group Annual Report 2019, John P. Carroll, Simon D. Dowell Jan 2019

Galliformes Specialist Group Annual Report 2019, John P. Carroll, Simon D. Dowell

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Annual report of the IUCN SSC Galliformes Specialist Group, 2019.


7th International Symposium On Galliformes (September 22–24, 2019: Quang Binh, Vietnam): Abstracts, World Pheasant Association, Việt Nature Conservation Centre Jan 2019

7th International Symposium On Galliformes (September 22–24, 2019: Quang Binh, Vietnam): Abstracts, World Pheasant Association, Việt Nature Conservation Centre

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Abstracts

How much recent research help with plans to reintroduce Vietnam pheasant Lophura edwardsi to the world? Nigel Collar

Status and range decline of Germain’s peacock pheasant, Vy Nguyen Tran, Dusit Ngoprasert, Stephen Browne, and Tommaso Savini

Landscape-scale camera-trapping surveys fill the information gap about the distribution of galliforms in the Annamites, An Nguyen, Andrew Tilker, Jesse F. Abrams, Thanh V. Nguyen, Nguyen Quang Hoa Anh, Benjamin Rawson, Francois Guegan, Camille N. Z. Coudrat, Cao Tien Trung, Minh Le, Daniel Wilcox, and Andreas Wilting

Increasing the breeding success of two vulnerable peacock-pheasant species through antiparasitic interventions and hand-rearing Grace Tang …


Evaluation Of Restoration Techniques And Management Practices Of Tule Pertaining To Eco-Cultural Use, Irene A. Vasquez Jan 2019

Evaluation Of Restoration Techniques And Management Practices Of Tule Pertaining To Eco-Cultural Use, Irene A. Vasquez

Cal Poly Humboldt theses and projects

Tule (Schoenoplectus sp.) is a native plant commonly used by California tribes and Indigenous people throughout the world (Macía & Balslev 2000). Ecological, social and regulatory threats to its use in contemporary Indigenous culture highlight major issues concerning natural resource management. My ancestral homeland, what is now Yosemite National Park, stands as a figurehead in the intersection of land management and Indigenous peoples. An important element of Traditional Ecological Management (TEM) for quality basketry materials is prescribed fire, an element western science is increasingly acknowledging for creating a more biodiverse and heterogeneous landscape. This research was conducted in Mariposa and …


Microplastics In Full View: Birds As Bioindicators Of Malta's Coastal Ecosystem Health, Dalton Brauer Dec 2018

Microplastics In Full View: Birds As Bioindicators Of Malta's Coastal Ecosystem Health, Dalton Brauer

Masters Theses, 2010-2019

Plastic pollution has recently become a widely studied topic, yet research on microplastics has remained lacking for specific geographic regions. Microplastics are small plastics resulting from degradation or the dumping of raw material and can lead to deleterious impacts on the coastal marine environment and its organisms. To assess Malta’s coastal environmental health, water birds (inshore, offshore and pelagic species) were used as bioindicators by assessing the presence and abundance of plastic within their stomach contents. The project hoped to fill some of the current gaps in knowledge on microplastics within Malta by creating a working baseline, as well as …


Implications Of Spatially Variable Costs And Habitat Conversion Risk In Landscape-Scale Conservation Planning, Max Post Van Der Burg, Neil Chartier, Ryan Drum Dec 2018

Implications Of Spatially Variable Costs And Habitat Conversion Risk In Landscape-Scale Conservation Planning, Max Post Van Der Burg, Neil Chartier, Ryan Drum

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

‘‘Strategic habitat conservation’’ refers to a process used by the U.S. Fish and Wildlife Service to develop cost-efficient strategies for conserving wildlife populations and their habitats. Strategic habitat conservation focuses on resolving uncertainties surrounding habitat conservation to meet specific wildlife population objectives (i.e., targets) and developing tools to guide where conservation actions should be focused on the landscape. Although there are examples of using optimization models to highlight where conservation should be delivered, such methods often do not explicitly account for spatial variation in the costs of conservation actions. Furthermore, many planning approaches assume that habitat protection is a preferred …


Prairie Reconstruction Unpredictability And Complexity: What Is The Rate Of Reconstruction Failures?, Jack E. Norland, Cami Dixon, Diane Larson, Kristine Askerooth, Benjamin A. Geaumont Dec 2018

Prairie Reconstruction Unpredictability And Complexity: What Is The Rate Of Reconstruction Failures?, Jack E. Norland, Cami Dixon, Diane Larson, Kristine Askerooth, Benjamin A. Geaumont

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The outcomes of prairie reconstructions are subject to both unpredictability and complexity. Prairie, tallgrass, and mixed grass reconstruction is defined as the planting of a native herbaceous seed mixture composed of multiple prairie species (10 or more) in an area where the land has been heavily cultivated or anthropogenically disturbed. Because of the unpredictability and complexity inherent in reconstructions, some outcomes end up being failures dominated by exotic species. We propose that these failures follow a fat-tailed distribution as found in other complex systems. Fat-tailed distributions follow the Pareto principle, where 80% of the time reconstructions work as expected but …


Trash Talk: The Effects Of Plastic Pollution On Seabirds In Narragansett Bay, Erin A. O'Neill Dec 2018

Trash Talk: The Effects Of Plastic Pollution On Seabirds In Narragansett Bay, Erin A. O'Neill

Pell Scholars and Senior Theses

Plastic pollution in the ocean is a global concern with more than 8 million tons of plastic dumped into our oceans every year. This policy paper assesses plastic pollution in Narragansett Bay and the negative implications it holds on local seabird populations. Also, essential background information on plastic production and throwaway culture is provided. Moreover, the biological significance of seabirds is described, highlighting the vital role such populations play in local ecosystems such as Narragansett Bay. This paper contributes research to the global issue of plastic pollution by observing declining native wildlife life populations, such as seabirds, on a local …


Identifying And Assessing Conflicts Between Future Development And Current Migratory Bird Habitat Around Farmington Bay, Utah, Aubin A. Douglas Dec 2018

Identifying And Assessing Conflicts Between Future Development And Current Migratory Bird Habitat Around Farmington Bay, Utah, Aubin A. Douglas

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Every year, the Great Salt Lake (GSL) and its associated wetlands provide critical habitat for over 250 migratory bird species from both the Pacific and Central Flyways. The GSL borders the Wasatch Front, which is the fastest growing and most populous region in Utah. To support the ever-increasing working population, the government of Utah aspires to increase the robust economic growth of the region through economic incentives and development of infrastructure. As this area continues to develop, greater pressure will be placed on the surrounding natural resources, including the GSL, its wetlands, and the open space and agricultural land that …


13 Terrestrial Wetlands, Randall Kolka, Carl T Trettin Nov 2018

13 Terrestrial Wetlands, Randall Kolka, Carl T Trettin

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The objective of this chapter is to characterize the distribution of carbon stocks and fluxes in terrestrial wetlands within North America. The approach was to synthesize available literature from field measurements with analyses of resource inventory data to estimate wetland area, carbon stocks, and net ecosystem exchange (NEE) of carbon and methane (CH4) fluxes of terrestrial wetlands (see Appendices 13A, p. 547, and 13B, p. 557, for details1). Then, the findings employed from large-scale simulation studies provided additional context, with consideration given to the effects of disturbance regimes, restoration and creation of terrestrial wetlands, and the application of modeling tools …


Landscape Genetics Reveal Broad And Fine‐Scale Population Structure Due To Landscape Features And Climate History In The Northern Leopard Frog (Rana Pipiens) In North Dakota, Justin M. Waraniak, Justin D. L. Fisher, Kevin Purcell, David M. Mushet, Craig A. Stockwell Oct 2018

Landscape Genetics Reveal Broad And Fine‐Scale Population Structure Due To Landscape Features And Climate History In The Northern Leopard Frog (Rana Pipiens) In North Dakota, Justin M. Waraniak, Justin D. L. Fisher, Kevin Purcell, David M. Mushet, Craig A. Stockwell

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Prehistoric climate and landscape features play large roles structuring wildlife populations. The amphibians of the northern Great Plains of North America present an opportunity to investigate how these factors affect colonization, migration, and current population genetic structure. This study used 11 microsatellite loci to genotype 1,230 northern leopard frogs (Rana pipiens) from 41 wetlands (30 samples/wetland) across North Dakota. Genetic structure of the sampled frogs was evaluated using Bayesian and multivariate clustering methods. All analyses produced concordant results, identifying a major east–west split between two R. pipiens population clusters separated by the Missouri River. Substructuring within the two major identified …


Landscape Genetics Reveal Broad And Fine‐Scale Population Structure Due To Landscape Features And Climate History In The Northern Leopard Frog (Rana Pipiens) In North Dakota, Justin M. Waraniak, Justin D.L. Fisher, Kevin Purcell, David M. Mushet, Craig A. Stockwell Oct 2018

Landscape Genetics Reveal Broad And Fine‐Scale Population Structure Due To Landscape Features And Climate History In The Northern Leopard Frog (Rana Pipiens) In North Dakota, Justin M. Waraniak, Justin D.L. Fisher, Kevin Purcell, David M. Mushet, Craig A. Stockwell

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Prehistoric climate and landscape features play large roles structuring wildlife populations. The amphibians of the northern Great Plains of North America present an opportunity to investigate how these factors affect colonization, migration, and current population genetic structure. This study used 11 microsatellite loci to genotype 1,230 northern leopard frogs (Rana pipiens) from 41 wetlands (30 samples/wetland) across North Dakota. Genetic structure of the sampled frogs was evaluated using Bayesian and multivariate clustering methods. All analyses produced concordant results, identifying a major east–west split between two R. pipiens population clusters separated by the Missouri River. Substructuring within the two major identified …


Multi-Element Fingerprinting Of Waters To Evaluate Connectivity Among Depressional Wetlands, Yuxiang Yuan, Xiaoyan Zhu, David M. Mushet, Marinus L. Otte Oct 2018

Multi-Element Fingerprinting Of Waters To Evaluate Connectivity Among Depressional Wetlands, Yuxiang Yuan, Xiaoyan Zhu, David M. Mushet, Marinus L. Otte

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Establishing the connectivity among depressional wetlands is important for their proper management, conservation and restoration. In this study, the concentrations of 38 elements in surface water and porewater of depressional wetlands were investigated to determine chemical and hydrological connectivity of three hydrological types: recharge, flow-through, and discharge, in the Prairie Pothole Region of North America. Most element concentrations of porewater varied significantly by wetland hydrologic type (p < 0.05), and increased along a recharge to discharge hydrologic gradient. Significant spatial variation of element concentrations in surface water was observed in discharge wetlands. Generally, higher element concentrations occurred in natural wetlands compared to wetlands with known disturbances (previous drainage and grazing). Electrical conductivity explained 42.3% and 30.5% of the variation of all element concentrations in porewater and surface water. Non-metric multidimensional scaling analysis showed that the similarity decreased from recharge to flowthrough to discharge wetland in each sampling site. Cluster analysis confirmed that element compositions in porewater of interconnected wetlands were more similar to each other than to those of wetlands located farther away. Porewater and surface water in a restored wetland showed similar multi-element characteristics to natural wetlands. In contrast, depressional wetlands connected by seeps along a deactivated drain-tile path and a grazed wetland showed distinctly different multi-element characteristics compared to other wetlands sampled. Our findings confirm that the multi-element fingerprinting method can be useful for assessing hydro-chemical connectivity across the landscape, and indicate that element concentrations are not only affected by land use, but also by hydrological characteristics.


Guarding Central Government Control Over Forest: Forest Governance In The Post Decentralization Indonesia, Ali Muhyidin Sep 2018

Guarding Central Government Control Over Forest: Forest Governance In The Post Decentralization Indonesia, Ali Muhyidin

Jurnal Politik

This article examines whether reform forest governance in Indonesia started in the 1990s, which was partially aimed to promote equity, participation and sustainable forest management, has delivered its promised consequences. In the New Order era, the central government had sole authority in managing forests and granting exploitation rights. This authority has been partially transferred to local governments during a decentralization process to achieve greater efficiency and equity. However, the Indonesian case highlights that such institutional change has not yet produced the expected outcomes. The case indicates a contestation between the local and central government along with institutional resistance, which have …


Draft Management Plan For The Southern Demersal Gillnet And Demersal Longline Managed Fishery, Department Of Fisheries Sep 2018

Draft Management Plan For The Southern Demersal Gillnet And Demersal Longline Managed Fishery, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Ecosystem-Based Fisheries Management (Ebfm) Risk Assessment Of The Marine Aquarium Fish Managed Fishery 2014, Department Of Fisheries Sep 2018

Ecosystem-Based Fisheries Management (Ebfm) Risk Assessment Of The Marine Aquarium Fish Managed Fishery 2014, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Marine Aquarium Fish Resource Of Western Australia Harvest Strategy : 2018 – 2022 : Version 1.0, Department Of Fisheries Sep 2018

Marine Aquarium Fish Resource Of Western Australia Harvest Strategy : 2018 – 2022 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


The Usefulness Of Gps Telemetry To Study Wolf Circadian And Social Activity, Samuel B. Merrill, L. David Mech Jul 2018

The Usefulness Of Gps Telemetry To Study Wolf Circadian And Social Activity, Samuel B. Merrill, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

This study describes circadian and social movement patterns of 9 wolves and illustrates capabilities and limitations of Global Positioning System (GPS) telemetry for analysis of animal activity patterns. Wolves were studied at the Camp Ripley National Guard Training Site in Little Falls, Minnesota, and were captured via helicopter net-gunning. All study wolves showed nocturnal movement patterns regardless of time of year. One wolf's movement pattern switched to diurnal when he conducted an extraterritorial foray from his natal territory. All data sets with GPS intervals <1 hour (n=4) showed crepuscular movement peaks. We identified patterns of den visitation and attendance, estimated minimum distances traveled and minimum rates of movement, and observed that GPS location intervals may affect perceived rates of wolf travel. Global Positioning System telemetry was useful in determining when pack members were traveling together or apart and how long a breeding female wolf spent near her pups (e.g., 0-month-old pups were left unattended by their mother for as long as 17 days).


Wpa News 106 (2018), World Pheasant Association Jul 2018

Wpa News 106 (2018), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Summer 2018), number 106

Published by the World Pheasant Association


Pearl Oyster (Pinctada Maxima) Resource Allocation Report : Prepared By The Integrated Fisheries Allocation Advisory Committee, Department Of Fisheries Jun 2018

Pearl Oyster (Pinctada Maxima) Resource Allocation Report : Prepared By The Integrated Fisheries Allocation Advisory Committee, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Guide To Usda Agroforestry Research Funding Opportunities Jun 2018

Guide To Usda Agroforestry Research Funding Opportunities

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

This guide is intended for researchers and academics pursuing funding opportunities for research in agroforestry - the intentonal integration of trees and agriculture. The guide provides an overview of external agroforestry research funding opportunities offered by the United States Department of Agriculture (USDA) agencies.

This publication was created for serveral reasons. Agroforestry is not always clearly identified in announcements about research funding opportunities. In addition, research on agroforestry can require a longer time horizon than research on annual systems, so awareness of multiple funding sources or multi-year funding opportunities can be useful. Last, though USDA offers grants that can support …


What’S At Steak? The Political Discourse Of Emissions Intensity And Implications Of Animal Agriculture, Kalyn Simon May 2018

What’S At Steak? The Political Discourse Of Emissions Intensity And Implications Of Animal Agriculture, Kalyn Simon

Master's Theses

This thesis analyzes the international discourse of greenhouse gas emissions in relation to livestock production. Specific government ministries, research institutes, and multilateral organizations are framing a new strategy to mitigate emissions by using emissions intensity metrics. Emissions intensity is a ratio comparing emissions produced per unit of animal product as oppose to measuring absolute emissions. This research is acknowledged as a win-win scenario which allows for a reduction of greenhouse gas emissions while continuing production more efficiently. This thesis outlines the emergence of this metric in international discourse and the implications this shift has on the livestock sector globally. Ultimately, …


Science, Advocacy, Policy, Planning: Tools For Advancing Transportation Equity, Garrett S. Mcallister May 2018

Science, Advocacy, Policy, Planning: Tools For Advancing Transportation Equity, Garrett S. Mcallister

Graduate Student Portfolios, Professional Papers, and Capstone Projects

The theme of this portfolio is how different tools and approaches can be used for advancing transportation equity. Broadly defined, transportation equity is about fairness in transportation. There are a number of ways this fairness can be assessed. The most common way to assess transportation equity is by looking at the fairness of outcomes, distributed geographically, socially, or even by mode of transportation. Equity can also be defined by the fairness of processes. The first half of the portfolio illustrates some of the problems with the current transportation system and how it is unhealthy (Piece 1) and unjust (Piece 2). …


Draft Management Plan For The Kimberley Crab Managed Fishery, Department Of Fisheries May 2018

Draft Management Plan For The Kimberley Crab Managed Fishery, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Draft Management Plan For The Pilbara Crab Managed Fishery, Department Of Fisheries May 2018

Draft Management Plan For The Pilbara Crab Managed Fishery, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Winter Bat Activity In A Landscape Without Traditional Hibernacula, Amy M. Hammesfahr, Rene E. Ohms May 2018

Winter Bat Activity In A Landscape Without Traditional Hibernacula, Amy M. Hammesfahr, Rene E. Ohms

United States National Park Service: Publications

Abstract

Prior to 2014, bat research at Devils Tower National Monument (DETO) focused on bats present during the summer months. Biologists at DETO assumed local bats were strictly summer residents due to the presumed lack of typical habitat features associated with bat hibernation, such as caves and mines. This lack of traditional hibernacula features at DETO discouraged staff and research cooperators from studying winter bat populations. Despite the earlier assumption that bats were unlikely to hibernate on the monument, DETO documented significant winter bat activity through passive winter acoustic monitoring. This study is the first study at DETO that documents …


Plant Community Composition And Structure Monitoring At Agate Fossil Beds National Monument, 2017 Data Summary Report, Stephanie L. Rockwood May 2018

Plant Community Composition And Structure Monitoring At Agate Fossil Beds National Monument, 2017 Data Summary Report, Stephanie L. Rockwood

United States National Park Service: Publications

Abstract

This report presents the results of vegetation monitoring efforts in 2017 at Agate Fossil Beds National Monument (AGFO) by the Northern Great Plains Inventory and Monitoring Network (NGPN) and the Northern Great Plains Fire Effects Program (NGPFire). This was the seventh year of field work conducted by NGPN at AGFO.

In 2017, crew members from NGPN visited six long-term plant community monitoring (PCM) plots and NGPFire visited eight additional PCM and fire plant community monitoring (FPCM) plots to collect data on the plant communities at AGFO. This collaborative effort is part of a long-term monitoring program established to better …


Octopus Resource Of Western Australia Harvest Strategy : 2018 – 2022 : Version 1.0, Department Of Fisheries Apr 2018

Octopus Resource Of Western Australia Harvest Strategy : 2018 – 2022 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.


Wpa News 105 (2018), World Pheasant Association Apr 2018

Wpa News 105 (2018), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Spring 2018), number 105

Published by the World Pheasant Association


Bird Population Changes Following The Establishment Of A Diverse Stand Of Woody Plants In A Former Crop Field In North Dakota, 1975– 2015, Lawrence D. Igl, Harold A. Kantrud, Wesley Newton Apr 2018

Bird Population Changes Following The Establishment Of A Diverse Stand Of Woody Plants In A Former Crop Field In North Dakota, 1975– 2015, Lawrence D. Igl, Harold A. Kantrud, Wesley Newton

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Changes in the coverage of trees and shrubs on the North Dakota landscape since Euro- American settlement have likely had a pronounced impact on bird species that favor woody vegetation. Long- term data sets on breeding bird populations in wooded habitats in North Dakota or in the Great Plains are scarce. In 1975 a wildlife habitat plot was established in a 10.5 ha cropland field with a long history of small- grain production. Th e objective of this article is to evaluate the successional changes in bird populations as the habitat at this site became more biologically and structurally complex …