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6,143 full-text articles. Page 156 of 202.

Invited Introduction To Jerec, Noelwah Netusil 2015 Reed College

Invited Introduction To Jerec, Noelwah Netusil

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Welcome By The Editor, Sahan T. M. Dissanayake 2015 Colby College

Welcome By The Editor, Sahan T. M. Dissanayake

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Protecting Ecosystems, Culture, And Human Rights In Chile Through Indigenous And Community-Conserved Territories And Areas, William G. Crowley 2015 SIT Graduate Institute

Protecting Ecosystems, Culture, And Human Rights In Chile Through Indigenous And Community-Conserved Territories And Areas, William G. Crowley

Capstone Collection

In environmental conservation circles around the world, the contributions of indigenous peoples and local communities to the sustainable maintenance of ecosystems and natural resources are being given increased attention. Whether for cultural, spiritual, economic, or other purposes, the use of traditional and local knowledge of habitat and resource management is slowly making its way into the modern environmental movement, and is being incorporated into the dominant conservation paradigms. These managed areas, known as Indigenous and Community-Conserved Territories and Areas, or ICCAs, are defined by the International Union for Conservation of Nature as “natural and/or modified ecosystems containing significant biodiversity …


Sediment Loss Of Santa Rosa Island Slopes: An Erosional Study, Michael Perez 2015 CSU Long Beach

Sediment Loss Of Santa Rosa Island Slopes: An Erosional Study, Michael Perez

STAR Program Research Presentations

Ranching began on Santa Rosa Island in the 1840’s, consequently introducing nonnative megafauna that put novel selective grazing pressures on endemic plant species. Their movement patterns also altered sediment integrity as the land was denuded of any stabilizing vegetation. Dense groves of island oak (Q. tomentella) are known to aid in sediment deposition and retention. The groves also function to collect water during periods of intense fog that are common to the island. This experiment sought to quantify the volume of sediment that has been lost on a south facing slope in the middle of the island that …


Radiocarbon Isotopic Classification Of Deep Tropical Forest Soils, Brooke Butler, Karis J. McFarlane, Jennifer Pett-Ridge, Katherine A. Heckman 2015 University of Tennessee - Knoxville

Radiocarbon Isotopic Classification Of Deep Tropical Forest Soils, Brooke Butler, Karis J. Mcfarlane, Jennifer Pett-Ridge, Katherine A. Heckman

STAR Program Research Presentations

Tropical forest soils have an important role in global carbon (C) stocks. Small changes in the cycling of C could drastically affect atmospheric carbon dioxide (CO2) concentrations and active cycling of carbon in a forest community. Currently, little is understood of how tropical forest soils will respond to the increasing global temperatures. To examine the effects of warming/ drought on losses of older versus younger soil C pools, we implemented radiocarbon (14C) isotopic characterization of various soil plot samples and depths from the Luquillo Experimental Forest, Puerto Rico. 14C was measured using Accelerated Mass Spectrometry (AMS) from catalytically condensed carbon …


Winter Freeze Decreases The Emergence Of Fauna And Flora In California Vernal Pools, Korena S. Hendryx, Jamie Kneitel 2015 California State University - Sacramento

Winter Freeze Decreases The Emergence Of Fauna And Flora In California Vernal Pools, Korena S. Hendryx, Jamie Kneitel

STAR Program Research Presentations

Impacts of global climate change is observed in many ecological systems. Temporary aquatic ecosystems, including California vernal pools, are especially sensitive to climatic variation, but most species are adapted to the annual fluctuations in precipitation and temperature. Since vernal pools experience an inundation and desiccation every year, species that occupy the ecosystem have adaptations to this cycle. Many species survive drought by creating resting eggs to then re-emerge upon inundation However, climate changes outside the typical range may have deleterious effects on these populations. Moreover, climate variation can have secondary effects on the community. For example, the amount of precipitation …


Ichthyoplankton Distribution And Assemblage Within And Around The Saco River Plume, Tracey Bauer 2015 University of New England

Ichthyoplankton Distribution And Assemblage Within And Around The Saco River Plume, Tracey Bauer

All Theses And Dissertations

A majority of research has focused on the importance of large river plumes for ichthyoplankton survival and recruitment. However, the impacts of smaller, more ephemeral river plumes, such as those commonly found in the Gulf of Maine, on ichthyoplankton are far less understood. The purpose of the current study was to use a small river plume located in the southern Gulf of Maine as a model system to increase our understanding of their effects on ichthyoplankton distribution and diversity, and determine what biotic and abiotic factors may be influencing any differences observed. Plankton tow sampling revealed that although ichthyoplankton abundance …


Habitat Use By Spruce Grouse In A Fragmented System, Laurel A. Hill 2015 Northern Michigan University

Habitat Use By Spruce Grouse In A Fragmented System, Laurel A. Hill

All NMU Master's Theses

The spruce grouse is a boreal obligate species that has been protected in Michigan since 1915 (Ammann 1963). Despite protection, the status of spruce grouse is uncertain in Michigan and other parts of the Midwest, and there have been few attempts at large-scale surveys or monitoring (Williamson et al. 2008). I studied a population of spruce grouse near the southern edge of their range on the Yellow Dog Plains in Marquette County, Michigan.

I investigated fecal pellet counts as a possible method to assess spruce grouse presence and habitat use. My results validated the use of fecal pellet occurrence as …


Sustaining The Saco Estuary: Final Report 2015, Christine B. Feurt Ph D, Pamela A. Morgan, Mark D. O. Adams, Anna L. Bass, Carrie J. Byron, Michael C. Daley, Michael O. Esty, Noah G. Perlut, Kayla Smith, Tyler Spillane, Michelle M. Steen-Adams, James Sulikowski, Stephan I. Zeeman, Jacob Aman, Michele Dionne, Jeremy Miller, Kristin Wilson 2015 University of New England

Sustaining The Saco Estuary: Final Report 2015, Christine B. Feurt Ph D, Pamela A. Morgan, Mark D. O. Adams, Anna L. Bass, Carrie J. Byron, Michael C. Daley, Michael O. Esty, Noah G. Perlut, Kayla Smith, Tyler Spillane, Michelle M. Steen-Adams, James Sulikowski, Stephan I. Zeeman, Jacob Aman, Michele Dionne, Jeremy Miller, Kristin Wilson

Environmental Studies Faculty Publications

This study focuses on the Saco estuary, the tidal portion of the Saco River, which drains the largest watershed in southern Maine. With headwaters in the White Mountains of New Hampshire, the watershed encompasses more than 4,400 km2, and provides clean healthy drinking water to over 100,000 people living and working in communities in southern Maine.

When the study began in 2009, very little was known about the ecology of the Saco estuary. Researchers at the University of New England and the Wells National Estuarine Research Reserve employed the process of collaborative learning to bring together people who …


Governance Criteria For Effective Transboundary Biodiversity Conservation, Michelle Mei Ling LIM 2015 Singapore Management University

Governance Criteria For Effective Transboundary Biodiversity Conservation, Michelle Mei Ling Lim

Research Collection Yong Pung How School Of Law

Intact ecosystems across jurisdictional boundaries are of growing importance as the world continues to experience the impacts of climate change. International boundaries have, however, been drawn for political rather than ecological reasons. Ecosystem components often occur in more than one nation and are consequently subject to conflicting management and land-use practices. This research integrates the legal, institutional and environmental management components of transboundary biodiversity conservation to propose a comprehensive framework for evaluating the potential effectiveness of transboundary conservation regimes. The paper presents twelve criteria for the effective transboundary conservation of terrestrial biodiversity. These criteria can assist in the evaluation of …


Discovery And Delimitation: Criconematid Nematodes Of North American Grasslands, Magdalena Jean Olson 2015 University of Nebraska-Lincoln

Discovery And Delimitation: Criconematid Nematodes Of North American Grasslands, Magdalena Jean Olson

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Approximately 200 years ago, North American landscapes were dominated by vast expanses of grassland. The Great Plains, an ecologically complex and diverse ecoregion, extended from Canada to the Gulf of Mexico, and from the Rocky Mountains to the border of the eastern hardwood forest in Indiana. Now the original tallgrass prairie exists in small widely dispersed remnant patches surrounded by agroecosystems. This study is an effort to characterize soil nematode diversity and population structure within those remnant patches. The plant parasitic nematode family Criconematidae serves as our indicator for nematode diversity, due to its global distribution, high abundance in natural …


Mammalian Records From Southwestern Kansas And Northwestern Oklahoma, Including The First Record Of Crawford’S Desert Shrew (Notiosorex Crawfordi) From Kansas, Cody A. Dreier, Keith Geluso, Jennifer D. Frisch, Brittney N. Adams, Alyx R. Lingenfelter, Anthony E. Bridger, Patricia Freeman, Cliff Lemen, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Curtis J. Schmidt 2015 University of Nebraska at Kearney

Mammalian Records From Southwestern Kansas And Northwestern Oklahoma, Including The First Record Of Crawford’S Desert Shrew (Notiosorex Crawfordi) From Kansas, Cody A. Dreier, Keith Geluso, Jennifer D. Frisch, Brittney N. Adams, Alyx R. Lingenfelter, Anthony E. Bridger, Patricia Freeman, Cliff Lemen, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Curtis J. Schmidt

School of Natural Resources: Faculty Publications

Mammalian distributions are constantly changing. Some distributional shifts reflect habitat change, climate change, and human transplantations; thus, such shifts are due to actual expansions or contractions of populations. However, other species ranges that appear to shift as the result of new records being added to known distributional limits actually might reflect populations that previously were undetected due to a lack of past surveys or species that are difficult to detect. In 2013, multiple techniques were employed to document mammalian distributional records in southwestern Kansas and northwestern Oklahoma. We discovered three new county records in Morton County, Kansas (Crawford’s Desert Shrew, …


Increased Harbor Porpoise Mortality In The Pacific Northwest, Usa: Understanding When Higher Levels May Be Normal, Jessica L. Higgins, Stephen A. Raverty, Stephanie A. Norman, John Calambokidis, Joseph K. Gaydos, Deborah A. Duffield, Dyanna M. Lambourn, James M. Rice, Brad Hanson, Kristin Wilkinson, Steven J. Jeffries, Brent Norberg, Lynne Barre 2015 Collective

Increased Harbor Porpoise Mortality In The Pacific Northwest, Usa: Understanding When Higher Levels May Be Normal, Jessica L. Higgins, Stephen A. Raverty, Stephanie A. Norman, John Calambokidis, Joseph K. Gaydos, Deborah A. Duffield, Dyanna M. Lambourn, James M. Rice, Brad Hanson, Kristin Wilkinson, Steven J. Jeffries, Brent Norberg, Lynne Barre

Biology Faculty Publications and Presentations

In 2006, a marked increase in harbor porpoise Phocoena phocoena strandings were reported in the Pacific Northwest of the USA, resulting in the declaration of an unusual mortality event (UME) for Washington and Oregon to facilitate investigation into potential causes. The UME was in place during all of 2006 and 2007, and a total of 114 porpoises stranded during this period. Responders examined 95 porpoises; of these, detailed necropsies were conducted on 75 animals. Here we review the findings related to this event and how these compared to the years immediately before and after the UME. Relatively equal numbers among …


At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard 2015 University of Nebraska - Lincoln

At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard

Zea E-Books Collection

This volume presents fourteen essays (some updated) that originally appeared in Prairie Fire, a monthly free newspaper that for seven years (as of 2015) has carried important messages of social, environmental, and economic issues in a mature and nonpartisan manner to tens of thousands of residents of Nebraska, western Iowa, eastern Colorado, and southern South Dakota, and by mail to subscribers in the rest of the world. These essays discuss the North American east-west ecological boundaries, spring migration events, birds at the bird feeder, feathered survivors of a glacial past, the threatened sharp-tailed grouse of Nebraska and South Dakota, and …


The Pioneer Of Santa Rosa Island, Andrea Martinez, Michael Perez, Kathryn McEachern, Sarah Chaney, Ken Niessen 2015 California State University - Channel Islands

The Pioneer Of Santa Rosa Island, Andrea Martinez, Michael Perez, Kathryn Mceachern, Sarah Chaney, Ken Niessen

STAR Program Research Presentations

Santa Rosa Island which is part of the Channel Islands in California has a ranching history that goes as far back as the year 1843. While rich in history, the island is no longer “rich” in native plant populations due to the sheep, cattle and other livestock that once occupied the island. As a result of these grazers that the ranchers livelihood depended on, a great disturbance in the native plant population took place. It is up to plants such as Baccharis pilularis, commonly known as Coyote brush, to assist these endangered and threatened plants to once again flourish …


Rock Creek Restoration Macroinvertebrate Monitoring Report, Daniel Bedell 2015 Portland State University

Rock Creek Restoration Macroinvertebrate Monitoring Report, Daniel Bedell

Environmental Science and Management Professional Master's Project Reports

Stream restoration is widely used to rebuild habitat for native fisheries, but it is not well understood how current habitat reconstruction practices affect biological diversity. Citizen Science programs have potential to provide supplemental macroinvertebrate data for effectiveness monitoring of reach-scale restoration projects but variability in training, experience and collection methods can make interpretation difficult. The Clackamas Water Environment Services Watershed Health Education Program (WHEP) is an example of a Citizen Science-based program actively collecting biological data from restored streams. The purpose of this project was to use WHEP student-collected data to detect benthic macroinvertebrate community responses to stream restoration practices. …


Wpa News 97 (2015), World Pheasant Association 2015 University of Nebraska - Lincoln

Wpa News 97 (2015), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Summer 2015), number 97

Published by the World Pheasant Association


Is Chir Pine Displacing Banj Oak In The Central Himalaya? Socioeconomic Implications For Local People And The Conservation Of Oak Forest Biodiversity, Ankush Nautiyal 2015 University of Arkansas, Fayetteville

Is Chir Pine Displacing Banj Oak In The Central Himalaya? Socioeconomic Implications For Local People And The Conservation Of Oak Forest Biodiversity, Ankush Nautiyal

Graduate Theses and Dissertations

Various studies have suggested that chir pine (Pinus roxburghii) is replacing banj oak (Quercus leucotrichophora) in the Central Himalaya. Five sites with three different types of forests (banj oak, chir pine and mixed oak-pine) were sampled to compare the diversity of their vegetation and to assess the impact of this ongoing conversion on biodiversity. Soil samples collected from oak and pine forests were analyzed and compared. In addition, dendrochronology was used to obtain age estimates of chir pine and to understand the growth response of this species to precipitation. Also, samples of ectomycorrhizal fungi were collected in the form of …


Ecology, Behavior And Bionomics First Genotyping Of Spodoptera Frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) Progeny From Crosses Between Bt-Resistant And Bt-Susceptible Populations, And 65-Locus Discrimination Of Isofamilies, Renee S. Arias, Maribel Portilla, J. D. Ray, Carlos A. Blanco, S. A. Simpson, Brian E. Scheffler 2015 U.S.D.A. National Peanut Res. Lab.

Ecology, Behavior And Bionomics First Genotyping Of Spodoptera Frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) Progeny From Crosses Between Bt-Resistant And Bt-Susceptible Populations, And 65-Locus Discrimination Of Isofamilies, Renee S. Arias, Maribel Portilla, J. D. Ray, Carlos A. Blanco, S. A. Simpson, Brian E. Scheffler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Concerns exist that Bt-resistant populations of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) found in Puerto Rico, could spread to continental United States, and about the lack of molecular tools to monitor potential crosses or distinguish populations. In this work, the feasibility of genotyping S. frugiperda crosses between Bacillus thuringiensis (Berliner) (Bacillales: Bacillaceae) (Bt) resistant and susceptible populations using simple sequence repeats (SSRs, or microsatellites) was assessed. Parents and their corresponding progeny (five resistant, five susceptible phenotype) were genotyped using 192 SSRs on three reciprocate crosses alternating male and female from Bt-susceptible and Bt-resistant populations. Oviposition, mortality and fecundity were …


Medicinal Plants Of Turmic Valley (Central Karakoram National Park), Gilgit-Baltistan, Pakistan, Sher Wali Khan, Qamar Abbas, Syed Najmul Hassan, Hawas Khan, Azhar Hussain 2015 Department of Biological Sciences, Karakoram International University, Gilgit, Pakistan

Medicinal Plants Of Turmic Valley (Central Karakoram National Park), Gilgit-Baltistan, Pakistan, Sher Wali Khan, Qamar Abbas, Syed Najmul Hassan, Hawas Khan, Azhar Hussain

Journal of Bioresource Management

This study was undertaken to enumerate the medicinal plants of the area, find out the conservation status, and record the folk knowledge from the inhabitants of Turmic Valley during 2011-2013. The valley is located in the Rondo division of the District Skardu on the Northeastern side of the Indus River. The detailed information about the local flora regarding medicinal uses was collected from the local herbal healers (Hakeems) and other knowledgeable people. Locally used herbs of the area prevent and cure the people from various diseases such as joint pains, bronchitis, flu and fever, lowering blood pressure, constipation, …


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