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Geography Commons

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2012

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Articles 31 - 60 of 580

Full-Text Articles in Geography

Episodic Recruitment And Climate Analysis Of Ponderosa Pine On The Palmer Divide, Eastern Colorado, William Henry Brenton Jr. Nov 2012

Episodic Recruitment And Climate Analysis Of Ponderosa Pine On The Palmer Divide, Eastern Colorado, William Henry Brenton Jr.

Electronic Theses and Dissertations

Previous recruitment studies on populations of ponderosa pine (Pinus ponderosa P. & C. Lawson) in Colorado have been limited to the western mountains and the Front Range. In this research I used tree-ring data to reconstruct recruitment for ponderosa pine near the eastern limits of its distribution at two sites on the Palmer Divide, Eastern Colorado, to determine the relative climate sensitivity of the two sites, and the extent to which climate or other factors may have influenced recruitment at the sites. The results of the tree-ring analysis suggest that ponderosa pines in more the easterly site lower elevation …


Income Inequality In U.S. Metropolitan Areas: Which Areas Have The Greatest Inequality And Why?, C. Peterson Compton Nov 2012

Income Inequality In U.S. Metropolitan Areas: Which Areas Have The Greatest Inequality And Why?, C. Peterson Compton

Electronic Theses and Dissertations

In recent years, much focus has been placed on the high and growing level of income inequality in the United States. This composition begins to fill a void in the existing literature by examining specific urban areas that have particularly high levels of inequality and the characteristics that factor into inequality. In this paper, I construct a qualitative model for a particularly unequal metropolitan area. I then apply the model to a set of U.S. metros that are among the most unequal in the country and share a particular set of characteristics consistent with the model.


Acquisition Of Airborne Imagery In Support Of Deepwater Horizon Oil Spill Recovery Assessments, Charles R. Bostater, Frank Edgar Müller-Karger Oct 2012

Acquisition Of Airborne Imagery In Support Of Deepwater Horizon Oil Spill Recovery Assessments, Charles R. Bostater, Frank Edgar Müller-Karger

Ocean Engineering and Marine Sciences Faculty Publications

Remote sensing imagery was collected from a low flying aircraft along the near coastal waters of the Florida Panhandle and northern Gulf of Mexico and into Barataria Bay, Louisiana, USA, during March 2011. Imagery was acquired from an aircraft that simultaneously collected traditional photogrammetric film imagery, digital video, digital still images, and digital hyperspectral imagery. The original purpose of the project was to collect airborne imagery to support assessment of weathered oil in littoral areas influenced by the Deepwater Horizon oil and gas spill that occurred during the spring and summer of 2010. This paper describes the data acquired and …


Contrast Based Band Selection For Optimized Weathered Oil Detection In Hyperspectral Images, Florian Levaux, Charles R. Bostater, Xavier Neyt Oct 2012

Contrast Based Band Selection For Optimized Weathered Oil Detection In Hyperspectral Images, Florian Levaux, Charles R. Bostater, Xavier Neyt

Ocean Engineering and Marine Sciences Faculty Publications

Hyperspectral imagery offers unique benefits for detection of land and water features due to the information contained in reflectance signatures such as the bi-directional reflectance distribution function or BRDF. The reflectance signature directly shows the relative absorption and backscattering features of targets. These features can be very useful in shoreline monitoring or surveillance applications, for example to detect weathered oil. In real-time detection applications, processing of hyperspectral data can be an important tool and Optimal band selection is thus important in real time applications in order to select the essential bands using the absorption and backscatter information. In the present …


Airborne Multisensor Remote Sensing Systems For Subsurface Feature Detection In Littoral Zones, Charles R. Bostater Oct 2012

Airborne Multisensor Remote Sensing Systems For Subsurface Feature Detection In Littoral Zones, Charles R. Bostater

Ocean Engineering and Marine Sciences Faculty Publications

This paper describes low altitude mobile imaging of near coastal waters in the Northern Gulf of Mexico. A suite of mobile multispectral and hyperspectral sensors were flown between ∼1,000m to ∼3000m altitudes in order detect subsurface features in nearby wetlands and littoral zone areas following the Deepwater Horizon oil spill. In this paper techniques used to develop, integrate and calibrate the airborne sensors are described. The sensors include a multispectral digital frame camera system, a traditional photogrammetric camera, and a small custom hyperspectral imaging system with custom software. Ancillary sensors include include multiple differential GPS and inertial motion unit (IMU) …


Government Documents On Rare Earth Minerals, Bert Chapman Oct 2012

Government Documents On Rare Earth Minerals, Bert Chapman

Libraries Faculty and Staff Presentations

Rare earth minerals contain unique chemical and physical properties such as lanthanum, are found in small concentrations, need extensive precise processes to separate, and are critical components of modern technologies such as laser guidance systems, personal electronics such as Blackberries, and satellites. The U.S. has some rare earth resources, but is heavily dependent on access to them from from Afghanistan, Bolivia, and China. Losing access to these resources would have significant economic, military, and political implications. This presentation will highlight government information resources on rare earth minerals from agencies such as the Department of Energy (DOE), Department of Defense (DOD), …


Could Us-Syrian Strategies Lead To Genocide?, David J. Keeling Oct 2012

Could Us-Syrian Strategies Lead To Genocide?, David J. Keeling

Earth, Environmental, and Atmospheric Sciences Faculty Publications

No abstract provided.


The Housing Preferences And Location Choices Of Second Generation South Asians Living In Ethnic Enclaves, Virpal Kataure, Margaret Walton-Roberts Oct 2012

The Housing Preferences And Location Choices Of Second Generation South Asians Living In Ethnic Enclaves, Virpal Kataure, Margaret Walton-Roberts

Geography and Environmental Studies Faculty Publications

Canada has experienced the development of suburban ethnic enclaves by established immigrant diaspora groups surrounding major metropolitan centres. However, less is known regarding the housing and location preferences of their maturing offspring population, known as the second-generation. This paper seeks to explain the housing preferences and location choices of second-generation South Asians residing in Brampton's ethnic enclaves, a suburban city on the periphery of Toronto. This research draws on the home leaving process and integrates the theoretical perspectives of ethnic enclaves and the life cycle. A telephone survey conducted in Brampton's ethnic enclaves suggests a dominant preference of low-density, detached-style …


Setting The Agenda: Asia And Latin America In The 21st Century, Ariel C. Armony Oct 2012

Setting The Agenda: Asia And Latin America In The 21st Century, Ariel C. Armony

Center for Latin American Studies Publications

Latin America and Asia are among the world’s fastest growing regions. Trade between Asia and Latin American and Caribbean countries has risen dramatically in recent years. It is undeniable that Asia now plays a formidable role in the economic development of the region. This publication emerges out of the University of Miami’s 2012 “Asia and Latin America in the 21st Century” conference, where leaders from academic, policy, business, and media communities from around the world convened to address the macroeconomic trends, trade relations, and sociopolitical trends that have emerged as the links between Asia and Latin America strengthen. Organized …


The Role Of Landscape Connectivity In Planning And Implementing Conservation And Restoration Priorities. Issues In Ecology, Doborah Rudnick, Sadie J. Ryan, Paul Beier, Samual A. Cushman, Fred Dieffenbach, Clinton Epps, Leah R. Gerber, Joel N. Hartter, Jeff S. Jenness, Julia Kintsch, Adina M. Merenlender, Ryan M. Perkl, Damian V. Perziosi, Stephen C. Trombulack Oct 2012

The Role Of Landscape Connectivity In Planning And Implementing Conservation And Restoration Priorities. Issues In Ecology, Doborah Rudnick, Sadie J. Ryan, Paul Beier, Samual A. Cushman, Fred Dieffenbach, Clinton Epps, Leah R. Gerber, Joel N. Hartter, Jeff S. Jenness, Julia Kintsch, Adina M. Merenlender, Ryan M. Perkl, Damian V. Perziosi, Stephen C. Trombulack

Geography

Landscape connectivity, the extent to which a landscape facilitates the movements of organisms and their genes, faces critical threats from both fragmentation and habitat loss. Many conservation efforts focus on protecting and enhancing connectivity to offset the impacts of habitat loss and fragmentation on biodiversity conservation, and to increase the resilience of reserve networks to potential threats associated with climate change. Loss of connectivity can reduce the size and quality of available habitat, impede and disrupt movement (including dispersal) to new habitats, and affect seasonal migration patterns. These changes can lead, in turn, to detrimental effects for populations and species, …


La Vista Desde Arriba: El Uso De Cartografía Participativa Para Empoderar A Las Comunidades Y Promover La Conservación Del Medio Ambiente Los Mapas Como Herramienta En El Proyecto De Cacao Silvestre En Baures, Beni, Lily Alexander Oct 2012

La Vista Desde Arriba: El Uso De Cartografía Participativa Para Empoderar A Las Comunidades Y Promover La Conservación Del Medio Ambiente Los Mapas Como Herramienta En El Proyecto De Cacao Silvestre En Baures, Beni, Lily Alexander

Independent Study Project (ISP) Collection

El tema de este proyecto es la aplicación de la cartografía participativa con cinco diferentes comunidades de recolectores del cacao en la región de Baures, Bolivia. La investigación explora los elementos de esta metodología, cómo se implementa este proceso y el papel que los mapas pueden tener en el empoderamiento de la gente local de gestionar sus propios recursos naturales en una manera más sostenible. A través de mapas parlantes dibujados por las comunidades, reuniones con la gente local, coordenadas de GPS y digitalizaciones de la geografía de la región, he producido una variedad de mapas que representan el conocimiento …


Shaping Ourspace, Becky Becker, Amanda Rees Oct 2012

Shaping Ourspace, Becky Becker, Amanda Rees

Columbus Community Geography Center

The Shaping OurSpace program was developed over five, half-day meetings at the Girls Inc. site at Booker T. Washington Homes (BTW), in Columbus, Georgia. Approximately 12 summer camp girls (ages between 7 and 15) took part in the program (this varied from meeting to meeting). Two faculty from Columbus State University developed the weekly program to support the girls’ involvement in the planning process to envision a future for the neighborhood: Dr. Becky Becker (Department of Theatre) and Dr. Amanda Rees (Department of History and Geography).

Activities

The program was a mix of theatre activities designed to support listening and …


Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds Oct 2012

Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds

Aquaculture Collection

During offshore and onshore studies (2004 to 2009), the interactions between pair-trawls and short-beaked common dolphins (Delphinus delphis) were studied to better understand the impact of bycatch. A ‘hotspot’ area where pair-trawls overlapped with high dolphin abundance was identified. We made comparisons between boat-based data collected in absence and presence of pair-trawlers. The relative abundance and group-size of dolphins was significantly higher in the presence of pair-trawlers. Dolphins were observed associating with towing and hauling procedures. Significantly, more carcasses occurred in areas with hauling-activity than those without. Body-temperatures obtained from carcasses found near operating pair-trawlers indicated that bycatch mostly occurred …


A ‘‘Practical’’ Ethic For Animals, David Fraser Oct 2012

A ‘‘Practical’’ Ethic For Animals, David Fraser

Ethics and Animal Welfare Collection

Drawing on the features of ‘‘practical philosophy’’ described by Toulmin (1990), a ‘‘practical’’ ethic for animals would be rooted in knowledge of how people affect animals, and would provide guidance on the diverse ethical concerns that arise. Human activities affect animals in four broad ways: (1) keeping animals, for example, on farms and as companions, (2) causing intentional harm to animals, for example through slaughter and hunting, (3) causing direct but unintended harm to animals, for example by cropping practices and vehicle collisions, and (4) harming animals indirectly by disturbing life-sustaining processes and balances of nature, for example by habitat …


Multi-Temporal Analysis Of Crop Biomass Using Selected Environmental Variables And Remote Sensing Derived Indices, Nwakaku M. Ajaere Oct 2012

Multi-Temporal Analysis Of Crop Biomass Using Selected Environmental Variables And Remote Sensing Derived Indices, Nwakaku M. Ajaere

Department of Geography: Dissertations, Theses, and Student Research

Measuring biomass in crops is important for yield prediction, nutrient management and analysis of carbon sequestration. Studying crop phenology via biomass can also provide insight into not only the state of the ecosystem but also environmental factors which may affect crop growth. Remote sensing techniques, as an alternative to traditional in-situ sampling methods for biomass assessment, provide potentially more efficient data acquisition and cost-effective procedures. Numerous vegetation indices (VI) have been developed which use spectral reflectance data to measure plant biophysical characteristics. The first objective of this research was to examine the correlation between crop biomass and selected environmental variables …


The Right Call: Baseball Coaches' Attempts To Influence Umpires, Kevin Warneke, David C. Ogden Oct 2012

The Right Call: Baseball Coaches' Attempts To Influence Umpires, Kevin Warneke, David C. Ogden

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

On-field conversations and confrontations between baseball coaches and umpires have long been a part of the game. An umpire's decision can alter the course of the game, but little has been written about the exchanges between a coach or manager and umpire, especially in relation to theoretical considerations. This study applies management and leadership theories in exploring the strategies baseball coaches use to contest an umpire's decision. By using leadership scholar John E. Barbuto's concept of influence tactics and the various types of social power discussed by sociologists John R. French and Bertram Raven, the study also tests the congruence …


Documenting Change At Upper Hamburg Bend: Nebraska's First Side-Channel Restoration, Brandon L. Eder, Gerald Mestl Oct 2012

Documenting Change At Upper Hamburg Bend: Nebraska's First Side-Channel Restoration, Brandon L. Eder, Gerald Mestl

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

In 1996 a side channel was excavated on 629 hectares of former agricultural land at Upper Hamburg Bend on the Missouri River in Otoe County, NE. This was the first side channel constructed on the Missouri River in an attempt to restore lost aquatic habitat. The initial design was for an approximately 4,200 m long side channel to be constructed with a 3 m bottom width. Development ofthe site was to be dependent on flows diverted from the main channel of the river with a final projected top width of 61 m. The side channel was completed in the spring, …


Evaluating The Role Of Latinidad And The Latino Threat In The State Of Missouri, Joel Jennings, J.S. Onésimo Sandoval Oct 2012

Evaluating The Role Of Latinidad And The Latino Threat In The State Of Missouri, Joel Jennings, J.S. Onésimo Sandoval

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Growing Latino populations in midwestern cities of the United States are leading to the creation of contested ethnic spaces and urban landscapes. In this article we examine the historical, demographic, and social contexts associated with a growing sense of Latinidad and the countervailing Latino threat narrative in Kansas City and St. Louis, the two largest metropolitan areas in Missouri. Latinidad, or a notion of belonging based on ethnic identity in Missouri, is being challenged by nativist discourses that frame the growing Latino population as a threat. We highlight the different historical trajectories and geographical characteristics that have created distinct demographic …


Reconsidering National Park Interpretation Of The Great Plains And Trans-Mississippi West, Robert Pahre Oct 2012

Reconsidering National Park Interpretation Of The Great Plains And Trans-Mississippi West, Robert Pahre

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

The National Park Service has generally interpreted its sites in the Great Plains in terms of a Eurocentric narrative of westward expansion. Though some sites are changing (e.g., Little Bighorn), others are not (e.g., Scotts Bluff). Even those sites that have changed still retain important elements of traditional narratives, which often date to the 1930s or to the Mission 66 period (1956-66). The newest sites, such as Washita Battlefield, tell newer stories that resonate well with today's visitors. These provide a model for revising older sites. Giving greater attention to causes and consequences, aiming for a richer mix of disciplinary …


Review Of Implementing The Endangered Species Act On The Platte Basin Water Commons. By David M. Freeman, Mary Bomberger Brown Oct 2012

Review Of Implementing The Endangered Species Act On The Platte Basin Water Commons. By David M. Freeman, Mary Bomberger Brown

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

David M. Freeman has written a landmark treatise on a landmark event-the development of the Platte River Habitat Recovery Program. The program's goal. is to integrate provisions of the Endangered Species Act and the· habitat needs of four imperiled species (interior least tern, piping plover, whooping crane, and pallid sturgeon) into river basin-wide water management policy. The process was formally initiated 209 in 1997 with the signing of a cooperative agreement between the states of Colorado, Nebraska, and Wyoming and the U.S. Department of the Interior, but discussions had been under way since the 1970s. The process was completed in …


Review Of Together We Can: Pathways To Collective Leadership In Agriculture At Texas A&M. By Edward A. Hiler And Steven L. Bosserman., Theodore R. Alter Oct 2012

Review Of Together We Can: Pathways To Collective Leadership In Agriculture At Texas A&M.; By Edward A. Hiler And Steven L. Bosserman., Theodore R. Alter

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Edward Hiler's leadership journey through a series of major administrative positions at Texas A&M is a story of collective leadership, as told by Hiler himself, and framed by organizational and leadership strategist Steve Bosserman. This brief, highly readable, and provocative book illustrates the philosophical and operational essences of collective leadership. The shifting demographic, economic, ecological, and sociopolitical realities of Texas and the Great Plains called for optimizing the contributions of Texas A&M and other institutions of higher education in addressing critical issues. Hiler, ever the visionary, saw the power of an inclusive, egalitarian, shared leadership style that allowed diverse constituencies …


Review Of Wet Prairie: People, Land, And Water In Agricultural Manitoba. By Shannon Stunden Bower. Foreword By Graeme Wynn., Sterling Evans Oct 2012

Review Of Wet Prairie: People, Land, And Water In Agricultural Manitoba. By Shannon Stunden Bower. Foreword By Graeme Wynn., Sterling Evans

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Wet Prairie is excellent environmental history that evaluates the human/nature relationship. Stunden Bower writes, "In grappling with the environment of their province, Manitobans confronted not only the environmental conditions, but also the political and social arrangements that bore on their lives." Though no easy task, she succeeds in showing these relationships in what is an important contribution to the geographical, environmental, political, and cultural history of the Prairie Provinces and to the Great Plains as a whole.


Review Of Agricultural History: History Of The Prairie West Series, Volume 3. Edited By Gregory P. Marchildon., Bradford Rennie Oct 2012

Review Of Agricultural History: History Of The Prairie West Series, Volume 3. Edited By Gregory P. Marchildon., Bradford Rennie

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

This is the third book of the History of the Prairie West Series published by the Canadian Plains Research Center in Regina, Saskatchewan. The series, edited by Gregory P. Marchildon, consists of articles previously published in Prairie Forum, a journal devoted to the northern Great Plains, primarily the region encompassing the provinces of Alberta, Saskatchewan, and Manitoba. The book is organized into four sections: the first contains broad articles that survey prairie history; the other three focus on farming, ranching, and marketing, respectively.


Review Of Birds Of Southwestern Nebraska: An Annotated Check-List Of Species In The North And South Platte River Valleys And At Lake Mcconaughy. By Mary Bomberger Brown, Stephen J. Dinsmore, And Charles R. Brown., Wayne Mollhoff Oct 2012

Review Of Birds Of Southwestern Nebraska: An Annotated Check-List Of Species In The North And South Platte River Valleys And At Lake Mcconaughy. By Mary Bomberger Brown, Stephen J. Dinsmore, And Charles R. Brown., Wayne Mollhoff

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Opening with a map of the region under study, Birds of Southwestern Nebraska proceeds, in its introduction, to a summary of the presettlement landscape and a description of the large-scale habitat changes occurring since then, along with avian responses to those changes. While crediting previous avian studies in southwestern Nebraska, often not readily available to the public, the authors note this area initially received little attention from ornithologists, who tended to focus on other biologically unique parts of the state, such as the Sandhills, forests, and Pine Ridge. The body of the book consists of a list of species reported …


Review Of The Midwestern Native Garden: Native Alternatives To Nonnative Flowers And Plants, An Illustrated Guide By Charlotte Adelman And Bernard L. Schwartz, Stephen L. Young Oct 2012

Review Of The Midwestern Native Garden: Native Alternatives To Nonnative Flowers And Plants, An Illustrated Guide By Charlotte Adelman And Bernard L. Schwartz, Stephen L. Young

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Native plants are important for maintaining biodiversity and supporting birds, mammals, and insects in a particular region. The interaction of plants with other organisms is what makes up food webs, and a shift in one will result in change in the other, change that is often detrimental to both. Invasive plant species, which include many nonnative types, can alter ecosystems with lasting effects on hydrology, nutrient cycling, and habitat. Similar to other regions, the Central Plains is increasingly threatened by the establishment of invasive plant species. The reintroduction of native plant species not only in large natural areas, but also …


Review Of White Man's Water: The Politics Of Sobriety In A Native American Community. By Erica Prussing, Paul Spicer Oct 2012

Review Of White Man's Water: The Politics Of Sobriety In A Native American Community. By Erica Prussing, Paul Spicer

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Epidemiological evidence consistently emphasizes the challenges American Indian tribes of the Great Plains confront through excess alcohol consumption. Until Erica Prussing's recent book, however, we have lacked a detailed analysis of the social and cultural context in which these challenges unfold. With a focus on women's experiences across two generations, White Man s Water provides us with a careful description of the social and cultural world of contemporary Northern Cheyennes, coupled with an understanding of how individual experiences within the milieu vary, especially as a function of history.

White Man's Water is a truly significant book: the first book-length ethnographic …


Review Of Keep True: A Life In Politics. By Howard Pawley. Foreword By Paul Moist, Kelly Saunders Oct 2012

Review Of Keep True: A Life In Politics. By Howard Pawley. Foreword By Paul Moist, Kelly Saunders

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Howard Pawley served as premier of Manitoba from 1981 to 1988, a period that stands to this day as one of the most controversial and turbulent in the province's modern history. Keep True: A Life in Politics traces Pawley's life and political career from his birth in Brampton, Ontario, to the defeat of his government in 1988 at the hands of one of his own caucus members. Educated as a teacher and lawyer, Pawley became active in the Cooperative Commonwealth Federation (which later became the New Democratic Party) as a young man before turning his sights on a political career. …


Monitoring Standing Herbage Of The Sands And Choppy Sands Ecological Vegetation Types In The Nebraska Sandhills, Daniel W. Uresk Oct 2012

Monitoring Standing Herbage Of The Sands And Choppy Sands Ecological Vegetation Types In The Nebraska Sandhills, Daniel W. Uresk

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

A modified Robel pole with white and gray alternating bands (2.54 cm) was used to measure vegetation on sands and choppy sands ecological types in the Sandhills of Nebraska. Objectives were to determine the relationship between visual obstruction readings (VOR) and clipped standing herbage, develop guidelines for monitoring standing herbage, and provide sample size estimates. Visual obstruction measurements of standing herbage were linear, and regression coefficients were significant (P< 0.001) for 125 transects (R2 = 0.60, SE = 496 kg/ha). Clipped standing herbage ranged from 293 to 4389 kg/ha with a mean of 1,559 kg/ha. A minimum of four transects (20 stations/transect with four …


Review Of Every Twelve Seconds: Industrialized Slaughter And The Politics Of Sight. By Timothy Pachirat., Donald D. Stull Oct 2012

Review Of Every Twelve Seconds: Industrialized Slaughter And The Politics Of Sight. By Timothy Pachirat., Donald D. Stull

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

In June 2004, political scientist Timothy Pachirat went to work on the killfloor of an unnamed beef slaughterhouse in Omaha, Nebraska. He started out as a "liver hanger" in the cooler. There carcasses hang before being sent to the fabrication floor where "hundreds of handheld knives and saws reinvent chilled half-carcasses as steaks, rounds, and roasts that are then boxed and shipped to distributors and retailers around the world." For four days he worked in the chutes, driving cattle to the knocking box to be stunned, as required by the Humane Slaughter Act, before being turned into meat. Then for …


Review Of Conspecific Attraction And Area Sensitivity Of Grassland Birds, David R.W. Bruinsma, Nicola Koper Oct 2012

Review Of Conspecific Attraction And Area Sensitivity Of Grassland Birds, David R.W. Bruinsma, Nicola Koper

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Many species of grassland birds are area sensitive, which may exacerbate the ecological effects of the extensive loss and fragmentation of grasslands that has taken place across the northern Great Plains. However, the reasons for this area sensitivity are unclear, as vegetation structure, matrix composition, and restriction of movements among patches do not seem to provide viable explanations for species native to grasslands. Con specific attraction, whereby species are behaviorally stimulated to select habitat or establish territories near individuals of the same species, may help explain this area sensitivity. We review and discuss theoretical and empirical research on avian conspecific …