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

Biodiversity Commons™

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

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4621 - 4650 of 6144

Full-Text Articles in Biodiversity

Slides: Adaptive Management And Best Management Practices On The Southern Ute Indian Reservation, Bob Zahradnik May 2004

Slides: Adaptive Management And Best Management Practices On The Southern Ute Indian Reservation, Bob Zahradnik

Best Management Practices and Adaptive Management in Oil and Gas Development (May 12-13)

Presenter: Bob Zahradnik, Red Willow Production Company

38 slides


Agenda: Best Management Practices And Adaptive Management In Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center May 2004

Agenda: Best Management Practices And Adaptive Management In Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center

Best Management Practices and Adaptive Management in Oil and Gas Development (May 12-13)

Agenda includes summaries of speakers' presentations

Workshop held May 12-13, 2004 at the University of Colorado School of Law and sponsored by the Natural Resources Law Center with support from the William and Flora Hewlett Foundation, BP America and Calpine Corporation

Government agencies, industry and others are beginning to apply the concepts of best management practices and adaptive management to oil and gas development. This free workshop will examine what is going on in the Rocky Mountain Region with these innovative management approaches. This timely workshop will be kicked off with a presentation on the Western Governors' Association Coalbed Methane …


Higgins Eye Pearlymussel (Lampsilis Higginsii) Recovery Plan: First Revision May 2004

Higgins Eye Pearlymussel (Lampsilis Higginsii) Recovery Plan: First Revision

Endangered Species Bulletin

TABLE OF CONTENTS:
DISCLAIMER

EXECUTIVE SUMMARY

I. INTRODUCTION

Description of Lampsilis higginsii
Taxonomy and Systematics
Morphological Description
Historical and Present Distributions
Recent Reintroductions
Essential Habitat Areas
Critical Habitat
Biology, Ecology and Life History
Reproduction
Feeding
Habitat
Substrate
Stream Flow/Current/Hydrologic Variability
Water Quality
Water Quality Data Gaps
Community Associations
Non-human Predators
Genetics
Reasons for listing
Present Threats
Zebra Mussels and other Invasive Species
Habitat Alteration
Water Quality
Commercial Harvest
Conservation Measures
Ten-Year Field Studies in Essential Habitat Areas
Development of Relocation (Translocation) Techniques
Development of Artificial Propagation Techniques
Development of Uniform Regulations Concerning Clam Harvesting Methods
Summary of Current State Mussel …


Rare, Threatened And Endangered Species Of Oregon (2004), James S. Kagan, Sue Vrilakas, Eleanor P. Gaines, Cliff Alton, Fern Mcarthur, Kuuipo Walsh, Eric Scheuering, John A. Christy, Jon Hak, Claudine Tobalske, Annie Weiland, Theresa Koloszar, Oregon Natural Heritage Information Center May 2004

Rare, Threatened And Endangered Species Of Oregon (2004), James S. Kagan, Sue Vrilakas, Eleanor P. Gaines, Cliff Alton, Fern Mcarthur, Kuuipo Walsh, Eric Scheuering, John A. Christy, Jon Hak, Claudine Tobalske, Annie Weiland, Theresa Koloszar, Oregon Natural Heritage Information Center

Institute for Natural Resources Publications

Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the next 100 years. The major cause of this phenomenon is large-scale destruction of native habitats, which has increased since European settlement began in the mid 1800's - in Oregon and throughout the New World.

Once lost, a species can never be recovered, and there is no way of knowing how useful it may have been. We do know that human beings and many of their industries depend …


Feeding Behavior Of Sheep In Relation To Kinetics Of Sagebrush Monoterpenes: Implications For Landscape Biodiversity, Luthando E. Dziba May 2004

Feeding Behavior Of Sheep In Relation To Kinetics Of Sagebrush Monoterpenes: Implications For Landscape Biodiversity, Luthando E. Dziba

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The sagebrush steppe is one of the most extensive vegetation types in the western US and an important habitat for wild and domestic herbivores. When sagebrush dominates, however, forage and habitat quality decline. Although sagebrush is nutritious, its forage value is reduced by terpenes. A better understanding of how terpenes limit intake is vital for increasing consumption of sagebrush and for enhancing and maintaining biodiversity in the sagebrush-steppe.

To better understand how terpenes in sagebrush limit intake, we studied feeding behavior of sheep in the field, influence of sagebrush monoterpenes on regulation of intake in pens, and the feeding behavior …


Ten Suggestions To Strengthen The Science Of Ecology, Gary E. Belovsky, Daniel B. Botkin, Todd A. Crowl, Kenneth W. Cummins, Jerry F. Franklin, Malcolm L. Hunter, Anthony Joern, David B. Lindenmayer, James A. Macmahon, Chris R. Margules, J. Michael Scott Apr 2004

Ten Suggestions To Strengthen The Science Of Ecology, Gary E. Belovsky, Daniel B. Botkin, Todd A. Crowl, Kenneth W. Cummins, Jerry F. Franklin, Malcolm L. Hunter, Anthony Joern, David B. Lindenmayer, James A. Macmahon, Chris R. Margules, J. Michael Scott

Papers in Ecology

There are few well-documented, general ecological principles that can be applied to pressing environmental issues. When they discuss them at all, ecologists often disagree about the relative importance of different aspects of the science’s original and still important issues. It may be that the sum of ecological science is not open to universal statements because of the wide range of organizational, spatial, and temporal phenomena, as well as the sheer number of possible interactions.We believe, however, that the search for general principles has been inadequate to establish the extent to which generalities are possible.We suggest that ecologists may need to …


Re-Assessment Of Carrying Capacities In The Ashburton River Catchment, Alan L. Payne, A M E Van Vreeswyk, K A. Leighton Apr 2004

Re-Assessment Of Carrying Capacities In The Ashburton River Catchment, Alan L. Payne, A M E Van Vreeswyk, K A. Leighton

Agriculture reports

Potential carrying capacities for land systems in the catchment of the Ashburton River were first estimated in 1983 as a result of a rangeland survey of the area undertaken during 1976, 1977 and 1978. Potential carrying capacity (termed capability capacity in the 1988 report) is a suggested sustainable level of use assuming that all pastures are in good range condition, the entire station is adequately watered for the effective management of livestock and seasonal conditions are average.

The Ashburton Land Conservation District Committee had previously requested a re-assessment of carrying capacities for Ashburton stations following the widespread establishment of buffel …


Endangered And Threatened Wildlife And Plants: Designation Of Critical Habitat For Topeka Shiner Mar 2004

Endangered And Threatened Wildlife And Plants: Designation Of Critical Habitat For Topeka Shiner

Endangered Species Bulletin

We, the U.S. Fish and Wildlife Service, announce the reopening of a 30-day public comment period for the proposed rule to designate critical habitat for the Topeka shiner (Notropis topeka) pursuant to the Endangered Species Act of 1973, as amended (Act). The proposed rule to designate critical habitat in the States of Iowa, Kansas, Minnesota, Nebraska, and South Dakota was published on August 21, 2002 (67 FR 54261). We herein propose critical habitat segments for Missouri and one additional segment for South Dakota, and discuss potential exclusions from critical habitat designation under the authority of section 4(b)(2). We …


The Prairie Naturalist Volume 36, No.1 March 2004 Mar 2004

The Prairie Naturalist Volume 36, No.1 March 2004

The Prairie Naturalist

DUCK NESTING SUCCESS IN NORTH DAKOTA ROAD RIGHT-OF-WAYS ▪ J. Walker, S. S. Stephens, M. S. Lindberg, and J. 1. Rotella

DID TALLGRASS PRAIRIE EXTEND INTO PENNSYLVANIA? ▪ D. C. Laughlin

INFLUENCE OF PREY ABUNDANCE ON RAPTORS IN TALLGRASS PRAIRIE ▪ A. W. Reed, G. A. Kaufman, D. A. Rintoul, and D. W. Kaufman

AMERICAN BITTERN NESTING IN THE SAN JOAQUIN VALLEY, CALIFORNIA ▪ L. C. Carroll and F. A. de Szalay

THE FLORA OF THE COTTONWOOD LAKE STUDY AREA, STUTSMAN COUNTY, NORTH DAKOTA ▪ . D. M. Mushet, N. H. Euliss Jr., S. P. Lane, and C. M. Goldade …


A New Subspecies Of Cicindela Nevadica Leconte (Coleoptera: Carbidae: Cicindelinae) From The Badlands Of South Dakota, Stephen M. Spomer Jan 2004

A New Subspecies Of Cicindela Nevadica Leconte (Coleoptera: Carbidae: Cicindelinae) From The Badlands Of South Dakota, Stephen M. Spomer

University of Nebraska State Museum: Entomology Papers

A new subspecies of Cicindela nevadica LeConte, Cicindela nevadica makosika Spomer, is described from the South Dakota Badlands. Geographically, the population occurs at the periphery of the range of C. nevadica knausii Leng. However, this new population is geographically isolated from the nearest C. n. knausii populations, which occur ca. 100 air miles north and over 100 air miles south. Phenotypically, C. n. makosika appears most similar to C. n. tubensis Cazier from northeast Arizona. A possible threat to this population is habitat destruction by cattle.


Agroforestry, Elephants, And Tigers: Balancing Conservation Theory And Practice In Human-Dominated Landscapes Of Southeast Asia, Philip J. Nyhus, R L. Tilson Jan 2004

Agroforestry, Elephants, And Tigers: Balancing Conservation Theory And Practice In Human-Dominated Landscapes Of Southeast Asia, Philip J. Nyhus, R L. Tilson

Faculty Scholarship

Large mammal populations theoretically are best conserved in landscapes where large protected areas are surrounded by buffer zones, connected by corridors, and integrated into a greater ecosystem. Multi-use buffer zones, including those containing complex agroforestry systems, are promoted as one strategy to provide both economic benefits to people and conservation benefits to wildlife. We use the island of Sumatra, Indonesia to explore the benefits and limitations of this strategy. We conclude that conservation benefits are accrued by expanding the habitat available for large mammals but more attention needs to be focused on how to reduce and respond to human–wildlife conflict …


Unusual Behavior By Bison, Bison Bison, Toward Elk, Cervus Elaphus, And Wolves, Canis Lupus, L. David Mech, Rick T. Mcintyre, Douglas W. Smith Jan 2004

Unusual Behavior By Bison, Bison Bison, Toward Elk, Cervus Elaphus, And Wolves, Canis Lupus, L. David Mech, Rick T. Mcintyre, Douglas W. Smith

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

Incidents are described of Bison (Bison bison) in Yellowstone National Park mauling and possibly killing a young Elk (Cervus elaphus) calf, chasing wolves (Canis lupus) off Elk they had just killed or were killing, and keeping the wolves away for extended periods. During one of the latter cases, the Bison knocked a wolf-wounded Elk down. Bison were also seen approaching wolves that were resting and sleeping, rousting them, following them to new resting places and repeating this behavior. These behaviors might represent some type of generalized hyper-defensiveness that functions as an anti-predator strategy.


Wpa News 72 (2004), World Pheasant Association Jan 2004

Wpa News 72 (2004), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2004), number 72

Published by the World Pheasant Association


Microbial Endemism And Biogeography, Brian P. Hedlund, James T. Staley Jan 2004

Microbial Endemism And Biogeography, Brian P. Hedlund, James T. Staley

Life Sciences Faculty Research

The topic of microbial biogeography is almost 100 years old, however, when confronted with questions about the existence and extent of endemism in the microbial world, many microbiologists respond with opinions and theoretical arguments rather than examples of well-conducted studies. We begin this chapter with an overview of this debate as it applies to free-living prokayotes in part because there are relatively few good microbial biogeography studies. Furthermore, the arguments help to frame microbial biogeography in the larger context of biodiversity in that if endemism is common, then many more species exist.


Curassows, Guans And Chacalacas: Status Survey And Conservation Action Plan (2000-2004), Stuart D. Strahl, Daniel M. Brooks Jan 2004

Curassows, Guans And Chacalacas: Status Survey And Conservation Action Plan (2000-2004), Stuart D. Strahl, Daniel M. Brooks

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Executive Summary

Introduction

  • Scope, structure, and objectives of the plan
  • Rationale for the action plan
  • Relevance of the action plan to general biodiversity conservation
  • Cracid Specialist Group activities, strategy, and history
  • Symposia and workshops
  • Cracid Specialist Group publications
  • Other activities related to cracid conservation
  • Cracid natural history
  • Evolution and ecology
  • Biogeography, distribution, and habitat association
  • The role of cracids in ecosystems
  • Cracids as biological indicators of ecosystem health
  • Socio-economic importance of cracids
  • Sustainable use
  • Potential for ecotourism
  • Taxonomic definitions used in this action plan
  • Threats to cracids
  • Hunting pressure
  • Habitat destruction
  • Lack of knowledge
  • Action needed to secure the future …


Endangered Species Bulletin January/February 2004 - Vol. Xxix No. 1 Jan 2004

Endangered Species Bulletin January/February 2004 - Vol. Xxix No. 1

Endangered Species Bulletin

In this issue:
4 Partnerships for Plant Conservation in Texas
6 The Upper San Pedro Partnership
10 Joining Forces for an Island of Biodiversity
12 Giving Nature a Second Chance
14 One Step Closer to Key Deer Recovery
16 Agencies Streamline Permit Process
18 Working Together
20 Partners Restore Coastal Sage Scrub Habitat
22 How the Swift Fox Escaped the List
24 A Partnership to Grow Plovers on the Plains
26 Why all the Fuss Over a Frog?
28 Recovery Planning in the 21st Century
31 Restoring the Columbian White-tailed Deer


Pqf News: Newsletter Of The Wpa/Birdlife/Species Survival Commission Partridge, Quail, And Francolin Specialist Group 20-22 (2004-2007), World Pheasant Association, Birdlife International, Iucn Species Survival Commission Jan 2004

Pqf News: Newsletter Of The Wpa/Birdlife/Species Survival Commission Partridge, Quail, And Francolin Specialist Group 20-22 (2004-2007), World Pheasant Association, Birdlife International, Iucn Species Survival Commission

Galliformes Specialist Group and Affiliated Societies: Newsletters

The purpose of the newsletter is to receive details of new projects, re-assessments of the status of relevant species, interesting discoveries or observations, taxonomic changes, conservation successes or threats and anything else that members might find interesting. We would like in future issues to produce a list of relevant publications which appear during the year in order to keep members up-to-date with current information. We will publish requests for contacts or information, advertisements for conferences and workshops and news of projects and project proposals.

Issue 20 (2004)

International Galliformes Symposium: India 2004, Stephen Browne

Scientist Training Workshop, Brant Faircloth

IUCN …


Boletín De El Iucn/Birdlife/Wpa Grupo De Especialistas En Crácidos 18-22 (2004-2006), Iucn, Birdlife International, Wpa Cracid Specialist Group Jan 2004

Boletín De El Iucn/Birdlife/Wpa Grupo De Especialistas En Crácidos 18-22 (2004-2006), Iucn, Birdlife International, Wpa Cracid Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume 18 (March 2004)

Estatus de Crax rubra en Punta de Manabique, Guatemala: Habitat, tamaño de poblacion, y impacto humano, Knut Eisermann

Status de Crax rubra em Punta de manabique, Guatemala: Habitat, tamanho populacional, e impacto humano, Knut Eisermann

Status of great curassow (Crax rubra) in Punta de Manabique, Guatemala: Habitat, population size, and human impact, Knut Eisermann

Atacan las pavas a las rapaces? Un caso entre Chamaepetes goudotii y Buteo magnirostris en el norte de la cordillera central, Colombia, Paulo C. Pulgarin-R.

Jacus atacam aves de rapina? Um caso entre Chamaepetes goudotii e Buteo magnirostris no norte …


Record High Wolf, Canis Lupus, Pack Density, L. David Mech, Shawn Tracy Jan 2004

Record High Wolf, Canis Lupus, Pack Density, L. David Mech, Shawn Tracy

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

This report documents a year-around Wolf (Canis lupus) density of 18.2/100 km2 and a summer density of 30.8/100 km2, in a northeastern Minnesota Wolf pack. The previous record was a summer density of 14.1/100 km2, for a Wolf pack on Vancouver Island, British Columbia, Canada.


Plant Surrogacy: An Evaluation Of Its Use And Application In The Effort To Conserve Ground Dwelling Invertebrates, Kerry Leigh Ironside Jan 2004

Plant Surrogacy: An Evaluation Of Its Use And Application In The Effort To Conserve Ground Dwelling Invertebrates, Kerry Leigh Ironside

Theses : Honours

A study conducted in the Ridges State Forest, Yanchep was designed to investigate the relationship between plant species richness, vegetation association and ground dwelling invertebrate species richness. Four plant communities were sampled at two scales of measurement. Two treatments were located in woodland and two in heath. Within each vegetation association, plant communities that were representative of both high and low species richness were selected. Three invertebrate orders, Araneae, Coleoptera and Araneae were sorted to morphospecies level. Ordinal richness was also investigated. Two-way ANOVAs indicated that there was no relationship between plant species richness, vegetation association· or the interaction between …


Spectacular Recovery In The Ord River Catchment, A L. Payne, I W. Watson, P E. Novelly Jan 2004

Spectacular Recovery In The Ord River Catchment, A L. Payne, I W. Watson, P E. Novelly

Agriculture reports

Regeneration work on severely damaged country in what is now known as the Ord River Regeneration Reserve (ORRR) commenced in 1960. The ORRR is in the East Kimberley area of Western Australia with an associated small area in the Northern Territory. The work included strip contour cultivation and seeding (which proceeded at various levels of intensity during the 1960s, 1970s and 1980s), fencing and destocking of cattle by mustering over many years, and the eradication of donkeys.


Annual Review Of The World Pheasant Association 2003/2004, World Pheasant Association Jan 2004

Annual Review Of The World Pheasant Association 2003/2004, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Chairman of Trustees' report, Dick Potts

Treasurer's report and accounts, Ian Hoggarth

Conservation activities in 2003/2004, Philip J. K. McGowan and Rahul Kaul

WPA around the world: Highlights from the chapters

Cracid Specialist Group report, Dan M. Brooks

Grouse Specialist Group report, Ilse Storch

Megapode Specialist Group report, Rene Dekker, Darryl Jones, and Gillian C. Baker

Partridge, Quail and Francolin Specialist Group report, John P. Carroll

Pheasant Specialist Group report, Peter J. Garson

Conservation breeding in Europe and Gary Robbins and the United Kingdom Census, John Corder

WPA European Conservation Alain Hennache and Breeding Group, Michel St. Jaime

25 years …


Proceedings Of The Symposium On Conservation Of Quail In The Neotropics, Jack Clinton Eitniear, John T. Baccus, Sheldon L. Dingle, John P. Carroll Jan 2004

Proceedings Of The Symposium On Conservation Of Quail In The Neotropics, Jack Clinton Eitniear, John T. Baccus, Sheldon L. Dingle, John P. Carroll

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Preface, John P. Carroll

Quail of México and Adjacent Central America: Status and Conservation Concerns, John P. Carroll and Jack C. Eitniear

Changing Densities of Singing Quail (Dactylortyx thoracicus) in El Cielo Biosphere, Tamaulipas, Mexico: 1949-1996, Jack C. Eitniear and Alvaro Aragon T.

Status of the Bearded Wood-partridge (Dendrortyx barbatus): With Comments on Its Conservation in Querétaro, John T. Baccus

Aspectos de la Dieta y Anidacon de la Cordorniz Rayata (Banded Quail) Philortyx fasciatus, Fernando Urbina-Torres y Lucila Zaiñhana-Ortiz

Long-tailed Tree-quail (Dendrortyx macroura): Current Knowledge and Research Needs, Gilberto Chavez-Leon

Abundance of the …


Third International Galliformes Symposium 2004 (April 5-10, 2004, Dehradun, India): Abstracts, World Pheasant Association, India Ministry Of Environment And Forests, British High Commission Jan 2004

Third International Galliformes Symposium 2004 (April 5-10, 2004, Dehradun, India): Abstracts, World Pheasant Association, India Ministry Of Environment And Forests, British High Commission

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Abstracts

Strategy for Conservation of Pheasants in Himachal Pradesh, India, A. K. Gulati

An overview of Galliformes Conservation in Sikkim, India, T. R. Sharma

Distribution, status and conservation Galliformes in north east India, Anwaruddin Choudhury

Status of Galliformes in Pakistan and prioritising conservation areas, Rab Nawaz

The status and conservation needs of Nepal 's Galliformes, HemSagar Baral

Status of Galliformes in Bhutan, Rebecca Pradhan

Status and conservation of the Galliformes of Bangladesh, M. Sohrab Uddin Sarker

Galliformes of Sri Lanka: Status and conservation needs, Charles Santiapillai and S. Wijeyamchan

A strategy for the conservation of Galliformes of South Asia, Rahul …


Treaty Governance, Intellectual Property And Biodiversity, John Linarelli Jan 2004

Treaty Governance, Intellectual Property And Biodiversity, John Linarelli

Scholarly Works

When resources become valuable, various social and institutional pressures come to bear to enclose them in a property rights regime. Given the substantial progress of biotechnology and the life sciences, genetic resources found in biological diversity are experiencing such pressures. The question of how much commodification or commercialization of genetic resources is appropriate is of global concern; it affects the distribution of wealth in and among societies and countries. This article explores the emerging treaty law on intellectual property and biodiversity. It inquires What is biodiversity? and Why is biodiversity preservation important? It then focuses on the United Nations Framework …


The Prairie Naturalist Volume 35, No.4 December 2003 Dec 2003

The Prairie Naturalist Volume 35, No.4 December 2003

The Prairie Naturalist

HOME RANGE AND MOVEMENTS OF EASTERN AND RIO GRANDE WILD TURKEY FEMALES IN NORTHEASTERN

SOUTH DAKOTA ▪ C. P. Lehman, L. D. Flake, and A. P. Leif

THE BAT FAUNA OF SOUTHEASTERN SOUTH DAKOTA . J. E. Lane, C. L. Buck, and R. M. Brigham

FIRST REPORT OF THE NORTH DAKOTA RARE BIRD COMMITTEE ▪ D. Svingen and R. E. Martin

BREEDING CHRONOLOGY OF DABBLING DUCKS IN MINNEDOSA, MANITOBA ▪ A. M. Wells and H. H. Prince

A LIVE COLLECTION OF A PISTOLGRIP FROM NEBRASKA ▪ S. C. Schainost

NEW NESTING DATES FOR SOME BREEDING BIRDS IN NORTH DAKOTA ▪ …


University Of Nebraska-Lincoln School Of Natural Resources Review: Final Report, December 2003, Michael O'Neill, Phaedra Budy, Stephen Degloria, Ed Kanemasu, Jamie Robertson, Derrel Martin, Anne K. Vidaver, Tylr Naprstek, Donna Woudenberg Nov 2003

University Of Nebraska-Lincoln School Of Natural Resources Review: Final Report, December 2003, Michael O'Neill, Phaedra Budy, Stephen Degloria, Ed Kanemasu, Jamie Robertson, Derrel Martin, Anne K. Vidaver, Tylr Naprstek, Donna Woudenberg

School of Natural Resources: Documents and Reviews

In July 2003, the School of Natural Resource Sciences was merged with the Conservation and Survey Division and the Water Center Nebraska State Survey. This merger produced the School of Natural Resources (hereafter referred to as the "School") in its current form. The University of Nebraska-Lincoln requested a ten-year review of the School's programs and activities. The review was administered by the Cooperative State Research, Education and Extension Service (CSREES) in cooperation with the University of Nebraska-Lincoln's Institute of Agriculture and Natural Resources, the College of Agriculture, and the School.

The review document is divided into nine sections. The first …


Reconstructing The Genomic Architecture Of Mammalian Ancestors Using Multispecies Comparative Maps, William J. Murphy, Guillaume Bourque, Glenn Tesler, Pavel Pevzner, Stephen J. O'Brien Nov 2003

Reconstructing The Genomic Architecture Of Mammalian Ancestors Using Multispecies Comparative Maps, William J. Murphy, Guillaume Bourque, Glenn Tesler, Pavel Pevzner, Stephen J. O'Brien

Biology Faculty Articles

Rapidly developing comparative gene maps in selected mammal species are providing an opportunity to reconstruct the genomic architecture of mammalian ancestors and study rearrangements that transformed this ancestral genome into existing mammalian genomes. Here, the recently developed Multiple Genome Rearrangement (MGR) algorithm is applied to human, mouse, cat and cattle comparative maps (with 311-470 shared markers) to impute the ancestral mammalian genome. Reconstructed ancestors consist of 70-100 conserved segments shared across the genomes that have been exchanged by rearrangement events along the ordinal lineages leading to modern species genomes. Genomic distances between species, dominated by inversions (reversals) and translocations, are …


Creating A Geographical Information System For Freshwater Crabs And Fishes In Greece, Eugene G. Maurakis, Walter R.T. Witschey, Panos S. Economidis, Dimitra Bobori Oct 2003

Creating A Geographical Information System For Freshwater Crabs And Fishes In Greece, Eugene G. Maurakis, Walter R.T. Witschey, Panos S. Economidis, Dimitra Bobori

Virginia Journal of Science

A geographical information system (GIS) for freshwater crabs and fishes in Greece was created in response to the European Environmental Agency's (EEA) biodiversity initiative for European Union countries. A total of 1931 collections, made with seines, dipnets, and backpack electroshockers in 32 drainages of Greece, yielded 126 species of fishes and crabs in 2,359 data records including species, latitude, longitude, drainage, prefecture, and locality, 731 also include stream order, elevation, gradient, stream width and depth, pH, temperature, and distance to river mouth. Our GIS indicates current distributions of species, species rich and poor areas, anomalous species distributions, areas warranting further …


Csrees School Of Natural Resources Comprehensive Five-Year Review Sep 2003

Csrees School Of Natural Resources Comprehensive Five-Year Review

School of Natural Resources: Documents and Reviews

No abstract provided.