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Articles 1 - 30 of 129
Full-Text Articles in Biodiversity
The Status Of Fishes In The Missouri River, Nebraska: Shoal Chub (Macrhybopsis Hyostoma), Sturgeon Chub (M. Gelida), Sicklefin Chub (M. Meeki), Silver Chub (M. Storeriana), Flathead Chub (Platygobio Gracilis), Plains Minnow (Hybognathus Placitus), Western Silvery Minnow (H. Argyritis), And Brassy Minnow (H. Hankinsoni), Kirk D. Steffensen, Dane A. Shuman, Sam Stukel
The Status Of Fishes In The Missouri River, Nebraska: Shoal Chub (Macrhybopsis Hyostoma), Sturgeon Chub (M. Gelida), Sicklefin Chub (M. Meeki), Silver Chub (M. Storeriana), Flathead Chub (Platygobio Gracilis), Plains Minnow (Hybognathus Placitus), Western Silvery Minnow (H. Argyritis), And Brassy Minnow (H. Hankinsoni), Kirk D. Steffensen, Dane A. Shuman, Sam Stukel
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Throughout the past century, the Missouri River has been highly modified which has negatively affected the native fish community. Previous research quantified the reduction of several native Cyprinidae species and made several recommendations to aid in recovery. However, these recommendations were not implemented. Therefore, the objective of this paper is to assess the current population trends of eight native cyprinid species and develop the current management objectives. Over 335,000 fish were collected from the Missouri River along Nebraska’s eastern border with mini-fyke nets and otter trawls from 2003 to 2012. Target Cyprinidae species consisted of less than five percent (n …
The Status Of Fishes In The Missouri River, Nebraska: Sauger (Sander Canadensis), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
The Status Of Fishes In The Missouri River, Nebraska: Sauger (Sander Canadensis), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Early fisheries investigation of the Missouri River fish community indicated that Sauger were common throughout Nebraska, including all major Missouri River tributaries. However due to many factors, their current range is restricted to the Missouri River and the lower reaches of a few tributaries. Hesse (1994) recommended listing Sauger as a state endangered species but this recommendation was never implemented. Therefore, the objective of this paper is to reevaluate the current population status of Sauger in the Missouri River along Nebraska’s border. Over 2,100 Sauger have been captured from the Missouri River along Nebraska’s eastern border since 2003. Sauger were …
Differences In The Diversity Of Frogspecies Between Sierra Lloronaand El Valle, Panama, Kei Okabe Thurber
Differences In The Diversity Of Frogspecies Between Sierra Lloronaand El Valle, Panama, Kei Okabe Thurber
Independent Study Project (ISP) Collection
Panama is home to the greatest diversity of species in all of Central America. It is home to 174 species of frogs, 35 of which are endemic to Panama. Frogs are a vital part of many ecosystems. They maintain insect populations and act as food sources for larger predators. Their job of maintaining insect populations is essential to curbing the spread of diseases. Additionally, scientists have found chemical compounds in the skin of frogs that can be used to treat pain and prevent infections. The main threat to the majority of frogs is the deadly fungus Batrachochytrium dendrobatidis (Bd), or …
Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones
Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones
Independent Study Project (ISP) Collection
Deforestation of tropical forest for agricultural purposes threatens habitat loss of native species. The value of various agricultural landscapes in conserving avian populations is useful in determining diversity-conscious development plans. However, generalized results from regionalscale studies cannot be implemented to insular avian habitats. This study serves as the only current avian diversity study of the Chiriquí Highlands. To determine the effect of agricultural land use within an insular avian habitat, I compared avian diversity and site population similarity in Guadalupe, Chiriquí Highlands of the Talamanca Range, Panama. I hypothesized that avian diversity is greatest at forest edge followed by forest …
Comparing Disease Prevalence In Hard Corals At Four Different Reefs Near The Island Of Narganá In The Guna Yala Comarca Of Panamá, Connor Hinton
Comparing Disease Prevalence In Hard Corals At Four Different Reefs Near The Island Of Narganá In The Guna Yala Comarca Of Panamá, Connor Hinton
Independent Study Project (ISP) Collection
Coral reefs harbor much of the world’s known marine biodiversity. For a number of reasons, coral reefs are becoming increasingly threatened. Large portions of the world’s reefs have already been lost, and the number of degrading reefs is constantly on the rise. One cause for the destruction of coral reefs are coral diseases, ultimately causing coral mortality. With the death of corals, a key species is lost, endangering the entire reef ecosystem. Documenting the presence of such diseases could be useful in assessing current reef health and ameliorating the growing threat of coral diseases. In this project, 18 40m2 belt …
Evaluating The Progress Of A Mangrove Reforestation Project On Isla Galeta, Colon, Abigail Hope Outterson
Evaluating The Progress Of A Mangrove Reforestation Project On Isla Galeta, Colon, Abigail Hope Outterson
Independent Study Project (ISP) Collection
Just off the Atlantic coast of Panama, a dynamic and self-renewing ecosystem takes advantage of the tropical climate and swampy conditions. Guarding Punta Galeta’s shores since before it was a U.S. navy base in the 1930’s, mangroves that have persisted here for centuries now draw scientists and tourists alike from all over the world to the Smithsonian Tropical Research Center. Once viewed as unproductive, distasteful environments, mangroves are increasingly recognized worldwide as critical habitat for endangered and commercially significant species, as well as for their ecological and aesthetic value. Uniquely adapted to survive in saline environments, mangroves combine methods of …
Biogeochemical Hotspots In Forested Landscapes: The Role Of Vernal Pools In Denitrification And Organic Matter, Krista A. Capps, Regina L. Rancatti, Nathan Tomczyk, Aram J K Calhoun, Malcolm L. Hunter Jr.
Biogeochemical Hotspots In Forested Landscapes: The Role Of Vernal Pools In Denitrification And Organic Matter, Krista A. Capps, Regina L. Rancatti, Nathan Tomczyk, Aram J K Calhoun, Malcolm L. Hunter Jr.
Publications
Quantifying spatial and temporal heterogeneity in ecosystem processes presents a challenge for conserving ecosystem function across landscapes. In particular, many ecosystems contain small features that play larger roles in ecosystem processes than their size would indicate; thus, they may represent ‘‘hotspots’’ of activity relative to their surroundings. Biogeochemical hotspots are characterized as small features within a landscape that show comparatively high chemical reaction rates. In northeastern forests in North America, vernal pools are abundant, small features that typically fill in spring with snow melt and precipitation and dry by the end of summer. Ephemeral flooding alters soil moisture and the …
Traversing Swanton Road, 17th Ed., James A. West
Traversing Swanton Road, 17th Ed., James A. West
Academic, Government & Associated Organizational Research Resources
Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …
The Cedar Point Experience, 40 Years Of Field Based, Experiential Learning, Jon Garbisch
The Cedar Point Experience, 40 Years Of Field Based, Experiential Learning, Jon Garbisch
DBER Speaker Series
The Cedar Point Experience was born in the summer of 1975. At the urging of several biology faculty UNL leased the Goodall Cedar Point Girlscout Camp and offered a broad range of field based courses exploiting the local environment as their classroom. These instructors also had a strong interest in the area as a base for their own research. Today the UNL Cedar Point Biological Station with a few additional buildings can support around 100 people with full service dining, housing, classroom and lab space.
The instructional model has remained unchanged for the past 40 years. Field based or place …
Restoration Of Bison (Bison Bison) To Agate Fossil Beds National Monument, A Feasibility Study, Daniel S. Licht
Restoration Of Bison (Bison Bison) To Agate Fossil Beds National Monument, A Feasibility Study, Daniel S. Licht
United States National Park Service: Publications
Executive Summary
Agate Fossil Beds National Monument is a 3,057-acre park located in western Nebraska. The unit is comprised of northern mixed-grass prairie vegetation, typical of the Northern Great Plains. Weather, fire, and grazing are generally considered to be the ecological drivers of prairie ecosystems and critical for prairie health. However, grazing has essentially been absent since the 1960s. In 2014, a Department of the Interior report explicitly listed the park as a high priority for bison restoration. This report evaluates the feasibility, management options, benefits, and challenges of restoring bison to Agate Fossil Beds National Monument.
A potential bison …
Documentation Of The Black-Footed Ferret, Mustela Nigripes On The Standing Rock Indian Reservation, Mobridge, South Dakota, Michael P. Gutzmer, Jeffrey C. Kelly
Documentation Of The Black-Footed Ferret, Mustela Nigripes On The Standing Rock Indian Reservation, Mobridge, South Dakota, Michael P. Gutzmer, Jeffrey C. Kelly
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Since 1991, 19 specific black-footed ferret reintroduction projects have been conducted across 8 States, Canada, and Mexico. All five of the first ferret reintroductions (from 1991 to 1996) continue to be occupied by ferrets. The photographs of October 31 and November 1 are the first unequivocal documentation of black-footed ferrets on the Standing Rock Indian Reservation. Ferrets observed on Standing Rock may be dispersals from the nearby Cheyenne River Sioux Indian Reservation to the south. The nearest re-introduction site for ferrets is approximately 20 miles away, in Whitehorse, South Dakota, and the observation of ferrets on Standing Rock could document …
Revisiting The Vanishing Refuge Model Of Diversification, Robert Damasceno, Maria L. Strangas, Ana C. Carnaval, Miguel T. Rodrigues, Craig Moritz
Revisiting The Vanishing Refuge Model Of Diversification, Robert Damasceno, Maria L. Strangas, Ana C. Carnaval, Miguel T. Rodrigues, Craig Moritz
Publications and Research
Much of the debate around speciation and historical biogeography has focused on the role of stabilizing selection on the physiological (abiotic) niche, emphasizing how isolation and vicariance, when associated with niche conservatism, may drive tropical speciation. Yet, recent re-emphasis on the ecological dimensions of speciation points to a more prominent role of divergent selection in driving genetic, phenotypic, and niche divergence. The vanishing refuge model (VRM), first described by Vanzolini and Williams (1981), describes a process of diversification through climate-driven habitat fragmentation and exposure to new environments, integrating both vicariance and divergent selection. This model suggests that dynamic climates and …
The Status Of Fishes In The Missouri River, Nebraska: Lake Sturgeon (Acipenser Fulvescens), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
The Status Of Fishes In The Missouri River, Nebraska: Lake Sturgeon (Acipenser Fulvescens), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Lake Sturgeon (Acipenser fulvescens) occurrences in the Missouri River along Nebraska’s eastern border are historically sporadic and rare. Presently, the wild Lake Sturgeon population in this river reach may be extirpated. A Recovery Program initiated by the Missouri Department of Conservation (MDC) has stocked almost 150,000 hatchery-reared Lake Sturgeon into the lower Missouri River at several sites in Missouri. As a result, the number of Lake Sturgeon collected has increased. Since monitoring began in 2003, no Lake Sturgeon have been collected above Gavins Point Dam while 40 fish were collected downstream of Gavins Point Dam. The majority of …
Sensitivity And Tolerance Of Riparian Arthropod Communities To Altered Water Resources Along A Drying River, Kevin E. Mccluney, John L. Sabo
Sensitivity And Tolerance Of Riparian Arthropod Communities To Altered Water Resources Along A Drying River, Kevin E. Mccluney, John L. Sabo
Biological Sciences Faculty Publications
Rivers around the world are drying with increasing frequency, but little is known about effects on terrestrial animal communities. Previous research along the San Pedro River in southeastern AZ, USA, suggests that changes in the availability of water resources associated with river drying lead to changes in predator abundance, community composition, diversity, and abundance of particular taxa of arthropods, but these observations have not yet been tested manipulatively.
Genetics Of The Pig Tapeworm In Madagascar Reveal A History Of Human Dispersal And Colonization, Tetsuya Yanagida, Jean-François Carod, Yasuhito Sako, Minoru Nakao, Eric P. Hoberg, Akira Ito
Genetics Of The Pig Tapeworm In Madagascar Reveal A History Of Human Dispersal And Colonization, Tetsuya Yanagida, Jean-François Carod, Yasuhito Sako, Minoru Nakao, Eric P. Hoberg, Akira Ito
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
An intricate history of human dispersal and geographic colonization has strongly affected the distribution of human pathogens. The pig tapeworm Taenia solium occurs throughout the world as the causative agent of cysticercosis, one of the most serious neglected tropical diseases. Discrete genetic lineages of T. solium in Asia and Africa/Latin America are geographically disjunct; only in Madagascar are they sympatric. Linguistic, archaeological and genetic evidence has indicated that the people in Madagascar have mixed ancestry from Island Southeast Asia and East Africa. Hence, anthropogenic introduction of the tapeworm from Southeast Asia and Africa had been postulated. This study shows that …
Silence Is The Loudest Sound, Emma Christian
Silence Is The Loudest Sound, Emma Christian
Honors College
Rhinoceros poaching is an act of killing a rhinoceros in order to take its horn, which is then used for human consumption or for cultural traditions. Both the Asian and the African rhinoceros are targets because of the demand from China, Vietnam, Yemen, and other countries around the world. Traditional Chinese Medicine practice is the main demand for rhinoceros horn and this demand in rhinoceros horn has caused an increase in the black market. Conservation of the rhinoceros is decreasing primarily because the price of rhinoceros horn is more than double the average household income in South Africa, thus making …
The Status Of Fishes In The Missouri River, Nebraska: Pallid Sturgeon (Scaphirhynchus Albus), Kirk D. Steffensen, Dane A. Shuman, Robert A. Klumb, Sam Stukel
The Status Of Fishes In The Missouri River, Nebraska: Pallid Sturgeon (Scaphirhynchus Albus), Kirk D. Steffensen, Dane A. Shuman, Robert A. Klumb, Sam Stukel
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Anthropogenic alterations to the Missouri River have placed the Pallid Sturgeon (Scaphirhynchus albus) population in jeopardy and contributed to their listing as an endangered species. Pallid sturgeon were always less common than the sympatric Shovelnose Sturgeon (S. platorynchus); however, Pallid Sturgeon seemed to be more affected by river alterations as the river sturgeon ratio has become more skewed towards Shovelnose Sturgeon. Shortly after listing, population augmentation with hatchery produced Pallid Sturgeon began to supplement the diminishing wild population. Therefore, the objective of this study was to present the current population status of the Pallid Sturgeon in …
The Status Of Fishes In The Missouri River, Nebraska: Shovelnose Sturgeon (Scaphirhynchus Platorynchus), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
The Status Of Fishes In The Missouri River, Nebraska: Shovelnose Sturgeon (Scaphirhynchus Platorynchus), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
The Shovelnose Sturgeon Scaphirhynchus platorynchus remains the most abundant riverine sturgeon species in North American despite the anthropogenic modifications that have occurred throughout their historic range; however, their populations have declined throughout Nebraska since the construction of Fort Randall and Gavins Point Dams. Therefore, the objective of this study was to present the current status of Shovelnose Sturgeon in the Missouri River along Nebraska’s border. Data was acquired from 2003 to 2012 from all reaches of the Missouri River along Nebraska’s eastern border. Catch rates of Shovelnose Sturgeon increased in a downstream trend and were highest in the reach below …
Estimating Migration Rates Between Populations Of Zostera Marina In The San Francisco Bay, Elizabeth S. Gutierrez
Estimating Migration Rates Between Populations Of Zostera Marina In The San Francisco Bay, Elizabeth S. Gutierrez
STAR Program Research Presentations
Eelgrass (Zostera marina) is a highly clonal marine angiosperm that can also reproduce sexually through flowering and seed formation. In a previous study, Fst values from six microsatellite loci suggested that a perennial San Francisco Bay subpopulation at Point Molate (Richmond, California) was able to recover from a drastic 2006 die-off through seed recruitment from neighboring eelgrass subpopulations, changing its reproductive strategy from clonal to sexual. Although Fst measures continue to be widely used in population genetics, the assumptions under which they operate are not always appropriate given certain circumstances, such small population sizes and/or asymmetrical migration rates. Our summer …
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Nora Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Natural Infections Of Tetrathyridia Of Mesocestoides Species In Deer Mice, Peromyscus Maniculatus, From New Mexico, John E. Ubelaker, Nora Abdullah, Aya Mouhaffel, Rashmi Ananadampillair, Caitlyn Emigh, Scott Lyell Gardner
Papers in Parasitology
At Southern Methodist University campus about 6 miles south of Taos, New Mexico, we recovered tetrathyridia of Mesocestoides in five Peromyscus maniculatus in the summers of 2008 (3 of 129, 0.023%), 2009 (0 of 98, 0%), 2010 (1 of 112, 0.008%), 2011 (0 of 88, 0%), and 2012 (1 of 86, 0.011%). Tetrathyridia from the body cavity of one of the five infected mice were injected into the peritoneal cavity of laboratory white mice, Mus musculus. Our later examination of the laboratory mice revealed heavy infections of tetrathyridia continuing to reproduce asexually. Here we provide important new information on …
Persistence And Stability Of Eastern Afromontane Forests: Evidence From Brevicipitid Frogs, Simon P. Loader, F. Sara Ceccarelli, Michele Menegon, Kim M. Howell, Roman Kassahun, Abebe A. Mengistu, Samy A. Saber, Fikirte Gebresenbet, Rafael O. De Sá, Et Al.
Persistence And Stability Of Eastern Afromontane Forests: Evidence From Brevicipitid Frogs, Simon P. Loader, F. Sara Ceccarelli, Michele Menegon, Kim M. Howell, Roman Kassahun, Abebe A. Mengistu, Samy A. Saber, Fikirte Gebresenbet, Rafael O. De Sá, Et Al.
Biology Faculty Publications
Aim: The persistence and stability of habitats through time are considered predictors of high levels of biodiversity in some environments. Long-term habitat persistence and stability may explain the species-rich, endemic forest fauna and flora of the Eastern Afromontane Biodiversity Region (EABR). Using comple- mentary phylogenetic and biogeographical approaches, we examine evolution- ary patterns in EAR brevicipitid frogs. Using these data, we test whether brevicipitid history reflects patterns of long-term forest persistence and/or sta bility across the EABR.
Location: East Africa.
Methods: A dated phylogeny for brevicipitids was constructed using two nuclear and three mitochondrial markers. Alternative diversification modes were used …
A Threat To New Zealand's Tuatara Heats Up, Kristine L. Grayson, Nicola J. Mitchell, Nicola J. Nelson
A Threat To New Zealand's Tuatara Heats Up, Kristine L. Grayson, Nicola J. Mitchell, Nicola J. Nelson
Biology Faculty Publications
No matter how many times we head to one of New Zealand's offshore islands, the feelings are always a mix of sheer awe at the beauty and biodiversity preserved in these special refuges and lingering nerves. Did we remember all the gear? Do we have enough food and water in case we get stuck? Can the helicopter land on the side of a cliff in these winds? These epic journeys are in pursuit of a lone remnant of the reptile evolutionary tree, with a unique ecology that has big implications under climate change.
Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman
Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman
Paul Johnsgard Collection
This remarkable collection of ornithological specimens is a gift of Everett C. Madson, M.D., a graduate of the University of Nebraska-Lincoln, to the University of Nebraska State Museum in honor of Paul Johnsgard, Ph.D., Professor Emeritus of the School of Biological Sciences.
Contents:
Foreword
Introduction
Biography - Paul A. Johnsgard
Biography - Everett C. Madson
Species Profiles and Photographs
Tinamous (Order Tinamiformes, Family Tinamidae)
Spotted Tinamou (Nothura maculosa)
Waterfowl (Order Anseriformes)
Ducks, Geese and Swans (Family Anatidae)
Whistling Ducks (Tribe Dendrocygnini)
White-faced Whistling Duck (Dendrocygna vidu
Geese and Swans (Tribe Anserini)
Black Swan (Cygnus atratus).
Tundra [Whistling] Swan (Cygnus columbianus) …
Range Maps For The Terrestrial Natural Communities Of Nebraska, Steven B. Rolfsmeier, Gerry Steinauer, Rachel Simpson
Range Maps For The Terrestrial Natural Communities Of Nebraska, Steven B. Rolfsmeier, Gerry Steinauer, Rachel Simpson
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This document includes range maps for the 83 terrestrial natural (plant) communities described in Terrestrial Ecological Systems and Natural Communities of Nebraska (Version IV - March 9, 2010) by Rolfsmeier and Steinauer 2010. Each map includes the known range and potential range for individual community types. The known range includes areas where a community has been documented and areas where it has not been documented but thought very likely to occur. The potential range includes areas where the community has not been documented but is thought to have some potential to occur. The maps should be considered approximations of the …
Annotated Features Of Domestic Cat – Felis Catus Genome, Gaik Tamazian, Serguei Simonov, Pavel Dobrynin, Alexey Makunin, Anton Logachev, Aleksey Komissarov, Andrey Shevchenko, Vladimir Brukhin, Nikolay Cherkasov, Anton Svitin, Klaus-Peter Koepfli, Joan Pontius, Carlos A. Driscoll, Kevin Blackistone, Cristina Barr, David Goldman, Agostinho Antunes, Javier Quilez, Belen Lorente-Galdos, Can Alkan, Tomas Marques-Bonet, Marilyn Menotti-Raymond, Victor A. David, Kristina Narfstrom, Stephen J. O'Brien
Annotated Features Of Domestic Cat – Felis Catus Genome, Gaik Tamazian, Serguei Simonov, Pavel Dobrynin, Alexey Makunin, Anton Logachev, Aleksey Komissarov, Andrey Shevchenko, Vladimir Brukhin, Nikolay Cherkasov, Anton Svitin, Klaus-Peter Koepfli, Joan Pontius, Carlos A. Driscoll, Kevin Blackistone, Cristina Barr, David Goldman, Agostinho Antunes, Javier Quilez, Belen Lorente-Galdos, Can Alkan, Tomas Marques-Bonet, Marilyn Menotti-Raymond, Victor A. David, Kristina Narfstrom, Stephen J. O'Brien
Biology Faculty Articles
Background: Domestic cats enjoy an extensive veterinary medical surveillance which has described nearly 250 genetic diseases analogous to human disorders. Feline infectious agents offer powerful natural models of deadly human diseases, which include feline immunodeficiency virus, feline sarcoma virus and feline leukemia virus. A rich veterinary literature of feline disease pathogenesis and the demonstration of a highly conserved ancestral mammal genome organization make the cat genome annotation a highly informative resource that facilitates multifaceted research endeavors.
Findings: Here we report a preliminary annotation of the whole genome sequence of Cinnamon, a domestic cat living in Columbia (MO, USA), …
Are Local Filters Blind To Provenance? Ant Seed Predation Suppresses Exotic Plants More Than Natives, Dean Pearson, Nadia S. Icasatti, Jose L. Hierro, Benjamin J. Bird
Are Local Filters Blind To Provenance? Ant Seed Predation Suppresses Exotic Plants More Than Natives, Dean Pearson, Nadia S. Icasatti, Jose L. Hierro, Benjamin J. Bird
Biological Sciences Faculty Publications
The question of whether species’ origins influence invasion outcomes has been a point of substantial debate in invasion ecology. Theoretically, colonization outcomes can be predicted based on how species’ traits interact with community filters, a process presumably blind to species’ origins. Yet, exotic plant introductions commonly result in monospecific plant densities not commonly seen in native assemblages, suggesting that exotic species may respond to community filters differently than natives. Here, we tested whether exotic and native species differed in their responses to a local community filter by examining how ant seed predation affected recruitment of eighteen native and exotic plant …
Habitat Assessment For Nebraska's At-Risk Species: Descriptions Of Species Models Used In The Chat (Crucial Habitat Assessment Tool) Species Of Concern Data Layer, Rachel Simpson, Rick Schneider
Habitat Assessment For Nebraska's At-Risk Species: Descriptions Of Species Models Used In The Chat (Crucial Habitat Assessment Tool) Species Of Concern Data Layer, Rachel Simpson, Rick Schneider
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
As part of an effort across the western U.S. states led by the Western Governors’ Association, the Nebraska Game and Parks Commission synthesized information related to habitat for at-risk native species and natural plant communities. The result, submitted to the WGA in the fall of 2013, is coarse-scale, landscape-level information that can be used by anyone for land-use planning. The product of this west-wide collaboration is called the Crucial Habitat Assessment Tool (CHAT). The information, provided through an online GIS-mapping tool, is non-regulatory and gives project planners and the general public access to credible scientific data on a broad scale …
Introduction—23rd North American Prairie Conference, Dr. Douglas J. Cattani, Dr. Nicola Koper, Dr. Pamela Rutherford, Dr. Richard K. Baydack
Introduction—23rd North American Prairie Conference, Dr. Douglas J. Cattani, Dr. Nicola Koper, Dr. Pamela Rutherford, Dr. Richard K. Baydack
The Prairie Naturalist
Building upon the tradition started in Illinois by Peter Schramm in 1970, with the first conference on prairies and prairie restoration, the North American Prairie Conference (NAPC) has developed a tradition of excellence in native prairie research, conservation, education and restoration of one of the worlds’ most productive, yet most endangered, ecosystems. It has spawned great interest, enthusiasm and efforts to better understand, appreciate, manage and conserve this vital part of North America’s natural and cultural history.
In early August 2012, the University of Manitoba in Winnipeg hosted the 23rd NAPC. The theme of the 2012 conference was “Celebrating Our …
Prairie Restoration: Bridging The Past And The Future, Daryl D. Smith
Prairie Restoration: Bridging The Past And The Future, Daryl D. Smith
The Prairie Naturalist
Tallgrass prairie once dominated most of mid-continent North America. Conversion of this prairie to cropland was rapid and extensive. Today, it is the most decimated ecosystem in North America with less than two percent remaining. Prairie reconstruction began at the University of Wisconsin Arboretum in the 1930s. Thirty years later, exemplary initiatives by a group of highly motivated restorationists in Illinois and Iowa became a part of the legacy of restoration ecology. Their work generated widespread public interest in prairie restoration and initiated the ongoing biennial North American Prairie Conference. Since then, practitioners have made significant advances in reconstruction and …
Notes: Oriental Bittersweet In Grasslands Near Eastern Bluebird Nest Boxes, Neal D. Mundahl
Notes: Oriental Bittersweet In Grasslands Near Eastern Bluebird Nest Boxes, Neal D. Mundahl
The Prairie Naturalist
Oriental bittersweet (Celastrus orbiculatus Thunb.; hereafter OB) is an invasive, woody vine that has been expanding its range westward in North America since its introduction from East Asia in the mid-1700s for horticultural purposes (Albright et al. 2009, United States Department of Agriculture [USDA] 2012). Although typically a woodland problem in the United States (McNab and Meeker 1987), OB can invade grassland habitats (Fike and Niering 1999), likely sprouting from seeds dropped by birds and mammals (McNab and Meeker 1987, Greenberg et al. 2001, Sarver et al. 2008) and often developing into large, shrub-like tangles of intertwining stems (Fike …