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

Ecology and Evolutionary Biology Commons

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

15,759 Full-Text Articles 25,730 Authors 2,590,420 Downloads 275 Institutions

All Articles in Ecology and Evolutionary Biology

Faceted Search

15,759 full-text articles. Page 1 of 501.

Radical Botany: Plants And Speculative Fiction [Table Of Contents], Natania Meeker, Antónia Szabari 2019 Fordham University

Radical Botany: Plants And Speculative Fiction [Table Of Contents], Natania Meeker, Antónia Szabari

Literature

No abstract provided.


The Response Of Utah Lake's Plant And Algal Community Structure To Cultural Eutrophication, Leighton R. King 2019 Utah State University

The Response Of Utah Lake's Plant And Algal Community Structure To Cultural Eutrophication, Leighton R. King

All Graduate Theses and Dissertations

Human activities have long had a negative impact on the water quality of freshwater lakes around the world. Utah Lake, located in north-central Utah, has been a subject of such impacts, as the lake experiences recurrent harmful algal blooms during the summer months. Lake warnings and closures have made the public increasingly aware of the ecological and economic impact of these blooms. The objectives of this study were to: 1) compare historical and present-day water quality and ecosystem conditions using environmental data contained in sediment cores, 2) identify whether, and when, Utah Lake transitioned from clearwater to turbid conditions, and ...


What Have Long-Term Field Studies Taught Us About Population Dynamics?, Beth A. Reinke, David A. W. Miller, Fredric J. Janzen 2019 Pennsylvania State University

What Have Long-Term Field Studies Taught Us About Population Dynamics?, Beth A. Reinke, David A. W. Miller, Fredric J. Janzen

Ecology, Evolution and Organismal Biology Publications

Long-term studies have been crucial to the advancement of population biology, especially our understanding of population dynamics. We argue that this progress arises from three key characteristics of long-term research. First, long-term data are necessary to observe the heterogeneity that drives most population processes. Second, long-term studies often inherently lead to novel insights. Finally, long-term field studies can serve as model systems for population biology, allowing for theory and methods to be tested under well-characterized conditions. We illustrate these ideas in three long-term field systems that have made outsized contributions to our understanding of population ecology, evolution, and conservation biology ...


Phylogenetic Comparative Methods And The Evolution Of Multivariate Phenotypes, Dean C. Adams, Michael L. Collyer 2019 Iowa State University

Phylogenetic Comparative Methods And The Evolution Of Multivariate Phenotypes, Dean C. Adams, Michael L. Collyer

Ecology, Evolution and Organismal Biology Publications

Evolutionary biology is multivariate, and advances in phylogenetic comparative methods for multivariate phenotypes have surged to accommodate this fact. Evolutionary trends in multivariate phenotypes are derived from distances and directions between species in a multivariate phenotype space. For these patterns to be interpretable, phenotypes should be characterized by traits in commensurate units and scale. Visualizing such trends, as is achieved with phylomorphospaces, should continue to play a prominent role in macroevolutionary analyses. Evaluating phylogenetic generalized least squares (PGLS) models (e.g., phylogenetic analysis of variance and regression) is valuable, but using parametric procedures is limited to only a few phenotypic ...


Bee And Butterfly Response To Floral Resources In Central Iowa Prairie Restorations, Chandler Dolan, Kathleen Madsen, Mark Myers, Ai Wen 2019 University of Northern Iowa

Bee And Butterfly Response To Floral Resources In Central Iowa Prairie Restorations, Chandler Dolan, Kathleen Madsen, Mark Myers, Ai Wen

Mark C. Myers

Over 90 percent of Iowa’s land is devoted to cultivated row crops and pasture, which has caused a decline in biodiversity and habitat for many bee and butterfly species. To restore lost ecosystems and conserve pollinator diversity, the USDA recently developed a new Conservation Reserve Program Pollinator Habitat conservation practice (CP-42). Since 2012, Iowa farmers have enrolled over 200,000 acres in this program with little evaluation of its effectiveness. In 2017, a team of students and faculty from the University of Northern Iowa and Tallgrass Prairie Center developed methods to evaluate vegetation and pollinator activity in CP-42 restoration ...


Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxi. Parabuthus (Buthidae) (Part Ii), With Description Of Five New Species From Somaliland And Ethiopia, František Kovařík, Graeme Lowe, Hassan S. A. Elmi, František Šťáhlavský 2019 Marshall University

Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxi. Parabuthus (Buthidae) (Part Ii), With Description Of Five New Species From Somaliland And Ethiopia, František Kovařík, Graeme Lowe, Hassan S. A. Elmi, František Šťáhlavský

Euscorpius

No abstract provided.


The Economic Impacts Of Blackbird (Icteridae) Damage To Sunflower In The Usa, Karina Ernst, Julie Elser, George Linz, Hans Kandel, Jason Holderieath, Samantha DeGroot, Steven Shwiff, Stephanie Shwiff 2019 USDA APHIS Wildlife Services

The Economic Impacts Of Blackbird (Icteridae) Damage To Sunflower In The Usa, Karina Ernst, Julie Elser, George Linz, Hans Kandel, Jason Holderieath, Samantha Degroot, Steven Shwiff, Stephanie Shwiff

Jason Holderieath

BACKGROUND: Blackbird (Icteridae) damage to ripening sunflower (Helianthus annuus L.) has been a persistent economic issue in the USA for the last five decades. To quantify losses, we surveyed blackbird damage from 2001 to 2013 (excluding 2004) to physiologically mature sunflower in eight states: North Dakota, South Dakota, Texas, Nebraska, Minnesota, Colorado, Kansas, and Vermont.

RESULTS:We pooled data gathered during the most recent 5 years (2009 to 2013) of the survey and found losses averaged $US2.5 million and $US11.3 million for confectionery and oilseed hybrids, respectively. Three states, North Dakota, South Dakota, and Nebraska, had sufficient acreage ...


Description Of The Adult Female Of Diplocentrus Lachua (Scorpiones: Scorpionidae: Diplocentrinae) From Northeastern Alta Verapaz, Guatemala, Rony E. Trujillo, Luis F. de Armas, Carlos A. Gaitán 2019 Marshall University

Description Of The Adult Female Of Diplocentrus Lachua (Scorpiones: Scorpionidae: Diplocentrinae) From Northeastern Alta Verapaz, Guatemala, Rony E. Trujillo, Luis F. De Armas, Carlos A. Gaitán

Euscorpius

The female of the scorpion Diplocentrus lachua Armas, Trujillo & Agreda, 2011 is herein described, on the basis of a single specimen collected at Parque Nacional Laguna Lachuá, Alta Verapaz Department, Guatemala, type locality for this species. An emended diagnosis is provided and the known distribution of all described Guatemalan Diplocentrus species is graphically presented.


Dental And Mandibular Anomalies In White-Tailed Deer (Odocoileus Virginianus) From Central Georgia, Patrick M. Powers, Alfred J. Mead 2019 Georgia College & State University

Dental And Mandibular Anomalies In White-Tailed Deer (Odocoileus Virginianus) From Central Georgia, Patrick M. Powers, Alfred J. Mead

Georgia Journal of Science

The frequency of dental and mandibular anomalies in free-ranging white-tailed deer in the southeastern United States is not well documented. Characteristic irregularities include supernumerary and missing teeth, malocclusion, root abscesses due to bacterial infections, and tooth or bone damage due to trauma. In the present study, we examined 778 white-tailed deer dentaries collected from the Piedmont National Wildlife Refuge in central Georgia. All dentaries were inspected for lesions, tooth irregularities, developmental anomalies, and other pathologies. Thirty-two dentaries (4.1%) displayed signs of dental or bone abnormalities. More abnormalities were associated with infection or injury (22/778, 2.8%) compared to ...


Beaver And Aspen : Synergy Among Keystone Species, Stephen Bennett, Nicolaas Bouwes, Paul C. Rogers 2019 Selected Works

Beaver And Aspen : Synergy Among Keystone Species, Stephen Bennett, Nicolaas Bouwes, Paul C. Rogers

Nicolaas Bouwes

In the West, climate change is likely to increase the frequency, intensity, and duration of drought. Restoration of soils and water storage capacity can help create resilient uplands and riverscapes (i.e., streams and the valley bottoms). Over the past two centuries, common land uses, the removal of beaver and wood, straightening of streams, and damage to riparian areas have created simplified, structurally starved, riverscapes. Degraded streams are very efficient at transporting water, sediment, and nutrients downstream. Aspen forests are also biological hotspots that have been degraded by past land uses such as overbrowsing ungulates, land clearing, fire suppression, and ...


An Agent-Based Modeling Approach For Predicting The Behavior Of Bighead Carp (Hypophthalmichthys Nobilis) Under The Influence Of Acoustic Deterrence, Joey Gaudy, Craig Garzella 2019 Valparaiso University

An Agent-Based Modeling Approach For Predicting The Behavior Of Bighead Carp (Hypophthalmichthys Nobilis) Under The Influence Of Acoustic Deterrence, Joey Gaudy, Craig Garzella

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Parameter Estimation Within An Sir Model Of Chestnut Blight In North America, Anita Davelos Baines, Hope B. Anderson, John S. McAlister, Robert F. Allen 2019 University of Wisconsin-La Crosse

Parameter Estimation Within An Sir Model Of Chestnut Blight In North America, Anita Davelos Baines, Hope B. Anderson, John S. Mcalister, Robert F. Allen

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


A Multi-Player Model Of Bower Marauding: Simulations Of Destruction, Julia Smith, Rachel B. Potter 2019 University of Chicago

A Multi-Player Model Of Bower Marauding: Simulations Of Destruction, Julia Smith, Rachel B. Potter

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Using Empirical And Theoretical Approaches To Control Outbreaks Of An Emerging Disease (Swimmer’S Itch) In The Midwest Of The U.S.A., Gregory J. Sandland, James Peirce 2019 University of Wisconsin - La Crosse

Using Empirical And Theoretical Approaches To Control Outbreaks Of An Emerging Disease (Swimmer’S Itch) In The Midwest Of The U.S.A., Gregory J. Sandland, James Peirce

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Mathematician's Perspective, Montana Ferita, Julie Fucarino, Alex Capaldi, Charlotte Beckford 2019 Westminster College

Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Mathematician's Perspective, Montana Ferita, Julie Fucarino, Alex Capaldi, Charlotte Beckford

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Engaging Undergraduates In Research In Mathematical Biology With Limited Resources, Timothy Comar 2019 Benedictine University

Engaging Undergraduates In Research In Mathematical Biology With Limited Resources, Timothy Comar

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Period Drift In A Neutrally Stable Stochastic Oscillator, Kevin Sanft 2019 Illinois State University

Period Drift In A Neutrally Stable Stochastic Oscillator, Kevin Sanft

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Biologist's Perspective, Rob Swanson, Alex Capaldi 2019 Valparaiso University

Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Biologist's Perspective, Rob Swanson, Alex Capaldi

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Analysis Of An Agent-Based Model For Integrated Pest Management With Periodic Control Strategies, Timothy Comar 2019 Benedictine University

Analysis Of An Agent-Based Model For Integrated Pest Management With Periodic Control Strategies, Timothy Comar

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Modeling Control Methods To Manage The Sylvatic Plague In Black-Tailed Prairie Dog Towns, David C. Elzinga, Shelby R. Stowe, Leland Russell 2019 University of Tennessee, Knoxville

Modeling Control Methods To Manage The Sylvatic Plague In Black-Tailed Prairie Dog Towns, David C. Elzinga, Shelby R. Stowe, Leland Russell

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Digital Commons powered by bepress