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Articles 1 - 30 of 169
Full-Text Articles in Population Biology
Flight Of The Freshwater Fish, Michael H. Wilson
Flight Of The Freshwater Fish, Michael H. Wilson
Capstones
Michael H. Wilson
Capstone Abstract
December 27, 2016
Flight of the Freshwater Fish
The Hudson River provides for millions of people as a path for commercial and private transportation, a source of food and energy, and perhaps most importantly for many living in the tri-state area as a destination for recreation and relaxation. The most overlooked feature of the river is how the wildlife shows clear signs of a changing climate and rapid environmental response to the impacts of global warming on the river.
Entire populations of fish species in the lower Hudson have been forced to leave the river …
An Analysis Of Morphometric Differentiation In Lake And River Populations Of The Emerald Shiner, Notropis Atherinoides, John J.V. Lang
An Analysis Of Morphometric Differentiation In Lake And River Populations Of The Emerald Shiner, Notropis Atherinoides, John J.V. Lang
Biology Theses
Understanding mechanisms that account for phenotypic variation has been of interest to biologists since the advent of Darwin’s theory of evolution by natural selection. It is now understood that adaptive divergence is a key driving force of intraspecific differentiation. Further, differences in habitat (e.g., flow regime, prey regime) have been shown to drive adaptive divergence in fish. For instance, fish inhabiting faster flowing water generally exhibit more fusiform bodies than their lake counterparts. Similarly, the partitioning of benthic and pelagic morphs generally results in smaller heads with the latter. This study used geometric shape analysis to assess morphological differences between …
Ecology Of Sceloporus Consobrinus Populations In Two Thermally Different Habitats, Alyssa N. Bangs
Ecology Of Sceloporus Consobrinus Populations In Two Thermally Different Habitats, Alyssa N. Bangs
Theses and Dissertations from 2016
Life history traits in ectotherms are tied to environmental temperature, and many species exhibit morphological and behavioral differences in thermally different habitats. Although these differences are generally attributed to differences in thermal regimes between habitats, most prior research on this topic has been performed across latitudinal or altitudinal gradients. Consequently, I wanted to determine if differences in morphology and behavior are also present among populations of Sceloporus consobrinus that inhabit thermally different habitats at the same latitude and elevation. In this study, I chose sites that fit one of two habitat types: warmer open rocky habitat and cooler, more vegetated …
Distribution, Abundance, And Migration Timing Of Greater And Lesser Sandhill Cranes Wintering In The Sacramento-San Joaquin River Delta Region Of California, Gary L. Ivey, Bruce D. Dugger, Caroline P. Herziger, Michael L. Casazza, Joseph P. Fleskes
Distribution, Abundance, And Migration Timing Of Greater And Lesser Sandhill Cranes Wintering In The Sacramento-San Joaquin River Delta Region Of California, Gary L. Ivey, Bruce D. Dugger, Caroline P. Herziger, Michael L. Casazza, Joseph P. Fleskes
Proceedings of the North American Crane Workshop
The Sacramento-San Joaquin River Delta region of California (hereafter, Delta region) is an important wintering region for the Central Valley Population of greater sandhill cranes (Grus canadensis tabida) and lesser sandhill cranes (G. c. canadensis), but basic information about the ecology of these birds is lacking to design a biologically sound conservation strategy. During the winters of 2007-08 and 2008-09, we conducted roost counts, roadside surveys, aerial surveys, and tracked radio-marked birds to define the geographic area used by sandhill cranes in the Delta region, document migration chronology, and estimate subspecies-specific abundance. Radio-marked sandhill cranes arrived in our study area …
Kin Selection And Its Discontents, David C. Queller
Kin Selection And Its Discontents, David C. Queller
Biology Faculty Publications & Presentations
Kin selection is a core aspect of social evolution theory, but a small number of critics have recently challenged it. Here I address these criticisms and show that kin selection remains an important explanation for much (though not all) social evolution. I show how many of the criticisms rest on historical idiosyncrasies of the way the field happened to develop, rather than on the real logic and evidence.
Evolution In Light Of Mitonuclear Landscapes: An Examination Of Mitochondrial Replacement In Killifish (Fundulus Spp.), Stephen D. Flanagan
Evolution In Light Of Mitonuclear Landscapes: An Examination Of Mitochondrial Replacement In Killifish (Fundulus Spp.), Stephen D. Flanagan
Dissertations
The mitochondria are responsible for the bulk of energy production in eukaryotes. They possess their own genome that works in conjunction with the nuclear genome to accomplish the extraordinarily important task of energy conversion. When species hybridize there will be a mismatch in evolutionary histories between these two genomes. The deleterious interactions of these genomes have been studied in great detail (i.e. hybrid breakdown). However, little work has been conducted to understand the population genetic, and morphological consequences of wide-ranging replacement. The Fundulus notatus complex is comprised of 3 species: F. notatus, F. olivaceus, and F. euryzonus. …
Diversity And Impacts Of Mining On The Non-Volant Small Mammal Communities Of Two Vegetation Types In The Brazilian Amazon, Natália Carneiro Ardente, Átilla Colombo Ferreguetti, Donald Gettinger, Pricila Leal, Ana Cristina Mendes-Oliveira, Fernanda Martins-Hatano, Helena Godoy Bergallo
Diversity And Impacts Of Mining On The Non-Volant Small Mammal Communities Of Two Vegetation Types In The Brazilian Amazon, Natália Carneiro Ardente, Átilla Colombo Ferreguetti, Donald Gettinger, Pricila Leal, Ana Cristina Mendes-Oliveira, Fernanda Martins-Hatano, Helena Godoy Bergallo
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
The CarajaÂs National Forest contains some of the largest iron ore deposits in the world. The majority of the minerals are found below a plant community known as Savana Metalo fila, or ªCangaº, which represents only 3% of the landscape within the CarajaÂs National Forest (CNF). The aim of our study was to understand the diversity of community of non-volant small mammals in the two predominant vegetation types: Ombrophilous Forest and Canga, and to examine how mining impacts these communities. Sampling was conducted from January 2010 to August 2011 in 11 sampling sites divided by the total area of Canga …
First Occurrence Of The Invasive Hydrozoan Gonionemus Vertens A. Agassiz, 1862 (Cnidaria: Hydrozoa) In New Jersey, Usa, John J. Gaynor, Paul A.X. Bologna, Dena J. Restaino, Christie Barry
First Occurrence Of The Invasive Hydrozoan Gonionemus Vertens A. Agassiz, 1862 (Cnidaria: Hydrozoa) In New Jersey, Usa, John J. Gaynor, Paul A.X. Bologna, Dena J. Restaino, Christie Barry
Department of Biology Faculty Scholarship and Creative Works
Gonionemus vertens A. Agassiz, 1862 is a small hydrozoan native to the Pacific Ocean. It has become established in the northern and southern Atlantic Ocean as well as the Mediterranean Sea. We report on the first occurrence of this species in estuaries in New Jersey, USA,and confirm species identification through molecular sequence analysis. Given the large number of individuals collected, we contend that this is a successful invasion into this region with established polyps. The remaining question is the vector and source of these newly established populations.
Improving Conservation Efforts Through A Better Understanding Of Forest Elephant Ecology, The Impacts Of Threats On Elephants And Freshwater Fisheries In Northern Congo, Roger Patrick Boundja
Improving Conservation Efforts Through A Better Understanding Of Forest Elephant Ecology, The Impacts Of Threats On Elephants And Freshwater Fisheries In Northern Congo, Roger Patrick Boundja
Doctoral Dissertations
IMPROVING CONSERVATION EFFORTS THROUGH A BETTER UNDERSTANDING OF FOREST ELEPHANT ECOLOGY, THE IMPACTS OF THREATS ON ELEPHANTS AND FRESHWATER FISHERIES IN NORTHERN SEPTEMBER 2016 ROGER PATRICK BOUNDJA, B.Sc. FORESTRY, MARIEN NGOUABI UNIVERSITY, BRAZZAVILLE MSc. UNIVERSITY OF CAPE TOWN PhD. UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor Curtice R. Griffin Catch data, including fish numbers, length-weight were collected during a multi-mesh Gillnet fisheries-independent survey in 2007-2008, and fisheries-dependent mixed gear surveys in 2009-2010 and 2015 across 400km stretch of the Sangha River located in the Sangha Tri-National. Overall, very high species richness (Chao 2 mean=250, SD=16.15) and diversity index (Simpson Inverse …
Distribution And Population Dynamics Of Ungulates In The Mongolian Gobi, Buuveibaatar Bayarbaatar
Distribution And Population Dynamics Of Ungulates In The Mongolian Gobi, Buuveibaatar Bayarbaatar
Doctoral Dissertations
The Mongolian Gobi is one of the most spectacular and important regions in Central Asia, comprising the largest area of intact grassland in the world. In recent years, a growing human population, expanding exploitation of natural resources, and the development of infrastructure in the region place increasing pressure on these species and their habitats. This dissertation has focused on three species of ungulates such as Mongolian saiga (Saiga tatarica mongolica) in western Mongolia, and Asiatic wild ass (Equus hemionus), and goitered gazelle (Gazella subgutturosa) in Southern Gobi. The study on endangered saiga antelope in …
Evaluating Resistance Surfaces For Modeling Wildlife Movement And Connectivity, Katherine Zeller
Evaluating Resistance Surfaces For Modeling Wildlife Movement And Connectivity, Katherine Zeller
Doctoral Dissertations
The continued growth of human populations and associated development in many areas of the world is causing persistent fragmentation of natural habitats. In response, wildlife corridors are often promoted as essential for the conservation of wildlife species. Wildlife corridors allow for the movement of individuals between habitat patches and confer many benefits including the maintenance of metapopulations and metapopulation dynamics, the maintenance of seasonal migratory routes, genetic exchange, and the potential for individuals and populations to shift their ranges in response to climate change. Wildlife corridors are modeled across a resistance-to-movement surface where resistance represents the willingness of an organism …
Ecological Consequences Of Lost Anadromous Forage Fish In Freshwater Ecosystems, Steven R. Mattocks
Ecological Consequences Of Lost Anadromous Forage Fish In Freshwater Ecosystems, Steven R. Mattocks
Masters Theses
Beginning in the early 1600s, dam construction in New England obstructed anadromous fish access to spawning grounds during migration. As a result, anadromous forage fish populations have declined, which has impacted freshwater, marine, and terrestrial ecosystems. To determine the impacts of dams on anadromous forage fish and freshwater ecosystems, I used historical and current data to estimate population changes in alewives (Alosa pseudoharengus) from 1600-1900. A significant reduction in spawning habitat occurred in New England as a result of 1,642 dams constructed between 1600 and 1900, resulting in 14.8% and 16.6% lake and stream habitat remaining by 1900, …
Policy On The Application Of Fish Size Limits In Western Australia, Department Of Fisheries
Policy On The Application Of Fish Size Limits In Western Australia, Department Of Fisheries
Fisheries management papers
No abstract provided.
Monk Parakeets, Michael L. Avery, James R. Lindsay
Monk Parakeets, Michael L. Avery, James R. Lindsay
Wildlife Damage Management Technical Series
Since their introduction to the United States in the 1960s, monk parakeets (Myiopsitta monachus) have thrived (Figure 1). Until recently, annual Christmas Bird Count data have shown the population to be increasing exponentially. In the U.S., monk parakeets are an urban and suburban species with few natural predators, diseases or other factors limiting their population growth. They exploit backyard bird feeders and non-native ornamental plants for food. Monk parakeets often construct nests on man-made structures, such as electric utility facilities and cell phone towers. Because the birds build and maintain nests throughout the year, management of parakeet populations …
Integrated Fisheries Management Resource Report Pearl Oyster (Pinctada Maxima) Resource, Department Of Fisheries
Integrated Fisheries Management Resource Report Pearl Oyster (Pinctada Maxima) Resource, Department Of Fisheries
Fisheries management papers
This report has been prepared to provide the Intergrated Fisheries Allocation Advisory Committee (Allocation Committee) with a summarised, factual account of the nature and status of the Pinctada maxima (P. maxima) pearl oyster resource and current and historical trends in its use and conservation.
Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley
Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley
Electronic Theses and Dissertations
The State of Maine issues an unlimited number of commercial permits for the harvest of White Suckers Catostomus commersonii in Maine’s inland waters. The fishery provides a necessary source of fresh lobster Homarus americanus bait to coastal communities at a time when other bait sources are scarce. The impacts of the increasing number of permits and subsequent numbers of fishermen on the white sucker population is unknown. The Maine Department on Inland Fisheries and Wildlife (MDIFW) has closed a number of waters due to concerns that overfishing and incidental catch of other fish species may occur.
In Chapter 1, we …
Population Size And Survival Rates Of Blue Catfish In Chesapeake Bay Tributaries, Mary C. Fabrizio, Troy D. Tuckey, Robert J. Latour, Gary C. White, Alicia J. Norris, Mary Groves
Population Size And Survival Rates Of Blue Catfish In Chesapeake Bay Tributaries, Mary C. Fabrizio, Troy D. Tuckey, Robert J. Latour, Gary C. White, Alicia J. Norris, Mary Groves
Reports
This report comprises two studies conducted from 2012 to 2015 to estimate population size, survival rates, and movements of invasive blue catfish in Chesapeake Bay tributaries. The first study of population-size and survival was conducted in the James River, VA (Population Size and Survival Rates of Invasive Blue Catfish in Tidal Waters of the James River Subestuary). The second study on movement and survival of blue catfish was conducted in the Potomac River, the natural boundary between Maryland and Virginia (Movement Patterns and Survival Rate of Blue Catfish in a Non-Native Habitat Estimated with a Tagging Study). The Executive Summary …
Improving Spatio-Temporal Benefit Transfers For Pest Control By Generalist Predators In Cotton In The Southwestern Us, Ruscena Wiederholt, Kenneth J. Bagstad, Gary F. Mccracken, Jay E. Diffendorfer, John B. Loomis, Darius J. Semmens, Amy L. Russell, Chris Sansone, Kelsie Lasharr, Paul Cryan, Claudia Reynoso, Rodrigo A. Medellin, Laura Lopez-Hoffman
Improving Spatio-Temporal Benefit Transfers For Pest Control By Generalist Predators In Cotton In The Southwestern Us, Ruscena Wiederholt, Kenneth J. Bagstad, Gary F. Mccracken, Jay E. Diffendorfer, John B. Loomis, Darius J. Semmens, Amy L. Russell, Chris Sansone, Kelsie Lasharr, Paul Cryan, Claudia Reynoso, Rodrigo A. Medellin, Laura Lopez-Hoffman
Amy L. Russell
Parajulid Milliped Studies Xi: Initial Assessment Of The Tribe Gosiulini (Diplopoda: Julida), Rowland M. Shelley, Jamie M. Smith
Parajulid Milliped Studies Xi: Initial Assessment Of The Tribe Gosiulini (Diplopoda: Julida), Rowland M. Shelley, Jamie M. Smith
Insecta Mundi
The parajulid milliped tribe Gosiulini (Diplopoda: Julida) comprises two genera – Gosiulus Chamberlin, with three projections on the posterior gonopod and two species in the southcentral/southwestern United States (US) [Arizona, Colorado, New Mexico, and Texas], and monotypic Minutissimiulus Shelley, n. gen., with two projections, in Nuevo León, Mexico. Gosiulus conformatus Chamberlin occupies the plains/fl atlands of Texas, while its congener inhabits high elevations to the west in all four US states. Both are anticipated in Mexico (Coahuila, Chihuahua, and Sonora), and G. conformatus is expected in southeastern Colorado, eastern New Mexico, and the Oklahoma panhandle. The eastern boundary …
Evolving Healthy Populations, Nina H. Fefferman
Evolving Healthy Populations, Nina H. Fefferman
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Migrations Under Biased Perception: The Distribution Of Specialists And Generalists In A Heterogeneous Landscape With Variably Discounted Resources, Jonathan T. Rowell, Garrett M. Street, Igor Erovenko
Migrations Under Biased Perception: The Distribution Of Specialists And Generalists In A Heterogeneous Landscape With Variably Discounted Resources, Jonathan T. Rowell, Garrett M. Street, Igor Erovenko
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Predator-Prey Dynamics With Intraspecific Competition And An Allee Effect In The Predator Population, Anne E. Yust, Erin N. Bodine
Predator-Prey Dynamics With Intraspecific Competition And An Allee Effect In The Predator Population, Anne E. Yust, Erin N. Bodine
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Density-Dependent Leslie Matrix Modeling For Logistic Populations With Steady-State Distribution Control, Andrew M. Davis, Bruce Kessler
Density-Dependent Leslie Matrix Modeling For Logistic Populations With Steady-State Distribution Control, Andrew M. Davis, Bruce Kessler
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Using Citizen Science And Remote Sensing Data To Model Hummingbird Migration, Sarah R. Supp, Laura J. Graham, Frank A. La Sorte, Tina A. Cormier, Gil Bohrer, Donald Powers, Susan Wethington, Kevin Guay, Patrick Jantz, Scott Goetz, Catherine H. Graham
Using Citizen Science And Remote Sensing Data To Model Hummingbird Migration, Sarah R. Supp, Laura J. Graham, Frank A. La Sorte, Tina A. Cormier, Gil Bohrer, Donald Powers, Susan Wethington, Kevin Guay, Patrick Jantz, Scott Goetz, Catherine H. Graham
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Discrete Models Of Newt Population Declines Due To Severe Drought And Invasive Crayfish, Courtney L. Davis, Timothy A. Lucas
Discrete Models Of Newt Population Declines Due To Severe Drought And Invasive Crayfish, Courtney L. Davis, Timothy A. Lucas
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Social Structure Algorithms For A Yellow-Bellied Marmot Population Model, Erin N. Bodine, Anne E. Yust
Social Structure Algorithms For A Yellow-Bellied Marmot Population Model, Erin N. Bodine, Anne E. Yust
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Can Culling Barred Owls Save A Declining Northern Spotted Owl Population?, Alex Capaldi
Can Culling Barred Owls Save A Declining Northern Spotted Owl Population?, Alex Capaldi
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Mathematical Model Of Swimmer's Itch With Praziquantel Treatment, Kelly R. Buch
Mathematical Model Of Swimmer's Itch With Praziquantel Treatment, Kelly R. Buch
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Reproductive Schedule Of The Silver Shiner (Notropis Photogenis) In The Flint River Of Alabama, Kelly Hodgskins, Stephanie Greenleaf, Jonathan Hillman, Bruce Stallsmith
Reproductive Schedule Of The Silver Shiner (Notropis Photogenis) In The Flint River Of Alabama, Kelly Hodgskins, Stephanie Greenleaf, Jonathan Hillman, Bruce Stallsmith
Southeastern Fishes Council Proceedings
Many river-dwelling species of fish are dependent upon and stimulated by fluctuations in river flow for successful reproduction. This is especially true of pelagophils, a reproductive guild whose eggs and larvae require free drifting on river currents for several days. Notropis photogenis (Silver Shiner) is a rheophilic species with a broad distribution from Ontario to the southeastern United States including northern tributaries to the Tennessee River in Alabama. Little is known of its reproductive biology. The purpose of this study was to describe aspects of reproductive biology such as timing and pattern of ovarian development and oocyte maturation of N. …
Cedar Waxwings, Michael L. Avery, Anthony G. Duffiney
Cedar Waxwings, Michael L. Avery, Anthony G. Duffiney
Wildlife Damage Management Technical Series
Prevention and control of cedar waxwing (Bombycilla cedrorum) damage to small fruits such as blueberry, cherry, and strawberry is vexing to growers in many parts of the United States. Cedar waxwings (Figure 1) travel in flocks and descend in large numbers on berry crops, especially during winter and migration. In short feeding bouts, waxwings eat, peck, or knock substantial amounts of fruit from the plants. These frugivores are difficult to discourage once they become established at a given location. Harassment early and often using pyrotechnics or other sudden noisemakers can help prevent flocks from being established. The most effective preventative …