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2013

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Articles 1081 - 1110 of 1169

Full-Text Articles in Animal Sciences

Sustainable Production Of Swine: Putting Lipstick On A Pig?, Michelle B. Nowlin Jan 2013

Sustainable Production Of Swine: Putting Lipstick On A Pig?, Michelle B. Nowlin

Faculty Scholarship

No abstract provided.

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Trichoptera Of Mindoro, The Philippines I. New Species And Records From The Baroc River Catchment, Roxas, Oriental Mindoro (Insecta, Trichoptera), Hendrik Freitag, Wolfram Mey Jan 2013

Trichoptera Of Mindoro, The Philippines I. New Species And Records From The Baroc River Catchment, Roxas, Oriental Mindoro (Insecta, Trichoptera), Hendrik Freitag, Wolfram Mey

Biology Faculty Publications

The study of a collection of caddisflies from Mindoro yielded a total of 34 species. Eight species proved to be unknown taxa and are described in the present article as: Rhyacophila crenophysetis spec. nov., Agapetus parallelaria spec. nov., Stactobia roxasi spec. nov., Paduniella vicentis spec. nov., Paduniella prodita spec. nov., Psychomyia taugadensis spec. nov., Tinodes hypoplectis spec. nov., and Ecnomus biundularia spec. nov. A list of all collected species is provided.

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A New Intertidal Shore Bug (Heteroptera: Saldidae) From The Philippines, Hendrik Freitag, Herbert Zettel, Clister V. Pangantihon Jan 2013

A New Intertidal Shore Bug (Heteroptera: Saldidae) From The Philippines, Hendrik Freitag, Herbert Zettel, Clister V. Pangantihon

Biology Faculty Publications

Salduncula carmencitae sp.n. is described, its habitus and the paramere and parandria of the male are illustrated. This shore bug was found on Mindanao Island, the Philippines, in the intertidal zone. Habitat and behaviour of the species are briefly described. The distinguishing diagnostic characters of species of Salduncula Brown, 1954 are discussed.

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Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) From Mindoro, Philippines, With Description Of The Larvae And Two New Species Using Dna Sequences For The Assignment Of The Developmental Stages, Hendrik Freitag Jan 2013

Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) From Mindoro, Philippines, With Description Of The Larvae And Two New Species Using Dna Sequences For The Assignment Of The Developmental Stages, Hendrik Freitag

Biology Faculty Publications

Ancyronyx buhid sp. n. and Ancyronyx tamaraw sp. n. are described based on adults and larvae, matched using their cox1 or cob DNA sequence data. Additional records of Ancyronyx schillhammeri Jäch, 1994 and Ancyronyx minerva Freitag & Jäch, 2007 from Mindoro are listed. The previously unknown larva of Ancyronyx schillhammeri is also described here, aided by cox1 data. The new species and larval stages are described in detail and illustrated by SEM and stacked microscopic images. Keys to the adult and larval Ancyronyx species of Mindoro and an updated checklist of Philippine Ancyronyx species are provided. The usefulness as bioindicators, …

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Hydraena (Hydraenopsis) Ateneo, New Species (Coleoptera, Hydraenidae) And Other Aquatic Polyphaga From A Small Habitat Patch In A Highly Urbanized Landscape Of Metro Manila, Philippines, Hendrik Freitag Jan 2013

Hydraena (Hydraenopsis) Ateneo, New Species (Coleoptera, Hydraenidae) And Other Aquatic Polyphaga From A Small Habitat Patch In A Highly Urbanized Landscape Of Metro Manila, Philippines, Hendrik Freitag

Biology Faculty Publications

Seven species of Hydraenidae, Hydrophilidae and Elmidae are recorded from temporary freshwater habitats at the Ateneo de Manila University Campus in the metropolitan area of Manila, Philippines. They were identified as Enochrus (Lumetus) fragiloides d’Orchymont, Helochares (Hydrobaticus) lepidus d’Orchymont, Helochares (Helochares) pallens (MacLeay), Hydraena (Hydraenopsis) scabra d’Orchymont, Hydraena (Hydraenopsis) palawanensis Freitag & Jäch (new record for Luzon Island), Stenelmis sp. A further hydraenid species was unknown to science and is newly described: Hydraena (Hydraenopsis) ateneo Freitag, sp. n. Aedeagus, gonocoxite, spermatheca, and female tergite X are illustrated by …

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Sceloporus Clarkii—Nocturnal Foraging, Christopher Blair, Noberto Martinez-Mendez, Rafael A. Lara-Resendiz Jan 2013

Sceloporus Clarkii—Nocturnal Foraging, Christopher Blair, Noberto Martinez-Mendez, Rafael A. Lara-Resendiz

Publications and Research

No abstract provided.

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Evaluating The Use Of Autonomous Recording Units To Monitor Yellow Rails, Nelson's Sparrows, And Le Conte's Sparrows, Anna Marie Sidie-Slettedahl Jan 2013

Evaluating The Use Of Autonomous Recording Units To Monitor Yellow Rails, Nelson's Sparrows, And Le Conte's Sparrows, Anna Marie Sidie-Slettedahl

Electronic Theses and Dissertations

Population status and habitat use of yellow rails (Coturnicops noveboracensis) (YERA), Nelson’s sparrows (Ammodramus nelsoni) (NESP), and Le Conte’s sparrows (Ammodramus leconteii) (LCSP) are poorly known, so systematic surveys of these elusive species are needed to inform conservation planning and guide management. A standardized protocol for monitoring secretive marsh birds exists (Conway 2009, 2011); however, these species call at night and may be missed during early-morning marsh bird surveys. I tested the effectiveness of autonomous recording units (ARUs) to survey these species by analyzing recorded vocalizations using bioacoustics software. I deployed 22 ARUs at 54 sites in northern Minnesota and …

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Effect Of Laser Ablation Depth In Otolith Life History Scans, Renée R. Hoover, Cynthia M. Jones Jan 2013

Effect Of Laser Ablation Depth In Otolith Life History Scans, Renée R. Hoover, Cynthia M. Jones

OES Faculty Publications

Life history scans of fish otoliths are bringing new insight into the structure, connectivity, and movement of fish populations. Data obtained from such scans, however, possess in-herent limitations that have not yet been fully addressed or understood. For example, several investigators have noted delays in otolith elemental uptake that do not appear to reflect habitat exposure. We hypothesized that the 3-dimensional structure of otoliths may produce sampling artifacts in the results obtained from laser ablation scans. To test this hypothesis, we sampled sagittal otoliths from juvenile Atlantic croaker Micropogonias undulatus with laser ablation inductively coupled plasma mass spectrometry to obtain …

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Demographics Of A Commercially Exploited Population Of Flathead Catfish (Pylodictis Olivaris) In The Wabash River, Cassi Jo Moody-Carpenter Jan 2013

Demographics Of A Commercially Exploited Population Of Flathead Catfish (Pylodictis Olivaris) In The Wabash River, Cassi Jo Moody-Carpenter

Masters Theses

Flathead catfish, Pylodictis olivaris, are a popular game and commercial fish in the Midwestern United States. In the lower 322 km of the Wabash River, flathead catfish are commercially and recreationally harvested by Illinois and Indiana fishers. Current management regulations are different between the two states; Illinois and Indiana have minimum length limits of 381 and 254 mm, respectively. Indiana has proposed changing their minimum length limit to 381 mm and allowing only one fish> 889 mm to be harvested per day. My study examined the current status of flathead catfish in the Wabash River to determine a standardized …

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Analysis Of An Inkjet Printed Strip Assay For Pregnancy Test In Cattle, Alexandra Windley Kelley Jan 2013

Analysis Of An Inkjet Printed Strip Assay For Pregnancy Test In Cattle, Alexandra Windley Kelley

Undergraduate Honors Capstone Projects

Using commercially available antibodies, we created a modified ELISA strip assay to determine pregnancy in cattle. The anti‐progesterone antibody was printed on small membrane strips via an Inkjet printer. The strips were subsequently analyzed using varying concentrations of progesterone. The objective of this study was to assess this novel antibody printing process and to determine the binding activity of the anti‐progesterone antibody. The long‐term objective is to develop a pen-side pregnancy test that would cost less than $1.00. In this specific study, it was determined that the anti‐progesterone antibody used did not provide adequate sensitivity for visualization required for pen‐side …

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Utilizing Single Nucleotide Polymorphism Analysis In Determining Parentage Of Cattle, Nicole M. Elbert Jan 2013

Utilizing Single Nucleotide Polymorphism Analysis In Determining Parentage Of Cattle, Nicole M. Elbert

Undergraduate Honors Capstone Projects

Parentage identification within cattle herds is an important aspect of record keeping. It is essential for accurate registration within a purebred association and decision making for production purposes, such as replacement heifer and sire selection. Methods used to identify parentage have evolved from utilizing blood protein antigens, restriction fragment length polymorphism (RFLP) and microsatellites to the current technology of analyzing DNA profiles for differing single nucleotide polymorphisms (SNPs). In this preliminary study we analyzed genotype data from 1,066 samples obtained from various cattle breeds. These breeds included Holstein, Angus, Hereford, Irish Black, Jersey, Red Angus, Limousine, Charolais, Brown Swiss and …

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Different Modes Of Evolution In Males And Females Generate Dichromatism In Fairy-Wrens (Maluridae), Allison E. Johnson, J. Jordan Price, Stephen Pruett-Jones Jan 2013

Different Modes Of Evolution In Males And Females Generate Dichromatism In Fairy-Wrens (Maluridae), Allison E. Johnson, J. Jordan Price, Stephen Pruett-Jones

School of Biological Sciences: Faculty Publications

Sexual dichromatism in birds is often attributed to selection for elaboration in males. However, evolutionary changes in either sex can result in plumage differences between them, and such changes can result in either gains or losses of dimorphism. We reconstructed the evolution of plumage colors in both males and females of species in Maluridae, a family comprising the fairy-wrens (Malurus, Clytomias, Sipodotus), emu-wrens (Stipiturus), and grasswrens (Amytornis). Our results show that, across species, males and females differ in their patterns of color evolution. Male plumage has diverged at relatively steady rates, whereas …

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Antelope Mating Strategies Facilitate Invasion Of Grasslands By A Woody Weed, Shivani Jadeja, Soumya Prasad, Suhel Quader, Kavita Isvaran Jan 2013

Antelope Mating Strategies Facilitate Invasion Of Grasslands By A Woody Weed, Shivani Jadeja, Soumya Prasad, Suhel Quader, Kavita Isvaran

School of Biological Sciences: Faculty Publications

Intra and interspecific variation in frugivore behaviour can have important consequences for seed dispersal outcomes. However, most information comes from among-species comparisons, and within-species variation is relatively poorly understood. We examined how large intraspecific differences in the behaviour of a native disperser, blackbuck antelope Antilope cervicapra, influence dispersal of a woody invasive, Prosopis juliflora, in a grassland ecosystem. Blackbuck disperse P. juliflora seeds through their dung. In lekking blackbuck populations, males defend clustered or dispersed mating territories. Territorial male movement is restricted, and within their territories males defecate on dung-piles. In contrast, mixed-sex herds range over large areas …

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Historical Catch Trends And Efficacy Of Video Surveillance Monitoring Of Catch Per Unit Effort At Recreational Fishing Piers In South Carolina, Charles Christian Johnson Jan 2013

Historical Catch Trends And Efficacy Of Video Surveillance Monitoring Of Catch Per Unit Effort At Recreational Fishing Piers In South Carolina, Charles Christian Johnson

Electronic Theses and Dissertations

In recent years, recreational anglers claim declining catch rates in the shore-based pier fishery in South Carolina. The study seeks to evaluate whether catch data supports angler testimony in this region, to examine the relationship of landings at piers in context of the regional level, and to test a method which would enhance the ability of managers to monitor landings of this under-studied fishery. Novel, non-standardized catch series extending back to 1973 were acquired from fishing piers and examined in an attempt to produce significant trends in measures of catch. King mackerel catch (Scomberomorus cavalla) was tested for correlation to …

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Variations Of Ghrelin, Growth Hormone, And Insulin-Like Growth Factor I In The West Indian Manatee (Trichechus Manatus), Rachel Lynn Cimino Jan 2013

Variations Of Ghrelin, Growth Hormone, And Insulin-Like Growth Factor I In The West Indian Manatee (Trichechus Manatus), Rachel Lynn Cimino

UNF Graduate Theses and Dissertations

The metabolic hormones ghrelin, growth hormone, and insulin-like growth factor I are influenced by developmental age, sex, and nutritional status in domestic and free-ranging species. However the role these hormones play has not previously been explored in sub-tropical/ tropical mammals. Furthermore, the seasonality of species with less dynamic environmental cues, such as the West Indian manatee, have not been studied. The West Indian manatee is and endangered species distributed in the southeastern United States and throughout the Caribbean basin, and its nutritional physiology is influenced by environmental factors. Understanding the hormone response to nutritional status in this species and its …

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Commentary Managing Risk From Bears And Other Potentially Lethal Wildlife: Predictability, Accountability, And Liability, Stephen Stringham Jan 2013

Commentary Managing Risk From Bears And Other Potentially Lethal Wildlife: Predictability, Accountability, And Liability, Stephen Stringham

Human–Wildlife Interactions

No abstract provided.

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Commentary Rethinking Airport Land-Cover Paradigms: Agriculture, Grass, And Wildlife Hazards, Travis L. Devault, Michael J. Begier, Jerrold L. Belant, Bradley F. Blackwell, Richard A. Dolbeer, James A. Martin, Thomas W. Seamans, Brian E. Washburn Jan 2013

Commentary Rethinking Airport Land-Cover Paradigms: Agriculture, Grass, And Wildlife Hazards, Travis L. Devault, Michael J. Begier, Jerrold L. Belant, Bradley F. Blackwell, Richard A. Dolbeer, James A. Martin, Thomas W. Seamans, Brian E. Washburn

Human–Wildlife Interactions

No abstract provided.

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Generational Habituation And Current Bald Eagle Populations, Jeremy E. Guinn Jan 2013

Generational Habituation And Current Bald Eagle Populations, Jeremy E. Guinn

Human–Wildlife Interactions

Bald eagle (Haliaeetus leucocephalus) populations have expanded, even as increasing human presence and activity near nesting sites has increased. The generational habituation hypothesis may explain current bald eagle behaviors associated with human presence. Generational habituation begins when a juvenile imprints on a nest area near human activity, then selects a similar nest site when it is reproductively mature. Successive generations also may imprint on nest sites near human activity, expanding the population into areas that once were considered suboptimal nesting habitat. Generational habituation has implications in several areas important to basic and applied ecology in a wide range …

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Influence Of Removal Sampling Of Small Mammals On Abundance And Diversity Attributes: Scientific Implications, Thomas P. Sullivan, Druscilla S. Sullivan Jan 2013

Influence Of Removal Sampling Of Small Mammals On Abundance And Diversity Attributes: Scientific Implications, Thomas P. Sullivan, Druscilla S. Sullivan

Human–Wildlife Interactions

Terrestrial small mammals occupy a variety of temperate and boreal forests in North America and Eurasia and contribute to biodiversity within these ecosystems. Researchers commonly use a variation of removal trapping to sample small-mammal populations and communities in these systems. However, it is not known if recurrent removal sampling might bias abundance estimates or alter the very populations under study. We addressed 2 questions: (1) are estimates of population size and species richness and diversity gained from removal trapping different from those based on live-trapping? and (2) what residual impact does removal trapping have on small-mammal populations and communities, as …

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Consumption Of Whole Cottonseed By White-Tailed Deer And Nontarget Species, Benjamin D. Taylor, Eddie Lyons, Dale Rollins, Cody B. Scott, James E. Huston, Charles A. Taylor Jan 2013

Consumption Of Whole Cottonseed By White-Tailed Deer And Nontarget Species, Benjamin D. Taylor, Eddie Lyons, Dale Rollins, Cody B. Scott, James E. Huston, Charles A. Taylor

Human–Wildlife Interactions

Supplementing diets of white-tailed deer (Odocoileus virginianus) with pelleted rations is an increasingly common practice aimed at increasing deer antler size on rangelands in Texas. Feed loss to consumption by various nontarget species (e.g., raccoons [Procyon lotor] and feral pigs [Sus scrofa]) raises both ecological and economic concerns. Whole cottonseed is a feedstuff that may afford a more targeted supplemental feeding effort. Accordingly, we determined: (1) consumption rates of whole cottonseed by feral pigs and raccoons in captivity; and (2) species visitation at feed sites and preference for whole cottonseed relative to whole corn …

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Potential Role Of Wildlife In Pathogenic Contamination Of Fresh Produce, Jeff A. Langholz, Michele T. Jay-Russell Jan 2013

Potential Role Of Wildlife In Pathogenic Contamination Of Fresh Produce, Jeff A. Langholz, Michele T. Jay-Russell

Human–Wildlife Interactions

The safety of fresh produce is an important concern in the United States, especially in the wake of recent national foodborne illness outbreaks. The agricultural industry has implemented steps to enhance food safety along the entire farm-to-fork supply chain. This includes on-farm measures to exclude wildlife and to remove its habitat in and around fields. Farmers and others from across the United States have expressed concern about the ecological consequences and uncertain food safety benefits of such practices. This article reviews the scientific rationale behind management of wildlife and its habitat as part of good agriculture practices for enhancing food …

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Avian Diets In A Saline Ecosystem: Great Salt Lake, Utah, Usa, Anthony J. Roberts Jan 2013

Avian Diets In A Saline Ecosystem: Great Salt Lake, Utah, Usa, Anthony J. Roberts

Human–Wildlife Interactions

Saline lakes provide a prey-rich, predator-free environment for birds to utilize during migration and stopover periods. The Great Salt Lake (GSL), Utah is the largest salt lake in North America and is utilized by millions of migratory birds. It also is host to multiple commercial endeavors. Proposed expansion of commercial use of the GSL would result in increased impounded area and water extraction for mineral production, which may increase the GSL’s salinity and negatively impact invertebrate abundance. I review previous literature and synthesize diets of avian species utilizing the GSL to determine the importance of each invertebrate species, including brine …

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In The News, Joe N. Caudell Jan 2013

In The News, Joe N. Caudell

Human–Wildlife Interactions

No abstract provided.

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Beware The Boojum: Caveats And Strengths Of Avian Radar, Robert C. Beason, Tim J. Nohara, Peter Weber Jan 2013

Beware The Boojum: Caveats And Strengths Of Avian Radar, Robert C. Beason, Tim J. Nohara, Peter Weber

Human–Wildlife Interactions

Radar provides a useful and powerful tool to wildlife biologists and ornithologists. However, radar also has the potential for errors on a scale not previously possible. In this paper, we focus on the strengths and limitations of avian surveillance radars that use marine radar front-ends integrated with digital radar processors to provide 360° of coverage. Modern digital radar processors automatically extract target information, including such various target attributes as location, speed, heading, intensity, and radar cross-section (size) as functions of time. Such data can be stored indefinitely, providing a rich resource for ornithologists and wildlife managers. Interpreting these attributes in …

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Effects Of Site Characteristics, Pinyon-Juniper Management, And Precipitation On Habitat Quality For Mule Deer In New Mexico, Louis C. Bender, Jon C. Boren, Heather Halbritter, Shad Cox Jan 2013

Effects Of Site Characteristics, Pinyon-Juniper Management, And Precipitation On Habitat Quality For Mule Deer In New Mexico, Louis C. Bender, Jon C. Boren, Heather Halbritter, Shad Cox

Human–Wildlife Interactions

Wildlife enterprises are increasingly important to ranch income in the western United States. Habitat management practices that facilitate wildlife are needed for optimal management of multiple-use ranches, particularly for economically important species, such as mule deer (Odocoileus hemionus), that are declining throughout much of their range. We tested the effects of vegetation cover type, site characteristics, pinyon-juniper management treatments, and precipitation on body condition and size of spring-summer-autumn (SSA) home ranges of mule deer to assess habitat quality on the Corona Range and Livestock Research Center (CRLRC), a multiple-use research ranch in east central New Mexico. Accrual of …

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Jaguar And Puma Attacks On Livestock In Costa Rica, Ronit Amit, Elias José Gordillo-Chávez, Raquel Bone Jan 2013

Jaguar And Puma Attacks On Livestock In Costa Rica, Ronit Amit, Elias José Gordillo-Chávez, Raquel Bone

Human–Wildlife Interactions

Human–felid conflicts threaten long-term conservation of jaguars (Panthera onca) and pumas (Puma concolor). We interviewed ranchers from 50 ranches and inspected farms in northern Costa Rica that reported recent attacks on livestock by these 2 felids. We analyzed ranch characteristics, livestock management practices, details of predation, estimated market-value of economic losses, and ranchers’ perception of damage. Ranchers reported 81 felid attacks on livestock, including 60 head of cattle, 16 horses, 3 sheep, 1 pig, and 1 goat. Mean size of ranches was 233 km2, and mean livestock herd size was 109, including cattle, horses, …

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Deer-Activated Bioacoustic Frightening Device Deters White-Tailed Deer, Aaron M. Hildreth, Scott E. Hygnstrom, Kurt C. Vercauteren Jan 2013

Deer-Activated Bioacoustic Frightening Device Deters White-Tailed Deer, Aaron M. Hildreth, Scott E. Hygnstrom, Kurt C. Vercauteren

Human–Wildlife Interactions

White-tailed deer (Odocoileus virginianus) damage urban and suburban plantings, as well as crops and stored feed. We tested the efficacy of a frightening device that played pre-recorded distress calls of adult female white-tailed deer when activated by an infrared motion sensor for a period of 13 days. This deer-activated bioacoustic frightening device reduced deer entry into protected sites by 99% (δ = -558, P = 0.09) and bait consumption by 100% (δ = -75, P = 0.06). The frightening device that we evaluated demonstrated potential for reducing damage in disturbed environments and agricultural settings.

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Exploring The Sulfide Tolerance Of Ectosymbiotic Niphargus Amphipods From The Frasassi Caves, Central Italy, Jan Bauermeister, Karoline Assig, Sharmishtha Dattagupta Jan 2013

Exploring The Sulfide Tolerance Of Ectosymbiotic Niphargus Amphipods From The Frasassi Caves, Central Italy, Jan Bauermeister, Karoline Assig, Sharmishtha Dattagupta

International Journal of Speleology

Two species of the crustacean amphipod genus Niphargus inhabit the sulfidic groundwaters of the Frasassi caves in central Italy, and both harbor filamentous, sulfide-oxidizing Thiothrix ectosymbionts. As sulfide is toxic to most aerobic organisms, it appeared possible that the ectosymbionts could help their Niphargus hosts with detoxification processes. In this study, mortality due to sulfide was compared between Niphargus individuals with ectosymbionts and individuals whose ectosymbionts had been killed by antibiotic treatment. Both Frasassi-dwelling Niphargus species revealed exceptionally high tolerances to sulfide compared to other amphipod species studied so far. Niphargus individuals without viable ectosymbionts tolerated sulfide levels exceeding those …

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Factors Shaping The Ontogeny Of Vocal Signals In A Wild Parrot, Karl S. Berg, Steven R. Beissinger, Jack W. Bradbury Jan 2013

Factors Shaping The Ontogeny Of Vocal Signals In A Wild Parrot, Karl S. Berg, Steven R. Beissinger, Jack W. Bradbury

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Parrots rely heavily on vocal signals to maintain their social and mobile lifestyles. We studied vocal ontogeny in nests of wild green-rumped parrotlets (Forpus passerinus) in Venezuela. We identified three successive phases of vocal signaling that corresponded closely to three independently derived phases of physiological development. For each ontogenetic phase, we characterized the relative importance of anatomical constraints, motor skills necessary for responding to specific contexts of the immediate environment, and the learning of signals that are necessary for adult forms of communication. We observed shifts in the relative importance of these three factors as individuals progressed from …

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Molecular Technologies In The Science And Policy Of Florida Largemouth Bass Micropterus Floridanus Management In Florida, Josh Sakmar Jan 2013

Molecular Technologies In The Science And Policy Of Florida Largemouth Bass Micropterus Floridanus Management In Florida, Josh Sakmar

USF Tampa Graduate Theses and Dissertations

Advances in molecular technologies have provided conservation biologist with the opportunity to quantify the genetic structure of a population and, in turn develop management guidelines and policies aimed at preserving the genetic diversity of fish stocks challenged by human activities. This thesis examines the status of genetics as applied to the management of freshwater fisheries by state natural resource agencies with a purpose of understanding the keys to a successful genetics program. An online survey was used to investigate the breadth of molecular marker application to freshwater fisheries management by state natural resource departments. Seven questions were posed to 50 …

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