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Articles 181 - 210 of 679
Full-Text Articles in Animal Sciences
Fecundity And Survival Of The Calanoid Copepod Acartia Tonsa Fed Isochrysis Galeana (Tahitian Strain) And Chaetoceros Mulleri, Angelos Apeitos
Fecundity And Survival Of The Calanoid Copepod Acartia Tonsa Fed Isochrysis Galeana (Tahitian Strain) And Chaetoceros Mulleri, Angelos Apeitos
Master's Theses
Historically, red snapper (Lutjanus campechanus) larviculture at the Gulf Coast Research Lab (GCRL) used 25 ppt artificial salt water and mixed, wild zooplankton composed primarily of Acartia tonsa, a calanoid copepod. Acartia tonsa was collected from the estuarine waters of Davis Bayou and bloomed in outdoor tanks from which it was harvested and fed to red snapper larvae. We are developing a more controlled copepod mass culture system to support finfish larviculture. To that end, I examined the effect of single species versus mixed species of algae as food for the copepods. Wild A. tonsa were isolated and reared in …
The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá
The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá
Biology Faculty Publications
The genus Eupsophus is characterized by endotrophic larvae that inhabit water-filled cavities. The larvae feed from large yolk reserves during metamorphosis. The external morphology has been described for four of the ten known species and data on larval chondrocranial morphology are available only for one. We describe the extema1 morphology, oral disc and chondrocranial anatomy of the larvae of Eupsophus queulensis. The characteristics of E. queulensis tadpoles are compared with those of other Eupsophus larvae.
The Public Perception Of Enrichment For Captive Animals, Elizabeth Marie Webb
The Public Perception Of Enrichment For Captive Animals, Elizabeth Marie Webb
All Master's Theses
The effects of providing participants with educational information on enrichment as measured by the looking time at and ratings of zoo photographs were examined. One hundred and seventeen participants viewed photographs of zoo exhibits, 10 from each of the following categories: artificial exhibit with artificial enrichment, artificial exhibit with naturalistic enrichment, naturalistic exhibit with naturalistic enrichment, and naturalistic exhibit with artificial enrichment. Participants rated the photographs on exhibit aesthetic appeal, perceived animal happiness, and effectiveness of the enrichment. Pre- and posttest ratings of the importance of zoo roles were also collected. Results showed support for the hypothesis that participants provided …
Clouded Leopard Phylogeny Revisited: Support For Species Recognition And Population Division Between Borneo And Sumatra, Andreas Wilting, Valerie A. Buckley-Beason, Heike Feldhaar, Jurgen Gadau, Stephen J. O'Brien, K. Eduard Linsenmair
Clouded Leopard Phylogeny Revisited: Support For Species Recognition And Population Division Between Borneo And Sumatra, Andreas Wilting, Valerie A. Buckley-Beason, Heike Feldhaar, Jurgen Gadau, Stephen J. O'Brien, K. Eduard Linsenmair
Biology Faculty Articles
Background
The clouded leopard (Neofelis nebulosa) is one of the least known cat species and depletion of their forested habitats puts it under heavy pressure. Recently reclassification of Bornean clouded leopards (N. nebulosa diardi) to species level (N.diardi) was suggested based on molecular and morphological evidence. Since the genetic results were based solely on three Bornean samples we re-evaluated this partition using additional samples of Bornean clouded leopards (N = 7) and we were also able to include specimens from Sumatra (N = 3), which were lacking in previous analysis.
Results
We found strong …
Identification And Control Of Pest Slugs And Snails For Broadacre Crops In Western Australia, Svetlana Micic, Ken Henry, Paul Horne
Identification And Control Of Pest Slugs And Snails For Broadacre Crops In Western Australia, Svetlana Micic, Ken Henry, Paul Horne
Bulletins 4000 -
The numbers of slugs and snails have increased in broadacre cropping in Western Australia with the use of minimum tillage and stubble-retention practices. The organic content of paddocks increases under such systems, providing an increased food source especially to young slugs and snails. Soil moisture content is greater over summer leading to higher survival levels of slugs and snails.
Slug and snail pests in Australia have come from other countries, mainly the Mediterranean region. They damage plant seeds (mainly legumes), recently germinated seeds, seedlings and leaves and can be a contaminant of grain at harvest.
Investigating The Role Of Transcription Factor Ap-2�� In Reproduction, Anne Rachelle Howlett
Investigating The Role Of Transcription Factor Ap-2�� In Reproduction, Anne Rachelle Howlett
Undergraduate Honors Capstone Projects
The proper formation of gametes is critical for the propagation of species and for the fertility of the individual. The molecular pathways involved in gamete formation remains elusive, therefore, identification of genes involved is an important prerequisite to further our understanding of reproduction. This research will improve infertility treatments and prevention methods in animals and humans. We created mutants that lacked AP-2�� transcription factor after the mouse had entered meiosis and initiated folliculogenesis. The AP-2�� mutants were still fertile and phenotypically similar to normal mice that expressed AP-2�� transcription factor. We also produced mutants that lacked AP-2�� transcription factor during …
Population Size And Passage Efficiency Of Alabama Shad Reaching Jim Woodruff Lock And Dam, Patrick Ely
Population Size And Passage Efficiency Of Alabama Shad Reaching Jim Woodruff Lock And Dam, Patrick Ely
All Theses
In this study, I estimated the population size of migrating Alabama shad below Jim Woodruff Lock and Dam (JWLD) in the Apalachicola River located in the central panhandle of Northwest Florida using mark recapture and relative abundance techniques. The number of marked fish was adjusted for tag loss, emigration and mortality. The population size of migrating Alabama shad near JWLD was estimated at 26,029 (95% C.I. = 15,174 - 49,040) in 2005 and as 972 (95% C.I. = 270 - 9,720) in 2006. Due to the small sample size, a relative abundance method was used to independently estimate a population …
The Proliferative Response Of Equine Chondrocytes To Bovine Lymph Node Proteins In Vitro , Alison Reed
The Proliferative Response Of Equine Chondrocytes To Bovine Lymph Node Proteins In Vitro , Alison Reed
All Theses
Osteoarthritis is a leading cause of chronic lameness in horses. Many treatment options for osteoarthritis have limited effectiveness and are expensive. Treatments that stimulate cartilage development may promote cartilage healing. Bovine supramammary lymph nodes are available at no cost and contain bioactive growth factors that could promote cartilage healing. The purpose of this study was to measure the proliferative response of equine chondrocytes to bovine lymph node proteins. Chondrocytes were harvested from adult horses. Lymph node extract (LNE) was prepared by mixing freeze-dried lymph node powder with PBS. Experiments compared BGS and LNE on equal and unequal protein bases. Additional …
Bats And Mines: Evaluating Townsend's Big-Eared Bat Maternity Colony Response To Reclamation, Gabrielle F. Diamond
Bats And Mines: Evaluating Townsend's Big-Eared Bat Maternity Colony Response To Reclamation, Gabrielle F. Diamond
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
With the loss or modification of natural roosting habitat afforded by caves, abandoned mines have assumed increased importance as surrogate roosting sites for Townsend's big-eared bats (Corynorhinus townsendii) and other chiropteran species. However, increasing concerns for human safety have led to accelerated programs for mine closure. In efforts to protect roosting sites in mines showing significant bat activity, "bat compatible" gates are installed, thus allowing continued access to mine workings. Aside from ensuring public safety, these structures afford protection from disturbance to roosting bats. To date few posting-gating studies have been conducted to obtain information on the effects …
Factors Influencing Epiphytic Lichen Communities In Aspen-Associated Forests Of The Bear River Range, Idaho And Utah, Paul C. Rogers
Factors Influencing Epiphytic Lichen Communities In Aspen-Associated Forests Of The Bear River Range, Idaho And Utah, Paul C. Rogers
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In western North America, quaking aspen (Populus tremuloides Michx.) is the most common hardwood in montane landscapes. Fire suppression, grazing, wildlife management practices, and climate patterns of the past century are some of the threats to aspen coverage in this region. Researchers are concerned that aspen-dependent species may be losing habitat, thereby threatening their long-term local and regional viability. Though lichens have a rich history as air pollution indicators, I believe that they may also be useful as a metric of community diversity associated with habitat change. To date, few studies have specifically examined the status of aspen's epiphytic lichen …
Across-Breed Adjustment Factors For Expected Progeny Differences For Carcass Traits, L. Dale Van Vleck, L. V. Cundiff, T. L. Wheeler, S. D. Shackelford, M. Koohmaraie
Across-Breed Adjustment Factors For Expected Progeny Differences For Carcass Traits, L. Dale Van Vleck, L. V. Cundiff, T. L. Wheeler, S. D. Shackelford, M. Koohmaraie
Department of Animal Science: Faculty Publications
Adjustment factors to allow comparison of EPD from several breed associations for birth, weaning, and yearling weights have been available for more than 10 yr. This paper describes steps to calculate adjustment factors for EPD for 4 carcass traits: marbling score, fat thickness, ribeye area, and retail product percentage. The required information is the same as for the weight traits: 1) breed of sire solutions based on measurements on progeny at the US Meat Animal Research Center (USMARC) that have sires with breed association EPD, 2) mean EPD of sires weighted by number of progeny at USMARC (USMARC progeny not …
Bats Of Saint Martin, French West Indies/Sint Maarten, Netherlands Antilles, Hugh H. Genoways, Scott C. Pedersen, Peter A. Larsen, Gary G. Kwiecinski, Jeffrey J. Huebschman
Bats Of Saint Martin, French West Indies/Sint Maarten, Netherlands Antilles, Hugh H. Genoways, Scott C. Pedersen, Peter A. Larsen, Gary G. Kwiecinski, Jeffrey J. Huebschman
University of Nebraska State Museum: Mammalogy Papers
Six species of bats have been previously reported from the Antillean island of Saint Martin/Sint Maarten—Artibeus jamaicensis, Brachyphylla cavernarum, Molossus molossus, Tadarida brasiliensis, Noctilio leporinus, and Myotis nigricans nesopolus. Our field research reported herein documents an additional three species of bats from the island for the first time—Monophyllus plethodon, Ardops nichollsi, and Natalus stramineus. Re-examination of the single voucher of Myotis nigricans nesopolus has led us to exclude this species from the fauna of Saint Martin/Sint Maarten. Based on our field research and the study of specimens housed in museum collections, we present information …
Effect Of Calcium Channel Antagonists And Sex On Bone Metabolism In Aged Brown Norway Rats, Brent Kidd
Effect Of Calcium Channel Antagonists And Sex On Bone Metabolism In Aged Brown Norway Rats, Brent Kidd
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science & Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Brent Kidd on April 19, 2007.
Reproductive Cycles Of The Pearl Oysters, Pinctada Fucata (Gould) And Pinctada Margaritifera (Linnaeus) (Bivalvia: Pteriidae) In Southwestern Taiwan Waters, Jiuan-Jiuan Hwang
Reproductive Cycles Of The Pearl Oysters, Pinctada Fucata (Gould) And Pinctada Margaritifera (Linnaeus) (Bivalvia: Pteriidae) In Southwestern Taiwan Waters, Jiuan-Jiuan Hwang
Journal of Marine Science and Technology–Taiwan
The reproductive cycles of the pearl oysters Pinctada fucata (Gould) and Pinctada margaritifera (Linnaeus) were examined based on 339 and 284 specimens, collected in southwestern Taiwan. Except for the month of December 2002, Pinctada fucata were collected during the periods from March 2002 to September 2003. Pinctada margaritifera were collected over two periods: from March 2002 to November 2002 and from June 2003 to September 2003. Histological observations on gonadal development indicated that Pinctada fucata and Pinctada margaritifera were protandrous hermaphrodites, and both species exhibited different annual cyclical patterns, in which maturity peaked in May and October for Pinctada fucata, …
Gymnothorax Shaoi, A New Species Of Moray Eel (Anguilliformes: Muraenidae) From Southeastern Taiwan, Hong-Ming Chen, Kar-Hoe Loh
Gymnothorax Shaoi, A New Species Of Moray Eel (Anguilliformes: Muraenidae) From Southeastern Taiwan, Hong-Ming Chen, Kar-Hoe Loh
Journal of Marine Science and Technology–Taiwan
A new species of moray eel, Gymnothorax shaoi, is described here based on ten specimens collected in southeastern Taiwan. The new muraenid is distinct from its most similar species, Gymnothorax fimbriatus, in the character combinations of having brown body color, dark brown spots in at least three rows on body side and spots on posterior dorsal and caudal fin not forming oblique streaks; paler rictus, jaws, and inner mouth; fins without pale margins; no bend in lower jaw; fewer total vertebrae; and smaller in maximum body size. G. shaoi’s eyes have yellow to orange irises, body with dark reddish brown …
A Survey Of The Cockle A. Antiquata, Chumbe Island, Kelsey Jacobsen, Lisl Esherick
A Survey Of The Cockle A. Antiquata, Chumbe Island, Kelsey Jacobsen, Lisl Esherick
Independent Study Project (ISP) Collection
A survey of the cockle Anadara antiquata’s population was performed on the intertidal zone of Chumbe, a small island located off of Zanzibar, Tanzania. Cockle abundance and size were measured along transects laid parallel to shore at four sites, two sites on the west side and two on the east. The marine and intertidal environments on the western side of the island are protected under Chumbe Island Coral Park (CHICOP), a privately managed Marine Protected Area (MPA). However, small-scale artisanal fisheries including cockle collection by women still occur on the unprotected east side. This study will attempt to evaluate the …
First Slaty-Backed Gull For Minnesota, Philip C. Chu
First Slaty-Backed Gull For Minnesota, Philip C. Chu
Biology Faculty Publications
No abstract provided.
Ua66/5/2 Newsletter, Wku Department Of Agriculture
Ua66/5/2 Newsletter, Wku Department Of Agriculture
WKU Administration Documents
Newsletter regarding programs, events, students and alumni of the WKU Agriculture department.
Fisheries Research Report No.161 - Distribution And Abundance Of Juvenile Pink Snapper, Pagrus Auratus, In The Gulfs Of Shark Bay, Western Australia, From Trap Surveys, Gary Jackson, C. Burton, Michael J. Moran, Ben Radford
Fisheries Research Report No.161 - Distribution And Abundance Of Juvenile Pink Snapper, Pagrus Auratus, In The Gulfs Of Shark Bay, Western Australia, From Trap Surveys, Gary Jackson, C. Burton, Michael J. Moran, Ben Radford
Fisheries Research Reports
Trap surveys using Antillean-Z fish traps were carried out across a range of depths and habitat types in the gulfs of Shark Bay between 1998 and 2000. Objectives of the study were (i) to evaluate the efficiency of the fish traps in catching 0+ and 1+ pink snapper (Pagrus auratus), (ii) to investigate the distribution and abundance of juvenile pink snapper in both gulfs using trap surveys, (iii) to investigate the influence of environmental factors including habitat-type on the distribution of juvenile pink snapper and, (iv) to develop trap indices of 0+ relative abundance and assess their use for monitoring …
A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia.
A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia.
Fisheries Management Papers
This draft strategy was developed by the Department of Fisheries, Western Australia, hereafter known as the “Department of Fisheries” which has responsibility for managing fish resources (within Territorial waters out to 12 nautical miles) on behalf of the Commonwealth Department of Transport and Regional Services (DoTARS), through the applied Fish Resources Management Act (FRMA) (WA)(CI) (the “Applied Act”). The Applied Act provides a legislative framework that allows for management arrangements to be developed specifically for Christmas Island. The management of fisheries in Western Australia uses an adaptive approach which balances the need for the effective management of fish stocks with …
Shark Bay Prawn And Scallop Fisheries. Draft Review Report, Department Of Fisheries Western Australia
Shark Bay Prawn And Scallop Fisheries. Draft Review Report, Department Of Fisheries Western Australia
Fisheries Management Papers
In recent times, the Department of Fisheries has received representations from both sectors about the ongoing interaction of the fisheries and their respective management settings. As a result, a decision was made to comprehensively review the fisheries, taking into account matters of fishery sustainability and gear interactions, together with industry economics and market considerations. The review has also addressed research requirements to ensure an appropriate scientific basis for decision-making into the future.
Lpe Center News, April 2007
Livestock and Poultry Environmental Learning Center: Newsletters
In this issue: • Value of Manure in Land Application Systems to be Presented in the May Webcast • What’s New on the LPE Website? • Value of Manure Topic Coming Soon • SBIR Program Encourages Research in New Technologies for Manure Management • Promising Treatment Technology Removes P from Manure
Warts And All: The Fate Of The American Toad, Heather Moulton
Warts And All: The Fate Of The American Toad, Heather Moulton
Inquiry Journal 2007
No abstract provided.
Thomas, Richard Curd Pope, 1872-1939 (Sc 1486), Manuscripts & Folklife Archives
Thomas, Richard Curd Pope, 1872-1939 (Sc 1486), Manuscripts & Folklife Archives
Manuscript Collection Finding Aids
Finding aid for Manuscripts Small Collection 1486. Speeches made throughout Kentucky by Richard Curd Pope Thomas at various fraternal, civic, educational, and religious events. Also includes several poems written by John A. Logan. A patriotic speech given during the Spanish-American War is available as a full-text scan (Click on "Additional Files" below).
Extensions Of Local Domains With Trivial Generic Fiber, William Heinzer, Christel Rotthaus, Sylvia Wiegand
Extensions Of Local Domains With Trivial Generic Fiber, William Heinzer, Christel Rotthaus, Sylvia Wiegand
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
We consider injective local maps from a local domain R to a local domain S such that the generic fiber of the inclusion map R -> S is trivial, that is P R (0) for every nonzero prime ideal P of S. We present several examples of injective local maps involving power series that have or fail to have this property. For an extension R -> S having this property, we give some results on the dimension of S; in some cases we show dim S = 2 and in some cases dim S = 1.
National Wildlife Refuge System: Friends Forward (Spring 2007)
National Wildlife Refuge System: Friends Forward (Spring 2007)
United States Fish and Wildlife Service: Publications
Contents:
Design Concepts Bring Down Costs
“America the Beautiful Interagency Pass” Is Key to Refuge Travel
From the Chief: Refuges are Great!
Reading Rachel Carson
National Honors Bestowed on Friends Group and Volunteer
Friends Support Florida’s Winter Whooping Cranes
Walk on Winn Dixie: A Monthly Promenade
Writing a Newsletter? Here Are Some Tips
Noxubee Friends Advertise Refuge on Free Billboard
Glacier Activity at Togiak National Wildlife Refuge
Frequently Asked Questions
Calendar of Friends and National Events
A Cautionary Tale: Cryptic Sexual Size Dimorphism In A Socially Monogamous Passerine, Michael T. Murphy
A Cautionary Tale: Cryptic Sexual Size Dimorphism In A Socially Monogamous Passerine, Michael T. Murphy
Biology Faculty Publications and Presentations
Among socially monogamous birds, standard metrics suggest that males are only ∼5% larger than females. An untested assumption is that, with the exception of reproductive systems, males and females are scaled mirror images of one another. I used external morphological and skeletal data, and information on muscle mass and organ size, to test this assumption in a population of breeding Eastern Kingbirds (Tyrannus tyrannus). Male and female Eastern Kingbirds exhibited no differences in body mass or standard measures of size, except in a longer (∼6%) wing chord and tail in males. However, keel length, a character rarely measured …
Molecular Phylogenetics Of Perciform Fishes Using The Nuclear Recombination Activating Gene 1, Andrew R. Mahon
Molecular Phylogenetics Of Perciform Fishes Using The Nuclear Recombination Activating Gene 1, Andrew R. Mahon
Biological Sciences Theses & Dissertations
The order Perciformes contains one-third of all extant fishes in twenty different suborders and over 10,000 species. Few systematic investigations have been performed on this large group of fishes at the suborder level and their evolutionary history is widely recognized as problematic. This dissertation presents three studies: a molecular phylogenetic analysis of the putative suborders of the order Perciformes, an analysis of interrelationships of the families of the perciform suborder Percoidei, and a multi-gene investigation of the percoid superfamily Sparoidea.
The taxa sampled in this dissertation represent one of the most inclusive molecular datasets, to date, testing the monophyly of …
A Molecular Evaluation Of The North American “Grassland” Sparrow Clade, John Klicka, Garth M. Spellman
A Molecular Evaluation Of The North American “Grassland” Sparrow Clade, John Klicka, Garth M. Spellman
Ornithology Program (HRC)
Because they share several morphological and ecological characters, the North American sparrow (Emberizidae) genera Ammodramus, Passerculus, and Xenospiza have historically been considered members of a well-defined “grassland” sparrow assemblage. Relationships among the 11 members of this group have been the subject of much taxonomic debate, yet no comprehensive molecular assessment of relationships has been done. We investigated these relationships using mitochondrial DNA sequence data that included complete cytochrome-b and ND2 genes. Phylogenetic reconstructions derived via parsimony, likelihood, and Bayesian methods were congruent. The grassland sparrows, as presently configured, are polyphyletic. Pooecetes gramineus, Amphispiza belli (but not A. …
The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla
The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla
Biology Faculty Publications
The external morphology and oral disc of the tadpole of Leptodactylus notoaktites Heyer, 1978, are described and illustrated for Gosner’s stage 33. The internal oral anatomy was analyzed under SEM at Gosner’s stage 36 whereas chondrocranial anatomy is reported for Gosner’ stage 38. The morphology of this tadpole is compared with those available for other species of the L. mystaceus complex. The overall characteristics do not depart from those known for the genus Leptodactylus and they particularly agree for those of the fuscus species group. The labial tooth row formula is 2(2)/3.