Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (1320)
- Utah State University (445)
- University of Kentucky (268)
- University of Arkansas, Fayetteville (204)
- TÜBİTAK (182)
-
- University of South Florida (168)
- Western Kentucky University (168)
- Old Dominion University (146)
- South Dakota State University (144)
- Brigham Young University (137)
- City University of New York (CUNY) (134)
- Claremont Colleges (127)
- Colby College (127)
- WellBeing International (123)
- The Texas Medical Center Library (116)
- Portland State University (112)
- International Centre of Insect Physiology and Ecology (111)
- Department of Primary Industries and Regional Development, Western Australia (109)
- Michigan Technological University (102)
- SIT Graduate Institute/SIT Study Abroad (102)
- The University of Southern Mississippi (92)
- University of Texas Rio Grande Valley (91)
- University of Nevada, Las Vegas (90)
- University of Northern Iowa (89)
- Nova Southeastern University (87)
- University of Montana (87)
- Louisiana State University (84)
- California Polytechnic State University, San Luis Obispo (76)
- Stephen F. Austin State University (74)
- Wright State University (72)
- Keyword
-
- Climate change (186)
- Conservation (162)
- Biodiversity (139)
- Ecology (130)
- Agriculture (121)
-
- Remote sensing (110)
- Agricultural newspapers (105)
- American newspapers (105)
- Central Maine (105)
- Maine history (105)
- Popular literature (105)
- Biogeography (102)
- Evolution (94)
- Mongolia (94)
- 19th century newspapers (92)
- GIS (90)
- Humans (89)
- Sustainability (85)
- United States (81)
- Taxonomy (80)
- Western Australia (80)
- Environment (75)
- Phylogeography (70)
- Climate (65)
- Phylogeny (63)
- Invasive species (59)
- Distribution (58)
- Geography (56)
- Animals (50)
- Population genetics (50)
- Publication Year
- Publication
-
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- Theses and Dissertations (195)
- Faculty Publications (129)
- Electronic Theses and Dissertations (127)
- All Peer-Reviewed Publications (111)
-
- IGC Proceedings (1977-2023) (109)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (107)
- Graduate Theses and Dissertations (106)
- Biology Faculty Publications (101)
- Biological Sciences Faculty Publications (97)
- United States Department of Agriculture Wildlife Services: Staff Publications (95)
- Faculty, Staff and Student Publications (90)
- Independent Study Project (ISP) Collection (78)
- Aliso: A Journal of Systematic and Floristic Botany (76)
- Turkish Journal of Botany (70)
- Harold W. Manter Laboratory of Parasitology: Faculty Publications (69)
- Masters Theses (68)
- Publications and Research (68)
- The Waterville Mail (Waterville, Maine) (67)
- Marine Science Faculty Publications (66)
- Dissertations and Theses (63)
- USF Tampa Graduate Theses and Dissertations (62)
- Department of Agronomy and Horticulture: Faculty Publications (58)
- Insecta Mundi (57)
- 'Atiqot (53)
- Master's Theses (52)
- Honors Theses (51)
- School of Biological Sciences: Faculty Publications (50)
- Turkish Journal of Zoology (50)
- Turkish Journal of Agriculture and Forestry (46)
- Publication Type
- File Type
Articles 7741 - 7770 of 8613
Full-Text Articles in Entire DC Network
Isopods Of The Genus Excorallana Stebbing, 1904 (Crustacea, Isopoda, Corallanidae) From The East Coast Of Mexico With A Supplemental Description Of E. Subtilis, Antonio Cantu-Diaz Barriga, Elva Escobar Briones
Isopods Of The Genus Excorallana Stebbing, 1904 (Crustacea, Isopoda, Corallanidae) From The East Coast Of Mexico With A Supplemental Description Of E. Subtilis, Antonio Cantu-Diaz Barriga, Elva Escobar Briones
Gulf and Caribbean Research
Eight species of Excorallana, E. acuticauda, E. delaneyi, E. oculata, E. sexticornis, E. subtilis, E. tricornis tricornis, E. warmingii, and Excorallana sp. are recorded for the eastern coast of Mexico. The range of E. delaneyi is extended south in the Gulf of Mexico. Excorallana oculata and E. subtiIis are reported for the first time in the Gulf. Based on specimens from the east coast of Mexico, a supplemental description of E. subtilis is presented and its taxonomy to other closely related species discussed. A key is provided to the adult males of …
Use Of Landsat Imagery And Geographical Information Systems In The Assessment Of Rangeland Cover And Wildlife Habitat, Mary Hunnicutt
Use Of Landsat Imagery And Geographical Information Systems In The Assessment Of Rangeland Cover And Wildlife Habitat, Mary Hunnicutt
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The first chapter of this thesis reviews applications of satellite remote sensing and geographical information systems (GIS) in wildlife studies. The simpler uses of remote sensing are for habitat mapping, often using satellite imagery classified for other natural resources. More sophisticated applications incorporate remotely sensed data into a GIS for the digital manipulation of data planes. The most advanced applications are those which use remote sensing and GIS in models predicting habitat quality or population levels.
The second chapter reports how brightness values of six Landsat Thematic Mapper (TM) bands were used in multiple linear regressions to predict percent cover …
River Channel Stability And The Implications For Fish Habitat, John T. Beebe
River Channel Stability And The Implications For Fish Habitat, John T. Beebe
Theses and Dissertations (Comprehensive)
The purpose of this project was to investigate various aspects of river channel stability as they relate to fish habitat. Two headwater creeks of the Credit River system, Black and Silver Creeks, and their confluent stream, the West Credit River in Southern Ontario were used in the study. Thirty-five cross-sections were established and revisited during four flow regimes, summer base flow, fall secondary peak flow, spring melt-high flow and post-spring high flow. Measurements of width, depth and temperature were taken at these times. Water samples were taken for determination of suspended sediment concentration. Channel stability was investigated in relation to …
Disruption Of Glossina Morsitans Morsitans (Diptera: Glossinidae) Eclosion Behaviour: A Novel Method For Evaluating The Action Of Neurotoxic Agents, J. Ždárek, D. L. Denlinger
Disruption Of Glossina Morsitans Morsitans (Diptera: Glossinidae) Eclosion Behaviour: A Novel Method For Evaluating The Action Of Neurotoxic Agents, J. Ždárek, D. L. Denlinger
All Peer-Reviewed Publications
As the tsetse fly, Glossina morsitans morsitans Westwood extricates itself from the puparium and moves upward through the soil the ptilinum expands and contracts rhythmically and thus generates a stereotypic behavioural pattern that persists for up to 10 h if the tsetse fly remains confined. The response, which is easily recorded tensometrically from the movements of the ptilinum, can be exploited as a tool for evaluating the behavioral response of tsetse flies to various neurotoxic agents. The behavioural assay proves useful in providing precise information about the latency of the response and lethal time, and can suggest likely modes of …
Factors Affecting Seasonal Dispersal Of The Tsetse Flies Glossina Pallidipes And G. Longipennis (Diptera: Glossinidae) At Nguruman, South-West Kenya, R. Brightwell, R. D. Dransfield, B. G. Williams
Factors Affecting Seasonal Dispersal Of The Tsetse Flies Glossina Pallidipes And G. Longipennis (Diptera: Glossinidae) At Nguruman, South-West Kenya, R. Brightwell, R. D. Dransfield, B. G. Williams
All Peer-Reviewed Publications
Seasonal changes in the distribution of the tsetse flies, Glossina pallidipes Austen and G. longipennis Corti, along a transect from riverine thickets out into open plains were monitored along with tsetse density, climatic factors, vegetation and host abundance. Dispersal of tsetse into open country was quantified using the mean spread. During and after the rains both species extended their distribution out into open country up to at least 3.5 km from riverine thicket areas. The mean spread of G. longipennis was greater than that of G. pallidipes. The spread of males and females was very similar, as was the spread …
The Effect Of Canteen Menu On Nutritional Knowledge, Attitudes And Behaviour Of Year Five Students, Sharon Mcbride
The Effect Of Canteen Menu On Nutritional Knowledge, Attitudes And Behaviour Of Year Five Students, Sharon Mcbride
Theses: Doctorates and Masters
Eating habits are learned during childhood, and patterns of behaviour established in childhood have important health ramifications throughout life. Over half of all deaths in Australia are linked to diet with over-consumption of saturated fat, sugar and salt, and lack of fibre being identified as particular problem areas. Nutrition education is an important component of primary health education curricula, and yet school canteens, and integral part of the school environment, do not necessarily offer healthy food choices that support nutrition instruction in the classroom. This study investigated the effect of canteen menu on student knowledge and attitudes toward nutrition and …
Aspects Of Air Pollution, And Its Effect On The Respiratory System, Jennifer Randall
Aspects Of Air Pollution, And Its Effect On The Respiratory System, Jennifer Randall
Presidential Scholars Theses (1990 – 2006)
This report centers around one of today's most prominent environmental issues-- air pollution. First, the major pollutants are defined and explained. Chloroflourocarbons, ozone, carbon monoxide, carbon dioxide, methane, sulfur dioxide, nitrogen oxides, and suspended particulate matter all receive attention.
Next, air pollution's effect on the Earth is explained. The "greenhouse effect", global warming, acid rain, and ozone depletion all have an enormous impact on Earth's climate and atmosphere.
The report proceeds on to discuss options for controlling and so lving the air pollution problem. Se+ective catalytic reduction, noncatalytic reduction, tradeable permits-- these three processes are examples of large scale attempts …
Natural History In Iowa: The Early Phases, David C. Glenn-Lewin, Thomas R. Rosburg
Natural History In Iowa: The Early Phases, David C. Glenn-Lewin, Thomas R. Rosburg
Journal of the Iowa Academy of Science: JIAS
Natural history in Iowa prior to the 20th Century can be conveniently arranged into 4 phases: Native American, before the Louisiana Purchase, between the Louisiana Purchase and about 1850, and after 1850. Native American natural history was extensive and had a distinctly spiritual character. Natural history was a component of European exploration up to the time of the Louisiana Purchase, but was not treated as a separate endeavor; the evidence from this period comes from the journals and diaries of early exploreres, fur traders and the like. Between the Louisiana Purchase and about 1850, natural history changed from its status …
How Do Resources Influence Time Of Calving: “Why We Calve Early”, John N. Price
How Do Resources Influence Time Of Calving: “Why We Calve Early”, John N. Price
Range Beef Cow Symposium
When I was asked to give this presentation on “WHY WE CALVE EARLY” I said this is easy “because it works for us.” Now that I sit down and think about why it works I find myself going over five generations of inspirations, frustrations, work, sleepless nights, and determination to understand why “IT WORKS FOR US”.
The Price Ranch is a family operation that has been in the family for five generations. The present day Prices consist of my father Richard Price, stepmother Lylamae, wife and best friend Pam, three children John R., Shannon and Angela and two excellent full …
Santa Clara Magazine, Volume 34 Number 1, Fall 1991, Santa Clara University
Santa Clara Magazine, Volume 34 Number 1, Fall 1991, Santa Clara University
Santa Clara Magazine
12 - FROM SLAVERY TO SAINTHOOD? With the impending canonization of Pierre Toussaint, many feel the Church is finally beginning to recognize the contributions of its African-American worshippers. By Kathy Daile-Molle '85
18 - AND THEY SAID IT WOULDN'T LAST 4-Remembering Dave 2 Letters to the Editor 4 Santa Clara Today 10 Santa Clara Sports 32 Alumni Class Notes 42 University Calendar Tales of freshman roommates who beat the odds and stayed friends. By Kathryn Bold '81
22 - HISPANIC CALIFORNIANS AND CATHOLIC HIGHER EDUCATION The second of a two-part article featuring the diaries of a Hispanic student who attended …
Ua66/6/2 Bionews From The Hill, Wku Biology
Ua66/6/2 Bionews From The Hill, Wku Biology
WKU Administration Documents
Newsletter created by and about WKU Biology highlighting the activities of faculty, students and alumni.
Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University
Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University
Santa Clara Magazine
12 - ABORTION : NO SIMPLE ANSWERS Jesuit theologian Ted Mackin examines pro-life and pro-choice positions and reports that neither side is addressing the issue with total honesty. By Theodore J. Mackin, S.J.
16 - STAY AT HOME MOMS Alumnae discuss why they decided to devote all their time and attention to their families. By Michelle Burget Fletcher '78, Brigid Modena Benham '81, and Anne Penoyer King '69
20 - SCU's WINE FAMILIES Northern California's vineyards are fertile ground for Santa Clara graduates. By Rosina Wilson
28 - WORKING THE SUICIDE HOTLINE Within these walls, no secret is too terrible …
Review Of Les Nématodes Syphaciinae, Parasites De Rongeurs Et De Lagomorphes. Taxonomie, Zoogéographie, Évolution By Jean-Pierre Hugot. Zoologie, Tome 141, Mémoires Du Muséum National D'Histoire Naturelle, Paris, 1988. E. J. Brill, Leiden, The Netherlands, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Review of Les Nématodes Syphaciinae, Parasites de Rongeurs et de Lagomorphes. Taxonomie, Zoogéographie, Évolution by Jean-Pierre Hugot. Zoologie, Tome 141, Mémoires du Muséum National d'Histoire Naturelle, Paris. 1988. 148 p. + Appendix. Available from E. J. Brill, Leiden, The Netherlands.
Possibilities For A Common Fisheries Development And Management Policy For The Organization Of Eastern Caribbean States (O.E.C.S.), Daven C. Joseph
Possibilities For A Common Fisheries Development And Management Policy For The Organization Of Eastern Caribbean States (O.E.C.S.), Daven C. Joseph
Marine Affairs Theses and Major Papers
The fisheries resources within the EEZs of countries in the Organization of Eastern Caribbean States is not being exploited at their maximum sustainable yield. Fisheries development has however been hampered by a history of these states, little or no sectoral development planning. If member states are to realize any increased socio-economic growth in the fisheries sector, it is imperative that a common fisheries management and development strategy be implemented by these states, in an effort to rationalize the use of scarce financial and technical resources. Such a strategy would involve the pursuance of common goals and objectives and the provision …
"Introduction" (To Alfred Russel Wallace; An Anthology Of His Shorter Writings), Charles H. Smith
"Introduction" (To Alfred Russel Wallace; An Anthology Of His Shorter Writings), Charles H. Smith
DLPS Faculty Publications
No abstract provided.
The Flora Of The Bonin (Ogasawara) Islands, Mikio Ono
The Flora Of The Bonin (Ogasawara) Islands, Mikio Ono
Aliso: A Journal of Systematic and Floristic Botany
The Bonin (Ogasawara) Islands are an oceanic island group more than 1000 km from the Japanese Archipelago. As in other isolated islands of the Pacific Ocean, their flora is rich in endemic taxa. These endemics are mostly either schizo- or aneuendemics and have chromosome numbers that are either identical to or slightly different from those of their adjacent relatives. Three genera, Callicarpa (Verbenaceae), Crepidiastrum (Compositae), and Pittosporum (Pittosporaceae), are discussed as examples of adaptive radiation within the Bonin Islands. These genera are dispersed by birds, which swallow the seeds and later deposit them in new areas. Like plants with similar …
An Essay: Geoedaphics And Island Biogeography For Vascular Plants, A. R. Kruckerberg
An Essay: Geoedaphics And Island Biogeography For Vascular Plants, A. R. Kruckerberg
Aliso: A Journal of Systematic and Floristic Botany
"Islands" of discontinuity in the distribution of plants are common in mainland (continental) regions. Such discontinuities should be amenable to testing the tenets of MacArthur and Wilson's island biogeography theory. Mainland gaps are often the result of discontinuities in various geological attributes-the geoedaphic syndrome of topography, lithology and soils. To discover ifgeoedaphically caused patterns of isolation are congruent with island biogeography theory, the effects of topographic discontinuity on plant distributions are examined first. Then a similar inspection is made of discontinuities in parent materials and soils. Parallels as well as differences are detected, indicating that island biogeography theory may be …
Reproductive Insularity In A Migratory Sparrow: A Field Study Of Lincoln's Sparrow Populations In Southern California, Cin Greyhaven
Reproductive Insularity In A Migratory Sparrow: A Field Study Of Lincoln's Sparrow Populations In Southern California, Cin Greyhaven
Theses Digitization Project
Melospiza lincolnii -- San Bernardino and San Jacinto mountain ranges -- migrational return -- Dispersal - Morphometric analysis.
Upholstered Household Furniture In The United States: A Survey Of Current Ownership And Purchasing Plans, Steven H. Bullard, Max L. Doolittle
Upholstered Household Furniture In The United States: A Survey Of Current Ownership And Purchasing Plans, Steven H. Bullard, Max L. Doolittle
Faculty Publications
This report presents highlights of the results of a telephone survey of U.S. households concerning their ownership, purchasing plans, and preferences regarding upholstered household furniture. The survey was conducted in October and November 1989, by the Survey Research Unit of the Social Science Research Center of the Mississippi Agricultural and Forestry Experiment Station. The SUl'Vey also included Canadian households, and subsequent reports will present results for Canada as well as statistical analyses of specific results for both countries. The sUl'vey was intended to help identify market potential for various items of upholstered household furniture, and the results are therefore not …
The Upholstered, Wood Household Furniture Industry In North America: A Spatial Equilibrium Analysis, Eric J. Todd, Steven H. Bullard
The Upholstered, Wood Household Furniture Industry In North America: A Spatial Equilibrium Analysis, Eric J. Todd, Steven H. Bullard
Faculty Publications
Upholstered, wood household furniture production has become an increasingly important part of total furniture production in the United States. From 1982 to 1987, employment in the upholstered furniture industry grew 16 percent, and in 1987, the industry's 82,100 employees represented about 30 percent of U.S. household furniture indush-y employment (USDC Bureau of the Census 1990). Over the same 5-year period, value added for the upholstered furniture industry increased by 52 percent to more than $2.6 billion.
A Least Cost Analysis Of Transition In North America’S Upholstered, Wood Household Furniture Industry, Eric J. Todd, Steven H. Bullard
A Least Cost Analysis Of Transition In North America’S Upholstered, Wood Household Furniture Industry, Eric J. Todd, Steven H. Bullard
Faculty Publications
Factors influencing the location of the North American upholstered, wood household furniture industry are undergoing many changes. This paper presents a least cost linear programming approach to determining optimal furniture production and shipment patterns, The results suggest that Mexico and the 'East South Central region of the U.S. are well-poised to increase their shares of the North American market as consumption patterns and factors of production change in the next decade.
Site Index Curves For Loblolly And Slash Pine Plantations In The Post Oak Belt Of East Texas, W. D. Hacker, M. Victor Bilan
Site Index Curves For Loblolly And Slash Pine Plantations In The Post Oak Belt Of East Texas, W. D. Hacker, M. Victor Bilan
Faculty Publications
Stem analysis data collected from dominant and codominant trees growing in loblolly (Pinus taeda L.) and slash pine (Pinus elliottii Engelm.) plantations were used to develop site index curves. These data were collected from loblolly and slash pine plantations growing in the Post Oak Belt of East Texas. The height prediction curves were based on the Chapman-Richards function and will provide an indication of site productivity based on plantation age. South. J. Appl. For. 15(2):97-100.
Breeding Biology Of The Black Storm-Petrel At Islas Los Coronados, Baja California, Mexico, William T. Everett
Breeding Biology Of The Black Storm-Petrel At Islas Los Coronados, Baja California, Mexico, William T. Everett
Theses
Twenty-nine visits to Middle Rock, Islas Los Coranados, were made between March 1989 and September 1990, including 10 overnight visits. Breeding phenology was studied, including timing of colony attendance by adult birds, timing of egg laying, hatching, and fledging. Over 200 birds were banded to determine nest site tenacity and pair bond retention. Details were recorded on nest site selection, interspecific competition, breeding success, chick growth and plumage development, adult morphometrics, molt, food items, vocalizations, and ectoparasites.
The Phytogeography And Ecology Of The Coastal Atacama And Peruvian Deserts, P. W. Rundel, M. O. Dillon, B. Palma, H. A. Mooney, S. L. Gulmon, J. R. Ehleringer
The Phytogeography And Ecology Of The Coastal Atacama And Peruvian Deserts, P. W. Rundel, M. O. Dillon, B. Palma, H. A. Mooney, S. L. Gulmon, J. R. Ehleringer
Aliso: A Journal of Systematic and Floristic Botany
The Atacama and Peruvian Deserts form a continuous belt for more than 3500 km along the western escarpment of the Andes from northern Peru to northernmost Chile. These arid environments are due to a climatic regime dominated by the cool, north-flowing Humboldt (Peruvian) Current. Atmospheric conditions influenced by a stable, subtropical anticyclone result in a mild, uniform coastal climate nearly devoid of rain, but with the regular formation of thick stratus clouds below I 000 m during the winter months. Where coastal topography is low and flat, the clouds dissipate inward over broad areas with little biological impact. However, where …
The Diet And Feeding Habits Of The Southern Stingray, Dasyatis Americana, In Tropical Shallow Marine Habitats, David S. Gilliam
The Diet And Feeding Habits Of The Southern Stingray, Dasyatis Americana, In Tropical Shallow Marine Habitats, David S. Gilliam
HCNSO Student Theses and Dissertations
The diet and feeding habits of the southern stingray, Dasyatis americana, were investigated through aerial surveys, land-based observations, and quantitative analysis of stomach contents. The field research was conducted in the Exuma Cays Land and Sea Park, central Bahamas. Systematic aerial surveys and the land-based observations were made to determine population density and feeding periodicity in terms of time or tidal phase. In August, 1989, systematic surveys were flown over two cays in the Park; a 12 km2 area around Waderick Wells Cay and a 21km2 area around Shroud Cay. Both survey areas were flown three times …
Electrophoretic Study Of Enzymes From A Glossina Fuscipes Fuscipes Newstead Population From Western Kenya, G. F. Rajendram
Electrophoretic Study Of Enzymes From A Glossina Fuscipes Fuscipes Newstead Population From Western Kenya, G. F. Rajendram
All Peer-Reviewed Publications
Enzymes were investigated, by electrophoresis, in a population of Glossina fuscipes fuscipes Newstead collected from Rusinga Island in Lake Victoria, Western Kenya. The following enzymes were tested: glucose phosphate isomerase. glucose-6-phosphate dehydrogenase (G6PDH). hexokinase, isocitrate dehydrogenase (IDH), malate-dehydrogenase (MDH), phosphoglucomutase, and xanthine dehydrogenase (XDH). Single monomorphic bands were stained by the following enzymes apparently under the control of single loci: G6PDIL MDH, and XDH. The enzyme IDH showed two bands with very close mobilities and no variation among individuals in the population. Hence IDH was considered as representing a single locus. Glucose phosphate isomerase manifested three alleles and apparently six …
Trap-Catches, Nutritional Condition And The Timing Of Activity Of The Tsetse Fly Glossina Longipennis (Diptera: Glossinidae), Sarah E. Randolph, D. J. Rogers, R. D. Dransfield, R. Brightwell
Trap-Catches, Nutritional Condition And The Timing Of Activity Of The Tsetse Fly Glossina Longipennis (Diptera: Glossinidae), Sarah E. Randolph, D. J. Rogers, R. D. Dransfield, R. Brightwell
All Peer-Reviewed Publications
Samples of Glossina longipennis Corti, taken over four days in traps (baited with acetone, cow urine and octenol) at half-hourly intervals during their restricted activity periods at dusk and dawn, were analysed for their nutritional condition. For both sexes, trap catches were highest at the end of dusk, between 19.00 and 19.30 h, associated with a significant increase in numbers with the low haematin content characteristic of flies estimated to have fed more than 60 hours previously. Also, the mean fat content of these flies was significantly lower than that of those trapped earlier. There was considerable day-to-day variation in …
Biota Of Magazine Mountain (I): An Outline Of The Natural History Of Magazine Mountain, Robert T. Allen
Biota Of Magazine Mountain (I): An Outline Of The Natural History Of Magazine Mountain, Robert T. Allen
Journal of the Arkansas Academy of Science
One plant and five invertebrate species are thought to be endemic to Magazine Mountain, Logan County, Arkansas. The mountain is the highest point in the Interior Highlands reaching 2,753 feet. Previous studies have recorded over 650 species of plants including (or in addition to) 27 fern species. The animal fauna is less well known. It is suggested that an inventory of the biota of the mountain could be completed within the foreseeable future. It is further suggested that such an inventory would be useful in answering questions relevant to understanding the evolution and biogeography of selected taxa in North America. …
Introgression Of Coyote Mitochondrial Dna Into Sympatric North American Gray Wolf Populations, Niles Lehman, Andrew Eisenhawer, Kimberly Hansen, L. David Mech, Rolf O. Peterson, Peter J. P. Gogan, Robert K. Wayne
Introgression Of Coyote Mitochondrial Dna Into Sympatric North American Gray Wolf Populations, Niles Lehman, Andrew Eisenhawer, Kimberly Hansen, L. David Mech, Rolf O. Peterson, Peter J. P. Gogan, Robert K. Wayne
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Mitochondrial DNA (mtDNA) genotypes of gray wolves and coyotes from localities throughout North America were determined using restriction fragment length polymorphisms. Of the 13 genotypes found among the wolves, 7 are clearly of coyote origin, indicating that genetic transfer of coyote mtDNA into wolf populations has occurred through hybridization. The transfer of mtDNA appears unidirectional from coyotes into wolves because no coyotes sampled have a wolf-derived mtDNA genotype. Wolves possessing coyote-derived genotypes are confined to a contiguous geographic region in Minnesota, Ontario, and Quebec, and the frequency of coyote- type mtDNA in these wolf populations is high (> 500%). The …
A Statistical Approach To The Objective Differenciation Of Hirschmanniella Oryzae From H. Belli (Nemata : Pratylenchidae), Renaud Fortuner, Armand R. Maggenti
A Statistical Approach To The Objective Differenciation Of Hirschmanniella Oryzae From H. Belli (Nemata : Pratylenchidae), Renaud Fortuner, Armand R. Maggenti
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Alternate English title: A Statistical Approach to the Objective Differentiation of Hirschmanniella oryzae from H. belli (Nemata : Pratylenchidae)
English language abstract: California populations attributed to Hirschmanniella belli were compared i) to paratypes of this species, ii) to topotypes of H. oryzae, and iii) to other populations of the same genus from other parts of the world. Comparisons were made using discriminant function analyses. Some small differences between California populations and paratypes of H. belli were attributed to artifacts caused by the long storage of these paratypes. Several characters were selected that were not affected by these artifacts, but …