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2000

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Articles 5911 - 5940 of 8031

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A Record Of Tropical Kingbird (Tyrannus Melancholicus) In Florida, Lee F. Snyder, Larry A. Hopkins Jan 2000

A Record Of Tropical Kingbird (Tyrannus Melancholicus) In Florida, Lee F. Snyder, Larry A. Hopkins

Florida Field Naturalist

No abstract provided.


Foraging Behavior Of Vultures In Central Florida, Eric D. Stolen Jan 2000

Foraging Behavior Of Vultures In Central Florida, Eric D. Stolen

Florida Field Naturalist

No abstract provided.


Discovery, Origin, And Current Distribution Of The Purple Swamphen (Porphyrio Porphyrio) In Florida, Bill Pranty, Kim Schnitzius, Kevin Schnitzius, Helen W. Lovell Jan 2000

Discovery, Origin, And Current Distribution Of The Purple Swamphen (Porphyrio Porphyrio) In Florida, Bill Pranty, Kim Schnitzius, Kevin Schnitzius, Helen W. Lovell

Florida Field Naturalist

No abstract provided.


Community, Winter 2000, Office Of Communications And Marketing, Wright State University Jan 2000

Community, Winter 2000, Office Of Communications And Marketing, Wright State University

Community

Thirty-six page issue of Community which was published periodically from 1996 through 2011. The magazine focused on news and events at Wright State University relating to faculty, staff, alumni, and friends of the university.


Fall Report: August-November 1999, Bill Pranty Jan 2000

Fall Report: August-November 1999, Bill Pranty

Florida Field Naturalist

No abstract provided.


Scanning Behavior By Wintering Northern Mockingbirds, Dirk E. Burhans Jan 2000

Scanning Behavior By Wintering Northern Mockingbirds, Dirk E. Burhans

Florida Field Naturalist

No abstract provided.


First Record Of An Olive-Backed Pipit In California, Phil Capitolo, Will Richardson, Ryan Burnett, Peter Pyle Jan 2000

First Record Of An Olive-Backed Pipit In California, Phil Capitolo, Will Richardson, Ryan Burnett, Peter Pyle

Western Birds

No abstract provided.


Front Matter (Pdf), Western Birds Jan 2000

Front Matter (Pdf), Western Birds

Western Birds

No abstract provided.


Two Subspecies Of Warbling Vireo Differ In Their Responses To Cowbird Eggs, Spencer G. Sealy, Alison J. Banks, Jameson F. Chace Jan 2000

Two Subspecies Of Warbling Vireo Differ In Their Responses To Cowbird Eggs, Spencer G. Sealy, Alison J. Banks, Jameson F. Chace

Western Birds

No abstract provided.


Front Matter (Pdf), Western Birds Jan 2000

Front Matter (Pdf), Western Birds

Western Birds

No abstract provided.


Distribution And Abundance Of Burrowing Owls On The Peninsula And Islands Of Baja California, Eduardo Palacios, Daniel W. Anderson, Eric Mellink, Salvador Gonzalez-Guzman Jan 2000

Distribution And Abundance Of Burrowing Owls On The Peninsula And Islands Of Baja California, Eduardo Palacios, Daniel W. Anderson, Eric Mellink, Salvador Gonzalez-Guzman

Western Birds

No abstract provided.


Featured Photo, Robert A. Hamilton, N. John Schmitt Jan 2000

Featured Photo, Robert A. Hamilton, N. John Schmitt

Western Birds

No abstract provided.


Featured Photo, Kimball L. Garrett Jan 2000

Featured Photo, Kimball L. Garrett

Western Birds

No abstract provided.


The Recent Breeding Of California And Laughing Gulls At The Salton Sea, California, Kathy C. Molina Jan 2000

The Recent Breeding Of California And Laughing Gulls At The Salton Sea, California, Kathy C. Molina

Western Birds

No abstract provided.


The Status Of Harlan's Hawk In Southern California, Charles T. Collins, Peter H. Bloom Jan 2000

The Status Of Harlan's Hawk In Southern California, Charles T. Collins, Peter H. Bloom

Western Birds

No abstract provided.


Featured Photo, Matt Heindel, Steve N. G. Howell Jan 2000

Featured Photo, Matt Heindel, Steve N. G. Howell

Western Birds

No abstract provided.


Colorado Breeding Breeding Bird Atlas, Bruce Webb Jan 2000

Colorado Breeding Breeding Bird Atlas, Bruce Webb

Western Birds

No abstract provided.


Nesting Of Ashy Storm-Petrels And Cassin's Auklets In Monterey County, California, Gerard J. Mcchesney, Harry R. Carter, Michael W. Parker Jan 2000

Nesting Of Ashy Storm-Petrels And Cassin's Auklets In Monterey County, California, Gerard J. Mcchesney, Harry R. Carter, Michael W. Parker

Western Birds

No abstract provided.


Owls: A Guide To Owls Of The World, Steve N. Howell Jan 2000

Owls: A Guide To Owls Of The World, Steve N. Howell

Western Birds

No abstract provided.


28_1_Frinsidecover.Pdf, Marine Ornithology Jan 2000

28_1_Frinsidecover.Pdf, Marine Ornithology

Marine Ornithology

No abstract provided.


28_2_Bkcontentscover.Pdf, Marine Ornithology Jan 2000

28_2_Bkcontentscover.Pdf, Marine Ornithology

Marine Ornithology

No abstract provided.


Bachelor Of Science In Psychology, Nova Southeastern University Jan 2000

Bachelor Of Science In Psychology, Nova Southeastern University

CPS Undergraduate Course Catalogs

No abstract provided.


Providence: Studies In Western Civilization Fall/Winter 1999, Providence College Jan 2000

Providence: Studies In Western Civilization Fall/Winter 1999, Providence College

Providence: Studies in Western Civilization

No abstract provided.


Fetal Pig: The High School Dissection Experience, Gracia Barr, Harold A. Herzog Jan 2000

Fetal Pig: The High School Dissection Experience, Gracia Barr, Harold A. Herzog

Education Collection

Using qualitative methods, we observed a series of fetal pig dissection sessions in a high school biology course and interviewed 17 students in the class. The students' responses to dissection varied considerably. Most felt that dissection was a positive experience, but a substantial minority viewed it primarily in negative terms. Almost all the students had some ambivalence about aspects of the fetal pig lab and believed that alternatives should be provided for students who object to the practice. We argue that dissection remains a viable educational tool but should be an optional rather than compulsory component of the curriculum.


Statement Of The Position Of The Iowa Academy Of Science On The Validity Of Evolutionary Science And On The Status Of Creationism As A Scientific Explanation Of Natural Phenomena Jan 2000

Statement Of The Position Of The Iowa Academy Of Science On The Validity Of Evolutionary Science And On The Status Of Creationism As A Scientific Explanation Of Natural Phenomena

Journal of the Iowa Academy of Science: JIAS

Current attempts to introduce "scientific creationism", "creationism", or the Judeo-Christian biblical account of creation, as well as to reframe the discussion around terms such as "abrupt appearance theory", "intelligent design theory", or other disguised forms of creationism into the science classroom along with or instead of evolutionary science are strongly opposed by The Iowa Academy of Science on the grounds that creationism, in whatever form, is a religious doctrine and not science.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2000

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Interactive Effects Of Anthropogenic, Environmental, And Biotic Stressors On Multiple Endpoints In Hyla Chrysoscelis, Carol A. Britson, Stephen T. Threlkeld Jan 2000

Interactive Effects Of Anthropogenic, Environmental, And Biotic Stressors On Multiple Endpoints In Hyla Chrysoscelis, Carol A. Britson, Stephen T. Threlkeld

Journal of the Iowa Academy of Science: JIAS

Multiple stressors have been proposed as causative agents for declining populations and increased incidence of malformations in amphibians although few studies have examined possible interactions among these stressors. We measured interactive effects of UV radiation, three chemicals, and interspecific competition (with Rana 1phenocephala) on multiple endpoints in Hyla chrysoscelis using a center point- and chemical-free control-enhanced 24 factorial design. UV radiation was transmitted or filtered using OP-4 or OP-3 acrylite filters installed above 72, 500-liter mesocosms on 16 May 1997. Methyl mercury, chlorpyrifos, and atrazine were applied at levels of 0, 10, 50, and 100 % of 400 ppb, …


Defining Anuran Malformations In The Context Of A Developmental Problem, Carol U. Meteyer, Rebecca A. Cole, Kathryn A. Converse, Douglas E. Docherty, Mark Wolcott, Judy C. Helgen, Richard Levey, Laura Eaton-Poole, James G. Burkhart Jan 2000

Defining Anuran Malformations In The Context Of A Developmental Problem, Carol U. Meteyer, Rebecca A. Cole, Kathryn A. Converse, Douglas E. Docherty, Mark Wolcott, Judy C. Helgen, Richard Levey, Laura Eaton-Poole, James G. Burkhart

Journal of the Iowa Academy of Science: JIAS

This paper summarizes terminology and general concepts involved in animal development for the purpose of providing background for the study and understanding of frog malformations. The results of our radiographic investigation of rear limb malformations in Rana pipiens provide evidence that frog malformations are the product of early developmental errors. Although bacteria, parasites and viruses were identified in these metamorphosed frogs, the relevant window to look for the teratogenic affect of these agents is in the early tadpole stage during limb development. As a result, our microbiological findings must be regarded as inconclusive relative to determining their contribution to malformations …


A Relationship Between Trematode Metacercariae And Bullfrog Limb Abnormalities, James L. Christiansen, Heather Feltman Jan 2000

A Relationship Between Trematode Metacercariae And Bullfrog Limb Abnormalities, James L. Christiansen, Heather Feltman

Journal of the Iowa Academy of Science: JIAS

This study is the first report of statistically significant relationships between limb abnormalities and trematode metacercariae in natural populations of frogs. We examined only parasite associations and did not investigate numerous potential pollutants that have been suggested by others to be associated with frog limb abnormalities. Rana catesbeiana of varying ages with a variety of limb abnormalities were found during the flood of 1993. By June 1994, the receding flood waters had left four pools, each with newly metamorphosing bullfrogs. Only one of the pools contained abnormal individuals and histological examination revealed significantly greater prevalence of trematode metacercarial infection in …


Morphological Abnormalities In Illinois Cricket Frogs, Acris Crepitans, 1968-71, Robert H. Gray Jan 2000

Morphological Abnormalities In Illinois Cricket Frogs, Acris Crepitans, 1968-71, Robert H. Gray

Journal of the Iowa Academy of Science: JIAS

Reports of malformed amphibians have been increasing, including external deformities such as missing or extra arms and legs, missing eyes and mandibles, and internal abnormalities involving the bladder, digestive system, and testes. Natural phenomena such as limb amputations during predation attempts by other animals, parasitism, xenobiotic chemicals (herbicides, insecticides, fertilizers and others), and UV-B or other radiation (either directly or indirectly by triggering production of toxicants from nontoxic chemicals) have all been linked to amphibian abnormalities. From 1968-71, I studied the natural history, effective breeding size, and seasonal, annual, and geographic variation in color morph frequencies of cricket frogs (Acris …