Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (3640)
- Physical Sciences and Mathematics (1574)
- Social and Behavioral Sciences (1138)
- Ecology and Evolutionary Biology (1103)
- Environmental Sciences (1048)
-
- Medicine and Health Sciences (916)
- Biology (890)
- Animal Sciences (787)
- Plant Sciences (626)
- Public Health (478)
- Biodiversity (378)
- Terrestrial and Aquatic Ecology (376)
- Education (370)
- Zoology (339)
- Earth Sciences (333)
- Natural Resources and Conservation (316)
- Entomology (291)
- Arts and Humanities (290)
- Botany (262)
- Marine Biology (251)
- Forest Sciences (208)
- Oceanography and Atmospheric Sciences and Meteorology (199)
- Population Biology (195)
- Geography (193)
- Sociology (186)
- Engineering (174)
- Anthropology (172)
- Natural Resources Management and Policy (166)
- Epidemiology (163)
- Public Affairs, Public Policy and Public Administration (162)
- Institution
-
- University of South Florida (1330)
- University of Nebraska - Lincoln (1178)
- Brigham Young University (422)
- Utah State University (413)
- University of Montana (295)
-
- Louisiana State University (269)
- University of Plymouth (184)
- Nova Southeastern University (183)
- UAlaska System (163)
- University of Kentucky (160)
- The University of Southern Mississippi (151)
- University of Nevada, Las Vegas (146)
- University of Arkansas, Fayetteville (145)
- Michigan Technological University (142)
- University of Northern Iowa (136)
- TÜBİTAK (129)
- Portland State University (124)
- University of New Hampshire (119)
- University of Rhode Island (119)
- Old Dominion University (110)
- University of New Mexico (107)
- University of North Dakota (104)
- Yale University (104)
- West Virginia University (102)
- California Polytechnic State University, San Luis Obispo (86)
- City University of New York (CUNY) (86)
- Eastern Washington University (82)
- University of Central Florida (82)
- Clemson University (78)
- Mississippi State University (76)
- Keyword
-
- Ecology (229)
- Biology (103)
- Climate change (99)
- Conservation (85)
- Biodiversity (75)
-
- COVID-19 (72)
- Humans (72)
- Invasive species (56)
- Diet (54)
- Diversity (52)
- GIS (50)
- Remote sensing (50)
- Habitat (46)
- Botany (45)
- Utah (45)
- Agriculture (44)
- Estuaries (43)
- Public health (43)
- Biogeography (41)
- Biological oceanography (41)
- Epidemiology (40)
- Predation (40)
- Female (38)
- Oceans (38)
- Chemical oceanography (37)
- Currents (37)
- Meteorology (37)
- United States (37)
- Environment (36)
- Marine research (36)
- Publication Year
- Publication
-
- Theses and Dissertations (303)
- The Auk (219)
- Faculty Publications (205)
- Electronic Theses and Dissertations (186)
- Wilson Bulletin (174)
-
- Condor (170)
- Great Basin Naturalist (164)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (147)
- Graduate Student Theses, Dissertations, & Professional Papers (145)
- United States Department of Agriculture Wildlife Services: Staff Publications (123)
- Undergraduate Student Symposium (111)
- Masters Theses (100)
- USF Tampa Graduate Theses and Dissertations (100)
- Western North American Naturalist (99)
- Master's Theses (91)
- School of Biological and Marine Sciences (82)
- Turkish Journal of Zoology (78)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (76)
- Proceedings of the Iowa Academy of Science (75)
- Biological Sciences Faculty Publications (74)
- The Prairie Naturalist (72)
- Journal of the Arkansas Academy of Science (69)
- Open Access Dissertations (67)
- Graduate Theses and Dissertations (64)
- United States Geological Survey, Northern Prairie Wildlife Research Center: Publications (64)
- LSU Historical Dissertations and Theses (63)
- Dissertations and Theses (62)
- The Great Lakes Entomologist (62)
- Wader Study Group Bulletin (60)
- Ecological Studies of Wolves on Isle Royale (59)
- Publication Type
- File Type
Articles 1321 - 1350 of 11319
Full-Text Articles in Entire DC Network
Morphometric-Based Sexual Determination Of Bananaquits (Coereba Flaveola), Brent D. Bibles, Clint W. Boal
Morphometric-Based Sexual Determination Of Bananaquits (Coereba Flaveola), Brent D. Bibles, Clint W. Boal
Ornitología Neotropical
No abstract provided.
The Breeding Of The Henna-Hooded Foliage-Gleaner (Hylocryptus Erythrocephalus), With Notes On Conservation Concerns, Eliot T. Miller, Harold F. Greeney, Isaac Lichter-Marck, Eli Lichter-Marck, Leonidas E. Cabrera F.
The Breeding Of The Henna-Hooded Foliage-Gleaner (Hylocryptus Erythrocephalus), With Notes On Conservation Concerns, Eliot T. Miller, Harold F. Greeney, Isaac Lichter-Marck, Eli Lichter-Marck, Leonidas E. Cabrera F.
Ornitología Neotropical
No abstract provided.
Breeding Biology Of The Stripe-Tailed Yellow-Finch (Sicalis Citrina) In Central Brazilian Cerrado, Daniel Tourem Gressler, Miguel Ângelo Marini
Breeding Biology Of The Stripe-Tailed Yellow-Finch (Sicalis Citrina) In Central Brazilian Cerrado, Daniel Tourem Gressler, Miguel Ângelo Marini
Ornitología Neotropical
No abstract provided.
Bird Community Composition Of Centla Marshes Biosphere Reserve, Tabasco, Mexico, Diego Santiago-Alarcon, Stefan Louis Arriaga-Weiss, Oscar Escobar
Bird Community Composition Of Centla Marshes Biosphere Reserve, Tabasco, Mexico, Diego Santiago-Alarcon, Stefan Louis Arriaga-Weiss, Oscar Escobar
Ornitología Neotropical
No abstract provided.
Foraging Behavior Of Plain-Mantled Tit-Spinetail (Leptasthenura Aegithaloides) In Semiarid Matorral, North-Central Chile, Andrew Engilis Jr., Douglas A. Kelt
Foraging Behavior Of Plain-Mantled Tit-Spinetail (Leptasthenura Aegithaloides) In Semiarid Matorral, North-Central Chile, Andrew Engilis Jr., Douglas A. Kelt
Ornitología Neotropical
No abstract provided.
Some Aspects Of The Breeding Biology Of Royal (Thalasseus Maximus) And Cayenne Terns (T. Sandvicensis Eurygnathus) On Isla Verde, Uruguay, Javier Lenzi, Sebastián Jiménez, Diego Caballero-Sadi, Matilde Alfaro, Paula Laporta
Some Aspects Of The Breeding Biology Of Royal (Thalasseus Maximus) And Cayenne Terns (T. Sandvicensis Eurygnathus) On Isla Verde, Uruguay, Javier Lenzi, Sebastián Jiménez, Diego Caballero-Sadi, Matilde Alfaro, Paula Laporta
Ornitología Neotropical
No abstract provided.
Diet Selection Of Sanderlings (Calidris Alba) In Isla Guamblin National Park In The Chilean Fjords, Macarena Castro, Cristian G. Suazo, Eduardo Quiroga, Luisa Baessolo, Aldo M. Arriagada, Gerson D. Santos-Pavletic
Diet Selection Of Sanderlings (Calidris Alba) In Isla Guamblin National Park In The Chilean Fjords, Macarena Castro, Cristian G. Suazo, Eduardo Quiroga, Luisa Baessolo, Aldo M. Arriagada, Gerson D. Santos-Pavletic
Ornitología Neotropical
No abstract provided.
Annual Variation Of Abundance And Composition In Forest Bird Assemblages On Navarino Island, Cape Horn Biosphere Reserve, Chile, Silvina Ippi, Christopher B. Anderson, Ricardo Rozzi, Chris S. Elphick
Annual Variation Of Abundance And Composition In Forest Bird Assemblages On Navarino Island, Cape Horn Biosphere Reserve, Chile, Silvina Ippi, Christopher B. Anderson, Ricardo Rozzi, Chris S. Elphick
Ornitología Neotropical
No abstract provided.
Neotropical Model Systems: Social And Mating Behavior Of Birds, Regina H. Macedo
Neotropical Model Systems: Social And Mating Behavior Of Birds, Regina H. Macedo
Ornitología Neotropical
No abstract provided.
Book Reviews—ReseñAs De Libros—Resenhas De Livros, John G. Blake
Book Reviews—ReseñAs De Libros—Resenhas De Livros, John G. Blake
Ornitología Neotropical
No abstract provided.
Diet Of The Chilean Tinamou (Nothoprocta Perdicaria) In South Central Chile, Daniel Gonzalez-Acuna, Paulo Riquelme Salazar, Jose Cruzatt Molina, Patricio Lopez Sepulveda, Oscar Skewes Ramm, Ricardo A. Figueroa R.
Diet Of The Chilean Tinamou (Nothoprocta Perdicaria) In South Central Chile, Daniel Gonzalez-Acuna, Paulo Riquelme Salazar, Jose Cruzatt Molina, Patricio Lopez Sepulveda, Oscar Skewes Ramm, Ricardo A. Figueroa R.
Ornitología Neotropical
No abstract provided.
Diet Of Nestling Green-And-Gold Tanagers (Tangara Schrankii), With Notes On Nesting Behavior And Seed Dispersal, Kyle S. Van Houtan, Patricia Alvarez-Loayza
Diet Of Nestling Green-And-Gold Tanagers (Tangara Schrankii), With Notes On Nesting Behavior And Seed Dispersal, Kyle S. Van Houtan, Patricia Alvarez-Loayza
Ornitología Neotropical
No abstract provided.
The Importance Of Information On Specimen Labels, Reme Corado
The Importance Of Information On Specimen Labels, Reme Corado
Ornitología Neotropical
No abstract provided.
Videography Of Panama Bird Nests Shows Snakes Are Principal Predators, W. Douglas Robinson, Ghislain Rompre, Tara R. Robinson
Videography Of Panama Bird Nests Shows Snakes Are Principal Predators, W. Douglas Robinson, Ghislain Rompre, Tara R. Robinson
Ornitología Neotropical
No abstract provided.
Techniques For Studying The Behavioral Ecology Of Forestdwelling Tinamous (Tinamidae), Patricia L. R. Brennan
Techniques For Studying The Behavioral Ecology Of Forestdwelling Tinamous (Tinamidae), Patricia L. R. Brennan
Ornitología Neotropical
No abstract provided.
Raptor Migration In The Neotropics: Patterns, Processes, And Consequences, Keith L. Bildstein
Raptor Migration In The Neotropics: Patterns, Processes, And Consequences, Keith L. Bildstein
Ornitología Neotropical
No abstract provided.
Avian Diversity In The Moskitia Region Of Honduras, David L. Anderson, David. A. Wiedenfeld, Marc J. Bechard, Stephen J. Novak
Avian Diversity In The Moskitia Region Of Honduras, David L. Anderson, David. A. Wiedenfeld, Marc J. Bechard, Stephen J. Novak
Ornitología Neotropical
No abstract provided.
The Feeding Ecology And Digestive Tract Morphometry Of Two Sympatric Tinamous Of The High Plateau Of The Bolivian Andes: The Ornate Tinamou (Nothoprocta Ornata) And The Darwinas Nothura (Nothura Darwinii), Alvaro Garitano-Zavala, Jacint Nadal, Pamela Avila
The Feeding Ecology And Digestive Tract Morphometry Of Two Sympatric Tinamous Of The High Plateau Of The Bolivian Andes: The Ornate Tinamou (Nothoprocta Ornata) And The Darwinas Nothura (Nothura Darwinii), Alvaro Garitano-Zavala, Jacint Nadal, Pamela Avila
Ornitología Neotropical
No abstract provided.
Another Value Of Specimens In Museum Collections, Yoshika Oniki
Another Value Of Specimens In Museum Collections, Yoshika Oniki
Ornitología Neotropical
No abstract provided.
Book Reviews, Francois Vuilleumier
Breeding Ecology Of The Social (Myiozetetes Similis) And Rustymargined (M Cayanensis) Flycatchers At Barro Colorado Island, Republic Of Panama, Andrzej Dyrcz
Ornitología Neotropical
No abstract provided.
Foraging And Diet Composition Of The Black-Capped Foliage Gleaner (Philydor Atricapillus), Francisco Mallet-Rodrigues
Foraging And Diet Composition Of The Black-Capped Foliage Gleaner (Philydor Atricapillus), Francisco Mallet-Rodrigues
Ornitología Neotropical
No abstract provided.
The Avifauna Of The Podocarpus National Park - The "Andean Jewel In The Crown" Of Ecuador's Protected Areas, Carsten Rahbek, Hanne Bloch, Michael Koie Poulsen, Jan Fischer Rasmussen
The Avifauna Of The Podocarpus National Park - The "Andean Jewel In The Crown" Of Ecuador's Protected Areas, Carsten Rahbek, Hanne Bloch, Michael Koie Poulsen, Jan Fischer Rasmussen
Ornitología Neotropical
No abstract provided.
Trematode Parasitism As A Possible Factor In Over-Summering Of Greater Yellowlegs (Tringa Melanoleuca), Raymond Mcneil, Marcos Tulio Diaz, Belkys Casanova, Alain Villeneuve
Trematode Parasitism As A Possible Factor In Over-Summering Of Greater Yellowlegs (Tringa Melanoleuca), Raymond Mcneil, Marcos Tulio Diaz, Belkys Casanova, Alain Villeneuve
Ornitología Neotropical
No abstract provided.
Observations On The Feeding Upon Psittacanthus Calyculatus By Brown-Hooded Parrots (Pionopsitta Haematotis), Jack Clinton Eitniear, Steven Mcghee, Will Waddell
Observations On The Feeding Upon Psittacanthus Calyculatus By Brown-Hooded Parrots (Pionopsitta Haematotis), Jack Clinton Eitniear, Steven Mcghee, Will Waddell
Ornitología Neotropical
No abstract provided.
First Record Of The White-Flanked Antwren (Myrmotherula Axillaris) In Mexico, Manuel Marin
First Record Of The White-Flanked Antwren (Myrmotherula Axillaris) In Mexico, Manuel Marin
Ornitología Neotropical
No abstract provided.
Fortalecimiento De La Gobernanza Hídrica Comunitaria En El Destino Ecoturístico Maya Ka’An, Quintana Roo, México, Nori Velázquez Juárez, Liliana García Ramírez, Gonzalo Merediz Alonso, Eduardo Arturo Tapia Lemus
Fortalecimiento De La Gobernanza Hídrica Comunitaria En El Destino Ecoturístico Maya Ka’An, Quintana Roo, México, Nori Velázquez Juárez, Liliana García Ramírez, Gonzalo Merediz Alonso, Eduardo Arturo Tapia Lemus
Maya America: Journal of Essays, Commentary, and Analysis
En 2014, Maya Ka’an surgió como un nuevo destino turístico de Quintana Roo. Impulsado por la Asociación Civil Amigos de Sian Ka’an, plantea y desarrolla acciones bajo un enfoque de desarrollo sustentable, diferenciado al crecimiento de la región norte de Quintana Roo, México. Su actuación parte desde la base comunitaria en los municipios del centro del estado (Tulum, Felipe Carrillo Puerto y José María Morelos) y no está restringida al ámbito turístico, ya que integra diferentes elementos que confluyen en el desarrollo sustentable regional y la conservación del medio ambiente. Uno de estos elementos es la conservación del agua a …
Dryland Vegetation Mapping Using High Spatial-Temporal Resolution Satellite Imagery In New Mexico: A Comparison Of Phenological Time-Series Transformation Methods, Pratistha Sharma
Dryland Vegetation Mapping Using High Spatial-Temporal Resolution Satellite Imagery In New Mexico: A Comparison Of Phenological Time-Series Transformation Methods, Pratistha Sharma
Geography ETDs
New Mexico's drylands are undergoing notable vegetation changes due to rising aridity, higher temperatures, and shifts in precipitation with changing climate. Mapping drylands through remote sensing is challenging compared to mesic systems due to the irregular patterns of rainfall-driven phenology and weaker vegetation absorption signals. This study aims to enhance vegetation mapping in New Mexico, utilizing a high-resolution, frequently revisited PlanetScope dataset with multispectral capabilities, specifically chosen for its suitability for time-series analysis. The challenge with high spatial and temporal data lies in the overwhelming volume, leading to issues like the curse of dimensionality, overfitting, data redundancy, collinearity, and visualization …
Mitochondrial Metabolism In Blood More Reliably Predicts Whole-Animal Energy Needs Compared To Other Tissues, Stefania Casagrande, Maciej Dzialo, Lisa Trost, Kasja Malkoc, Edyta T. Sadowska, Michaela Hau, Barbara J. Pierce, Scott R. Mcwilliams, Ulf Bauchinger
Mitochondrial Metabolism In Blood More Reliably Predicts Whole-Animal Energy Needs Compared To Other Tissues, Stefania Casagrande, Maciej Dzialo, Lisa Trost, Kasja Malkoc, Edyta T. Sadowska, Michaela Hau, Barbara J. Pierce, Scott R. Mcwilliams, Ulf Bauchinger
Biology Faculty Publications
Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole-organism measured at basal levels. The pectoral muscle accounted for 34-42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5-3.0% to organismal MR. Despite its low contribution to organismal MR (0.03-0.04%), RBC MR best predicted …
The Urban Ecology Institute Teaches Local Youth About The Birds Of Boston, Annie Cardinaux, Andrew Breck
The Urban Ecology Institute Teaches Local Youth About The Birds Of Boston, Annie Cardinaux, Andrew Breck
Bird Observer
No abstract provided.