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Worrest, Robert C.,
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Fisheries and Wildlife
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- Creator:
- Pitman, James C., Hagen, Christian A., Robel, Robert J., Loughlin, Thomas M., and Applegate, Roger D.
- Abstract:
- The ability to ascertain gender and age of juvenile grouse is essential for determining gender-specific population age structure and studying timing of reproductive events, respectively. We examined outer rectrix feathers from juvenile Lesser Prairie-Chickens (Tympanuchus pallidicinctus) captured at 30–40 and 50–60 days post-hatching. Blood samples were collected from most chicks...
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- Article
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- GROWTH OF JUVENILE LESSER PRAIRIE-CHICKENS JAMES C. PITMAN1,4, CHRISTIAN A. HAGEN1, ROBERT J. ROBEL1
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- Creator:
- Hagen, Christian A., Pitman, James C., Sandercock, Brett K., Robel, Robert J., and Applegate, Roger D.
- Abstract:
- We used mark-recapture methods to estimate age-specific apparent survival rates for male Lesser Prairie-Chickens (Tympanuchus pallidicinctus), a gamebird of conservation concern. A total of 311 male prairie-chickens (135 yearlings, 176 adults) were captured and banded during a 5-year study in southwest Kansas. Time-since-marking models were used to estimate apparent survival...
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- Article
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- C. PITMAN1, BRETT K. SANDERCOCK1, ROBERT J. ROBEL1 AND ROGER D. APPLEGATE2 1Division of Biology
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- Creator:
- Hagen, Christian A., Salter, G. Curran, Pitman, James C., Robel, Robert J., and Applegate, Roger D.
- Abstract:
- Invertebrates are an important food source for grouse chicks, especially within the first 2 weeks of life. Invertebrate abundance is highly patchy and dependent upon herbaceous cover and vegetation structure. We examined the relationship between invertebrate biomass (from sweepnet samples) and habitat structure at lesser prairie-chicken (Tympanuchus pallidicinctus) brood-use and...
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- Article
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- C. Pitman, Robert J. Robel, and Roger D. Applegate Abstract Invertebrates are an important food
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- Creator:
- Hagen, Chrisitan A., Pitman, James C., Robel, Robert J., Loughin, Thomas M., and Applegate, Roger D.
- Abstract:
- We conducted this 2-year study to determine if lesser prairie-chickens Tympanuchus pallidicinctus and ring-necked pheasants Phasianus colchicus used the same habitats where their ranges overlapped in southwestern Kansas. Telemetry locations of 50 transmitter-equipped lesser prairie-chickens and 28 pheasants were used to monitor habitat use by the two species. Additionally, vegetation...
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- Article
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- , southwestern Kansas, Tympanuchus pallidicinctus Christian A. Hagen*, James C. Pitman** & Robert J. Robel
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- Creator:
- Williamson, Kenneth J., Bella, David A., Beschta, Robert L., Grant, Gordon, Klingeman, Peter C., Li, Hiram W., and Nelson, Peter O.
- Abstract:
- In this report, a response is given to the charge of this study. Volume I: Summary Report includes a synopsis of the technical considerations followed by the main findings and recommendations. The full technical background for these summary statements is given in detail in Volume II: Technical Background Report, and...
- Resource Type:
- Technical Report
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- , Civil Engineering, OSU Robert L. Beschta, Professor, Forest Engineering, OSU Gordon Grant, Research
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- Creator:
- Hagen, Christian A., Pitman, James C., Sandercock, Brett K., Wolfe, Don H., Robel, Robert J., Applegate, Roger D., and Oyler-McCance, Sara J.
- Abstract:
- Cumulative loss of habitat and long-term decline in the populations of the Lesser Prairie-Chicken (Tympanuchus pallidicinctus) have led to concerns for the species’ viability throughout its range in the southern Great Plains. For more efficient conservation past and present distributions of genetic variation need to be understood. We examined the...
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- Article
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- , Nashville, Tennessee 37204. CHRISTIAN A. HAGEN1,5, JAMES C. PITMAN1,6, BRETT K. SANDERCOCK1, DON H. WOLFE2
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- Creator:
- Daniel, Wesley M., Infante, Dana M., Hughes, Robert M., Tsang, Yin-Phan, Esselman, Peter C., Wieferich, Daniel, Herreman, Kyle, Cooper, Arthur R., Wang, Lizhu, and Taylor, William W.
- Abstract:
- Mining impacts on stream systems have historically been studied over small spatial scales, yet investigations over large areas may be useful for characterizing mining as a regional source of stress to stream fishes. The associations between co-occurring stream fish assemblages and densities of various “classes” of mining occurring in the...
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- Article
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- , Robert M. Hughes b, Yin-Phan Tsang a, Peter C. Esselman c, Daniel Wieferich a, Kyle Herreman a, Arthur R
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- Creator:
- Williamson, Kenneth J., Bella, David A., Beschta, Robert L., Grant, Gordon, Klingeman, Peter C., Li, Hiram W., Nelson, Peter O., Castillo, Gonzalo, Lorz, Tom, Meleason, Mark, Minear, Paula, Moret, Stephanie, Nam, Ilgi, Reiter, Maryanne, and Wieland, Lisa
- Abstract:
- A report for the Oregon Division of State Lands.
- Resource Type:
- Technical Report
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- , Oregon Water Resources Research Institute David A. Bella, Professor, Civil Engineering, OSU Robert L
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- Creator:
- Benoit-Bird, Kelly J., Battaile, Brian C., Heppell, Scott A., Hoover, Brian, Irons, David, Jones, Nathan, Kuletz, Kathy J., Nordstrom, Chad A., Paredes, Rosana, Suryan, Robert M., Waluk, Chad M., and Trites, Andrew W.
- Abstract:
- Spatial coherence between predators and prey has rarely been observed in pelagic marine ecosystems. We used measures of the environment, prey abundance, prey quality, and prey distribution to explain the observed distributions of three co-occurring predator species breeding on islands in the southeastern Bering Sea: black-legged kittiwakes (Rissa tridactyla), thick-billed...
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- Article
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- by Top Marine Predators with Diverse Foraging Strategies Kelly J. Benoit-Bird1*, Brian C. Battaile3
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- Creator:
- Laurance, William F., Useche, D. Carolina, Rendeiro, Julio, Kalka, Margareta, Bradshaw, Corey J. A., Sloan, Sean P., Laurance, Susan G., Campbell, Mason, Abernethy, Kate, Alvarez, Patricia, Arroyo-Rodriguez, Victor, Ashton, Peter, Benitez-Malvido, Julieta, Blom, Allard, Bobo, Kadiri S., Cannon, Charles H., Cao, Min, Carroll, Richard, Chapman, Colin, Coates, Rosamond, Cords, Marina, Danielsen, Finn, De Dijn, Bart, Dinerstein, Eric, Donnelly, Maureen A., Edwards, David, Edwards, Felicity, Farwig, Nina, Fashing, Peter, Forget, Pierre-Michel, Foster, Mercedes, Gale, George, Harris, David, Harrison, Rhett, Hart, John, Karpanty, Sarah, Kress, W. John, Krishnaswamy, Jagdish, Logsdon, Willis, Lovett, Jon, Magnusson, William, Maisels, Fiona, Marshall, Andrew R., McClearn, Deedra, Mudappa, Divya, Nielsen, Martin R., Pearson, Richard, Pitman, Nigel, van der Ploeg, Jan, Plumptre, Andrew, Poulsen, John, Quesada, Mauricio, Rainey, Hugo, Robinson, Douglas, Roetgers, Christiane, Rovero, Francesco, Scatena, Frederick, Schulze, Christian, Sheil, Douglas, Struhsaker, Thomas, Terborgh, John, Thomas, Duncan, Timm, Robert, Urbina-Cardona, J. Nicolas, Vasudevan, Karthikeyan, Wright, S. Joseph, Arias-G, Juan Carlos, Arroyo, Luzmila, Ashton, Mark, Auzel, Philippe, Babaasa, Dennis, Babweteera, Fred, Baker, Patrick, Banki, Olaf, Bass, Margot, Bila-Isia, Inogwabini, Blake, Stephen, Brockelman, Warren, Brokaw, Nicholas, Bruehl, Carsten A., Bunyavejchewin, Sarayudh, Chao, Jung-Tai, Chave, Jerome, Chellam, Ravi, Clark, Connie J., Clavijo, Jose, Congdon, Robert, Corlett, Richard, Dattaraja, H. S., Dave, Chittaranjan, Davies, Glyn, Beisiegel, Beatriz de Mello, da Silva, Rosa de Nazarepaes, Di Fiore, Anthony, Diesmos, Arvin, Dirzo, Rodolfo, Doran-Sheehy, Diane, Eaton, Mitchell, Emmons, Louise, Estrada, Alejandro, Ewango, Corneille, Fedigan, Linda, Feer, Francois, Fruth, Barbara, Willis, Jacalyn Giacalone, Goodale, Uromi, Goodman, Steven, Guix, Juan C., Guthiga, Paul, Haber, William, Hamer, Keith, Herbinger, Ilka, Hill, Jane, Huang, Zhongliang, Sun, I. Fang, Ickes, Kalan, Itoh, Akira, Ivanauskas, Natalia, Jackes, Betsy, Janovec, John, Janzen, Daniel, Jiangming, Mo, Jin, Chen, Jones, Trevor, Justiniano, Hermes, Kalko, Elisabeth, Kasangaki, Aventino, Killeen, Timothy, King, Hen-biau, Klop, Erik, Knott, Cheryl, Kone, Inza, Kudavidanage, Enoka, Ribeiro, Jose Lahoz da Silva, Lattke, John, Laval, Richard, Lawton, Robert, Leal, Miguel, Leighton, Mark, Lentino, Miguel, Leonel, Cristiane, Lindsell, Jeremy, Ling-Ling, Lee, Linsenmair, K. Eduard, Losos, Elizabeth, Lugo, Ariel, Lwanga, Jeremiah, Mack, Andrew L., Martins, Marlucia, McGraw, W. Scott, McNab, Roan, Montag, Luciano, Thompson, Jo Myers, Nabe-Nielsen, Jacob, Nakagawa, Michiko, Nepal, Sanjay, Norconk, Marilyn, Novotny, Vojtech, O'Donnell, Sean, Opiang, Muse, Ouboter, Paul, Parker, Kenneth, Parthasarathy, N., Pisciotta, Katia, Prawiradilaga, Dewi, Pringle, Catherine, Rajathurai, Subaraj, Reichard, Ulrich, Reinartz, Gay, Renton, Katherine, Reynolds, Glen, Reynolds, Vernon, Riley, Erin, Roedel, Mark-Oliver, Rothman, Jessica, Round, Philip, Sakai, Shoko, Sanaiotti, Tania, Savini, Tommaso, Schaab, Gertrud, Seidensticker, John, Siaka, Alhaji, Silman, Miles R., Smith, Thomas B., de Almeida, Samuel Soares, Sodhi, Navjot, Stanford, Craig, Stewart, Kristine, Stokes, Emma, Stoner, Kathryn E., Sukumar, Raman, Surbeck, Martin, Tobler, Mathias, Tscharntke, Teja, Turkalo, Andrea, Umapathy, Govindaswamy, van Weerd, Merlijn, Rivera, Jorge Vega, Venkataraman, Meena, Venn, Linda, Verea, Carlos, de Castilho, Carolina Volkmer, Waltert, Matthias, Wang, Benjamin, Watts, David, Weber, William, West, Paige, Whitacre, David, Whitney, Ken, Wilkie, David, Williams, Stephen, Wright, Debra D., Wright, Patricia, Xiankai, Lu, Yonzon, Pralad, and Zamzani, Franky
- Abstract:
- The rapid disruption of tropical forests probably imperils global biodiversity more than any other contemporary phenomenon¹⁻³. With deforestation advancing quickly, protected areas are increasingly becoming final refuges for threatened species and natural ecosystem processes. However, many protected areas in the tropics are themselves vulnerable to human encroachment and other environmental...
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- Article
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- . Nature 403, 843–845 (2000). 2. Bradshaw, C. J. A., Sodhi, N. S. & Brook, B. W. Tropical turmoil—a