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Now showing items 281-300 of 320

    • Potential mammalian filovirus reservoirs 

      Peterson, A. Townsend; Carroll, Darin S.; Mills, James N.; Johnson, Karl M. (Centers for Disease Control and Prevention, 2004-12)
      Ebola and Marburg viruses are maintained in unknown reservoir species; spillover into human populations results in occasional human cases or epidemics. We attempted to narrow the list of possibilities regarding the identity ...
    • Ecologic and geographic distribution of filovirus disease 

      Peterson, A. Townsend; Bauer, John T.; Mills, James N. (Centers for Disease Control and Prevention, 2004-01)
      We used ecologic niche modeling of outbreaks and sporadic cases of filovirus-associated hemorrhagic fever (HF) to provide a large-scale perspective on the geographic and ecologic distributions of Ebola and Marburg viruses. We ...
    • West Nile virus transmission in resident birds, Dominican Republic 

      Komar, Oliver; Robbins, Mark B.; Klenk, Kaci; Blitvich, Bradley J.; Marlenee, Nicole L.; Burkhalter, Kristen L.; Gubler, Duane J.; Gonzálvez, Guillermo; Peña, Carlos J.; Peterson, A. Townsend; Komar, Nicholas (Centers for Disease Control and Prevention, 2003-10)
      We report West Nile virus (WNV) activity in the Dominican Republic for the first time. Specific anti-WNV antibodies were detected in 5 (15%) of 33 resident birds sampled at one location in November 2002. One seropositive bird ...
    • Chagas disease in a domestic transmission cycle in southern Texas, USA 

      Beard, C. Ben; Pye, Greg; Steurer, Frank J.; Rodriguez, Ray; Campman, Richard; Peterson, A. Townsend; Wirtz, Robert A.; Robinson, Laura E. (Centers for Disease Control and Prevention, 2003-01)
      After three dogs died from acute Chagas cardiomyopathy at one location, an investigation was conducted of the home, garage, and grounds of the owner. A serologic study was conducted on stray dogs, and an ecologic niche ...
    • Ecologic niche modeling and potential reservoirs for Chagas disease, Mexico 

      Peterson, A. Townsend; Sánchez-Cordero, Víctor; Beard, C. Ben; Ramsey, Janine M. (Centers for Disease Control and Prevention, 2002-07)
      Ecologic niche modeling may improve our understanding of epidemiologically relevant vector and parasitereservoir distributions. We used this tool to identify host relationships of Triatoma species implicated in transmission ...
    • Ecological niche modelling and prioritizing areas for species reintroductions 

      Martínez-Meyer, Enrique; Peterson, A. Townsend; Servín, Jorge I.; Kiff, Lloyd F. (Cambridge University Press, 2006-10)
      Species reintroduction programmes, in prioritizing areas for reintroductions, have traditionally used tools that include measures of habitat suitability and evaluations of area requirements for viable populations. Here we ...
    • Taxonomy is important in conservation: a preliminary reassessment of Philippine species-level bird taxonomy 

      Peterson, A. Townsend (Cambridge University Press, 2006)
      Alpha taxonomy involves delineation of the basic unit of biology: the species. The concepts by which we define species, however, have been controversial, with several alternatives competing at present, some creating fewer ...
    • West Nile virus in the New World: potential impacts on bird species 

      Peterson, A. Townsend; Komar, Nicholas; Komar, Oliver; Navarro-Sigüenza, Adolfo G.; Robbins, Mark B.; Martínez-Meyer, Enrique (Cambridge University Press, 2004)
      The past five years have seen the arrival and extremely rapid expansion of West Nile virus (WNV) in the Western Hemisphere. The rapid sweep across North America has permitted little time for developing knowledge of the ...
    • The Chimalapas Region, Oaxaca, Mexico: a high-priority region for bird conservation in Mesoamerica 

      Peterson, A. Townsend; Navarro-Sigüenza, Adolfo G.; Hernández-Baños, Blanca E.; Escalona-Segura, Griselda; Rebón-Gallardo, Fanny; Rodríguez-Ayala, Emir; Figueroa-Esquivel, Elsa M.; Cabrera-García, Leonardo (Cambridge University Press, 2003)
      The Chimalapas region, in eastern Oaxaca, Mexico, holds lowland rainforests, tropical dry forests, and cloud forests typical of the Neotropics, as well as montane pine and pine-oak forests more typical of the Nearctic. ...
    • Prioritization of areas in China for the conservation of endangered birds using modelled geographical distributions 

      Chen, Guojun; Peterson, A. Townsend (Cambridge University Press, 2002)
      We developed distributional models for 90 threatened bird species in China, and used heuristic complementarity algorithms to prioritize areas for conservation. The pixel-based area selection prioritized 20 areas for ...
    • Ecology and geography of avian influenza (HPAI H5N1) transmission in the Middle East and northeastern Africa 

      Williams, Richard A. J.; Peterson, A. Townsend (BioMed Central, 2009-07-20)
      Background: The emerging highly pathogenic avian influenza strain H5N1 ("HPAI-H5N1") has spread broadly in the past decade, and is now the focus of considerable concern. We tested the hypothesis that spatial distributions ...
    • Geographic distribution and ecological niche of plague in sub-Saharan Africa 

      Neerinckx, Simon B.; Peterson, A. Townsend; Gulinck, Hubert; Deckers, Jozef; Leirs, Herwig (BioMed Central, 2008-10-23)
      Background: Plague is a rapidly progressing, serious illness in humans that is likely to be fatal if not treated. It remains a public health threat, especially in sub-Saharan Africa. In spite of plague's highly focal ...
    • Geographic potential for outbreaks of Marburg hemorrhagic fever 

      Peterson, A. Townsend; Lash, R. Ryan; Carroll, Darin S.; Johnson, Karl M. (American Society of Tropical Medicine and Hygiene, 2006)
      Marburg virus represents one of the least well-known of the hemorrhagic fever-causing viruses worldwide; in particular, its geographic potential in Africa remains quite mysterious. Ecologic niche modeling was used to ...
    • Geographic and ecologic distributions of the *Anopheles gambiae* complex predicted using a genetic algorithm 

      Levine, Rebecca S.; Peterson, A. Townsend; Benedict, Mark Q. (American Society of Tropical Medicine and Hygiene, 2004-02)
      The distribution of the Anopheles gambiae complex of malaria vectors in Africa is uncertain due to under-sampling of vast regions. We use ecologic niche modeling to predict the potential distribution of three members of ...
    • Ecological niche modeling and differentiation of populations of *Triatoma brasiliensis* Neiva, 1911, the most important Chagas disease vector in northeastern Brazil (Hemiptera, Reduviidae, Triatominae) 

      Costa, Jane; Peterson, A. Townsend; Beard, C. Ben (American Society of Tropical Medicine and Hygiene, 2002-11)
      Ecologic niche modeling has allowed numerous advances in understanding the geographic ecology of species, including distributionalpredictions, distributionalchange and invasion, and assessment of ecologic differences. We ...
    • Predicting invasions of North American basses in Japan using native range data and a genetic algorithm 

      Iguchi, Kei'ichiro; Matsuura, Keiichi; McNyset, Kristina M.; Peterson, A. Townsend; Scachetti-Pereira, Ricardo; Powers, Katherine A.; Vieglais, David A.; Wiley, Edward O.; Yodo, Taiga (American Fisheries Society, 2004-07)
      Largemouth bass Micropterus salmoides and smallmouth bass M. dolomieu have been introduced into freshwater habitats in Japan, with potentially serious consequences for native fish populations. In this paper we apply the ...
    • Use of datasets derived from time-series AVHRR imagery as surrogates for land cover maps in predicting species' distributions 

      Egbert, Stephen L.; Martínez-Meyer, Enrique; Ortega-Huerta, Miguel; Peterson, A. Townsend (IEEE, 2002-06)
      We hypothesized that NDVI time-series composite imagery or clustered data derived from the NDVI time series could serve as effective surrogates for land cover data in predictive modeling of species’ ecological niches ...
    • Time-Series Classification of High-Temporal Resolution AVHRR NDVI Imagery of Mexico 

      Egbert, Stephen L.; Ortega-Huerta, Miguel; Martínez-Meyer, Enrique; Price, Kevin P.; Peterson, A. Townsend (IEEE, 2000)
      Time-series data from wide-field sensors, acquired for the period of a growing season or longer, capitalize on phenological changes in vegetation and make it possible to identify vegetated land cover types in greater detail. ...
    • Distribution of the birds of the Philippines: biogeography and conservation priorities 

      Peterson, A. Townsend; Ball, Lisa G.; Brady, Kelly W. (Cambridge University Press, 2000)
      The Philippine islands hold a concentration of species diversity and endemism of global importance, yet few studies have analyzed biogeographic patterns or attempted to prioritize areas for conservation within the archipelago. ...
    • Genetic endangerment of wild Red Junglefowl *Gallus gallus*? 

      Peterson, A. Townsend; Brisbin, I. Lehr, Jr (Cambridge University Press, 1998)
      Domestic chickens were derived from the wild Red Junglefowl Gallus gallus. A survey of 745 museum specimens of Red Junglefowl suggests that most wild populations have been contaminated genetically by introgression of ...