Zobrazeno 1 - 10
of 40
pro vyhledávání: '"J. Alfonso Ortega-S"'
Autor:
J. Silverio Avila-Sanchez, Humberto L. Perotto-Baldivieso, Lori D. Massey, J. Alfonso Ortega-S, Leonard A. Brennan, Fidel Hernández
Publikováno v:
Ecological Processes, Vol 13, Iss 1, Pp 1-15 (2024)
Abstract Background Monitoring forage in livestock operations is critical to sustainable rangeland management of soil and ecological processes that provide both livestock and wildlife habitat. Traditional ground-based sampling methods have been widel
Externí odkaz:
https://doaj.org/article/999d23102bf34403880b9820099db763
Autor:
Aaron M. Foley, Kory Gann, David G. Hewitt, Randy W. DeYoung, Timothy E. Fulbright, J. Alfonso Ortega‐S., Tyler A. Campbell
Publikováno v:
Ecosphere, Vol 15, Iss 8, Pp n/a-n/a (2024)
Abstract The resource rule hypothesis predicts that geographic differences in body size among populations of organisms are due to the amount, availability, and quality of food resources. For instance, the body size of large herbivores is often correl
Externí odkaz:
https://doaj.org/article/e2a5c7db8ed14227a9480743f1a1368d
Autor:
Bryan D. Spencer, Randy W. DeYoung, Aaron M. Foley, David G. Hewitt, J. Alfonso Ortega‐S., Landon R. Schofield, Tyler A. Campbell, Michael J. Cherry
Publikováno v:
Ecosphere, Vol 15, Iss 4, Pp n/a-n/a (2024)
Abstract Competition is a complex ecological process involving individual and community interactions at ecological and evolutionary time scales. Individuals within and between species can compete through two mechanisms: exploitative and interference
Externí odkaz:
https://doaj.org/article/7e903efa6e4946999ab975e14823fb6a
Autor:
J. Silverio Avila-Sanchez, Humberto L. Perotto-Baldivieso, Lori D. Massey, J. Alfonso Ortega-S., Leonard A. Brennan, Fidel Hernández
Publikováno v:
Drones, Vol 8, Iss 2, p 64 (2024)
Aerial wildlife surveys with fixed-wing airplanes and helicopters are used more often than on-the-ground field surveys to cover areas that are both extensive and often inaccessible. Drones with high-resolution thermal sensors are being widely accepte
Externí odkaz:
https://doaj.org/article/e060438eafff41caafa577df7363d7c4
Autor:
Kathryn M. Sliwa, Jeremy A. Baumgardt, Randy W. DeYoung, J. Alfonso Ortega‐S, David G. Hewitt, John A. Goolsby, Kimberly H. Lohmeyer
Publikováno v:
Ecosphere, Vol 14, Iss 2, Pp n/a-n/a (2023)
Abstract Wildlife plays an important role in the emergence of livestock diseases, and their movements can complicate disease management efforts. One of the most significant vector‐borne diseases of livestock worldwide is bovine babesiosis, spread b
Externí odkaz:
https://doaj.org/article/b10a7eca9b3841a69f8165aeabb8721e
Autor:
Victoria L. Haynes, J. Silverio Avila-Sanchez, Adam E. Toomey, J. Alfonso Ortega-S., Tyler A. Campbell, Alfonso Ortega-S., Sandra Rideout-Hanzak, David B. Wester
Publikováno v:
Fire, Vol 6, Iss 3, p 105 (2023)
Gulf cordgrass (Spartina spartinae [Trin.] Merr. ex Hitchc.) and seacoast bluestem (Schizachyrium scoparium [Michx.] Nash var. littorale [Nash] Gould) are dominant native warm season grasses in the Texas Coastal Prairies and Marshes ecoregion. Mature
Externí odkaz:
https://doaj.org/article/c69c2011088d49db84df0b257a211618
Autor:
Douglas Jeffrey Goodwin, Daniel A. Kane, Kundan Dhakal, Kristofer R. Covey, Charles Bettigole, Juliana Hanle, J. Alfonso Ortega-S., Humberto L. Perotto-Baldivieso, William E. Fox, Douglas R. Tolleson
Publikováno v:
Soil Systems, Vol 6, Iss 2, p 38 (2022)
Soil organic carbon influences several landscape ecological processes, and soils are becoming recognized as a mechanism to mitigate the negative impacts of climate change. There is a need to define methods and technologies for addressing soils’ spa
Externí odkaz:
https://doaj.org/article/714e4ec920304c20ae8ccac805e74f77
Autor:
Alexandria M. DiMaggio, Humberto L. Perotto-Baldivieso, J. Alfonso Ortega-S., Chase Walther, Karelys N. Labrador-Rodriguez, Michael T. Page, Jose de la Luz Martinez, Sandra Rideout-Hanzak, Brent C. Hedquist, David B. Wester
Publikováno v:
Remote Sensing, Vol 12, Iss 15, p 2431 (2020)
The application of unmanned aerial vehicles (UAVs) in the monitoring and management of rangelands has exponentially increased in recent years due to the miniaturization of sensors, ability to capture imagery with high spatial resolution, lower altitu
Externí odkaz:
https://doaj.org/article/4de32794d23f44c091fd9358a146d90f
Autor:
Michael T. Page, Humberto L. Perotto-Baldivieso, J. Alfonso Ortega-S, Evan P. Tanner, Jay P. Angerer, Rider C. Combs, Annalysa M. Camacho, Melaine Ramirez, Victoria Cavazos, Hunter Carroll, Kiri Baca, Dwain Daniels, Tony Kimmet
Publikováno v:
Rangeland Ecology & Management. 83:91-101
Autor:
Lisa D Zoromski, Randy W DeYoung, John A Goolsby, Aaron M Foley, J Alfonso Ortega-S., David G Hewitt, Tyler A Campbell
Publikováno v:
Journal of Mammalogy. 103:1194-1207
The use of scent for communication is widespread in mammals, yet the role of scent-marking in the social system of many species is poorly understood. Nilgai antelope (Boselaphus tragocamelus) are native to India, Nepal, and Pakistan. They were introd