Search Results - "Hopcraft, Grant"

Cross-boundary human impacts compromise the Serengeti-Mara ecosystem by Veldhuis, Michiel P, Ritchie, Mark E, Ogutu, Joseph O, Morrison, Thomas A, Beale, Colin M, Estes, Anna B, Mwakilema, William, Ojwang, Gordon O, Parr, Catherine L, Probert, James, Wargute, Patrick W, Hopcraft, J Grant C, Olff, Han

“…Protected areas provide major benefits for humans in the form of ecosystem services, but landscape degradation by human activity at their edges may compromise…”
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Dynamics of a morbillivirus at the domestic–wildlife interface: Canine distemper virus in domestic dogs and lions by Viana, Mafalda, Cleaveland, Sarah, Matthiopoulos, Jason, Halliday, Jo, Packer, Craig, Craft, Meggan E., Hampson, Katie, Czupryna, Anna, Dobson, Andrew P., Dubovi, Edward J., Ernest, Eblate, Fyumagwa, Robert, Hoare, Richard, Hopcraft, J. Grant C., Horton, Daniel L., Kaarek, Magai T., Kanellos, Theo, Lankester, Felix, Mentzel, Christine, Mlengeya, Titus, Mzimbiri, Imam, Takahashi, Emi, Willett, Brian, Haydon, Daniel T., Lembo, Tiziana

“…Significance Morbilliviruses are a growing concern because of their ability to infect multiple species. The spill-over of canine distemper virus (CDV) from…”
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Livestock movement informs the risk of disease spread in traditional production systems in East Africa by Ekwem, Divine, Morrison, Thomas A., Reeve, Richard, Enright, Jessica, Buza, Joram, Shirima, Gabriel, Mwajombe, James K., Lembo, Tiziana, Hopcraft, J. Grant C.

“…In Africa, livestock are important to local and national economies, but their productivity is constrained by infectious diseases. Comprehensive information on…”
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Longest terrestrial migrations and movements around the world by Joly, Kyle, Gurarie, Eliezer, Sorum, Mathew S., Kaczensky, Petra, Cameron, Matthew D., Jakes, Andrew F., Borg, Bridget L., Nandintsetseg, Dejid, Hopcraft, J. Grant C., Buuveibaatar, Bayarbaatar, Jones, Paul F., Mueller, Thomas, Walzer, Chris, Olson, Kirk A., Payne, John C., Yadamsuren, Adiya, Hebblewhite, Mark

“…Long-distance terrestrial migrations are imperiled globally. We determined both round-trip migration distances (straight-line measurements between migratory…”
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From single steps to mass migration: the problem of scale in the movement ecology of the Serengeti wildebeest by Torney, Colin J., Hopcraft, J. Grant C., Morrison, Thomas A., Couzin, Iain D., Levin, Simon A.

“…A central question in ecology is how to link processes that occur over different scales. The daily interactions of individual organisms ultimately determine…”
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Deep learning enables satellite-based monitoring of large populations of terrestrial mammals across heterogeneous landscape by Wu, Zijing, Zhang, Ce, Gu, Xiaowei, Duporge, Isla, Hughey, Lacey F., Stabach, Jared A., Skidmore, Andrew K., Hopcraft, J. Grant C., Lee, Stephen J., Atkinson, Peter M., McCauley, Douglas J., Lamprey, Richard, Ngene, Shadrack, Wang, Tiejun

“…New satellite remote sensing and machine learning techniques offer untapped possibilities to monitor global biodiversity with unprecedented speed and…”
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Local and wide-scale livestock movement networks inform disease control strategies in East Africa by Ekwem, Divine, Enright, Jessica, Hopcraft, J. Grant C., Buza, Joram, Shirima, Gabriel, Shand, Mike, Mwajombe, James K., Bett, Bernard, Reeve, Richard, Lembo, Tiziana

“…Livestock mobility exacerbates infectious disease risks across sub-Saharan Africa, but enables critical access to grazing and water resources, and trade…”
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We are what we eat, plus some per mill: Using stable isotopes to estimate diet composition in Gyps vultures over space and time by Baino, Allan A., Hopcraft, Grant G. J. C., Kendall, Corinne J., Newton, Jason, Behdenna, Abdelkader, Munishi, Linus K.

“…Dietary studies in birds of prey involve direct observation and examination of food remains at resting and nesting sites. Although these methods accurately…”
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A comparison of deep learning and citizen science techniques for counting wildlife in aerial survey images by Torney, Colin J., Lloyd‐Jones, David J., Chevallier, Mark, Moyer, David C., Maliti, Honori T., Mwita, Machoke, Kohi, Edward M., Hopcraft, Grant C., McCrea, Rachel

“…Fast and accurate estimates of wildlife abundance are an essential component of efforts to conserve ecosystems in the face of rapid environmental change. A…”
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Anthropogenic modifications to fire regimes in the wider Serengeti‐Mara ecosystem by Probert, James R., Parr, Catherine L., Holdo, Ricardo M., Anderson, T. Michael, Archibald, Sally, Courtney Mustaphi, Colin J., Dobson, Andrew P., Donaldson, Jason E., Hopcraft, Grant C., Hempson, Gareth P., Morrison, Thomas A., Beale, Colin M.

“…Fire is a key driver in savannah systems and widely used as a land management tool. Intensifying human land uses are leading to rapid changes in the fire…”
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Competition, predation, and migration: individual choice patterns of Serengeti migrants captured by hierarchical models by Hopcraft, J. Grant C, Morales, J. M, Beyer, H. L, Borner, Markus, Mwangomo, Ephraim, Sinclair, A. R. E, Olff, Han, Haydon, Daniel T

“…Large-herbivore migrations occur across gradients of food quality or food abundance that are generally determined by underlying geographic patterns in…”
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Interplay of competition and facilitation in grazing succession by migrant Serengeti herbivores by Anderson, T Michael, Hepler, Staci A, Holdo, Ricardo M, Donaldson, Jason E, Erhardt, Robert J, Hopcraft, J Grant C, Hutchinson, Matthew C, Huebner, Sarah E, Morrison, Thomas A, Muday, Jeffry, Munuo, Issack N, Palmer, Meredith S, Pansu, Johan, Pringle, Robert M, Sketch, Robert, Packer, Craig

“…Competition, facilitation, and predation offer alternative explanations for successional patterns of migratory herbivores. However, these interactions are…”
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Automated and repeated aerial observations of GPS‐collared animals using UAVs and open‐source electronics by Kavwele, Cyrus M., Hopcraft, J. Grant C., Davy, Deborah, Torney, Colin J.

“…Telemetry has enabled ecologists to link animal movement trajectories and environmental features at a fine spatiotemporal resolution; however, the effects of…”
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Body size and the division of niche space: food and predation differentially shape the distribution of Serengeti grazers by Hopcraft, J. Grant C., Anderson, T. Michael, Pérez-Vila, Saleta, Mayemba, Emilian, Olff, Han

“…1. Theory predicts that small grazers are regulated by the digestive quality of grass, while large grazers extract sufficient nutrients from low-quality forage…”
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Assessing Rotation-Invariant Feature Classification for Automated Wildebeest Population Counts by Torney, Colin J, Dobson, Andrew P, Borner, Felix, Lloyd-Jones, David J, Moyer, David, Maliti, Honori T, Mwita, Machoke, Fredrick, Howard, Borner, Markus, Hopcraft, J Grant C

“…Accurate and on-demand animal population counts are the holy grail for wildlife conservation organizations throughout the world because they enable fast and…”
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Conservation: Beyond population growth-Response by Ogutu, Joseph O, Veldhuis, Michiel P, Morrison, Thomas A, Hopcraft, J Grant C, Olff, Han

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Tracking animal movements using biomarkers in tail hairs: a novel approach for animal geolocating from sulfur isoscapes by Kabalika, Zabibu, Morrison, Thomas A, McGill, Rona A R, Munishi, Linus K, Ekwem, Divine, Mahene, Wilson Leonidas, Lobora, Alex L, Newton, Jason, Morales, Juan M, Haydon, Daniel T, Hopcraft, Grant G J C

“…Current animal tracking studies are most often based on the application of external geolocators such as GPS and radio transmitters. While these technologies…”
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African vultures don't follow migratory herds: scavenger habitat use is not mediated by prey abundance by Kendall, Corinne J, Virani, Munir Z, Hopcraft, J Grant C, Bildstein, Keith L, Rubenstein, Daniel I

“…The ongoing global decline in vulture populations raises major conservation concerns, but little is known about the factors that mediate scavenger habitat use,…”
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Estimating the abundance of a group‐living species using multi‐latent spatial models by Torney, Colin J., Laxton, Megan, Lloyd‐Jones, David J., Kohi, Edward M., Frederick, Howard L., Moyer, David C., Mrisha, Chediel, Mwita, Machoke, Hopcraft, J. Grant C.

“…Statistical models use observations of animals to make inferences about the abundance and distribution of species. However, the spatial distribution of animals…”
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Effective Enforcement in a Conservation Area by Hilborn, Ray, Arcese, Peter, Borner, Markus, Hando, Justin, Hopcraft, Grant, Loibooki, Martin, Mduma, Simon, Sinclair, Anthony R.E

“…Wildlife within protected areas is under increasing threat from bushmeat and illegal trophy trades, and many argue that enforcement within protected areas is…”
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