Search Results - "Powell, Luke L."

Differences in phenology across three trophic levels between two Afrotropical sites separated by four degrees latitude by Jarrett, Crinan, Simon, Ojodomo Godday, Tchana, Christian N., Pev, Thaddeus Apezan, Meigang Kamkeng, Michelle Fany, Wandji, Alain Christel, Manu, Shiiwua A., Tchoumbou, Mélanie Adèle, Helm, Barbara, Powell, Luke L., Nwaogu, Chima J.

“…Birds time their life cycle events to favourable windows in environmental conditions. In tropical environments, where photoperiod variation is small, birds…”
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Migratory connectivity and annual cycle phenology of Rusty Blackbirds (Euphagus carolinus) revealed through archival GPS tags by Wright, James R., Johnson, James A., Bayne, Erin, Powell, Luke L., Foss, Carol R., Kennedy, Jeremiah C., Marra, Peter P.

“…Understanding spatial and temporal movement patterns of migratory birds throughout the annual cycle can help identify potential population threats. The…”
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Assessment of Rusty Blackbird Habitat Occupancy in the Long Range Mountains of Newfoundland, Canada Using Forest Inventory Data by Manson, Kathleen K. E., McDermott, Jenna P. B., Powell, Luke L., Whitaker, Darroch M., Warkentin, Ian G.

“…Rusty blackbirds (Euphagus carolinus), once common across their boreal breeding distribution, have undergone steep, range-wide population declines…”
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EU deforestation law overlooks emerging crops by Powell, Luke L, Capela, Joana, Guedes, Patrícia, Beja, Pedro

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Ecology and conservation of avian insectivores of the rainforest understory: A pantropical perspective by Powell, Luke L., Cordeiro, Norbert J., Stratford, Jeffrey A.

“…Avian insectivores of the tropical rainforest understory (“understory insectivores”) are common, diverse, and often sensitive to disturbance of tropical…”
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Bitter fruits of hard labour: diet metabarcoding and telemetry reveal that urban songbirds travel further for lower-quality food by Jarrett, Crinan, Powell, Luke L., McDevitt, Heather, Helm, Barbara, Welch, Andreanna J.

“…Rapidly increasing urbanisation requires mitigation against associated losses of biodiversity and species abundance. In urban-breeding birds, altered food…”
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Interspecific competition between resident and wintering birds: experimental evidence and consequences of coexistence by Powell, Luke L., Ames, Elizabeth M., Wright, James R., Matthiopoulos, Ason, Marra, Peter P.

“…The contribution of interspecific competition to structuring population and community dynamics remains controversial and poorly tested. Interspecific…”
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The role of landscape context in shaping bat assemblages in African cacao plantations by Ferreira, Diogo F., Jarrett, Crinan, Atagana, Patrick Jules, Welch, Andreanna J., Powell, Luke L., Rebelo, Hugo

“…Cacao production is mostly concentrated in Africa, with this continent exporting an impressive 68.4 % of the world's cacao. The increasing demand for cacao…”
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Long‐term change in the avifauna of undisturbed Amazonian rainforest: ground‐foraging birds disappear and the baseline shifts by Stouffer, Philip C, Jirinec, Vitek, Rutt, Cameron L., Bierregaard, Richard O., Hernández‐Palma, Angélica, Johnson, Erik I., Midway, Stephen R., Powell, Luke L., Wolfe, Jared D., Lovejoy, Thomas E., Lawler, Joshua

“…How are rainforest birds faring in the Anthropocene? We use bird captures spanning > 35 years from 55 sites within a vast area of intact Amazonian rainforest…”
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Are bat mist nets ideal for capturing bats? From ultrathin to bird nets, a field test by Ferreira, Diogo F, Jarrett, Crinan, Atagana, Patrick Jules, Powell, Luke L, Rebelo, Hugo

“…The use of mist nets is the most widespread technique to capture bats; however, no study has compared if the type of ground-level mist net used during sampling…”
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Fewer pests and more ecosystem service‐providing arthropods in shady African cocoa farms: Insights from a data integration study by Jarrett, Crinan, Cyril, Kowo, Haydon, Daniel T., Wandji, Christel Alain, Ferreira, Diogo F., Welch, Andreanna J., Powell, Luke L., Matthiopoulos, Jason

“…Agricultural intensification is leading to conversion of cocoa agroforestry towards monocultures across the tropics. In the context of cocoa agriculture,…”
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Automated telemetry reveals staging behavior in a declining migratory passerine by Wright, James R, Powell, Luke L, Tonra, Christopher M

“…Migratory birds spend most of their journeys at stopover sites where they rest and refuel. Many migrants are in steep decline, and understanding their behavior…”
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Integration of mark–recapture and acoustic detections for unbiased population estimation in animal communities by Jarrett, Crinan, Haydon, Daniel T., Morales, Juan M., Ferreira, Diogo F., Forzi, Francis Alemanji, Welch, Andreanna J., Powell, Luke L., Matthiopoulos, Jason

“…Abundance estimation methods that combine several types of data are becoming increasingly common because they yield more accurate and precise parameter…”
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Bird communities in African cocoa agroforestry are diverse but lack specialized insectivores by Jarrett, Crinan, Smith, Thomas B., Claire, Tabe T. R., Ferreira, Diogo F., Tchoumbou, Melanie, Elikwo, Malange N. F., Wolfe, Jared, Brzeski, Kristin, Welch, Andreanna J., Hanna, Rachid, Powell, Luke L.

“…Forests are being converted to agriculture throughout the Afrotropics, driving declines in sensitive rainforest taxa such as understorey birds. The ongoing…”
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Current methods and future directions in avian diet analysis by Hoenig, Brandon D, Snider, Allison M, Forsman, Anna M, Hobson, Keith A, Latta, Steven C, Miller, Eliot T, Polito, Michael J, Powell, Luke L, Rogers, Samantha L, Sherry, Thomas W, Toews, David P. L, Welch, Andreanna J, Taylor, Sabrina S, Porter, Brady A

“…Identifying the composition of avian diets is a critical step in characterizing the roles of birds within ecosystems. However, because birds are a diverse…”
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Integrating agroecological production in a robust post-2020 Global Biodiversity Framework by Wanger, Thomas C., DeClerck, Fabrice, Garibaldi, Lucas A., Ghazoul, Jaboury, Kleijn, David, Klein, Alexandra-Maria, Kremen, Claire, Mooney, Harold, Perfecto, Ivette, Powell, Luke L., Settele, Josef, Solé, Mirco, Tscharntke, Teja, Weisser, Wolfgang

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High resource overlap and small dietary differences are widespread in food‐limited warbler (Parulidae) communities by Kent, Cody M., Huh, Kyu Min, Hunter, Sarah Chieko, Judson, Kathryn, Powell, Luke L., Sherry, Thomas W.

“…Although both interspecific competition and coexistence mechanisms are central to ecological and evolutionary theory, past empirical studies have generally…”
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Interactive effects of elevation and newly paved road on avian community composition in a scientific reserve, Bioko Island, Equatorial Guinea by Miller, Steven C., Wiethase, Joris H., Motove Etingue, Amancio, Franklin, Elaine, Fero, Maximilliano, Wolfe, Jared D., Gonder, Mary K., Powell, Luke L.

“…Understanding interactive effects between anthropogenic disturbance and abiotic factors on species turnover can help to identify and prioritize conservation of…”
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Sociality and morphology differentiate niches of 13 sympatric Amazonian woodcreepers (Dendrocolaptinae) by Powell, Luke L, Rutt, Cameron L, Mokross, Karl, Wolfe, Jared D, Johnson, Erik I, Rodrigues, Patricia F, Stouffer, Philip C

“…Abstract Woodcreepers (Dendrocolaptinae) represent a remarkably uniform group of brownish birds that move by hitching up tree trunks as they forage for…”
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Rusty Blackbirds select areas of greater habitat complexity during stopover by Wright, James R., Powell, Luke L., Matthews, Stephen N., Tonra, Christopher M.

“…The Rusty Blackbird (Euphagus carolinus) is a widespread, uncommon migrant that has experienced heavy population declines over the last century. This species…”
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