Search Results - "DONNELLY, MAUREEN A."

Tropical amphibians in shifting thermal landscapes under land-use and climate change by Nowakowski, A. Justin, Watling, James I., Whitfield, Steven M., Todd, Brian D., Kurz, David J., Donnelly, Maureen A.

“…Land-cover and climate change are both expected to alter species distributions and contribute to future biodiversity loss. However, the combined effects of…”
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Thermal biology mediates responses of amphibians and reptiles to habitat modification by Nowakowski, A. Justin, Watling, James I., Thompson, Michelle E., Brusch, George A., Catenazzi, Alessandro, Whitfield, Steven M., Kurz, David J., Suárez‐Mayorga, Ángela, Aponte‐Gutiérrez, Andrés, Donnelly, Maureen A., Todd, Brian D., Calcagno, Vincent

“…Human activities often replace native forests with warmer, modified habitats that represent novel thermal environments for biodiversity. Reducing biodiversity…”
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Fragments as Islands: a Synthesis of Faunal Responses to Habitat Patchiness by WATLING, JAMES I., DONNELLY, MAUREEN A.

“…Scientific interest in the impact of habitat fragmentation on biodiversity is increasing, but our understanding of fragmentation is clouded by a lack of…”
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Meta-analysis reveals the importance of matrix composition for animals in fragmented habitat by Watling, James I., Nowakowski, A. Justin, Donnelly, Maureen A., Orrock, John L.

“…Aim: Connectivity is a key determinant of the distribution and abundance of organisms and is greatly influenced by anthropogenic landscape modification, yet we…”
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review of chemical ecology in poison frogs by Saporito, Ralph A, Donnelly, Maureen A, Spande, Thomas F, Garraffo, H. Martin

“…Herein we review what is known about the chemical ecology of poison frogs with a focus on dendrobatid poison frogs. While five anuran families are known to…”
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Amphibian and reptile declines over 35 years at La Selva, Costa Rica by Whitfield, Steven M, Bell, Kristen E, Philippi, Thomas, Sasa, Mahmood, Bolaños, Federico, Chaves, Gerardo, Savage, Jay M, Donnelly, Maureen A

“…Amphibians stand at the forefront of a global biodiversity crisis. More than one-third of amphibian species are globally threatened, and over 120 species have…”
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Oribatid mites as a major dietary source for alkaloids in poison frogs by Saporito, Ralph A, Donnelly, Maureen A, Norton, Roy A, Garraffo, H. Martin, Spande, Thomas F, Daly, John W

“…Alkaloids in the skin glands of poison frogs serve as a chemical defense against predation, and almost all of these alkaloids appear to be sequestered from…”
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Engineering a future for amphibians under climate change by Shoo, Luke P., Olson, Deanna H., McMenamin, Sarah K., Murray, Kris A., Van Sluys, Monique, Donnelly, Maureen A., Stratford, Danial, Terhivuo, Juhani, Merino-Viteri, Andres, Herbert, Sarah M., Bishop, Phillip J., Corn, Paul Stephen, Dovey, Liz, Griffiths, Richard A., Lowe, Katrin, Mahony, Michael, McCallum, Hamish, Shuker, Jonathan D., Simpkins, Clay, Skerratt, Lee F., Williams, Stephen E., Hero, Jean-Marc

“…1. Altered global climates in the 21st century pose serious threats for biological systems and practical actions are needed to mount a response for species at…”
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Ulva connection: marine algae subsidize terrestrial predators in coastal Peru by Catenazzi, Alessandro, A. Donnelly, Maureen

“…How can terrestrial animals survive in a desert with scant primary productivity? The Peruvian coastal desert is hyper-arid, but faces one of the world's most…”
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Arthropod Alkaloids in Poison Frogs: A Review of the ‘Dietary Hypothesis’ by A. Saporito, Ralph, F. Spande, Thomas, Martin Garraffo, H., A. Donnelly, Maureen

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Spatial and temporal patterns of alkaloid variation in the poison frog Oophaga pumilio in Costa Rica and Panama over 30 years by Saporito, Ralph A., Donnelly, Maureen A., Jain, Poonam, Martin Garraffo, H., Spande, Thomas F., Daly, John W.

“…A total of 232 alkaloids, representing 21 structural classes were detected in skin extracts from the dendrobatid poison frog Oophaga pumilio, collected from 53…”
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Formicine ants: An arthropod source for the pumiliotoxin alkaloids of dendrobatid poison frogs by Saporito, R.A, Garraffo, H.M, Donnelly, M.A, Edwards, A.L, Longino, J.T, Daly, J.W

“…A remarkable diversity of bioactive lipophilic alkaloids is present in the skin of poison frogs and toads worldwide. Originally discovered in neotropical…”
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The criterion of reciprocal monophyly and classification of nested diversity at the species level by Kizirian, David, Donnelly, Maureen A

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Geographic and seasonal variation in alkaloid-based chemical defenses of Dendrobates pumilio from Bocas del Toro, Panama by SAPORITO, Ralph A, DONNELLY, Maureen A, GARRAFFO, H. Martin, SPANDE, Thomas F, DALY, John W

“…Poison frogs contain an alkaloid-based chemical defense that is derived from a diet of certain alkaloid-containing arthropods, which include mites, ants,…”
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Ontogenetic and seasonal variation in the diets of a Costa Rican leaf-litter herpetofauna by Whitfield, Steven M., Donnelly, Maureen A.

“…Ontogenetic and seasonal variation in diet was examined for 11 species of insectivorous forest-floor frogs and lizards from a lowland wet forest in…”
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Amphibian sensitivity to habitat modification is associated with population trends and species traits by Nowakowski, A. Justin, Todd, Brian D., Thompson, Michelle E., Donnelly, Maureen A.

“…Aim: Habitat modification is causing widespread declines in biodiversity and the homogenization of biotas. Amphibians are especially threatened by habitat…”
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importance of defining focal assemblages when evaluating amphibian and reptile responses to land use by Thompson, Michelle E, Nowakowski, A. Justin, Donnelly, Maureen A

“…Habitat loss and degradation are primary threats to amphibians and reptiles, but the relative effects of common land uses on assemblages and the mechanisms…”
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Bioactive Alkaloids of Frog Skin: Combinatorial Bioprospecting Reveals That Pumiliotoxins Have an Arthropod Source by Daly, John W., Kaneko, Tetsuo, Wilham, Jason, Garraffo, H. Martin, Spande, Thomas F., Espinosa, Alex, Donnelly, Maureen A.

“…Nearly 500 alkaloids have been detected in skin extracts from frogs of the family Dendrobatidae. All seem to have been sequestered unchanged into skin glands…”
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The influence of matrix quality on species richness in remnant forest by Reider, Ian J., Donnelly, Maureen A., Watling, James I.

“…Context Habitat destruction is the leading threat to terrestrial biodiversity, isolating remnant habitat in a matrix of modified vegetation. Objectives Our…”
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Riparian buffers provide refugia during secondary forest succession by Thompson, Michelle E., Halstead, Brian J., Donnelly, Maureen A.

“…Aim Secondary forests regenerating from human disturbance are increasingly becoming a predominant forest type in many regions, and they play a significant role…”
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