Search Results - "Martinez Del Rio, Carlos"

Dietary and isotopic specialization: the isotopic niche of three Cinclodes ovenbirds by Martínez del Rio, Carlos, Sabat, Pablo, Anderson-Sprecher, Richard, Gonzalez, Sandra P

“…By comparing the isotopic composition of tissues deposited at different times, we can identify individuals that shift diets over time and individuals with…”
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Isotopic niches support the resource breadth hypothesis by Rader, Jonathan A., Newsome, Seth D., Sabat, Pablo, Chesser, R. Terry, Dillon, Michael E., del Rio, Carlos Martínez

“…1. Because a broad spectrum of resource use allows species to persist in a wide range of habitat types, and thus permits them to occupy large geographical…”
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Beyond the reaction progress variable: the meaning and significance of isotopic incorporation data by MARTINEZ DEL RIO, Carlos, ANDERSON-SPRECHER, Richard

“…Ecologists conduct isotopic incorporation experiments to determine the residence time of various stable isotopes in animal tissues. These experiments permit…”
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Information theory and hypothesis testing: a call for pluralism by Stephens, P.A, Buskirk, S.W, Hayward, G.D, Martinez del Rio, C

“…1. A major paradigm shift is occurring in the approach of ecologists to statistical analysis. The use of the traditional approach of null-hypothesis testing…”
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Effects of Elemental Composition on the Incorporation of Dietary Nitrogen and Carbon Isotopic Signatures in an Omnivorous Songbird by Pearson, Scott F., Levey, Douglas J., Greenberg, Cathryn H., del Rio, Carlos Martínez

“…The use of stable isotopes to infer diet requires quantifying the relationship between diet and tissues and, in particular, knowing of how quickly isotopes…”
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Metabolic theory or metabolic models? by del Rio, Carlos Martínez

“…The metabolic theory of ecology (MTE) claims to derive ecological relationships from the structure of resource distribution networks, which is assumed to…”
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niche for isotopic ecology by Newsome, Seth D, Carlos Martinez del Rio, Stuart Bearhop, Donald L. Phillips

“…Fifty years ago, GE Hutchinson defined the ecological niche as a hypervolume in n‐dimensional space with environmental variables as axes. Ecologists have…”
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Modeling the distribution of Norway rats (Rattus norvegicus) on offshore islands in the Falkland Islands by Tabak, Michael A., Poncet, Sally, Passfield, Ken, Martinez del Rio, Carlos

“…Non-native rats (Rattus spp. ) threaten native island species worldwide. Efforts to eradicate them from islands have increased in frequency and become more…”
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Isotopic ecology ten years after a call for more laboratory experiments by Martínez del Rio, Carlos, Wolf, Nathan, Carleton, Scott A., Gannes, Leonard Z.

“…About 10 years ago, reviews of the use of stable isotopes in animal ecology predicted explosive growth in this field and called for laboratory experiments to…”
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Intake Responses in Nectar Feeding Birds: Digestive and Metabolic Causes, Osmoregulatory Consequences, and Coevolutionary Effects by del Rio, Carlos Martínez, Schondube, Jorge E., Todd J. Mc Whorter, L. Gerardo Herrera

“…Nectar-feeding vertebrates respond to variation in nectar sugar content by modulating volumetric intake. In some nectar feeding animals, the intake response to…”
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Hummingbirds Fuel Hovering Flight with Newly Ingested Sugar by Welch Jr, Kenneth C., Bakken, Bradley Hartman, Martínez del Rio, Carlos, Suarez, Raul K.

“…We sought to characterize the ability of hummingbirds to fuel their energetically expensive hovering flight using dietary sugar by a combination of…”
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Using stable isotopes in hummingbird breath to estimate reliance on supplemental feeders by Wolf, Nathan, Smeltz, T. Scott, Cook, Craig, Martinez del Rio, Carlos

“…Understanding the ecological consequences of supplemental feeding to both hummingbirds and the plants they pollinate is complicated by logistical challenges…”
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Growth and catabolism in isotopic incorporation: a new formulation and experimental data by Carleton, Scott A, del Rio, Carlos Martinez

“…1. We propose a new model that uses an organism's change in mass to estimate isotope incorporation rates. Our model is a re-parameterization of a widely used…”
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Allocation to Reproduction in a Hawkmoth: A Quantitative Analysis Using Stable Carbon Isotopes by O'Brien, Diane M., Schrag, Daniel P., del Rio, Carlos Martinez

“…There is great interest in the importance of nectar nutrients to fecundity in the Lepidoptera, but nutrient allocation has been difficult to measure…”
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A new method to track seed dispersal and recruitment using ¹⁵N isotope enrichment by Carlo, Tomás A., Tewksbury, Joshua J., Río, Carlos Martínez del

“…Seed dispersal has a powerful influence on population dynamics, genetic structuring, evolutionary rates, and community ecology. Yet, patterns of seed dispersal…”
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Osmoregulatory Capacity and the Ability to Use Marine Food Sources in Two Coastal Songbirds (Cinclodes: Furnariidae) along a Latitudinal Gradient by Sabat, Pablo, Maldonado, Karin, Fariña, Jose Miguel, Rio, Carlos Martínez del

“…Cinclodes nigrofumosus and C. oustaleti are two closely related songbirds that inhabit the northern Chilean coast during the austral fall and winter. This…”
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Variation in mistletoe seed deposition: effects of intra- and interspecific host characteristics by Aukema, Juliann Eve, Del Rio, Carlos Martínez

“…We investigated differences in host infection by a desert mistletoe, Phoradendron californicum, and examined one of the processes that contributes to these…”
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Ten years of experimental animal isotopic ecology by Wolf, Nathan, Carleton, Scott A, Martínez del Rio, Carlos

“…1. Ten years ago Gannes et al. (1997 , Stable isotopes in animal ecology: assumptions, caveats, and a call for laboratory experiments. Ecology, 78, 1271-1276,…”
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The Fate of Carbon in Growing Fish: An Experimental Study of Isotopic Routing by Kelly, Leona J., Martínez del Rio, Carlos

“…The application of stable isotope analysis to ecology requires estimating the contribution of different isotopic sources to the isotopic signatures of an…”
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The Metabolic Basis of Whole-Organism RNA and Phosphorus Content by Gillooly, James F., Allen, Andrew P., Brown, James H., Elser, James J., del Rio, Carlos Martinez, Savage, Van M., West, Geoffrey B., Woodruff, William H., Woods, H. Arthur, Mimi A. R. Koehl

“…Understanding the storage, flux, and turnover of nutrients in organisms is important for quantifying contributions of biota to biogeochemical cycles. Here we…”
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