Global ETD Search
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Showing 1 to 7 of 7 for “"isoscapes"”.
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The Spatial Distribution of Terrestrial Stable Carbon Isotopes in North America, and the Impacts of Spatial and Temporal Resolution on Static Ecological Models
… terrestrial stable carbon isotopic landscapes (isoscapes). I model the distribution of leaf stable carbon isotope composition (delta<sup>13</sup>C) for the continent of North America at multiple temporal and spatial resolutions. I generate each delta<sup>13</sup>C isoscape variation by first …
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Badgers as a proxy for environmental exposure to potentially toxic elements and ecosystem level interactions in soils
… in tissues from ratios in interpolated soil isoscapes. In turn, Badgers were shown to accumulate PTEs readily and accumulate them in their tissues readily through both bioaccumulative (accumulation through the food chain) and bioaccessible (accumulation from the environment) pathways, the …
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The movement ecology of common bream Abramis brama in a highly connected wetland using acoustic telemetry.
… The efficacy of single versus dual-isotope isoscapes in predicting the foraging locations of roach Rutilus rutilus was compared, with the dual-isoscape approach emerging as the most efficient. Dual-isoscapes were then applied to predicting the movement distances of individual bream in …
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Plankton dynamics of the open Southern Ocean and surrounding the (Sub)Antarctic islands
… using circum-Antarctic carbon and nitrogen isoscapes. Along with the drivers commonly invoked by previous studies, I further determined a relationship between the δ13C and δ15N of suspended particulate matter (SPM) and phytoplankton community composition, with diatoms exerting a particularly …
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Assessing adaptive winter behaviors of beneficial arthropods, with a focus on the long-distance migratory ecology of Nearctic hover flies (Diptera: Syrphidae)
… in northern Alabama. I built hover fly δ2H isoscapes using a calibration algorithm of water and hover fly tissues. I then used these isoscapes to assign grouped natal origins of hover flies using an IsoriX workflow. Consistent with Chapter 1, Eu. americanus was highly migratory whereas A. …
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Dynamics of baseline stable isotopes within a temperate coastal ecosystem: Relationships and projections using physical and biogeochemical factors
Measurements of carbon (13C/12C; δ13C) and nitrogen (15N/14N; δ15N) stable isotope ratios have become important tools for: estimating energy flow and trophic positions in aquatic foodwebs; comparing food webs; and aiding in the tracking of wide-ranging consumers. However, each of these applications …