National Center for Ecological Analysis and Synthesis

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4901-4910 of 6313
  1. Publication

    Chemistry for Plastic and Harp Lakes

    Samples for chemical analysis are taken from each lake with a peristaltic pump using Tygon tubing. Samples of water are taken at 2 metre intervals, starting at 1 metre. Aliquots of that water, proportional to the volume of the stratum each depth represents are combined for the epilimnion, the metalimnion and the hypolimnion for chemical analysis. The data file PCHPCHEM.TXT contains the raw chemical data for Plastic and Harp lakes. These data are in ASCII format and tab delimited as requested.

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  2. Publication

    Chemistry for the Dorset Lakes

    Chemistry for the Dorset lakes (Blue Chalk, Chub, Crosson, Dickie, Heney, Red Chalk). Samples for chemical analysis are taken from each lake with a peristaltic pump using Tygon tubing. Samples of water are taken at 2 metre intervals, starting at 1 metre. Aliquots of that water, proportional to the volume of the stratum each depth represents are combined for the epilimnion, the metalimnion and the hypolimnion for chemical analysis. The mean annual epilimnetic data is presented in the file LAKECHEM.TXT. These data are in ASCII format and tab delimited as requested.

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  3. Publication

    Coho salmon

    This Coho salmon data is part of the population dynamics data on fish in the world put together by Dr. Randsom A. Myers and his associates. The idea behind this work is that the uncertainty of the biological basis of fisheries management can be greatly reduced by examining many data sets and combining the results by various statistical methods. Documentation, data and statistical analysis of spawners and recruitment is included.

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  4. Publication

    Coho salmon online data from Myers' stock recruitment database

    The Coho Salmon data is part of Ranson Myers Stock Recruitment Database site. The site consists of maps, plots, and numerical data relating to over 600 fish populations (over 100 species) from all over the world. Approximately 100 new populations are added per year. The purpose of this site is to compile all population dynamics data on fish in the world, so that synthetic analyses will lead to enhanced conservation and improved fisheries management.

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  5. Publication

    Determining pan-tropical patterns of liana distributions from regional datasets

    This dataset contains information on the abundance, basal area, and species identity for more than 80,000 lianas from tropical forests located in Mexico, Central and South America, Africa, and Asia. We have compiled this dataset to determine the distribution of lianas (abundance, biomass, and diversity) across large geographic regions and abiotic gradients throughout the tropics.

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  6. Publication

    Digital library of management laws: California current large marine ecosystem

    I am creating this library as part of my dissertation research project at U.C. Santa Barbara. I am using a digital integration technology (DIGIN®) to create this library, which has the functionality of a database but the capacity of a library. The international agreements and treaties, as well as the national (United States and Mexico), state (Washington, Oregon, California and Baja), and local laws and regulations are included in this library to represent governmental level management within the scope of the California Current Large Marine Ecosystem.

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  7. Publication

    Evolutionary significant units (ESU) table

    This table was shared in conjunction with a working group project to assess the usefulness of algorithms and quantitative approaches to measuring biodiversity in terms of 'taxonomic distinctiveness' or 'independent evolutionary units'. The group evaluated whether and how phylogenetic information can be used to measure species value. Specifically, they analyzied the effects of sample size, topology, branch lengths and model of evolutionary change on various quantitative measures of phylogenetic diversity.

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  8. Publication

    Foraging trait variation in Ambystoma maculatum

    Predator-prey interactions often vary markedly across natural landscapes. One explanation for this variation is local genetic differentiation of prey traits due to selection from predators. Here, I evaluated the relative contributions of selection from a gape-limited predator (Ambystoma opacum) and spatial location within a larger landscape to explanations of variation in foraging, growth, and survival in 10 populations of temporary pond breeding salamander larvae (Ambystoma maculatum).

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  9. Publication

    Geochemistry of Colorado Spring

    This data set contains a full suite of geochemistry, dissolved organic carbon, and spectral qualities of 21 stream sites in the Colorado Rockies collected from 5-2003 to 10-2003.

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  10. Publication

    Geographic range occupancy of North American birds

    Although the geographic range is a fundamental unit of analysis for many macroecological and biogeographical studies, as a representation of the spatial distribution of individuals it is clearly a scale-dependent abstraction. As any amateur naturalist realizes, a species is not guaranteed to be present at every point within the range delimited by a field guide. Geographically extensive survey data such as the North American Breeding Bird Survey (BBS) allow the characterization of distribution patterns within the geographic range.

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