The main database (in Access) comprises visual on-the-ground sightings by (over the years) sixteen observers of (now) 53 elephants families (ca. 2000 known individuals) of the Amboseli elephant population from September 1972 until the present.
Although numerous short-term experiments have been used to develop conceptual and simulation models of decomposition, very little is known about the later stages of this process. Exclusion of this later stage has led, at best, to incomplete understanding of ecosystem carbon and nitrogen dynamics. This working group examined the wealth of litter and decomposition data that has been produced by several recent long-term field experiments.
Data on richness and abundance of three taxonomic groups (ants, birds, and trees) were collected in coffee agroecosystems (varying in management style) and nearby forest fragments in Mesoamerica and South America to assess the impact of coffee management intensification on biodiversity. Original data were collected in several regions/countries including Mexico (Veracruz, Chiapas, Soconusco), Guatemala, Peru, Colombia, and Nicaragua. Data were collected in several different projects by the co-owners of the data, but were generally collected between 1993-2006.
I am interested in intra-specific variability in life histories and while at NCEAS will use bluefish, Pomatomus saltatrix, a globally-distributed and harvested species, to quantify the degree of local adaptation across populations. I will first review ecological and fisheries data from global bluefish populations and use genetic data to produce a DNA-based species phylogeny. I will then use a comparative analysis to separate life history traits across populations to account for phylogenetic effects and thus isolate environmental and fishing effects
This table contains the average abundance of Bythotrephes (#/m3), in each barb class, in Harp Lake. The data are the average of ten randomly selected stations on each date.
We studied the population dynamics of the plant at four sites at annual censuses, 1982-1987, during the rainy season (June-October) to determine spatial and temporal variability in vital rates and in sensitivity of population growth. Results of general interest included that among the 16 population projection matrices constructed for the 4 year × 4 site combinations, the ones with the highest growth rates had higher sensitivity to transitions of early stages.
Weighted areal density of chaoborus larvae in the DORSET lakes. Data are # of larvae per m^2, correcting for areas of the two sampling strata.There are three species, and a potential for 4 instars of each, called CI to CIV. The data set is called chaob.cvs.
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.
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.
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.