Abundance and trends
Distribution, abundance and trends in abundance of fin and humpback whales in the North Atlantic
... catches, abundance and biological parameters is used in a model to attempt to replicate past population trends, and to forecast future abundance under various catch ...
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CiteSeerX — Trends in abundance and biological characteristics of chum
... These trends in abundance and biological characteristics correlated with ocean ...the abundance and biological characteristics of chum salmon both in the ocean and in ...
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OIL ABUNDANCE AND ECONOMIC GROWTH: A SIMPLE ANALYSIS OF ECONOMIC TRENDS
... the abundance of the oil resource will influence economic growth, the perceived ambiguity of the nature of this impact has constituted, in recent times, a source of debate amongst economic ...economic ...
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Characterizing Spatiotemporal Trends in Amphibian Abundance Using Latent Variable Models.
... Visual inspection of Figure 2.5 reveals patterns for a few species. For example, for Pfer, the proportion of sites with zeros increases over time in several states including Delaware, Maryland, New Jersey, and Virginia. ...
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Grey and harbour seals in France : distribution at sea, connectivity and trends in abundance at haulout sites
... relative abundance of both species were investigated along the French coast of the English Channel, at the southern limit of their range where seal numbers are ...Channel. Trends in maximum haulout numbers ...
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Inter annual and seasonal trends in cetacean distribution, density and abundance off southern California
... and abundance, and to investigate cetacean distribution patterns relative to habitat ...annual trends in occurrence, distribution and density for the six most frequently sighted species of cetaceans off ...
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Inter-annual and seasonal trends in cetacean distribution, density and abundance off southern California
... and abundance, and to investigate cetacean distribution patterns relative to habitat ...annual trends in occurrence, distribution and density for the six most frequently sighted species of cetaceans off ...
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The GALAH survey: verifying abundance trends in the open cluster M67 using non-LTE modelling
... an abundance analysis of seven elements (Li, O, Na, Mg, Al, Si, and Fe) in 66 stars belonging to the open cluster M67, based on high resolution GALAH spectra, 1D MARCS model atmospheres, and non-local ...
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The Changing Abundance of Moths in a Tussock Grassland, 1962- 1989, and 50-Year to 70-Year Trends
... fauna; abundance; population trends; light-trapping; grasslands; Agrostis; polyphagy; ...insect trends has been noted (White, 1987), these are merely a pointer to faunal history over recent ...
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Quantifying range-wide variation in population trends from local abundance surveys and widespread opportunistic occurrence records
... population trends from local abundance surveys and widespread opportunistic occurrence ...(or abundance) influences the detectability of a species’ ...
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Harbour seal (Phoca vitulina) abundance within the Firth of Tay and Eden Estuary, Scotland : recent trends and extrapolation to extinction
... Harbour seal ( Phoca vitulina ) abundance within the Firth of Tay and Eden estuary, Scotland: recent trends and.. extrapolation to extinction.[r] ...
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ESTIMATING MOOSE ABUNDANCE AND TRENDS IN NORTHEASTERN WASHINGTON STATE: INDEX COUNTS, SIGHTABILITY MODELS, AND REDUCING UNCERTAINTY
... mate abundance, obviating the need to develop a local model? We did not attempt to validate or recalibrate any one model, but reasoned that a first approximation to answering the question of generalizability would ...
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Abundance Ratio Trends and Nucleosynthesis in Elliptical Galaxies and Spheroids
... different abundance ratios in different environments must be linked to different kinds of supernova or other en- richment ...an abundance pattern that shifts with overall ...the abundance ratios in ...
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Spatiotemporal trends and relationships in the abundance, growth, and condition of common nearshore fishes of southwest Lake Michigan
... higher abundance of round goby in a rocky location compared to a sandy area likely indicates that their density is related to the availability of large, rocky substrate necessary for spawning and ...
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The harbour porpoise <i>Phocoena phocoena</i> in the Belgian part of the North Sea: trends in abundance and distribution
... TABLE 1 Results of the aerial surveys for marine mammals - overview of the observations of harbour porpoises: number of groups (number of animals) and estimates of the average group size (individuals, 95% Confidence ...
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Trends and indicators for quantifying moth abundance and occupancy in Scotland
... the abundance indicator presented suggests a clear signal, some caution is needed given the relatively small number of traps within the RIS network in Scotland, and the tendency for the counts to be ...occupancy ...
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Trends and indicators for quantifying moth abundance and occupancy in Scotland
... species-level trends and multi-species indicators for moths in Scotland, to assess population (abundance) and distribution (occupancy) ...changes. Abundance trends for moths in Scotland are ...
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Trends in sandeel growth and abundance off the east coast of Scotland
... Next, abundance-at-length-and-age matrices of sandeels caught by trawling were multiplied by the appropriate correction factors defined above to give abundance-at-age-and-length of sandeels in the study ...
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Trends of Abundance of Salton Sea Fish: A Reversible Collapse or a Permanent Condition?
... Comparisons of CPUEs were made in this study among the years 1999, 2000, 2003-2008 by sampling area to show the magnitude of change in fish abundance with time. Only the most common species during the span of data ...
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Abundance Annex: Ape Population Abundance Estimates
... Notes on Tables 5 and 9: Gorillas are often sympatric with chimpanzees, meaning that they occupy the same geographic range. Biologists who survey great apes usually count their nests as proxies for the apes themselves; ...
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