Results 221 to 230 of about 1,465,309 (266)

Species Distribution

ACADEMIA. The magazine of the Polish Academy of Sciences, 2022
How can we best describe the living space of given species? Are geographical criteria sufficient, or do we need more dimensions to specify an ecological niche? What can we learn from such analyses?
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Modeling Species Distribution

2011
The results show that among the three approaches, the potentially suitable habitats derived from cartographic overlay cover the largest area and are likely to overestimate existing occurrence areas. The logistic regression model predicts approximately 56% as suitable area, while maximum entropy results covers approximately 9% of the sanctuary. Although
Trisurat, Yongyut, Toxopeus, A.G.
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Species Distribution of J Chain

The Journal of Immunology, 1971
Abstract A polypeptide chain, other than the heavy and light chains and the secretory component, has been observed in secretory immunoglobulin A (IgA) of both rabbit (1) and human (2) origin. This J chain, as it is called, is readily detectable as a fast-moving band on alkaline-urea disc electrophoresis gels of L-chain fractions from ...
P F, Weinheimer, J, Mestecky, R T, Acton
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Species Frequency Distributions

Biometrika, 1969
This paper deals with the branch of statistical ecology which studies the pattern of variation in the abundances of the different species present in a habitat, as distinct from the actual abundances of a fixed set of species. Much of the work in this field has been done by ecologists, the leading contributor being C. B.
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Species Distribution of Gastrointestinal Antigens

Nature, 1966
IMMUNOFLUORESCENCE provides a simple means of studying the species distribution of antigenic components of animal tissues1. The availability of gastrointestinal-specific antisera as immunohistological reagents prompted us to explore the distribution of gastrointestinal antigens in mammalian and other vertebrate fauna of Australia.
R C, Nairn, W G, De Boer
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Ensemble forecasting of species distributions

Trends in Ecology & Evolution, 2007
Concern over implications of climate change for biodiversity has led to the use of bioclimatic models to forecast the range shifts of species under future climate-change scenarios. Recent studies have demonstrated that projections by alternative models can be so variable as to compromise their usefulness for guiding policy decisions.
Miguel B, Araújo, Mark, New
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Species distributions and area relationships

Journal of Theoretical Biology, 2014
The well-known species-area relationship is one of many scaling laws, or allometries, in ecology and biology that have received much attention over the years. We present a new derivation of this relationship based on Yule׳s theory of evolution of species.
Thompson, C. J., Lee, T. E., McCarthy, M. A.   +2 more
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The checkerboard score and species distributions

Oecologia, 1990
There has been an ongoing controversy over how to decide whether the distribution of species is "random" - i.e., whether it is not greatly different from what it would be if species did not interact. We recently showed (Roberts and Stone (1990)) that in the case of the Vanuatu (formerly New Hebrides) avifauna, the number of islands shared by species ...
Lewi, Stone, Alan, Roberts
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Distribution of vespid species in Europe

Current Opinion in Allergy & Clinical Immunology, 2004
Knowledge of the different stinging vespids found in various parts of Europe and their venom cross-reactivity is important in order to improve the venoms available for diagnostic and therapeutic purposes.In recent years the amino acid sequences of different vespid venom allergens have been determined.
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