Showing papers on "Biological data published in 1972"
TL;DR: A qualitative modeling approach to the analysis of data representing the uptake of acetylcholine by synaptic vesicles is presented, and it is demonstrated that a number of properties of that biological process can be determined from what would normally be considered rather poor data.
Abstract: SUMMARY Biological data, either by convenience or necessity, are often characterized by large spread, small sample size, non-stationarity, and other qualities that make it difficult or impossible to apply conventional statistical methods of analysis. This paper presents a qualitative modeling approach to the analysis of such data. The technique is illustrated by the analysis of data representing the uptake of acetylcholine by synaptic vesicles, and it is demonstrated that a number of properties of that biological process can be determined from what would normally be considered rather poor data. In particular, it is shown that a deterministic model in this case appears to be insufficient to represent the system and that at least two types of randomness are involved.
6 citations
TL;DR: In this article, the distribution of species in time or space, and along salintiy, temperature, and depth gradients, is analyzed using a standard coding form for biological data to enable community structure or discrimination analysis.
Abstract: This system was originally designed to provide a standard coding form for biological data to be used for community structure or discrimination analysis. We now hope to enter in a single data bank all collection data in which species are identified and enumerated. In addition to a package of programs for species diversity, faunal homogeneity, and other biotic indices, we plan to eventually develop sorting programs which will permit analyses of the distribution of species in time or space, and along salintiy, temperature, and depth gradients. As data accumulate in the bank it may be possible to document historic changes in the distribution and abundance of the Bay biota.
1 citations
1 Jan 1972
TL;DR: In this paper, the authors outline some of the measuring and sampling techniques used at sea to obtain information of interest to ecologists, including measurements of water movement, temperature, composition, illumination and depth, and the nature of the sea bottom.
Abstract: In this chapter we will outline briefly some of the measuring and sampling techniques used at sea to obtain information of interest to ecologists. To evaluate the interactions between organisms and their environment, both oceanographic and biological data are required. Oceanographic data relate to the inorganic parameters of the environment, including measurements of water movement, temperature, composition, illumination and depth, and the nature of the sea bottom. Biological data relate to the distribution, numbers, activities and relationships of organisms in different parts of the sea. In order to collect this range of information, a great variety of apparatus has been devised. Only a few widely used methods are described here to give a general indication of available techniques.