Experimental determination of predation intensity in an intertidal predator guild: dominant versus subordinate prey

Article Abstract:

Quantitative estimates of predation intensity by different predator species are necessary to understand the dynamics of the system and to make recommendations about conservation and resource management. An experiment to evaluate the per capita and population level components of predation intensity of three intertidal predators is discussed.

Environmental Management, Administration of Environmental Quality Programs, Labor Distribution by Employer, Conservation & Land Mgmt-Total Govt, Statistics, Predation (Biology), Environmental protection

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Comparing species richness among assemblages using sample units: why not use extrapolation methods to standardize different sample sizes?

Article Abstract:

The reliability of 11 potential extrapolation methods over a range of different data sets and magnitudes of extrapolation are described. The application of extrapolation techniques to smaller samples prevents loss of information.

Estimation theory, Species, Species (Biology)

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On principles, laws and theory in population ecology

Article Abstract:

The nature of principles, laws and theory in population ecology is described. The relation of ecology to the physical sciences is discussed.

Research and Development in the Physical, Engineering, and Life Sciences, Physical Sciences, Ecological integrity

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