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Species assemblage comparison with abundance-based data using zeroinflated Poisson mixtures. (English) Zbl 06202704

Summary: Species assemblage comparison is important in many ecological studies. In this paper, we develop a novel test for comparing species assemblages when abundance data from multiple quadrats are available. The test is based on the zero-inflated Poisson mixture model which we introduce to characterize the species assemblage given abundance data from multiple quadrats. We present a simulation study to evaluate the performance of our proposed test. The application of our test is further demonstrated on an ecological dataset.

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