Publicación: PROBABILISTIC MODEL FOR EXPLAIN SPATIAL DISTRIBUTION IN ECHINOLITTORINA PERUVIANA (LAMARCK, 1822) IN ROCKY SHORE (23°S, ANTOFAGASTA, CHILE)
Fecha
2025
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ACTA ZOOLÓGICA LILLOANA
Resumen
THE SPATIAL PATTERNS IN BENTHIC FLORA AND FAUNA HAVE THREE PATTERNS RANDOM, UNIFORM AND AGGREGATED. USUALLY MODELS TO FIT THIS ARE THE POISSON, BINOMIAL OR NEGATIVE BINOMIAL DISTRIBUTIONS, RESPECTIVELY. HOWEVER, FOR SPECIFIC CASES SUCH MODELS CANNOT BE APPROPRIATED. THE AIM OF THE PRESENT STUDY IS ANALYSE DATA OF GASTROPOD ECHINOLITTORINA PERUVIANA (LAMARCK, 1822) OBTAINED IN ROCKY SHORE OF ANTOFAGASTA NORTH OF CHILE, WITH THE AIM OF DETERMINE A REASONABLE MODEL FOR EXPLAIN ITS SPATIAL DISTRIBUTION. THE RESULTS REVEALED THAT INDIVIDUALS HAVE AN AGGREGATED PATTERN, BUT NOT ALL POPULATIONS HAVE NEGATIVE BINOMIAL DISTRIBUTION, AND IT WAS PROCEEDED TO DETERMINE AN ALTERNATIVE MODEL TO THE NEGATIVE BINOMIAL DISTRIBUTIONS FAMILY TO EXPLAIN THE SPATIAL DISTRIBUTION.
THE RESULTS REVEALED THAT POPULATION DISTRIBUTION CAN BE ADJUSTED TO A
WARING MODEL. THESE RESULTS WOULD AGREE WITH LITERATURE DESCRIPTIONS THAT NEGATIVE BINOMIAL DISTRIBUTION IS NOT THE EXCLUSIVE PATTERN THAT CAN EXPLAIN THE AGGREGATED PATTERN IN GREGARIOUS SPECIES.
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Echinolittorina peruviana, rocky shore, aggregated pattern, negative binomial distribution, Waring distribution
