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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/12764

Title: Improving biodiversity monitoring by modeling relative abundance from "presence only" data
Authors: Jingwa Awungnjia, Brian
Advisors: MOLENBERGHS, Geert
Issue Date: 2011
Publisher: tUL Diepenbeek
Abstract: One of the greatest concerns of this age is finding definitive ways to curb the loss of biodiversity. Although there have been growing calls on biodiversity protection and conservation by governments and institutions, the challenge lies on fitting models that best explain the trends of target species over space and time. The objective of this project was to determine the probability of detection of four species and how it changes with time during the season. Also, the occupancy of each species and its relationship with abundance was obtained. Site-occupancy models were fitted to the data, with each model having four components; occupancy, colonization, extinction and detection probability. Model selection was done on the basis of the AIC criterion. The results show different trends for each species over time. The occupancies of each species do reflect the abundances in the various stages of their life cycles. The colonization, extinction and detection probability estimates were
Notes: master of Statistics-Epidemiology & Public Health Methodology
URI: http://hdl.handle.net/1942/12764
Category: T2
Type: Theses and Dissertations
Appears in Collections: Master theses

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