Dear MARMAM community, On behalf of my former student, MSc Israel Huesca-Dominguez, I am pleased to announce the publication of his thesis "Variation and sensitivity of residency and site fidelity estimates for dolphin capture-recapture data”, which was successfully defended last September.
The resulting scientific manuscripts of the chapters of his thesis will soon be available; thus we will let you know the electronic links for proper citation. In the meantime, please follow the link to have full access to his (translated) thesis (in English): (PDF) Variation and sensitivity of residency and site fidelity estimates for dolphin capture-recapture data <https://www.researchgate.net/publication/365186128_Variation_and_sensitivity_of_residency_and_site_fidelity_estimates_for_dolphin_capture-recapture_data> researchgate.net <https://www.researchgate.net/publication/365186128_Variation_and_sensitivity_of_residency_and_site_fidelity_estimates_for_dolphin_capture-recapture_data> <https://www.researchgate.net/publication/365186128_Variation_and_sensitivity_of_residency_and_site_fidelity_estimates_for_dolphin_capture-recapture_data> Cita (SP): Huesca-Domínguez I. 2022. Variación y sensibilidad de estimaciones de residencia y fidelidad al sitio para datos de captura-recaptura en delfines. Tesis de Maestría en Biología Integrativa. Cum laude. Instituto de Investigaciones Biológicas Universidad Veracruzana. Xalapa Veracruz. 100 pp. 27 de septiembre de 2022. Citation (EN): Huesca-Domínguez I. 2022. Variation and sensitivity of residency and site fidelity estimates for dolphin capture-recapture data. Thesis. Cum laude. Master in Integrative Biology. Instituto de Investigaciones Biológicas Universidad Veracruzana. Xalapa Veracruz. 100 pp. September 27th, 2022 You may find the abstract below. Abstract: Residency and site fidelity are important parameters in the population ecology of many species as they indicate temporal and spatial use of individuals. Cetaceans with well-defined patterns of residency and site fidelity may be more vulnerable to anthropogenic disturbances and the study of these parameters makes it possible to assess such impacts. However due to interspecific differences and logistical restrictions for the study of cetaceans there is no consensus on the definitions and ways to evaluate these parameters. This project investigated the factors that influence measurements of residency and site fidelity in dolphins through a retrospective ~20 year (1990-2019) literature review. Simulations of capture-recapture histories based on real scenarios of wild populations of dolphins were used to evaluate residency metrics by varying the parameters in a JollySeber model. We found 30 indicators of residency where 20 were based on capture-recapture data and 8 contained categories. These main differences were associated with patterns of temporal use and the thresholds for classifying individuals. Simulations showed sensitivity to different survival estimates in addition to those of already known catchability. Indicators of site fidelity were more consistent with each other and the best performing indicators of residency combined monthly seasonal and annual data. These findings show the need for paradigm shifts to create comprehensive standardized and generalized definitions of residency which can be compared across different populations of marine mammals around the world. Kind regards, Dr. Eduardo Morteo Director Instituto de Investigaciones Biológicas Universidad Veracruzana Calle Dr. Castelazo Ayala S/N, Col. Industrial Ánimas CP 91190, Xalapa, Veracruz, México. Ph/Tel: +52 (228) 841 89 00 E-mail: emor...@uv.mx http://www.uv.mx/personal/emorteo/ http://uv-mx.academia.edu/EMorteo https://www.researchgate.net/profile/Eduardo_Morteo/?ev=hdr_xprf http://scholar.google.com.mx/citations?user=fDUl-IIAAAAJ
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