Age–dependent capture–recapture models and unequal time intervals
Estimates of survival probabilities in natural populations can be obtained through capture–mark–recapture (CMR) models. However, when capture sessions are unevenly spaced, age–dependent models can lead to erroneous estimates of survival when individuals change age class during the time interval betw...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Museu de Ciències Naturals de Barcelona
2019-06-01
|
| Series: | Animal Biodiversity and Conservation |
| Subjects: | |
| Online Access: | http://abc.museucienciesjournals.cat/volume-42-1-2019-abc/age-dependent-capture-recapture-models-and-unequal-time-intervals/?lang=en |
| _version_ | 1828523756244434944 |
|---|---|
| author | Sanz-Aguilar, A. Pradel, R. Tavecchia, G. |
| author_facet | Sanz-Aguilar, A. Pradel, R. Tavecchia, G. |
| author_sort | Sanz-Aguilar, A. |
| collection | DOAJ |
| description | Estimates of survival probabilities in natural populations can be obtained through capture–mark–recapture (CMR) models. However, when capture sessions are unevenly spaced, age–dependent models can lead to erroneous estimates of survival when individuals change age class during the time interval between two capture occasions. We propose a solution to correct for the mismatch between time intervals and age class duration in two age class models. The solution can be implemented in different ways. The first consists of adding dummy occasions to the encounter histories and fixing the corresponding recapture probabilities at zero. The second makes use of the log–link function available in some CMR software (e.g. program MARK). We used simulated and real data to show that the proposed solution delivers unbiased estimates of age–dependent survival probabilities. |
| first_indexed | 2024-12-11T20:33:38Z |
| format | Article |
| id | doaj.art-a229be78092b4e3bbcfd26f52f805c76 |
| institution | Directory Open Access Journal |
| issn | 1578-665X |
| language | English |
| last_indexed | 2024-12-11T20:33:38Z |
| publishDate | 2019-06-01 |
| publisher | Museu de Ciències Naturals de Barcelona |
| record_format | Article |
| series | Animal Biodiversity and Conservation |
| spelling | doaj.art-a229be78092b4e3bbcfd26f52f805c762022-12-22T00:51:43ZengMuseu de Ciències Naturals de BarcelonaAnimal Biodiversity and Conservation1578-665X2019-06-01421919810.32800/abc.2019.42.0091Age–dependent capture–recapture models and unequal time intervalsSanz-Aguilar, A. Pradel, R. Tavecchia, G.Estimates of survival probabilities in natural populations can be obtained through capture–mark–recapture (CMR) models. However, when capture sessions are unevenly spaced, age–dependent models can lead to erroneous estimates of survival when individuals change age class during the time interval between two capture occasions. We propose a solution to correct for the mismatch between time intervals and age class duration in two age class models. The solution can be implemented in different ways. The first consists of adding dummy occasions to the encounter histories and fixing the corresponding recapture probabilities at zero. The second makes use of the log–link function available in some CMR software (e.g. program MARK). We used simulated and real data to show that the proposed solution delivers unbiased estimates of age–dependent survival probabilities.http://abc.museucienciesjournals.cat/volume-42-1-2019-abc/age-dependent-capture-recapture-models-and-unequal-time-intervals/?lang=enage–dependent modelscapture–mark–recapturemissing datasurvival probability |
| spellingShingle | Sanz-Aguilar, A. Pradel, R. Tavecchia, G. Age–dependent capture–recapture models and unequal time intervals Animal Biodiversity and Conservation age–dependent models capture–mark–recapture missing data survival probability |
| title | Age–dependent capture–recapture models and unequal time intervals |
| title_full | Age–dependent capture–recapture models and unequal time intervals |
| title_fullStr | Age–dependent capture–recapture models and unequal time intervals |
| title_full_unstemmed | Age–dependent capture–recapture models and unequal time intervals |
| title_short | Age–dependent capture–recapture models and unequal time intervals |
| title_sort | age dependent capture recapture models and unequal time intervals |
| topic | age–dependent models capture–mark–recapture missing data survival probability |
| url | http://abc.museucienciesjournals.cat/volume-42-1-2019-abc/age-dependent-capture-recapture-models-and-unequal-time-intervals/?lang=en |
| work_keys_str_mv | AT sanzaguilara agedependentcapturerecapturemodelsandunequaltimeintervals AT pradelr agedependentcapturerecapturemodelsandunequaltimeintervals AT tavecchiag agedependentcapturerecapturemodelsandunequaltimeintervals |