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Personlig profil

Forskningsområde

Statistical eco-demography:

a. Bayesian Survival Trajectory Analysis (BaSTA).

Understanding age-specific survival in wild animal populations is crucial to the study of population dynamics and is therefore an essential component of several fields including evolution, management and conservation. BaSTA (Colchero et al. 2012) is a tool under active development which allows users to analyse age patterns of survival in long-term studies with mark-capture-recapture data where recapture probabilities may be low, and where birth and death times and age are unknown. We have extended this model to account for dispersal out of the study site (i.e. apparent mortality) (Barthold et al. 2016a and b, Colchero et al. 2016) and for the combined 

b. Age-structured stochastic population modeling:

The demography of animal populations is strongly influenced by the way individuals use their landscape. Movement is a key determinant of an individual’s fitness, allowing it to forage for resources, find mates and disperse. We are developing statistical models for animal movement to understand how animals move over the landscape, what triggers their preferences and how different landscape and environmental features affect their movement decisions. Our models combine a state-space approach to handle missing movement records, together with what we have described as Markov Chain Resource Selection (MCRS) functions to determine what features increase the probability of moving to a specific point.

We are exploring how populations with different age-specific demographic rates (i.e. survival and fecundity) respond to the environment and how this affects stochastic population growth rates. In a paper published in Ecology Letters (Colchero et al. 2019), we have found that stochastic population growth rates and their long-term averages vary dramatically as a function of the age-trajectories in survival and fecundity. Furthermore, we found that modelling these populations by grouping ages into general stages (e.g. juveniles, sub-adutls, and adults), will produce markedly different stochastic population growth rates than models that account for the full age-dependency in demographic rates.

c. Inference on animal movement:

The demography of animal populations is strongly influenced by the way individuals use their landscape. Movement is a key determinant of an individual’s fitness, allowing it to forage for resources, find mates and disperse. We are developing statistical models for animal movement to understand how animals move over the landscape, what triggers their preferences and how different landscape and environmental features affect their movement decisions. Our models (Colchero et al 2011, Plante et al. 2014) combine a state-space approach to handle missing movement records, together with what we have described as Markov Chain Resource Selection (MCRS) functions to determine what features increase the probability of moving to a specific point.

 

 

Forskningsområder

  • Økologisk modellering
  • Statistik

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Publikationer

Beyond the proportional frailty model: Bayesian estimation of individual heterogeneity on mortality parameters

Colchero, F. & Kiyakoglu, B. Y., jan. 2020, I : Biometrical Journal. 62, 1, s. 124-135

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  • Sex differences in adult lifespan and aging rates of mortality across wild mammals

    Lemaître, J-F., Ronget, V., Tidière, M., Allainé, D., Berger, V., Cohas, A., Colchero, F., Conde, D. A., Garratt, M., Liker, A., Marais, G. A. B., Scheuerlein, A., Székely, T. & Gaillard, J-M., 14. apr. 2020, I : Proceedings of the National Academy of Sciences of the United States of America. 117, 15, s. 8546-8553

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  • Sexual dimorphism in chimpanzee (Pan troglodytes schweinfurthii) and human age-specific fertility

    Muller, M. N., Blurton Jones, N. G., Colchero, F., Thompson, M. E., Enigk, D. K., Feldblum, J. T., Hahn, B. H., Langergraber, K. E., Scully, E. J., Vigilant, L., Walker, K. K., Wrangham, R. W., Wroblewski, E. E. & Pusey, A. E., jul. 2020, I : Journal of Human Evolution. 144, s. 102795 16 s.

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  • Data gaps and opportunities for comparative and conservation biology

    Conde, D. A., Staerk, J., Colchero, F., da Silva, R., Schöley, J., Baden, H. M., Jouvet, L., Fa, J. E., Syed, H., Jongejans, E., Meiri, S., Gaillard, J-M., Chamberlain, S., Wilcken, J., Jones, O. R., Dahlgren, J. P., Steiner, U. K., Bland, L. M., Gomez-Mestre, I., Lebreton, J-D. & 13 flere, González Vargas, J., Flesness, N., Canudas-Romo, V., Salguero-Gómez, R., Byers, O., Berg, T. B., Scheuerlein, A., Devillard, S., Schigel, D. S., Ryder, O. A., Possingham, H. P., Baudisch, A. & Vaupel, J. W., 7. maj 2019, I : Proceedings of the National Academy of Sciences of the United States of America. 116, 19, s. 9658–9664

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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    Performance of generation time approximations for extinction risk assessments

    Staerk, J., Conde, D. A., Ronget, V., Lemaitre, J. F., Gaillard, J. M. & Colchero, F., 1. jun. 2019, I : Journal of Applied Ecology. 56, 6, s. 1436-1446

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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    Aktiviteter

    Male-female differences in mortality and cancer incidence birds and mammals

    Johanna Stärk (Arrangør), Dalia Amor Conde (Chairman), Fernando Colchero (Arrangør), Rita Silva (Arrangør), Annette Baudisch (Deltager)
    26. jun. 201927. jun. 2019

    Aktivitet: Deltagelse i faglig begivenhedOrganisering af eller deltagelse i workshop, kursus, seminar eller lignende

    Diversity (Tidsskrift)

    Fernando Colchero (Peer reviewer)
    1. feb. 20191. okt. 2019

    Aktivitet: Redaktionelt arbejde og fagfællebedømmelseRedaktør af tidsskriftForskning

    Nature Communications (Tidsskrift)

    Fernando Colchero (Peer reviewer)
    3. jan. 2019

    Aktivitet: Redaktionelt arbejde og fagfællebedømmelsePeer reviewer/fagfællebedømmer af manuskripterForskning

    The Pace and Shape of Primate Mortality

    Fernando Colchero (Deltager)
    17. dec. 201822. dec. 2018

    Aktivitet: Deltagelse i faglig begivenhedOrganisering af eller deltagelse i workshop, kursus, seminar eller lignende

    Ecology (Tidsskrift)

    Fernando Colchero (Peer reviewer)
    30. okt. 2018

    Aktivitet: Redaktionelt arbejde og fagfællebedømmelsePeer reviewer/fagfællebedømmer af manuskripterForskning

    Projekter

    • 1 Igangværende

    Priser

    Cozzarelli Prize

    Fernando Colchero (Modtager), Roland Rau (Modtager), Owen Jones (Modtager), Julia A. Barthold (Modtager), Dalia Amor Conde (Modtager), Adam Lenart (Modtager), Laszlo Nemeth (Modtager), Alexander Scheuerlein (Modtager), Jonas Schöley (Modtager), Catalina Torres (Modtager), Virginia Zarulli (Modtager), Jeanne Altmann (Modtager), Diane K Brockman (Modtager), Anne M Bronikowski (Modtager), Linda M Fedigan (Modtager), Anne E Pusey (Modtager), Tara S Stoinski (Modtager), Karen B Strier (Modtager), Annette Baudisch (Modtager), Susan C Alberts (Modtager) & James W. Vaupel (Modtager), 2016

    Pris: Priser, stipendier, udnævnelser

  • Undervisning og vejledning

    IAST501 Individual Project in Statistics

    Fernando Colchero

    05/02/201901/06/2019

    Kursus: Undervisning

    SPMM801, Masters thesis in Applied Mathematics

    Fernando Colchero

    01/09/201801/06/2019

    Kursus: Vejledning

    ST523: Statistical Modelling

    Fernando Colchero

    01/02/201901/06/2019

    Kursus: Undervisning

    ST813: Statistical Modelling

    Fernando Colchero

    01/02/201901/06/2019

    Kursus: Undervisning