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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

Fingeraftryk Fingeraftryk er baseret på at anvende teksten fra personernes videnskabelige dokumenter til at skabe et indeks med vægtede emneordskoncepter, som definerer de vigtigste emner for hver enkelt forsker.

  • 4 Lignende profiler
senescence Geo- og miljøvidenskab
mortality Geo- og miljøvidenskab
density dependence Geo- og miljøvidenskab
Vertebrates Medicin og biovidenskab
Primates Medicin og biovidenskab
life expectancy Geo- og miljøvidenskab
Population Medicin og biovidenskab
population growth Geo- og miljøvidenskab

Netværk Nyligt eksternt samarbejde på landeniveau. Dyk ned i detaljerne ved at klikke på punkterne.

Publikationer 2008 2019

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

Colchero, F. & Kiyakoglu, B. Y., 1. okt. 2019, I : Biometrical Journal.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Frailty Model
Bayesian Estimation
Mortality
Directly proportional
Life Table
85 Downloads (Pure)

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

Åben adgang
Fil
Clutch Size
Population
Litter Size
Reptiles
Biodiversity

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

extinction risk
generation time
risk assessment
Red List
body mass
96 Downloads (Pure)

The diversity of population responses to environmental change

Colchero, F., Jones, O. R., Conde, D. A., Hodgson, D., Zajitschek, F., Schmidt, B. R., Malo, A. F., Alberts, S. C., Becker, P. H., Bouwhuis, S., Bronikowski, A. M., De Vleeschouwer, K. M., Delahay, R. J., Dummermuth, S., Fernández-Duque, E., Frisenvaenge, J., Hesselsøe, M., Larson, S., Lemaître, J-F., McDonald, J. & 12 flere, Miller, D. A. W., O'Donnell, C., Packer, C., Raboy, B. E., Reading, C. J., Wapstra, E., Weimerskirch, H., While, G. M., Baudisch, A., Flatt, T., Coulson, T. & Gaillard, J-M., feb. 2019, I : Ecology Letters. 22, 2, s. 342-353

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang
Fil
environmental change
population growth
demographic statistics
fecundity
population dynamics

Better the devil you know: common terns stay with a previous partner although pair bond duration does not affect breeding output

Rebke, M., Becker, P. H. & Colchero, F., 2017, I : Royal Society of London. Proceedings B. Biological Sciences. 284, 1846, 2016.1424.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang
Pair Bond
pair bond
Bond length
Laridae
reproductive performance

Aktiviteter 2012 2019

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

Methods in Ecology and Evolution (Tidsskrift)

Fernando Colchero (Peer reviewer)
23. okt. 2018

Aktivitet: Redaktionelt arbejde og fagfællebedømmelsePeer reviewer/fagfællebedømmer af manuskripterForskning

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

science

Undervisning og vejledning

IAST501 Individual Project in Statistics

Fernando Colchero

05/02/201901/06/2019

Kursus: Undervisning

ST523: Statistical Modelling

Fernando Colchero

01/02/201901/06/2019

Kursus: Undervisning

SPMM801, Masters thesis in Applied Mathematics

Fernando Colchero

01/09/201801/06/2019

Kursus: Vejledning

ST813: Statistical Modelling

Fernando Colchero

01/02/201901/06/2019

Kursus: Undervisning