Skip to content

Research at St Andrews

Mixture models for distance sampling detection functions

Research output: Contribution to journalArticle

Abstract

We present a new class of models for the detection function in distance sampling surveys of wildlife populations, based on finite mixtures of simple parametric key functions such as the half-normal. The models share many of the features of the widely-used “key function plus series adjustment” (K+A) formulation: they are flexible, produce plausible shapes with a small number of parameters, allow incorporation of covariates in addition to distance and can be fitted using maximum likelihood. One important advantage over the K+A approach is that the mixtures are automatically monotonic non-increasing and non-negative, so constrained optimization is not required to ensure distance sampling assumptions are honoured. We compare the mixture formulation to the K+A approach using simulations to evaluate its applicability in a wide set of challenging situations. We also re-analyze four previously problematic real-world case studies. We find mixtures outperform K+A methods in many cases, particularly spiked line transect data (i.e., where detectability drops rapidly at small distances) and larger sample sizes. We recommend that current standard model selection methods for distance sampling detection functions are extended to include mixture models in the candidate set.
Close

Details

Original languageEnglish
Article numbere0118726
Number of pages19
JournalPLoS One
Volume10
Issue number3
DOIs
Publication statusPublished - 20 Mar 2015

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Distance sampling in R

    Miller, D. L., Rexstad, E., Thomas, L., Marshall, L. & Laake, J. L., 9 May 2019, In : Journal of Statistical Software. 89, 1, 28 p.

    Research output: Contribution to journalArticle

  2. Estimating group size from acoustic footprint to improve Blainville’s beaked whale abundance estimation

    Jorge, P. A., Marques, T. A., Mouriño, H., Thomas, L., Moretti, D. J., Dolan, K., Claridge, D. & Dunn, C., 31 Jul 2019, (Accepted/In press) In : Applied Acoustics .

    Research output: Contribution to journalArticle

  3. Decline towards extinction of Mexico's vaquita porpoise (Phocoena sinus)

    Jaramillo-Legorreta, A., Cardenas-Hinojosa, G., Nieto-Garcia, E., Rojas-Bracho, L., Thomas, L., Ver Hoef, J. M., Moore, J., Taylor, B., Barlow, J. & Tregenza, NI., 31 Jul 2019, In : Royal Society Open Science. 6, 7, 11 p., 190598.

    Research output: Contribution to journalArticle

  4. Density and distribution of western chimpanzees around a bauxite deposit in the Boé Sector, Guinea-Bissau

    Wenceslau, J., Dias, F., Marques, T. A. & Miller, D. L., 24 Jul 2019, (Accepted/In press) In : American Journal of Primatology.

    Research output: Contribution to journalComment/debate

Related by journal

  1. PLoS ONE (Journal)

    Joanna Louise Kershaw (Member of editorial board)
    18 Mar 2019

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  2. PLoS ONE (Journal)

    Catharine Penelope Cross (Member of editorial board)
    1 Sep 2018 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  3. PLoS ONE (Journal)

    Will Cresswell (Reviewer)
    23 May 2018

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  4. PLoS ONE (Journal)

    Barbara Dritschel (Member of editorial board)
    May 2018 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  5. PLoS ONE (Journal)

    Simon Young (Reviewer)
    7 Jun 201719 Jun 2017

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Related by journal

  1. Agreement between primary care and hospital diagnosis of schizophrenia and bipolar disorder: a cross-sectional, observational study using record linkage

    O’Neill, B., Kalia, S., Aliarzadeh, B., Moineddin, R., Fung, W. L. A., Sullivan, F., Maloul, A., Bernard, S. & Greiver, M., 7 Jan 2019, In : PLoS ONE. 14, 1, 15 p., e0210214.

    Research output: Contribution to journalArticle

  2. Animal behaviour in a human world: a crowdsourcing study on horses that open door and gate mechanisms

    Krueger, K., Esch, L. & Byrne, R., 26 Jun 2019, In : PLoS ONE. 14, 6, 20 p., e0218954.

    Research output: Contribution to journalArticle

  3. Correlates of social role and conflict severity in wild vervet monkey agonistic screams

    Mercier, S., Déaux, E. C., van de Waal, E., Bono, A. E. J. & Zuberbuhler, K., 1 May 2019, In : PLoS One. 14, 5, 20 p., e0214640.

    Research output: Contribution to journalArticle

  4. Impacts of ocean acidification on intertidal benthic foraminiferal growth and calcification

    Guamán-Guevara, F., Austin, H., Hicks, N., Streeter, R. & Austin, W. E. N., 21 Aug 2019, In : PLoS ONE. 14, 8, 21 p., e0220046.

    Research output: Contribution to journalArticle

  5. Molecular epidemiology and expression of capsular polysaccharides in Staphylococcus aureus clinical isolates in the United States

    Mohamed, N., Timofeyeva, Y., Jamrozy, D., Rojas, E., Hao, L., Silmon de Monerri, N. C., Hawkins, J., Singh, G., Cai, B., Liberator, P., Sebastian, S., Donald, R. G. K., Scully, I. L., Jones, C. H., Creech, C. B., Thomsen, I., Parkhill, J., Peacock, S. J., Jansen, K. U., Holden, M. T. G. & 1 othersAnderson, A. S., 14 Jan 2019, In : PLoS ONE. 14, 1, 33 p., e0208356.

    Research output: Contribution to journalArticle

ID: 26520107