Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity

Fil: Pietrek, Alejandro G. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America.

Detalles Bibliográficos
Autores principales: Pietrek, Alejandro G., Cockle, Kristina L., Izquierdo, Andrea E., Berrios, Viviana S., Lyon, Bruce E.
Otros Autores: https://orcid.org/0000-0002-4783-0680
Formato: publishedVersion article
Lenguaje:Inglés
Publicado: 2024
Materias:
Phegornis mitchellii (bird)
Reproduction and conservation
Habitat
High Andean peatlands
Lagunas de Vilama
Acceso en línea:http://hdl.handle.net/11086/553053
https://doi.org/10.1371/journal.pone.0305462
Aporte de:
Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba
id I10-R141-11086-553053
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-141
collection Repositorio Digital Universitario (UNC)
language Inglés
topic Phegornis mitchellii (bird)
Reproduction and conservation
Habitat
High Andean peatlands
Lagunas de Vilama
spellingShingle Phegornis mitchellii (bird)
Reproduction and conservation
Habitat
High Andean peatlands
Lagunas de Vilama
Pietrek, Alejandro G.
Cockle, Kristina L.
Izquierdo, Andrea E.
Berrios, Viviana S.
Lyon, Bruce E.
Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
topic_facet Phegornis mitchellii (bird)
Reproduction and conservation
Habitat
High Andean peatlands
Lagunas de Vilama
description Fil: Pietrek, Alejandro G. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America.
author2 https://orcid.org/0000-0002-4783-0680
author_facet https://orcid.org/0000-0002-4783-0680
Pietrek, Alejandro G.
Cockle, Kristina L.
Izquierdo, Andrea E.
Berrios, Viviana S.
Lyon, Bruce E.
format publishedVersion
article
author Pietrek, Alejandro G.
Cockle, Kristina L.
Izquierdo, Andrea E.
Berrios, Viviana S.
Lyon, Bruce E.
author_sort Pietrek, Alejandro G.
title Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
title_short Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
title_full Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
title_fullStr Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
title_full_unstemmed Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
title_sort habitat occupancy of the threatened diademed plover (phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity
publishDate 2024
url http://hdl.handle.net/11086/553053
https://doi.org/10.1371/journal.pone.0305462
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AT izquierdoandreae habitatoccupancyofthethreateneddiademedploverphegornismitchelliiisnotaffectedbyllamagrazingorpeatlandsizebutdeclineswithpeatlandhumidity
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spelling I10-R141-11086-5530532024-08-02T06:21:07Z Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity Pietrek, Alejandro G. Cockle, Kristina L. Izquierdo, Andrea E. Berrios, Viviana S. Lyon, Bruce E. https://orcid.org/0000-0002-4783-0680 https://orcid.org/0000-0003-0520-3248 Phegornis mitchellii (bird) Reproduction and conservation Habitat High Andean peatlands Lagunas de Vilama info:eu-repo/semantics/publishedVersion Fil: Pietrek, Alejandro G. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America. Fil: Pietrek, Alejandro G. Universidad Nacional de Salta; Argentina. Fil: Pietrek, Alejandro G. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Bio y Geociencias del NOA; Argentina. Fil: Cockle, Kristina L. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Subtropical, Puerto Iguazú, Misiones; Argentina. Fil: Izquierdo, Andrea E. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Izquierdo, Andrea E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Berrios, Viviana S. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Fil: Berrios, Viviana S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Lyon, Bruce E. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America. Fil: Lyon, Bruce E. Universidad Nacional de Salta; Argentina. Fil: Lyon, Bruce E. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Bio y Geociencias del NOA; Argentina. Many habitat-specialist organisms occur in distinct, patchy habitat, yet do not occupy all patches, and an important question is why apparently suitable habitat remains unoccupied. We examined factors influencing patch occupancy in near-threatened, little-known Diademed Plovers (Phegornis mitchellii), arguably the bird most specialized to life in High Andean peatlands. Andean peatlands are well-suited to occupancy modelling because they are discrete patches of humid habitat within a matrix of high-altitude steppe. We hypothesized that Diademed Plovers occupy preferably larger and more humid peatlands, and avoid peatlands used for grazing by llamas and vicuñas, which may trample vegetation and nests. From December 2021 to February 2022 (breeding season), we conducted plover occupancy surveys (2–4) on 40 peatlands at Lagunas de Vilama, a landscape of arid steppe and wetlands above 4,500 m in NW Argentina. We measured peatland size, grazing pressure, topographic and remotely-sensed variables that correlate with humidity, and incorporated these as covariates in occupancy models. Occupancy models showed that more than 50% of the studied peatlands were used by Diademed Plovers and most showed signs of reproduction, highlighting the importance of the Vilama Wetlands for Diademed Plover conservation. Within peatlands, Diademed Plovers were most often associated with headwaters. The top ranked occupancy model included constant detection, random spatial effects, and a single occupancy covariate: mean NDWI (Normalized Difference Water Index, an index correlated with water content and humidity) over the previous three years. Contrary to our prediction, Diademed Plovers preferred less water-saturated peatlands (lower NDWI), possibly to avoid nest flooding. This may be especially important in wet years, like the year when we conducted our surveys. Neither peatland size nor grazing by llamas and vicuñas affected peatland use by Diademed Plovers, suggesting that llama grazing at current levels may be compatible with plover conservation. For organisms that specialize on humid habitats, such as peatlands, factors affecting occupancy may vary temporally with variation in climate, and we recommend follow-up surveys across multi-year timescales to untangle the impact of climate on animals’ use of humid habitats. info:eu-repo/semantics/publishedVersion Fil: Pietrek, Alejandro G. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America. Fil: Pietrek, Alejandro G. Universidad Nacional de Salta; Argentina. Fil: Pietrek, Alejandro G. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Bio y Geociencias del NOA; Argentina. Fil: Cockle, Kristina L. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Subtropical, Puerto Iguazú, Misiones; Argentina. Fil: Izquierdo, Andrea E. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Izquierdo, Andrea E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Berrios, Viviana S. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Fil: Berrios, Viviana S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Lyon, Bruce E. University of California Santa Cruz. Ecology and Evolutionary Biology Department. Santa Cruz, CA; United States of America. Fil: Lyon, Bruce E. Universidad Nacional de Salta; Argentina. Fil: Lyon, Bruce E. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Bio y Geociencias del NOA; Argentina. 2024-08-01T19:23:59Z 2024-08-01T19:23:59Z 2024-07-11 article Pietrek AG, Cockle KL, Izquierdo AE, Berrios VS, Lyon BE (2024) Habitat occupancy of the threatened Diademed Plover (Phegornis mitchellii) is not affected by llama grazing or peatland size, but declines with peatland humidity. PLoS ONE 19(7): e0305462. https://doi.org/ 10.1371/journal.pone.0305462 1544-9173 http://hdl.handle.net/11086/553053 1545-7885 https://doi.org/10.1371/journal.pone.0305462 eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

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