Análisis de la distribución geográfica y dinámica estacional de Poospiza ornata (Landbeck, 1865; Passeriformes: Thraupidae)

Lorena Sforza; Pier Cacciali

doi:10.56178/eh.v40i2.1524

Artículos Publicado 30 noviembre 2025 https://doi.org/10.56178/eh.v40i2.1524

Análisis de la distribución geográfica y dinámica estacional de Poospiza ornata (Landbeck, 1865; Passeriformes: Thraupidae)

envolvente convexa GBIF migración Monterita Canela Sudamérica

Lorena Sforza Guyra Paraguay, Parque Ecológico Capital Verde – Viñas Cué, Av. Cnel. Carlos Bóveda c/ San Andrés, Asunción, Paraguay

Pier Cacciali Instituto de Investigación Biológica del Paraguay, Del Escudo 1607, 1425 Asunción, Paraguay

Resumen

Este trabajo analiza los cambios espaciales y estacionales en la distribución de la Monterita Canela (Poospiza ornata), un paseriforme de ambientes áridos del sur de Sudamérica, parcialmente migratorio. A partir de datos de ocurrencia obtenidos de GBIF (Global Biodiversity Information Facility) entre 1999 y 2024, se estimaron áreas de distribución mediante envolventes convexas acumulativas, se analizaron desplazamientos de centroides y se evaluaron patrones estacionales. Los resultados mostraron un aumento progresivo del área ocupada (~1.1 millones de km² en 25 años) y un desplazamiento del centroide hacia el este, con una tendencia marginal hacia el norte. Se identificaron diferencias espaciales entre estaciones, con distribuciones más amplias en otoño y primavera, y concentraciones invernales en el núcleo tradicional de la especie. Si bien estas evidencias podrían sugerir una expansión reciente, especialmente hacia el noreste (Uruguay y Paraguay), no es posible afirmar con certeza que se trate de una expansión real, ya que los resultados podrían estar influenciados por el aumento en la cobertura de muestreo, especialmente a partir del crecimiento de plataformas de ciencia ciudadana. Este estudio destaca la importancia de continuar con el monitoreo espacial y temporal de la especie para determinar si estos patrones reflejan desplazamientos esporádicos o un proceso sostenido de expansión de rango impulsado por cambios ecológicos y/o antrópicos.

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Referencias

Andrade JM, Estévez-Pérez MG (2014) Statistical comparison of the slopes of two regression lines: A tutorial. Analytica Chimica Acta 838:1-12. https://doi.org/10.1016/j.aca.2014.04.057
Botero-Delgadillo E, Quirici V, Poblete Y, Poulin E, Kempenaers B, Vásquez RA (2020) Exploratory behavior, but not aggressiveness, is correlated with breeding dispersal propensity in the highly philopatric thorn-tailed rayadito. Journal of Avian Biology 51(2): e02262. https://doi.org/10.1111/jav.02262
Brewer AD (1977) First occurrence of the Golden-winged Warbler in Trinidad. American Birds 31:234
Burgman MA, Fox JC (2003) Bias in species range estimates from minimum convex polygons: implications for conservation and options for improved planning. Animal Conservation 6(1):19-28. https://doi.org/10.1017/S1367943003003044
Cornelius C, Awade M, Cândia-Gallardo C, Sieving KE, Metzger JP (2017) Habitat fragmentation drives inter-population variation in dispersal behavior in a Neotropical rainforest bird. Perspectives in Ecology and Conservation 15(1):3-9. https://doi.org/10.1016/j.pecon.2017.02.002
Cueto VR, Milesi FA, Sagario MC, Lopez de Casenave J, Marone L (2011) Distribución geográfica y patrones de movimiento de la Monterita Canela (Poospiza ornata) y el Yal Carbonero (Phrygilus carbonarius) en Argentina. Ornitología Neotropical 22(4):483-494
Dingemanse NJ, Both1 C, van Noordwijk AJ, Rutten AL, Drent PJ (2003) Natal dispersal and personalities in great tits (Parus major). Proceedings of the Royal Society of London B 270(1516):741-747. https://doi.org/10.1098/rspb.2002.2300
eBird (2025) eBird: An online database of bird distribution and abundance (web application). eBird, Cornell Lab of Ornithology, Ithaca [URL: http://www.ebird.org]
Fjeldså J, Lambin E, Mertens B (1999) Correlation between endemism and local ecoclimatic stability documented by comparing Andean bird distributions and remotely sensed land surface data. Ecography 22(1):63-78. https://doi.org/10.1111/j.1600-0587.1999.tb00455.x
Garnier S, Ross N, Rudis R, Camargo AP, Sciaini M, Scherer C (2024) viridis(Lite) - Colorblind-Friendly Color Maps for R. doi:10.5281/zenodo.4679423, viridis package version 0.6.5. [URL: https://sjmgarnier.github.io/viridis/]
Gaston KJ (2003) The Structure and Dynamics of Geographic Ranges. Oxford Academic Press, Oxford, Inglaterra
GBIF (2025) Global Biodiversity Information Facility. GBIF Occurrence Download https://doi.org/10.15468/dl.nuk5tm. (14/04/2025)
Griswold CK, Taylor CM, Norris DR (2011) The equilibrium population size of a partially migratory population and its response to environmental change. Oikos 120(12):1847-1859. https://doi.org/10.1111/j.1600-0706.2011.19435.x
Hayes FE, Lecourt P, del Castillo HF (2018) Rapid southward and upward range expansion of a tropical songbird, the Thrush-like Wren (Campylorhynchus turdinus), in South America: a consequence of habitat or climate change? Revista Brasileira de Ornitologia 26(1):57-64. https://doi.org/10.1007/BF03544416
iNaturalist (2025) iNaturalist Research-grade Observations. iNaturalist.org. [URL: https://doi.org/10.15468/ab3s5x] (31/03/2025)
Isaac NJ, van Strien AJ, August TA, de Zeeuw MP, Roy DB (2014) Statistics for citizen science: extracting signals of change from noisy ecological data. Methods in Ecology and Evolution 5(10):1052-1060. https://doi.org/10.1111/2041-210X.12254
Korsten P, van Overveld T, Adriaensen F, Matthysen E (2013) Genetic integration of local dispersal and exploratory behaviour in a wild bird. Nature Communications 4(1):2362. https://doi.org/10.1038/ncomms3362
Marone L (1992) Seasonal and year-to-year fluctuations of bird populations and guilds in the Monte desert, Argentina. Journal of Field Ornithology 63(3):294-308. http://www.jstor.org/stable/4513710
Mazar Barnett J, Pearman M (2001) Lista comentada de las aves argentinas/Annotated checklist of the birds of Argentina. Lynx Edicions, Barcelona, Spain, 168 pp
Meza R, Dávalos D, Sforza L, Cacciali P, del Castillo H (2025) First record of Poospiza ornata (Landbeck, 1865) (Passeriformes, Thraupidae) from Paraguay. Check List 21(2):264-267. https://doi.org/10.15560/21.2.264
Mezquida ET, Marone L (2003) Comparison of the reproductive biology of two Poospiza warbling-finches of Argentina in wet and dry years. Ardea 91(2):251-262
Milesi FA, Lopez de Casenave J, Cueto VR (2006) Seed preferences in sparrow species of the Monte desert: implications for seed–granivore interactions. The Auk 123(2):358-367. https://doi.org/10.1093/auk/123.2.358
Moreno X, De León-Girón G, Moreno-Higadera HR, Hargrove L, Zamora-Hernández ED, Olguín D, De la Cueva H (2024) Northern Harrier Breeding in Bahía de San Quintín, Baja California. Western Birds 55(4):308-311. http://doi.org/10.21199/WB55.4.6
Narosky T, Di Giacomo A (1993) Las Aves de la provincia de Buenos Aires, distribución y estatus. Asociación Ornitológica del Plata. Literature of Latin America, Buenos Aires, Argentina
Newton I (2004) Population limitation in migrants. Ibis 146(2):197-226. https://doi.org/10.1111/j.1474-919X.2004.00293.x
QGIS Development Team (2025). QGIS Geographic Information System. Open Source Geospatial Foundation Project. [URL: http://qgis.osgeo.org]
R Core Team (2021). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. [URL: https://www.R-project.org/]
Roesler I, Povedano H, Di Giacomo AS, Spitznagel O (2006) La Monterita Canela (Poospiza ornata) en la provincia de Entre Ríos, Argentina. Nuestras Aves 51:34-35. https://doi.org/10.56178/na.vi51.518
Sullivan BL, Aycrigg JL, Barry JH, Bonney RE, Bruns N, Cooper CB, Damoulas T, Dhondt AA, Dietterich T, Farnsworth A, Fink D, Fitzpatrick JW, Fredericks T, Gerbracht J, Gomes C, Hochachka WM, Iliff MJ, Lagoze C, La Sorte FA, Merrifield M, Morris W, Phillips TB, Reynolds M, Rodewald AD, Rosenberg KV, Trautmann NM, Wiggins A, Winkler DW, Wong WK, Wood CL, Yu J, Kelling S (2014) The eBird enterprise: An integrated approach to development and application of citizen science. Biological Conservation 169:31-40. https://doi.org/10.1016/j.biocon.2013.11.003
Tingley MW, Monahan WB, Beissinger SR, Moritz C (2009) Birds track their Grinnellian niche through a century of climate change. Proceedings of the National Academy of Sciences 106(Suppl_2):19637-19643. https://doi.org/10.1073/pnas.0901562106
Vázquez MS, Ripa R, Scorolli AL, Zalba S (2025) Seasonal dynamics of range expansion in South American thrushes. Movement Ecology 13(1):7. https://doi.org/10.1186/s40462-025-00533-w
Vázquez MS, Scorolli AL, Zalba SM (2024) Range expansion of native thrushes in South America. Ornithology Research 32(4):255-265. https://doi.org/10.1007/s43388-024-00195-z
Wickham H (2016) ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag New York. ISBN 978-3-319-24277-4. [URL: https://ggplot2.tidyverse.org]
Wickham H, François R, Henry L, Müller K, Vaughan D (2025a) dplyr: A Grammar of Data Manipulation. R package version 1.1.4. [URL: https://dplyr.tidyverse.org]
Wickham H, Hester J, Bryan J (2025b) readr: Read Rectangular Text Data. R package version 2.1.6. [URL: https://readr.tidyverse.org]
Zarco A, Cueto VR (2017) Winter flock structure in the central Monte desert, Argentina. Ardea 105(2):89-97. http://doi.org/10.5253/arde.v105i2.a6
Zarco A, Cueto VR, Sagario MC, Marone L (2019) Effects of livestock grazing on flocks of seed-eating birds in the central Monte desert, Argentina. Canadian Journal of Zoology 97(7):606-611. https://doi.org/10.1139/cjz-2018-0223

Cómo citar

Lorena Sforza, Pier Cacciali (2025). Análisis de la distribución geográfica y dinámica estacional de Poospiza ornata (Landbeck, 1865; Passeriformes: Thraupidae). El Hornero, Vol. 40 Núm. 2 (2025), 69-77. https://doi.org/10.56178/eh.v40i2.1524

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Licencia: CC BY-NC 4.0

[1] Andrade JM, Estévez-Pérez MG (2014) Statistical comparison of the slopes of two regression lines: A tutorial. Analytica Chimica Acta 838:1-12. https://doi.org/10.1016/j.aca.2014.04.057

[2] Botero-Delgadillo E, Quirici V, Poblete Y, Poulin E, Kempenaers B, Vásquez RA (2020) Exploratory behavior, but not aggressiveness, is correlated with breeding dispersal propensity in the highly philopatric thorn-tailed rayadito. Journal of Avian Biology 51(2): e02262. https://doi.org/10.1111/jav.02262

[3] Brewer AD (1977) First occurrence of the Golden-winged Warbler in Trinidad. American Birds 31:234

[4] Burgman MA, Fox JC (2003) Bias in species range estimates from minimum convex polygons: implications for conservation and options for improved planning. Animal Conservation 6(1):19-28. https://doi.org/10.1017/S1367943003003044

[5] Cornelius C, Awade M, Cândia-Gallardo C, Sieving KE, Metzger JP (2017) Habitat fragmentation drives inter-population variation in dispersal behavior in a Neotropical rainforest bird. Perspectives in Ecology and Conservation 15(1):3-9. https://doi.org/10.1016/j.pecon.2017.02.002

[6] Cueto VR, Milesi FA, Sagario MC, Lopez de Casenave J, Marone L (2011) Distribución geográfica y patrones de movimiento de la Monterita Canela (Poospiza ornata) y el Yal Carbonero (Phrygilus carbonarius) en Argentina. Ornitología Neotropical 22(4):483-494

[7] Dingemanse NJ, Both1 C, van Noordwijk AJ, Rutten AL, Drent PJ (2003) Natal dispersal and personalities in great tits (Parus major). Proceedings of the Royal Society of London B 270(1516):741-747. https://doi.org/10.1098/rspb.2002.2300

[8] eBird (2025) eBird: An online database of bird distribution and abundance (web application). eBird, Cornell Lab of Ornithology, Ithaca [URL: http://www.ebird.org]

[9] Fjeldså J, Lambin E, Mertens B (1999) Correlation between endemism and local ecoclimatic stability documented by comparing Andean bird distributions and remotely sensed land surface data. Ecography 22(1):63-78. https://doi.org/10.1111/j.1600-0587.1999.tb00455.x

[10] Garnier S, Ross N, Rudis R, Camargo AP, Sciaini M, Scherer C (2024) viridis(Lite) - Colorblind-Friendly Color Maps for R. doi:10.5281/zenodo.4679423, viridis package version 0.6.5. [URL: https://sjmgarnier.github.io/viridis/]

[11] Gaston KJ (2003) The Structure and Dynamics of Geographic Ranges. Oxford Academic Press, Oxford, Inglaterra

[12] GBIF (2025) Global Biodiversity Information Facility. GBIF Occurrence Download https://doi.org/10.15468/dl.nuk5tm. (14/04/2025)

[13] Griswold CK, Taylor CM, Norris DR (2011) The equilibrium population size of a partially migratory population and its response to environmental change. Oikos 120(12):1847-1859. https://doi.org/10.1111/j.1600-0706.2011.19435.x

[14] Hayes FE, Lecourt P, del Castillo HF (2018) Rapid southward and upward range expansion of a tropical songbird, the Thrush-like Wren (Campylorhynchus turdinus), in South America: a consequence of habitat or climate change? Revista Brasileira de Ornitologia 26(1):57-64. https://doi.org/10.1007/BF03544416

[15] iNaturalist (2025) iNaturalist Research-grade Observations. iNaturalist.org. [URL: https://doi.org/10.15468/ab3s5x] (31/03/2025)

[16] Isaac NJ, van Strien AJ, August TA, de Zeeuw MP, Roy DB (2014) Statistics for citizen science: extracting signals of change from noisy ecological data. Methods in Ecology and Evolution 5(10):1052-1060. https://doi.org/10.1111/2041-210X.12254

[17] Korsten P, van Overveld T, Adriaensen F, Matthysen E (2013) Genetic integration of local dispersal and exploratory behaviour in a wild bird. Nature Communications 4(1):2362. https://doi.org/10.1038/ncomms3362

[18] Marone L (1992) Seasonal and year-to-year fluctuations of bird populations and guilds in the Monte desert, Argentina. Journal of Field Ornithology 63(3):294-308. http://www.jstor.org/stable/4513710

[19] Mazar Barnett J, Pearman M (2001) Lista comentada de las aves argentinas/Annotated checklist of the birds of Argentina. Lynx Edicions, Barcelona, Spain, 168 pp

[20] Meza R, Dávalos D, Sforza L, Cacciali P, del Castillo H (2025) First record of Poospiza ornata (Landbeck, 1865) (Passeriformes, Thraupidae) from Paraguay. Check List 21(2):264-267. https://doi.org/10.15560/21.2.264

[21] Mezquida ET, Marone L (2003) Comparison of the reproductive biology of two Poospiza warbling-finches of Argentina in wet and dry years. Ardea 91(2):251-262

[22] Milesi FA, Lopez de Casenave J, Cueto VR (2006) Seed preferences in sparrow species of the Monte desert: implications for seed–granivore interactions. The Auk 123(2):358-367. https://doi.org/10.1093/auk/123.2.358

[23] Moreno X, De León-Girón G, Moreno-Higadera HR, Hargrove L, Zamora-Hernández ED, Olguín D, De la Cueva H (2024) Northern Harrier Breeding in Bahía de San Quintín, Baja California. Western Birds 55(4):308-311. http://doi.org/10.21199/WB55.4.6

[24] Narosky T, Di Giacomo A (1993) Las Aves de la provincia de Buenos Aires, distribución y estatus. Asociación Ornitológica del Plata. Literature of Latin America, Buenos Aires, Argentina

[25] Newton I (2004) Population limitation in migrants. Ibis 146(2):197-226. https://doi.org/10.1111/j.1474-919X.2004.00293.x

[26] QGIS Development Team (2025). QGIS Geographic Information System. Open Source Geospatial Foundation Project. [URL: http://qgis.osgeo.org]

[27] R Core Team (2021). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. [URL: https://www.R-project.org/]

[28] Roesler I, Povedano H, Di Giacomo AS, Spitznagel O (2006) La Monterita Canela (Poospiza ornata) en la provincia de Entre Ríos, Argentina. Nuestras Aves 51:34-35. https://doi.org/10.56178/na.vi51.518

[29] Sullivan BL, Aycrigg JL, Barry JH, Bonney RE, Bruns N, Cooper CB, Damoulas T, Dhondt AA, Dietterich T, Farnsworth A, Fink D, Fitzpatrick JW, Fredericks T, Gerbracht J, Gomes C, Hochachka WM, Iliff MJ, Lagoze C, La Sorte FA, Merrifield M, Morris W, Phillips TB, Reynolds M, Rodewald AD, Rosenberg KV, Trautmann NM, Wiggins A, Winkler DW, Wong WK, Wood CL, Yu J, Kelling S (2014) The eBird enterprise: An integrated approach to development and application of citizen science. Biological Conservation 169:31-40. https://doi.org/10.1016/j.biocon.2013.11.003

[30] Tingley MW, Monahan WB, Beissinger SR, Moritz C (2009) Birds track their Grinnellian niche through a century of climate change. Proceedings of the National Academy of Sciences 106(Suppl_2):19637-19643. https://doi.org/10.1073/pnas.0901562106

[31] Vázquez MS, Ripa R, Scorolli AL, Zalba S (2025) Seasonal dynamics of range expansion in South American thrushes. Movement Ecology 13(1):7. https://doi.org/10.1186/s40462-025-00533-w

[32] Vázquez MS, Scorolli AL, Zalba SM (2024) Range expansion of native thrushes in South America. Ornithology Research 32(4):255-265. https://doi.org/10.1007/s43388-024-00195-z

[33] Wickham H (2016) ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag New York. ISBN 978-3-319-24277-4. [URL: https://ggplot2.tidyverse.org]

[34] Wickham H, François R, Henry L, Müller K, Vaughan D (2025a) dplyr: A Grammar of Data Manipulation. R package version 1.1.4. [URL: https://dplyr.tidyverse.org]

[35] Wickham H, Hester J, Bryan J (2025b) readr: Read Rectangular Text Data. R package version 2.1.6. [URL: https://readr.tidyverse.org]

[36] Zarco A, Cueto VR (2017) Winter flock structure in the central Monte desert, Argentina. Ardea 105(2):89-97. http://doi.org/10.5253/arde.v105i2.a6

[37] Zarco A, Cueto VR, Sagario MC, Marone L (2019) Effects of livestock grazing on flocks of seed-eating birds in the central Monte desert, Argentina. Canadian Journal of Zoology 97(7):606-611. https://doi.org/10.1139/cjz-2018-0223