Diversidad Vegetal de Lagunas Temporales en la Estepa Patagónica Chilena Noroccidental

Martín, Cristina San; Pérez, Yéssica; Álvarez, Miguel; Salazar, Christian; Ramírez, Carlos

doi:10.4067/s0718-686x2013000200012

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Como ha sido mencionado con frecuencia (Clarke 1993, San Martín et al 1999, Sandoval et al 2016) los análisis estadísticos multivariados de ordenación, tanto de censos como de especies, permiten inferir requerimientos de sitio utilizando las especies de los extremos del arreglo, que por ser definidas en sus preferencias y reconocidas empíricamente en sus requerimientos de sitio, permiten definir a que factor ecológico corresponderían los primeros ejes del ordenamiento, lo que facilita inferir los requerimientos de las especies desconocidas en relación con las especies conocidas. En vegetación de tipo zonal los primeros ejes corresponden principalmente a requerimientos hídricos, térmicos y lumínicos y luego vendrían los requerimientos edáficos, que serían importantes solo en vegetación de tipo azonal (San Martín et al 2014a).…”

Section: Métodosunclassified

Humedales turbosos de la Región de Aisén (Patagonia chilena): Clasificación y ordenación de la flora y la vegetación

et al. 2021

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The peat bogs of Capitán Prat Province in Aisén Region in Chilean Patagonia were studied, raising 204 vegetation samples with plant sociological methodology, with which an initial table with 106 species of flora in its first column was built. With traditional methodology, this table was ordered using differential species and with multivariate classification and ordination statistics, all the possible ecological information contained in it was extracted. Four plant communities of the peat bog formation were determined: Gaultherio-Sphagnetum magellanici (Sphagnum peat bog), Schoeno andinus-Lepidothamnetum fonkii (ciprés enano peat bog), Cortaderio egmontianae-Schoenetum andinus (gramineous peat bog) and Drosero uniflorae-Donatietum fascicularis (pulvinate peat bog). The third Cortaderio egmontianae-Schoenetum andinus is proposed as a new plant association. The floristic similarity among them was high, even though they can be easily physiognomically differentiated. Multivariate ordination suggests that waterlogging and temperature, conditioned by relief and altitude, are important factors in the differentiation of peat bog communities. It is concluded that of these four associations, two -the Sphagnum peat bog and Lepidothamnus fonkii peat bog-correspond to the region of the evergreen Magellanic Forest, while the other two are northern outposts of the Magellanic Tundra Region, typical of the Southern Hemisphere, especially in Chile and New Zealand.

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Section: Métodosunclassified

Humedales turbosos de la Región de Aisén (Patagonia chilena): Clasificación y ordenación de la flora y la vegetación

et al. 2021

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“…These diagnostic species are only missing in the plots from the island of Chiloé and from Argentina. Lasthenia kunthii is widespread southwards (Moreira-Muñoz & Muñoz-Schick 2007) and occurs also in ephemeral wetlands in Patagonia (San Martín et al 2013). FIGURA 4.…”

Section: Vegetationmentioning

confidence: 99%

Vascular plant assemblages of ephemeral wetland vegetation along the Mediterranean-temperate gradient in Chile

Álvarez

Deil

2015

Gayana Bot.

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Hierarchical clustering was applied in order to get co-occurrence assemblages. These sets were compared with diagnostic groups defined a priori, life forms and their status in South America (introduced vs native species). In order to detect geographic and climatic distribution patterns of the assemblages, we extracted climatic summary variables from the WorldClim database and performed a principal component analysis (PCA). We detected seven species assemblages with a significant correspondence to diagnostic groups defined a priori (P < 0.01), though their association is relatively low (Cramér's V = 0.49). Native species dominate over adventive ones in each assemblage suggesting low risk of outcompetition by introduced species adapted to these habitats. The annual life form is over represented in most of the cooccurrence groups. Despite the huge temperature and precipitation gradient in the studied transect, plant assemblages are occurring almost along the whole range, supporting the hypothesis of azonality (low dependence on macro-climate). Assemblages defined in this work can be potentially used for further supervised classification strategies in order to define plant community types within vernal pool vegetation.

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“…Since its publication, Transecta has had a major impact on local biodiversity research. It provided a much needed framework for understanding the main aspects of the vegetation landscape of the area (León et al, 1998), as a diverse mosaic of steppe (Romo et al, 2012), forest (Damascos, 1997; Promis et al, 2008) and wetland (Blanco & de la Balze, 2004; Kleinebecker & Vogel, 2008; San Martín et al, 2013). The knowledge gathered in Transecta was also used for considerations on the land use potential for forestry and pasture (Seibert, 1987), fodder production (Olivares Espinoza & Schmidt, 2008) or livestock farming (Oliva et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Vegetation of Southern Patagonia in the 1970s – Digitization of a gray‐literature data set as a monitoring baseline in a changing world

Sabatini,

Hähn,

Speziale

et al. 2023

J Vegetation Science

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Monitoring vegetation trends against objective baselines is fundamental to quantify the impacts of global change on plant biodiversity. Vegetation plot time series are a gold standard in vegetation monitoring, but such data are missing for many regions. Southern Patagonia is an example of a region strongly impacted by climate change but lacking time series data. Monitoring in this region could benefit from a comparison with vegetation survey data gathered between 1975 and 1979, as part of the multidisciplinary research program “Transecta botánica de la Patagonia austral” (hereafter Transecta). Published in 1985, it contains data on 668 vegetation plots, which were so far inaccessible to most researchers: Transecta has never been reprinted, nor fully digitized, and can only be found in specialized libraries. Here, we created a reproducible workflow, documenting how vegetation plot data from historical sources can be extracted and harmonized. The resulting open‐access database we created fills a major regional gap and provides a needed baseline to assess the impacts of global change on southern Patagonia vegetation. By making these data available, we hope to inspire a new generation of vegetation scientists to resurvey the area and continue the legacy of the pioneer researchers who compiled Transecta.

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Diversidad Vegetal de Lagunas Temporales en la Estepa Patagónica Chilena Noroccidental

Cited by 5 publications

References 8 publications

Humedales turbosos de la Región de Aisén (Patagonia chilena): Clasificación y ordenación de la flora y la vegetación

Humedales turbosos de la Región de Aisén (Patagonia chilena): Clasificación y ordenación de la flora y la vegetación

Vascular plant assemblages of ephemeral wetland vegetation along the Mediterranean-temperate gradient in Chile

Vegetation of Southern Patagonia in the 1970s – Digitization of a gray‐literature data set as a monitoring baseline in a changing world

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