Variation in Alpine Plant Diversity and Soil Temperatures in Two Mountain Landscapes of South Patagonia

Autor: Héctor Alejandro Bahamonde, Magalí Pérez Flores, Juan Manuel Cellini, Lucas H. Monelos, Rosina Soler, Pablo Luis Peri, María Vanessa Lencinas, Guillermo Martínez Pastur
Jazyk: angličtina
Rok vydání: 2021
Předmět:
0106 biological sciences
Multivariate statistics
Topography
010504 meteorology & atmospheric sciences
Alpine plant
Topografía
Forests
Temperatura del Suelo
01 natural sciences
Vegetación Alpina
Sub Antartic Forest
Soil Temperature
foothill grasslands
Tierra del Fuego
sub-Antarctic forests
Biology (General)
Ecology
Ecological Modeling
Baseline (sea)
Temperature
Alpine Vegetation
Temperatura
Agricultural and Biological Sciences (miscellaneous)
Bosques
Geography
Praderas Alpinas
Long Term Experiments
Tierras Altas
Highlands
Experimentos de Largo Plazo
Global Observational Research Initiative in Alpine Environments (GLORIA)
QH301-705.5
Climate Change
Santa Cruz (Argentina)
Región Patagónica
010603 evolutionary biology
Tierra
Latitude
Alpine Grasslands
Ciencias Agrarias
Growth Period
Southern Hemisphere
Período de Crecimiento
0105 earth and related environmental sciences
Nature and Landscape Conservation
Santa Cruz
Elevation
Cambio Climático
Bosques Sub Antárticos
GLORIA approach
Iniciativa Mundial de Investigación Observacional en Entornos Alpinos
Physical geography
Species richness
mountain vegetation
Tierra del Fuego (Argentina)
Zdroj: Diversity, Vol 13, Iss 310, p 310 (2021)
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Diversity 13 (7) : 310. (July 2021)
INTA Digital (INTA)
Instituto Nacional de Tecnología Agropecuaria
instacron:INTA
Diversity
Volume 13
Issue 7
ISSN: 1424-2818
Popis: Alpine environments and their temporal changes are rarely studied at high latitudes in the southern hemisphere. We analyzed alpine plants, soil temperatures, and growing-season length in mountains of two landscapes of South Patagonia (46° to 56° SL): three summits (814–1085 m a.s.l) surrounded by foothill grasslands in Santa Cruz province (SC), and four summits (634–864 m a.s.l.) in sub-Antarctic forests of Tierra del Fuego province (TF). Sampling followed the protocolized methodology of the Global Observational Research Initiative in Alpine Environments (GLORIA). Factors were topography (elevation and cardinal aspect) and time (baseline vs. re-sampling for plants, five annual periods for temperatures), assessed by univariate and multivariate tests. Plant composition reflected the lowland surrounding landscapes, with only 9 mountain species on 52 totals in SC and 3 on 30 in TF. Richness was higher in re-sampling than baseline, being assemblages more influenced by aspect than elevation. Mean annual soil temperature and growing-season length, which varied with topography, were related to the Multivariate El Niño Southern Oscillation Index (MEI) but did not show clear warming trends over time. We highlight the importance of long-term studies in mountainous regions of extreme southern latitudes, where factors other than warming (e.g., extreme climate events) explain variations.
Laboratorio de Investigaciones en Madera
Databáze: OpenAIRE
Externí odkaz: