Environmental correlates of stem radius change in the endangered Fitzroya cupressoides forests of southern Chile [PDF]
Agricultural and Forest Meteorology, 2015 a b s t r a c t Relationships between environmental factors and stem radius variation at short temporal scales can provide useful information regarding the sensitivity of tree species' productivity to climate change. This study used automatic point dendrometers to assess the relationship between environmental variables and stem radius contraction and ...
Urrutia Jalabert, R. +4 more
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Are the oxygen isotopic compositions of Fitzroya cupressoides and Nothofagus pumilio cellulose promising proxies for climate reconstructions in northern Patagonia? [PDF]
Journal of Geophysical Research: Biogeosciences, 2016 AbstractTree ring δ18O chronologies from two native species (Fitzroya cupressoides and Nothofagus pumilio) in northern Patagonia were developed to assess their potential for paleoclimate reconstructions. The five annually resolved cellulose δ18O chronologies (two for F. cupressoides and three for N.
Lavergne, Aliénor +6 more
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Genetic variation in Fitzroya cupressoides cultivated in the British Isles, assessed using RAPDs
Edinburgh Journal of Botany, 1998 Fitzroya cupressoides (Molina) Johnston (Cupressaceae), a threatened conifer native to southern South America, has been cultivated in a number of gardens and arboreta in the British Isles since its introduction in 1849. In order to assess the importance of these cultivated trees for ex situ conservation, foliar samples were collected from 48 trees from
T. R. Allnutt +3 more
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Revista Chilena de Historia Natural, 2000 Se desarrollaron dos cronologías de ancho de anillos de crecimiento a partir de muestras de alerce (Fitzroya cupressoides (Molina) Johnston), colectadas en dos sitios: Contao, Cordillera de los Andes (41º 33'S, 72º 38'W), y Mirador, en la Cordillera de ...
EDUARDO NEIRA, ANTONIO LARA
doaj +1 more source
The impact of Pleistocene glaciations and environmental gradients on the genetic structure of Embothrium coccineum. [PDF]
Ecol Evol, 2022 Using 2155 SNPs we detected two main genetic groups, which have diverged some 2.5 million years ago, in Embothrium coccineum. Both glacial cycles and selection to the strong environmental gradients have largely shaped the genetic diversity of this native Chilean tree.
Sepúlveda-Espinoza F +6 more
europepmc +2 more sources
AFEQ english, 2016 Tree ring δ18O chronologies from two native species (Fitzroya cupressoides and Nothofagus pumilio) in northern Patagonia were developed to assess their potential for paleoclimate reconstructions. The five annually resolved cellulose chronologies of oxygen isotopic compositions (d18Ocell; two for F. cupressoides and three for N.
celiaeschst
openaire +2 more sources
Past Summer Temperatures Inferred From Dendrochronological Records of
Journal of Geophysical Research: Biogeosciences, 2018 AbstractEstimating summer temperature fluctuations over long timescales in southern South America is essential for better understanding the past climate variations in the Southern Hemisphere. Here we developed robust 212 year long basal area increment (BAI) and δ13C chronologies from living temperature‐sensitive Fitzroya cupressoides on the eastern ...
Aliénor Lavergne +5 more
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Nectar Robbery by Native and Invasive Bumblebees Reduces Floral Rewards but Not Seed Production in <i>Desfontainia fulgens</i>. [PDF]
Ecol EvolWe evaluated nectar robbery by native and invasive bumblebees in the hummingbird‐pollinated shrub Desfontainia fulgens in southern Chile. Nectar robbery strongly reduced nectar standing crop and altered floral visitation patterns, but these proximate effects did not translate into reduced seed production under natural pollination conditions.
Valdivia CE, Orellana JI.
europepmc +2 more sources
A cost-effective DNA extraction protocol for long-read sequencing in non-model plants. [PDF]
Appl Plant SciAbstract Premise Third‐generation sequencing has revolutionized genomics, enabling in‐depth analysis of genome sequence, structure, and epigenetic features. Yet, extracting high‐quality DNA for long‐read sequencing remains a bottleneck—particularly in non‐model plants, such as mature trees growing in natural environments, which often contain abundant ...
Gaischuk S +6 more
europepmc +2 more sources
Complex History of Organellar Introgression in <i>Nothofagus</i> Trees: Chloroplast and Mitochondrial Capture Facilitated by Natural Selection. [PDF]
Ecol EvolField photograph of an ancient Nothofagus tree covered with epiphytic lichens in the Patagonian temperate rainforest. This genus serves as a key model for investigating organellar introgression and evolutionary genomics in South America. ABSTRACT Hybridization is widespread across diverse groups of organisms, and in some cases, organellar genomes of ...
Narváez G +8 more
europepmc +2 more sources