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Climate change plant distribution

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https://www.readbyqxmd.com/read/28211151/phenotypic-distribution-models-corroborate-species-distribution-models-a-shift-in-the-role-and-prevalence-of-a-dominant-prairie-grass-in-response-to-climate-change
#1
Adam B Smith, Jacob Alsdurf, Mary Knapp, Sara G Baer, Loretta C Johnson
Phenotypic variation within species can vary widely across environmental gradients but forecasts of species' responses to environmental change often assume species respond homogenously across their ranges. We compared predictions from species and phenotype distribution models under future climate scenarios for Andropogon gerardii, a widely distributed, dominant grass found throughout the central United States. Phenotype data on aboveground biomass, height, leaf width, and chlorophyll content were obtained from 33 populations spanning a ~1000-km gradient that encompassed the majority of the species' environmental range...
February 17, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28211017/examining-adaptations-to-water-stress-among-farming-households-in-sri-lanka-s-dry-zone
#2
Nicholas E Williams, Amanda Carrico
Climate change is increasing water scarcity in Sri Lanka. Whether these changes will undermine national-level food security depends upon the ability of the small-scale farmers that dominate rice production and the institutions that support them to overcome the challenges presented by changing water availability. Analyzing household survey data, this research identifies household, institutional, and agroecological factors that influence how water-stressed farmers are working to adapt to changing conditions and how the strategies they employ impact rice yields...
February 16, 2017: Ambio
https://www.readbyqxmd.com/read/28161152/biogeographical-patterns-of-myrcia-s-l-myrtaceae-and-their-correlation-with-geological-and-climatic-history-in-the-neotropics
#3
Matheus Fortes Santos, Eve Lucas, Paulo Takeo Sano, Sven Buerki, Vanessa Graziele Staggemeier, Félix Forest
Many recent studies discuss the influence of climatic and geological events in the evolution of Neotropical biota by correlating these events with dated phylogenetic hypotheses. Myrtaceae is one of the most diverse Neotropical groups and it therefore a good proxy of plant diversity in the region. However, biogeographic studies on Neotropical Myrtaceae are still very limited. Myrcia s.l. is an informal group comprising three accepted genera (Calyptranthes, Marlierea and Myrcia) making up the second largest Neotropical group of Myrtaceae, totalling about 700 species distributed in nine subgroups...
February 1, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28152098/genome-wide-association-analysis-for-heat-tolerance-at-flowering-detected-a-large-set-of-genes-involved-in-adaptation-to-thermal-and-other-stresses
#4
Tanguy Lafarge, Crisanta Bueno, Julien Frouin, Laval Jacquin, Brigitte Courtois, Nourollah Ahmadi
Fertilization sensitivity to heat in rice is a major issue within climate change scenarios in the tropics. A panel of 167 indica landraces and improved varieties was phenotyped for spikelet sterility (SPKST) under 38°C during anthesis and for several secondary traits potentially affecting panicle micro-climate and thus the fertilization process. The panel was genotyped with an average density of one marker per 29 kb using genotyping by sequencing. Genome-wide association analyses (GWAS) were conducted using three methods based on single marker regression, haplotype regression and simultaneous fitting of all markers, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28137319/biological-and-ecological-evidences-suggest-stipa-krylovii-pooideae-contributes-to-optimal-growth-performance-and-population-distribution-of-the-grasshopper-oedaleus-asiaticus
#5
X B Huang, M R McNeill, J C Ma, X H Qin, X B Tu, G C Cao, G J Wang, X Q Nong, Z H Zhang
Oedaleus asiaticus Bey. Bienko is a significant grasshopper pest species occurring in north Asian grasslands. Outbreaks often result in significant loss in grasses and economic losses. Interestingly, we found this grasshopper was mainly restricted to Stipa-dominated grassland. We suspected this may be related to the dominant grasses species, Stipa krylovii Roshev, and hypothesized that S. krylovii contributes to optimal growth performance and population distribution of O. asiaticus. A 4 year investigation showed that O...
January 31, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28135022/structural-overshoot-of-tree-growth-with-climate-variability-and-the-global-spectrum-of-drought-induced-forest-dieback
#6
Alistair S Jump, Paloma Ruiz-Benito, Sarah Greenwood, Craig D Allen, Thomas Kitzberger, Rod Fensham, Jordi Martínez-Vilalta, Francisco Lloret
Ongoing climate change poses significant threats to plant function and distribution. Increased temperatures and altered precipitation regimes amplify drought frequency and intensity, elevating plant stress and mortality. Large-scale forest mortality events will have far-reaching impacts on carbon and hydrological cycling, biodiversity, and ecosystem services. However, biogeographical theory and global vegetation models poorly represent recent forest die-off patterns. Furthermore, since trees are sessile and long-lived, their responses to climate extremes are substantially dependent on historical factors...
January 30, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28125286/plant-biodiversity-change-across-scales-during-the-anthropocene
#7
Mark Vellend, Lander Baeten, Antoine Becker-Scarpitta, Véronique Boucher-Lalonde, Jenny L McCune, Julie Messier, Isla H Myers-Smith, Dov F Sax
Plant communities have undergone dramatic changes in recent centuries, although not all such changes fit with the dominant biodiversity-crisis narrative used to describe them. At the global scale, future declines in plant species diversity are highly likely given habitat conversion in the tropics, although few extinctions have been documented for the Anthropocene to date (<0.1%). Nonnative species introductions have greatly increased plant species richness in many regions of the world at the same time that they have led to the creation of new hybrid polyploid species by bringing previously isolated congeners into close contact...
January 11, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/28123112/how-the-aridification-of-australia-structured-the-biogeography-and-influenced-the-diversification-of-a-large-lineage-of-australian-cicadas
#8
Christopher L Owen, David C Marshall, Kathy B R Hill, Chris Simon
Over the last 30 million years, Australia's landscape has undergone dramatic cooling and drying due to the establishment of the Antarctic Circumpolar Current and change in global CO[Formula: see text] levels. Studies have shown that many Australian organisms went extinct during these major cooling events, while others experienced adaptive radiations and increases in diversification rates as a result of exploiting new niches in the arid zone. Despite the many studies on diversification and biogeography in Australia, few have been continent-wide and none have focused on a group of organisms adapted to feeding on plants...
January 25, 2017: Systematic Biology
https://www.readbyqxmd.com/read/28117440/elevation-alters-ecosystem-properties-across-temperate-treelines-globally
#9
Jordan R Mayor, Nathan J Sanders, Aimée T Classen, Richard D Bardgett, Jean-Christophe Clément, Alex Fajardo, Sandra Lavorel, Maja K Sundqvist, Michael Bahn, Chelsea Chisholm, Ellen Cieraad, Ze'ev Gedalof, Karl Grigulis, Gaku Kudo, Daniel L Oberski, David A Wardle
Temperature is a primary driver of the distribution of biodiversity as well as of ecosystem boundaries. Declining temperature with increasing elevation in montane systems has long been recognized as a major factor shaping plant community biodiversity, metabolic processes, and ecosystem dynamics. Elevational gradients, as thermoclines, also enable prediction of long-term ecological responses to climate warming. One of the most striking manifestations of increasing elevation is the abrupt transitions from forest to treeless alpine tundra...
January 25, 2017: Nature
https://www.readbyqxmd.com/read/28111525/climate-change-will-increase-the-naturalization-risk-from-garden-plants-in-europe
#10
Iwona Dullinger, Johannes Wessely, Oliver Bossdorf, Wayne Dawson, Franz Essl, Andreas Gattringer, Günther Klonner, Holger Kreft, Michael Kuttner, Dietmar Moser, Jan Pergl, Petr Pyšek, Wilfried Thuiller, Mark van Kleunen, Patrick Weigelt, Marten Winter, Stefan Dullinger, Linda Beaumont
AIM: Plant invasions often follow initial introduction with a considerable delay. The current non-native flora of a region may hence contain species that are not yet naturalized but may become so in the future, especially if climate change lifts limitations on species spread. In Europe, non-native garden plants represent a huge pool of potential future invaders. Here, we evaluate the naturalization risk from this species pool and how it may change under a warmer climate. LOCATION: Europe...
January 2017: Global Ecology and Biogeography: a Journal of Macroecology
https://www.readbyqxmd.com/read/28108432/living-on-the-edge-conservation-genetics-of-seven-thermophilous-plant-species-in-a-high-arctic-archipelago
#11
Siri Birkeland, Idunn Elisabeth Borgen Skjetne, Anne Krag Brysting, Reidar Elven, Inger Greve Alsos
Small, isolated, and/or peripheral populations are expected to harbour low levels of genetic variation and may therefore have reduced adaptability to environmental change, including climate warming. In the Arctic, global warming has already caused vegetation change across the region and is acting as a significant stressor on Arctic biodiversity. Many of the rare plants in the Arctic are relicts from early Holocene warm periods, but their ability to benefit from the current warming is dependent on the viability of their populations...
January 20, 2017: AoB Plants
https://www.readbyqxmd.com/read/28106080/morphological-physiological-and-anatomical-traits-of-plant-functional-types-in-temperate-grasslands-along-a-large-scale-aridity-gradient-in-northeastern-china
#12
Chengyuan Guo, Linna Ma, Shan Yuan, Renzhong Wang
At the species level, plants can respond to climate changes by changing their leaf traits; however, there is scant information regarding the responses of morphological, physiological and anatomical traits of plant functional types (PFTs) to aridity. Herein, the leaf traits of five PFTs representing 17 plant species in temperate grasslands were examined along a large-scale aridity gradient in northeastern China. The results show that leaf thickness in shrubs, perennial grasses and forbs increased with heightened aridity...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103271/early-stages-of-sea-level-rise-lead-to-decreased-salt-marsh-plant-diversity-through-stronger-competition-in-mediterranean-climate-marshes
#13
Akana E Noto, Jonathan B Shurin
Climate change shuffles species ranges and creates novel interactions that may either buffer communities against climate change or exacerbate its effect. For instance, facilitation can become more prevalent in salt marshes under stressful conditions while competition is stronger in benign environments. Sea-level rise (SLR) is a consequence of climate change that affects the distribution of stress from inundation and salinity. To determine how interactions early in SLR are affected by changes in these two stressors in Mediterranean-climate marshes, we transplanted marsh turfs to lower elevations to simulate SLR and manipulated cover of the dominant plant species, Salicornia pacifica (formerly Salicornia virginica)...
2017: PloS One
https://www.readbyqxmd.com/read/28100041/contrasting-growth-forecasts-across-the-geographical-range-of-scots-pine-due-to-altitudinal-and-latitudinal-differences-in-climatic-sensitivity
#14
Luis Matías, Juan C Linares, Ángela Sánchez-Miranda, Alistair S Jump
Ongoing changes in global climate are altering ecological conditions for many species. The consequences of such changes are typically most evident at the edge of a species' geographical distribution, where differences in growth or population dynamics may result in range expansions or contractions. Understanding population responses to different climatic drivers along wide latitudinal and altitudinal gradients is necessary in order to gain a better understanding of plant responses to ongoing increases in global temperature and drought severity...
January 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28095496/opportunities-for-integrated-ecological-analysis-across-inland-australia-with-standardised-data-from-ausplots-rangelands
#15
Greg R Guerin, Ben Sparrow, Andrew Tokmakoff, Anita Smyth, Emrys Leitch, Zdravko Baruch, Andrew J Lowe
Australian rangelands ecosystems cover 81% of the continent but are understudied and continental-scale research has been limited in part by a lack of precise data that are standardised between jurisdictions. We present a new dataset from AusPlots Rangelands that enables integrative rangelands analysis due to its geographic scope and standardised methodology. The method provides data on vegetation and soils, enabling comparison of a suite of metrics including fractional vegetation cover, basal area, and species richness, diversity, and composition...
2017: PloS One
https://www.readbyqxmd.com/read/28080984/modelling-coffee-leaf-rust-risk-in-colombia-with-climate-reanalysis-data
#16
Daniel P Bebber, Ángela Delgado Castillo, Sarah J Gurr
Many fungal plant diseases are strongly controlled by weather, and global climate change is thus likely to have affected fungal pathogen distributions and impacts. Modelling the response of plant diseases to climate change is hampered by the difficulty of estimating pathogen-relevant microclimatic variables from standard meteorological data. The availability of increasingly sophisticated high-resolution climate reanalyses may help overcome this challenge. We illustrate the use of climate reanalyses by testing the hypothesis that climate change increased the likelihood of the 2008-2011 outbreak of Coffee Leaf Rust (CLR, Hemileia vastatrix) in Colombia...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28070296/host-plant-density-and-patch-isolation-drive-occupancy-and-abundance-at-a-butterfly-s-northern-range-margin
#17
Yoan Fourcade, Erik Öckinger
Marginal populations are usually small, fragmented, and vulnerable to extinction, which makes them particularly interesting from a conservation point of view. They are also the starting point of range shifts that result from climate change, through a process involving colonization of newly suitable sites at the cool margin of species distributions. Hence, understanding the processes that drive demography and distribution at high-latitude populations is essential to forecast the response of species to global changes...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069633/population-level-genetic-variation-and-climate-change-in-a-biodiversity-hotspot
#18
REVIEW
Kristina A Schierenbeck
INTRODUCTION: Estimated future climate scenarios can be used to predict where hotspots of endemism may occur over the next century, but life history, ecological and genetic traits will be important in informing the varying responses within myriad taxa. Essential to predicting the consequences of climate change to individual species will be an understanding of the factors that drive genetic structure within and among populations. Here, I review the factors that influence the genetic structure of plant species in California, but are applicable elsewhere; existing levels of genetic variation, life history and ecological characteristics will affect the ability of an individual taxon to persist in the presence of anthropogenic change...
January 9, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28052390/peatland-plant-communities-under-global-change-negative-feedback-loops-counteract-shifts-in-species-composition
#19
Per-Ola Hedwall, Jörg Brunet, Håkan Rydin
Mires (bogs and fens) are nutrient-limited peatland ecosystems, the vegetation of which is especially sensitive to nitrogen deposition and climate change. The role of mires in the global carbon cycle, and the delivery of different ecosystem services can be considerably altered by changes in the vegetation, which has a strong impact on peat-formation and hydrology. Mire ecosystems are commonly open with limited canopy cover but both nitrogen deposition and increased temperatures may increase the woody vegetation component...
January 2017: Ecology
https://www.readbyqxmd.com/read/28035270/population-demographic-history-of-a-temperate-shrub-rhododendron-weyrichii-ericaceae-on-continental-islands-of-japan-and-south-korea
#20
Watanabe Yoichi, Ichiro Tamaki, Shota Sakaguchi, Jong-Suk Song, Shin-Ichi Yamamoto, Nobuhiro Tomaru
Continental islands provide opportunities for testing the effects of isolation and migration on genetic variation in plant populations. In characteristic of continental islands is that the geographic connections between these islands, which are currently distinguished by seaways, have experienced fluctuations caused by sea-level changes due to climate oscillations during the Quaternary. Plant populations on the islands have migrated between these islands via the exposed seafloors or been isolated. Here, we examined the demographic history of a temperate shrub, Rhododendron weyrichii, which is distributed in the southwestern parts of the Japanese archipelago and on an island of South Korea, using statistical phylogeographic approaches based on the DNA sequences of two chloroplast and eight nuclear loci in samples analyzed from 18 populations on eight continental islands, and palaeodistribution modeling...
December 2016: Ecology and Evolution
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