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Climate change plant distribution

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https://www.readbyqxmd.com/read/28633337/differences-in-below-ground-bud-bank-density-and-composition-along-a-climatic-gradient-in-the-temperate-steppe-of-northern-china
#1
Jianqiang Qian, Zhengwen Wang, Jitka Klimešová, Xiaotao Lü, Wennong Kuang, Zhimin Liu, Xingguo Han
Background and Aims: Understanding the changes in below-ground bud bank density and composition along a climatic gradient is essential for the exploration of species distribution pattern and vegetation composition in response to climatic changes. Nevertheless, investigations on bud banks along climatic gradients are still scarce. The below-ground bud bank is expected to be reduced in size in arid conditions, and costly, bud-bearing organs with long spacers would be replaced by more compact forms with buds that are better protected than those found in moist conditions...
June 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28618258/differential-physiological-and-genetic-responses-of-five-european-scots-pine-provenances-to-induced-water-stress
#2
Ana Carvalho, Ivo Pavia, Cláudia Fernandes, Jani Pires, Carlos Correia, Eunice Bacelar, José Moutinho-Pereira, Maria João Gaspar, João Bento, Maria Emília Silva, José Luís Lousada, José Lima-Brito
Pinus sylvestris L. (Scots pine) is the conifer with widest natural distribution area. Portugal constitutes its westernmost limit of distribution. Most of the Portuguese populations were planted but two autochthonous populations were recently ascribed to 'Serra do Gerês' (NW Portugal), and seem to be well adapted to the temperate climate. However, the ongoing climate changes may compromise their survival. With this study we intend to evaluate the anatomic-physiological and genetic responses of Scots pine from five European provenances ('Gerês', 'Puebla de Lillo', 'Montes Universales', Germany and Sweden) to three water availability regimes, in order to determine which one(s) present higher resistance to drought...
June 3, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28616633/xeromorphic-traits-help-to-maintain-photosynthesis-in-the-perhumid-climate-of-a-taiwanese-cloud-forest
#3
Shyam Pariyar, Shih-Chieh Chang, Daniel Zinsmeister, Haiyang Zhou, David A Grantz, Mauricio Hunsche, Juergen Burkhardt
Previous flux measurements in the perhumid cloud forest of northeastern Taiwan have shown efficient photosynthesis of the endemic tree species Chamaecyparis obtusa var. formosana even under foggy conditions in which leaf surface moisture would be expected. We hypothesized this to be the result of 'xeromorphic' traits of the Chamaecyparis leaves (hydrophobicity, stomatal crypts, stomatal clustering), which could prevent coverage of stomata by precipitation, fog, and condensation, thereby maintaining CO2 uptake...
June 14, 2017: Oecologia
https://www.readbyqxmd.com/read/28603538/testing-projected-climate-change-conditions-on-the-endoconidiophora-polonica-norway-spruce-pathosystem-shows-fungal-strain-specific-effects
#4
Riikka Linnakoski, Kristian M Forbes, Michael J Wingfield, Pertti Pulkkinen, Fred O Asiegbu
Climate changes, exemplified by increased temperatures and CO2 concentration, pose a global threat to forest health. Of particular concern are pests and pathogens, with a warming climate altering their distributions and evolutionary capacity, while impairing the ability of some plants to respond to infections. Progress in understanding and mitigating such effects is currently hindered by a lack of empirical research. Norway spruce (Picea abies) is one of the most economically important tree species in northern Europe, and is considered highly vulnerable to changes in climate...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28592679/glacial-survival-of-trophically-linked-boreal-species-in-northern-europe
#5
Maud C Quinzin, Signe Normand, Simon Dellicour, Jens-Christian Svenning, Patrick Mardulyn
Whether non-arctic species persisted in northern Europe during the Last Glacial Maximum (LGM) is highly debated. Until now, the debate has mostly focused on plants, with little consideration for other groups of organisms, e.g. the numerous plant-dependent insect species. Here, we study the late-Quaternary evolution of the European range of a boreo-montane leaf beetle, Gonioctena intermedia, which feeds exclusively on the boreal and temperate trees Prunus padus and Sorbus aucuparia Using species distribution models, we estimated the congruence between areas of past and present suitable climate for this beetle and its host plants...
June 14, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28554694/influence-of-altitude-and-enhanced-ultraviolet-b-radiation-on-tuber-production-seed-viability-leaf-pigments-and-morphology-in-the-wild-potato-species-solanum-kurtzianum-bitter-wittm-collected-from-an-elevational-gradient
#6
V N Ibañez, F J Berli, R W Masuelli, R A Bottini, C F Marfil
Climate change could lead to an upward shift in plant distribution, exposing populations to higher levels of ultraviolet (UV)-B radiation. In the framework of an in situ strategy for conserving potato wild relatives, we evaluated the effect of high UV-B levels on natural population of Solanum kurtzianum. The hypothesis is that plants from naturally higher altitudes are more adapted to increased UV-B radiation. Two populations from low and high altitudes were field supplemented using UV-B-lamps (+UV-B) or excluded from it with plastic filters...
August 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28554116/riparian-vegetation-in-the-alpine-connectome-terrestrial-aquatic-and-terrestrial-terrestrial-interactions
#7
Dragos G Zaharescu, Antonio Palanca-Soler, Peter S Hooda, Catalin Tanase, Carmen I Burghelea, Richard N Lester
Alpine regions are under increased attention worldwide for their critical role in early biogeochemical cycles, their high sensitivity to environmental change, and as repositories of natural resources of high quality. Their riparian ecosystems, at the interface between aquatic and terrestrial environments, play important geochemical functions in the watershed and are biodiversity hotspots, despite a harsh climate and topographic setting. With climate change rapidly affecting the alpine biome, we still lack a comprehensive understanding of the extent of interactions between riparian surface, lake and catchment environments...
May 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28552986/nutrient-addition-shifts-plant-community-composition-towards-earlier-flowering-species-in-some-prairie-ecoregions-in-the-u-s-central-plains
#8
Lori Biederman, Brent Mortensen, Philip Fay, Nicole Hagenah, Johannes Knops, Kimberly La Pierre, Ramesh Laungani, Eric Lind, Rebecca McCulley, Sally Power, Eric Seabloom, Pedro Tognetti
The distribution of flowering across the growing season is governed by each species' evolutionary history and climatic variability. However, global change factors, such as eutrophication and invasion, can alter plant community composition and thus change the distribution of flowering across the growing season. We examined three ecoregions (tall-, mixed, and short-grass prairie) across the U.S. Central Plains to determine how nutrient (nitrogen (N), phosphorus, and potassium (+micronutrient)) addition alters the temporal patterns of plant flowering traits...
2017: PloS One
https://www.readbyqxmd.com/read/28544671/a-common-thermal-niche-among-geographically-diverse-populations-of-the-widely-distributed-tree-species-eucalyptus-tereticornis-no-evidence-for-adaptation-to-climate-of-origin
#9
John E Drake, Angelica Vårhammar, Dushan Kumarathunge, Belinda E Medlyn, Sebastian Pfautsch, Peter B Reich, David T Tissue, Oula Ghannoum, Mark G Tjoelker
Impacts of climate warming depend on the degree to which plants are constrained by adaptation to their climate-of-origin or exhibit broad climatic suitability. We grew cool-origin, central and warm-origin provenances of Eucalyptus tereticornis in an array of common temperature environments from 18 to 35.5°C to determine if this widely distributed tree species consists of geographically contrasting provenances with differentiated and narrow thermal niches, or if provenances share a common thermal niche. The temperature responses of photosynthesis, respiration, and growth were equivalent across the three provenances, reflecting a common thermal niche despite a 2,200 km geographic distance and 13°C difference in mean annual temperature at seed origin...
May 23, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28536582/population-level-differentiation-in-growth-rates-and-leaf-traits-in-seedlings-of-the-neotropical-live-oak-quercus-oleoides-grown-under-natural-and-manipulated-precipitation-regimes
#10
Jose A Ramírez-Valiente, Alyson Center, Jed P Sparks, Kimberlee L Sparks, Julie R Etterson, Timothy Longwell, George Pilz, Jeannine Cavender-Bares
Widely distributed species are normally subjected to spatial heterogeneity in environmental conditions. In sessile organisms like plants, adaptive evolution and phenotypic plasticity of key functional traits are the main mechanisms through which species can respond to environmental heterogeneity and climate change. While extended research has been carried out in temperate species in this regard, there is still limited knowledge as to how species from seasonally-dry tropical climates respond to spatial and temporal variation in environmental conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28515478/molecular-phylogenetics-and-biogeography-of-the-mint-tribe-elsholtzieae-nepetoideae-lamiaceae-with-an-emphasis-on-its-diversification-in-east-asia
#11
Pan Li, Zhe-Chen Qi, Lu-Xian Liu, Tetsuo Ohi-Toma, Joongku Lee, Tsung-Hsin Hsieh, Cheng-Xin Fu, Kenneth M Cameron, Ying-Xiong Qiu
Elsholtzia and its allied genera such as Collinsonia and Perilla (tribe Elsholtzieae, Lamiaceae) are an ecologically and economically important plant group consisting of ~71 species, with most species distributed in East and Southeast Asia, and several species in North America. Their phylogeny and historical biogeography resulting in a distant intercontinental disjunction are poorly understood. Here we use two nuclear (ETS, ITS) and five chloroplast (rbcL, matK, trnL-F, ycf1, ycf1-rps15) fragments to reconstruct the phylogeny, biogeographic history, and patterns of diversification of Elsholtzieae...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28510631/how-might-edaphic-specialists-in-gypsum-islands-respond-to-climate-change-reciprocal-sowing-experiment-to-infer-local-adaptation-and-phenotypic-plasticity
#12
Ana M Sánchez, Patricia Alonso-Valiente, M José Albert, Adrián Escudero
Background and Aims: Local adaptation and phenotypic plasticity are considered key mechanisms for coping with climate warming, especially for plant species that inhabit island-like habitats. In Spain a complete guild of edaphic specialists, most of them threatened, occurs in gypsum outcrops, but how these species will respond to climate change has received little attention. Methods: A reciprocal sowing experiment was performed to determine the extent of local adaptation and phenotypic plasticity in five gypsophytes with contrasting distributions along a climate gradient...
May 16, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28510201/ultramafic-geoecology-of-south-and-southeast-asia
#13
REVIEW
M L Galey, A van der Ent, M C M Iqbal, N Rajakaruna
Globally, ultramafic outcrops are renowned for hosting floras with high levels of endemism, including plants with specialised adaptations such as nickel or manganese hyperaccumulation. Soils derived from ultramafic regoliths are generally nutrient-deficient, have major cation imbalances, and have concomitant high concentrations of potentially phytotoxic trace elements, especially nickel. The South and Southeast Asian region has the largest surface occurrences of ultramafic regoliths in the world, but the geoecology of these outcrops is still poorly studied despite severe conservation threats...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28493368/microbial-nitrous-oxide-emissions-in-dryland-ecosystems-mechanisms-microbiome-and-mitigation
#14
Hang-Wei Hu, Pankaj Trivedi, Ji-Zheng He, Brajesh K Singh
Globally, drylands represent the largest terrestrial biome and are projected to expand by 23% by the end of this century. Drylands are characterized by extremely low levels of water and nutrients and exhibit highly heterogeneous distribution in plants and biocrusts which make microbial processes shaping the dryland functioning rather unique compared with other terrestrial ecosystems. Nitrous oxide (N2 O) is a powerful greenhouse gas with ozone depletion potential. Despite of the pivotal influences of microbial communities on the production and consumption of N2 O, we have limited knowledge of the biological pathways and mechanisms underpinning N2 O emissions from drylands, which are estimated to account for 30% of total gaseous nitrogen emissions on Earth...
May 10, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28480020/the-distribution-diversity-and-conservation-status-of-cycas-in-china
#15
REVIEW
Ying Zheng, Jian Liu, Xiuyan Feng, Xun Gong
As ancient gymnosperm and woody plants, cycads have survived through dramatic tectonic activities, climate fluctuation, and environmental variations making them of great significance in studying the origin and evolution of flora biodiversity. However, they are among the most threatened plant groups in the world. The principal aim of this review is to outline the distribution, diversity, and conservation status of Cycas in China and provide suggestions for conservation practices. In this review, we describe the taxonomy, distribution, and conservation status of Cycas in China...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28475607/diverse-range-dynamics-and-dispersal-routes-of-plants-on-the-tibetan-plateau-during-the-late-quaternary
#16
Haibin Yu, Yili Zhang, Zhaofeng Wang, Linshan Liu, Zhao Chen, Wei Qi
Phylogeographical studies have suggested that several plant species on the Tibetan Plateau (TP) underwent recolonization during the Quaternary and may have had distinct range dynamics in response to the last glacial. To further test this hypothesis and locate the possible historical dispersal routes, we selected 20 plant species from different parts of the TP and modeled their geographical distributions over four time periods using species distribution models (SDMs). Furthermore, we applied the least-cost path method together with SDMs and shared haplotypes to estimate their historical dispersal corridors...
2017: PloS One
https://www.readbyqxmd.com/read/28472189/habitat-specific-differences-alter-traditional-biogeographic-patterns-of-life-history-in-a-climate-change-induced-range-expansion
#17
Megan E Riley, Blaine D Griffen
Range shifts and expansions resulting from global climate change have the potential to create novel communities with unique plant-animal interactions. Organisms expanding their range into novel biotic and abiotic environments may encounter selection pressures that alter traditional biogeographic patterns of life history traits. Here, we used field surveys to examine latitudinal patterns of life history traits in a broadly distributed ectotherm (mangrove tree crab Aratus pisonii) that has recently experienced a climate change-induced range expansion into a novel habitat type...
2017: PloS One
https://www.readbyqxmd.com/read/28459124/museum-specimen-data-reveal-emergence-of-a-plant-disease-may-be-linked-to-increases-in-the-insect-vector-population
#18
Adam R Zeilinger, Giovanni Rapacciuolo, Daniel Turek, Peter T Oboyski, Rodrigo P P Almeida, George K Roderick
The emergence rate of new plant diseases is increasing due to novel introductions, climate change, and changes in vector populations, posing risks to agricultural sustainability. Assessing and managing future disease risks depends on understanding the causes of contemporary and historical emergence events. Since the mid-1990s, potato growers in the western United States, Mexico, and Central America have experienced severe yield loss from Zebra Chip disease and have responded by increasing insecticide use to suppress populations of the insect vector, the potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae)...
April 29, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28439286/snp-discovery-and-genetic-variation-of-candidate-genes-relevant-to-heat-tolerance-and-agronomic-traits-in-natural-populations-of-sand-rice-agriophyllum-squarrosum
#19
Pengshan Zhao, Jiwei Zhang, Chaoju Qian, Qin Zhou, Xin Zhao, Guoxiong Chen, Xiao-Fei Ma
The extreme stress tolerance and high nutritional value of sand rice (Agriophyllum squarrosum) make it attractive for use as an alternative crop in response to concerns about ongoing climate change and future food security. However, a lack of genetic information hinders understanding of the mechanisms underpinning the morphological and physiological adaptations of sand rice. In the present study, we sequenced and analyzed the transcriptomes of two individuals representing semi-arid [Naiman (NM)] and arid [Shapotou (SPT)] sand rice genotypes...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28437594/a-mesoamerican-origin-of-cherimoya-annona-cherimola-mill-implications-for-the-conservation-of-plant-genetic-resources
#20
N Larranaga, F J Albertazzi, G Fontecha, M Palmieri, H Rainer, M van Zonneveld, J I Hormaza
Knowledge on the structure and distribution of genetic diversity is a key aspect in order to plan and execute an efficient conservation and utilization of the genetic resources of any crop as well as for determining historical demographic inferences. In this work, a large data set of 1765 accessions of cherimoya (Annona cherimola Mill, Annonaceae), an underutilized fruit tree crop native to the neotropics and used as a food source by pre-Columbian cultures, was collected from 6 different countries across the American continent and amplified with 9 highly informative microsatellite markers...
April 24, 2017: Molecular Ecology
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