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Climate change plant distribution

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/28426818/alternative-glacial-interglacial-refugia-demographic-hypotheses-tested-on-cephalocereus-columna-trajani-cactaceae-in-the-intertropical-mexican-drylands
#11
Amelia Cornejo-Romero, Carlos Fabián Vargas-Mendoza, Gustavo F Aguilar-Martínez, Javier Medina-Sánchez, Beatriz Rendón-Aguilar, Pedro Luis Valverde, Jose Alejandro Zavala-Hurtado, Alejandra Serrato, Sombra Rivas-Arancibia, Marco Aurelio Pérez-Hernández, Gerardo López-Ortega, Cecilia Jiménez-Sierra
Historic demography changes of plant species adapted to New World arid environments could be consistent with either the Glacial Refugium Hypothesis (GRH), which posits that populations contracted to refuges during the cold-dry glacial and expanded in warm-humid interglacial periods, or with the Interglacial Refugium Hypothesis (IRH), which suggests that populations contracted during interglacials and expanded in glacial times. These contrasting hypotheses are developed in the present study for the giant columnar cactus Cephalocereus columna-trajani in the intertropical Mexican drylands where the effects of Late Quaternary climatic changes on phylogeography of cacti remain largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28426754/assessing-environmental-attributes-and-effects-of-climate-change-on-sphagnum-peatland-distributions-in-north-america-using-single-and-multi-species-models
#12
Tobi A Oke, Heather A Hager
The fate of Northern peatlands under climate change is important because of their contribution to global carbon (C) storage. Peatlands are maintained via greater plant productivity (especially of Sphagnum species) than decomposition, and the processes involved are strongly mediated by climate. Although some studies predict that warming will relax constraints on decomposition, leading to decreased C sequestration, others predict increases in productivity and thus increases in C sequestration. We explored the lack of congruence between these predictions using single-species and integrated species distribution models as proxies for understanding the environmental correlates of North American Sphagnum peatland occurrence and how projected changes to the environment might influence these peatlands under climate change...
2017: PloS One
https://www.readbyqxmd.com/read/28422136/the-relationship-between-climate-change-and-the-endangered-rainforest-shrub-triunia-robusta-proteaceae-endemic-to-southeast-queensland-australia
#13
Yoko Shimizu-Kimura, Arnon Accad, Alison Shapcott
Threatened species in rainforests may be vulnerable to climate change, because of their potentially narrow thermal tolerances, small population sizes and restricted distributions. This study modelled climate induced changes on the habitat distribution of the endangered rainforest plant Triunia robusta, endemic to southeast Queensland, Australia. Species distribution models were developed for eastern Australia at 250 m grids and southeast Queensland at 25 m grids using ground-truthed presence records and environmental predictor data...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28409227/evolutionary-responses-to-climate-change-in-a-range-expanding-plant
#14
Mirka Macel, Tomáš Dostálek, Sonja Esch, Anna Bucharová, Nicole M van Dam, Katja Tielbörger, Koen J F Verhoeven, Zuzana Münzbergová
To understand the biological effects of climate change, it is essential to take into account species' evolutionary responses to their changing environments. Ongoing climate change is resulting in species shifting their geographical distribution ranges poleward. We tested whether a successful range expanding plant has rapidly adapted to the regional conditions in its novel range, and whether adaptation could be driven by herbivores. Furthermore, we investigated if enemy release occurred in the newly colonized areas and whether plant origins differed in herbivore resistance...
April 13, 2017: Oecologia
https://www.readbyqxmd.com/read/28397796/geographic-barriers-and-pleistocene-climate-change-shaped-patterns-of-genetic-variation-in-the-eastern-afromontane-biodiversity-hotspot
#15
Mario Mairal, Isabel Sanmartín, Alberto Herrero, Lisa Pokorny, Pablo Vargas, Juan J Aldasoro, Marisa Alarcón
The Eastern African Afromontane forest is getting increased attention in conservation studies because of its high endemicity levels and shrinking geographic distribution. Phylogeographic studies have found evidence of high levels of genetic variation structured across the Great Rift System. Here, we use the epiphytic plant species Canarina eminii to explore causal explanations for this pattern. Phylogeographic analyses were undertaken using plastid regions and AFLP fragments. Population genetic analyses, Statistical Parsimony, and Bayesian methods were used to infer genetic diversity, genealogical relationships, structure, gene flow barriers, and the spatiotemporal evolution of populations...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28394937/the-brazilian-freshwater-wetscape-changes-in-tree-community-diversity-and-composition-on-climatic-and-geographic-gradients
#16
Florian Wittmann, Márcia C M Marques, Geraldo Damasceno Júnior, Jean Carlos Budke, Maria T F Piedade, Astrid de Oliveira Wittmann, Juan Carlos Montero, Rafael L de Assis, Natália Targhetta, Pia Parolin, Wolfgang J Junk, J Ethan Householder
Wetlands harbor an important compliment of regional plant diversity, but in many regions data on wetland diversity and composition is still lacking, thus hindering our understanding of the processes that control it. While patterns of broad-scale terrestrial diversity and composition typically correlate with contemporary climate it is not clear to what extent patterns in wetlands are complimentary, or conflicting. To elucidate this, we consolidate data from wetland forest inventories in Brazil and examine patterns of diversity and composition along temperature and rainfall gradients spanning five biomes...
2017: PloS One
https://www.readbyqxmd.com/read/28386943/pinus-taeda-forest-growth-predictions-in-the-21-st-century-vary-with-site-mean-annual-temperature-and-site-quality
#17
Carlos A Gonzalez-Benecke, Robert O Teskey, Heather Dinon-Aldridge, Timothy A Martin
Climate projections from 20 downscaled global climate models (GCMs) were used with the 3-PG model to predict the future productivity and water use of planted loblolly pine (Pinus taeda) growing across the southeastern U.S. Predictions were made using Representative Concentration Pathways (RCP) 4.5 and 8.5. These represent scenarios in which total radiative forcing stabilizes before 2100 (RCP 4.5) or continues increasing throughout the century (RCP 8.5). Thirty six sites evenly distributed across the native range of the species were used in the analysis...
April 7, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28386059/the-demographic-response-of-a-deciduous-shrub-the-indigofera-bungeana-complex-fabaceae-to-the-pleistocene-climate-changes-in-east-asia
#18
Xue-Li Zhao, Xin-Fen Gao, Zhang-Ming Zhu, Yun-Dong Gao, Bo Xu
East Asia harbors the highest level of floristic diversity among the world's temperate regions. Despite the increase in phylogeographic studies of temperate plants in East Asia, far less attention has been paid to widely distributed deciduous shrubs that widespread across several floral regions. We sequenced two chloroplast DNA (cpDNA) fragments (ndhJ-trnF and trnD-trnT) and one nuclear DNA (Pgk1) of 472 individuals from 51 populations of such a group, the Indigofera bungeana complex. We used population genetic data as well as ecological niche modelling to examine the evolutionary history and glacial refugia during the Last Glacial Maximum (LGM) of this group...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28369998/the-importance-of-hydraulic-architecture-to-the-distribution-patterns-of-trees-in-a-central-amazonian-forest
#19
Luiza H M Cosme, Juliana Schietti, Flávia R C Costa, Rafael S Oliveira
Species distributions and assemblage composition may be the result of trait selection through environmental filters. Here, we ask whether filtering of species at the local scale could be attributed to their hydraulic architectural traits, revealing the basis of hydrological microhabitat partitioning in a Central Amazonian forest. We analyzed the hydraulic characteristics at tissue (anatomical traits, wood specific gravity (WSG)), organ (leaf area, specific leaf area (SLA), leaf area : sapwood area ratio) and whole-plant (height) levels for 28 pairs of congeneric species from 14 genera restricted to either valleys or plateaus of a terra-firme forest in Central Amazonia...
March 29, 2017: New Phytologist
https://www.readbyqxmd.com/read/28369162/species-climate-range-influences-hydraulic-and-stomatal-traits-in-eucalyptus-species
#20
Aimee E Bourne, Danielle Creek, Jennifer M R Peters, David S Ellsworth, Brendan Choat
Background and Aims: Plant hydraulic traits influence the capacity of species to grow and survive in water-limited environments, but their comparative study at a common site has been limited. The primary aim of this study was to determine whether selective pressures on species originating in drought-prone environments constrain hydraulic traits among related species grown under common conditions. Methods: Leaf tissue water relations, xylem anatomy, stomatal behaviour and vulnerability to drought-induced embolism were measured on six Eucalyptus species growing in a common garden to determine whether these traits were related to current species climate range and to understand linkages between the traits...
March 27, 2017: Annals of Botany
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