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Climate change plant distribution

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https://www.readbyqxmd.com/read/29770964/below-ground-biotic-interactions-moderated-the-postglacial-range-dynamics-of-trees
#1
Jason Pither, Brian J Pickles, Suzanne W Simard, Alejandro Ordonez, John W Williams
Tree range shifts during geohistorical global change events provide a useful real-world model for how future changes in forest biomes may proceed. In North America, during the last deglaciation, the distributions of tree taxa varied significantly as regards the rate and direction of their responses for reasons that remain unclear. Local-scale processes such as establishment, growth, and resilience to environmental stress ultimately influence range dynamics. Despite the fact that interactions between trees and soil biota are known to influence local-scale processes profoundly, evidence linking below-ground interactions to distribution dynamics remains scarce...
May 17, 2018: New Phytologist
https://www.readbyqxmd.com/read/29763879/plant-and-vegetation-functional-responses-to-cumulative-high-nitrogen-deposition-in-rear-edge-heathlands
#2
Angela Taboada, Javier Calvo-Fernández, Elena Marcos, Leonor Calvo
Elevated atmospheric nitrogen (N) deposition is a major driver of change, altering the structure/functioning of nutrient-poor Calluna vulgaris-heathlands over Europe. These effects amply proven for north-western/central heathlands may, however, vary across the ecosystem's distribution, especially at the range limits, as heathlands are highly vulnerable to land-use changes combined with present climate change. This is an often overlooked and greatly understudied aspect of the ecology of heathlands facing global change...
May 12, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29760885/areas-of-high-conservation-value-at-risk-by-plant-invaders-in-georgia-under-climate-change
#3
Daniel Slodowicz, Patrice Descombes, David Kikodze, Olivier Broennimann, Heinz Müller-Schärer
Invasive alien plants (IAP) are a threat to biodiversity worldwide. Understanding and anticipating invasions allow for more efficient management. In this regard, predicting potential invasion risks by IAPs is essential to support conservation planning into areas of high conservation value (AHCV) such as sites exhibiting exceptional botanical richness, assemblage of rare, and threatened and/or endemic plant species. Here, we identified AHCV in Georgia, a country showing high plant richness, and assessed the susceptibility of these areas to colonization by IAPs under present and future climatic conditions...
May 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29760715/higher-temperature-at-lower-elevation-sites-fails-to-promote-acclimation-or-adaptation-to-heat-stress-during-pollen-germination
#4
Lluvia Flores-Rentería, Amy V Whipple, Gilbert J Benally, Adair Patterson, Brandon Canyon, Catherine A Gehring
High temperatures associated with climate change are expected to be detrimental for aspects of plant reproduction, such as pollen viability. We hypothesized that (1) higher peak temperatures predicted with climate change would have a minimal effect on pollen viability, while high temperatures during pollen germination would negatively affect pollen viability, (2) high temperatures during pollen dispersal would facilitate acclimation to high temperatures during pollen germination, and (3) pollen from populations at sites with warmer average temperatures would be better adapted to high temperature peaks...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29756204/distributions-of-ectomycorrhizal-and-foliar-endophytic-fungal-communities-associated-with-pinus-ponderosa-along-a-spatially-constrained-elevation-gradient
#5
Elizabeth A Bowman, A Elizabeth Arnold
PREMISE OF THE STUDY: Understanding distributions of plant-symbiotic fungi is important for projecting responses to environmental change. Many coniferous trees host ectomycorrhizal fungi (EM) in association with roots and foliar endophytic fungi (FE) in leaves. We examined how EM and FE associated with Pinus ponderosa each vary in abundance, diversity, and community structure over a spatially constrained elevation gradient that traverses four plant communities, 4°C in mean annual temperature, and 15 cm in mean annual precipitation...
May 13, 2018: American Journal of Botany
https://www.readbyqxmd.com/read/29751326/trace-elements-bioaccumulation-in-liver-and-fur-of-myotis-myotis-from-two-caves-of-the-eastern-side-of-sicily-italy-a-comparison-between-a-control-and-a-polluted-area
#6
Margherita Ferrante, Maria Teresa Spena, Béatrice Veronique Hernout, Alfina Grasso, Andrea Messina, Rosario Grasso, Paolo Agnelli, Maria Violetta Brundo, Chiara Copat
Environmental pollution is a topic of great interest because it directly affects the quality of ecosystems and of all living organisms at different trophic and systematic levels. Together with the global climate change, the long-term surviving of many species of plants and animals is threaten, distributional patterns at global and regional levels are altered and it results in local assemblages of species that are quite different from those that currently constitute coevolved communities. .For this study, the species Myotis myotis was used as bioindicator and it was sampled from two caves in the south-east of Sicily, Pipistrelli chosen as control area and Palombara chosen as polluted area, to measure the concentrations of trace elements in fur and liver tissues...
May 7, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29748910/does-the-increase-in-ambient-co-2-concentration-elevate-allergy-risks-posed-by-oak-pollen
#7
Kyu Rang Kim, Jae-Won Oh, Su-Young Woo, Yun Am Seo, Young-Jin Choi, Hyun Seok Kim, Wi Young Lee, Baek-Jo Kim
Oak pollen is a major respiratory allergen in Korea, and the distribution of oak trees is expected to increase by ecological succession and climate change. One of the drivers of climate change is increasing CO2 , which is also known to amplify the allergy risk of weed pollen by inducing elevated allergenic protein content. However, the impact of CO2 concentration on tree pollen is not clearly understood due to the experimental difficulties in carrying out extended CO2 treatment. To study the response of pollen production of sawtooth oak trees (Quercus acutissima) to elevated levels of ambient CO2 , three open-top chambers at the National Institute of Forest Science in Suwon, Korea were utilized with daytime (8 am-6 pm) CO2 concentrations of ambient (× 1...
May 10, 2018: International Journal of Biometeorology
https://www.readbyqxmd.com/read/29713330/climate-is-not-all-evidence-from-phylogeography-of-rhodiola-fastigiata-crassulaceae-and-comparison-to-its-closest-relatives
#8
Jian-Qiang Zhang, Da-Lv Zhong, Wei-Jie Song, Ruo-Wei Zhu, Wei-Yue Sun
How geological events and climate oscillations in the Pleistocene glaciation shaped the geographic distribution of genetic variation of species on the Qinghai-Tibetan Plateau (QTP) and its adjacent areas has been extensively studied. However, little studies have investigated whether closely related species in the same genus with similar physiological and life history traits responded similarly to the glacial climatic oscillations. If this is not the case, we would expect that the population histories of studied species were not driven by extrinsic environmental changes alone...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29710632/maxent-modeling-for-predicting-the-potential-geographical-distribution-of-two-peony-species-under-climate-change
#9
Keliang Zhang, Linjun Yao, Jiasong Meng, Jun Tao
Paeonia (Paeoniaceae), an economically important plant genus, includes many popular ornamentals and medicinal plant species used in traditional Chinese medicine. Little is known about the properties of the habitat distribution and the important eco-environmental factors shaping the suitability. Based on high-resolution environmental data for current and future climate scenarios, we modeled the present and future suitable habitat for P. delavayi and P. rockii by Maxent, evaluated the importance of environmental factors in shaping their distribution, and identified distribution shifts under climate change scenarios...
April 13, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29706789/species-conservation-profile-of-moths-insecta-lepidoptera-from-azores-portugal
#10
Paulo A V Borges, Jose V Pérez Santa-Rita, Rui Nunes, Anja Danielczak, Axel Hochkirch, Isabel R Amorim, Lucas Lamelas-Lopez, Ole Karsholt, Virgílio Vieira
Background: The few remnants of Azorean native forests harbour a unique set of endemic moths (Insecta, Lepidoptera), some of them under severe long term threats due to small sized habitats or climatic changes. In this contribution, we present the IUCN Red List profiles of 34 endemic moths to the Azorean archipelago, including species belonging to two diverse families: Noctuidae (11 species) and Crambidae (eight species). The objective of this paper is to assess all endemic Azorean moth species and advise on possible future research and conservation actions critical for the long-trem survival of the most endangered species...
2018: Biodiversity Data Journal
https://www.readbyqxmd.com/read/29698558/ecological-niche-modeling-for-a-cultivated-plant-species-a-case-study-on-taro-colocasia-esculenta-in-hawaii
#11
Mali'o Kodis, Peter Galante, Eleanor J Sterling, Mary E Blair
Under the threat of ongoing and projected climate change, communities in the Pacific Islands face challenges of adapting culture and lifestyle to accommodate a changing landscape. Few models can effectively predict how biocultural livelihoods might be impacted. Here, we examine how environmental and anthropogenic factors influence an ecological niche model (ENM) for the realized niche of cultivated taro (Colocasia esculenta) in Hawaii. We created and tuned two sets of ENMs: one using only environmental variables, and one using both environmental and cultural characteristics of Hawaii...
April 26, 2018: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/29690760/tissues-lignification-cell-wall-p-coumaroylation-and-degradability-of-maize-stems-depend-on-water-status
#12
F El Hage, D Legland, N Borrega, M-P Jacquemot, Y Griveau, S Coursol, V Méchin, M Reymond
Water supply and valorization are two urgent issues in the utilization of maize biomass in the context of climate change and replacement of fossil resources. Maximizing maize biomass valorization is of interest to make biofuel conversion competitive, and to increase forage energetic value for animal fodder. One way to estimate biomass valorization is to quantify cell wall degradability. In this study, we evaluated the impact of water supply on cell wall degradability, cell wall contents and structure, and distribution of lignified cell types in maize internodes using dedicated high throughput tools to effectively phenotype maize internodes from 11 inbred lines under two contrasting irrigation scenarios in field trials over three years...
April 24, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29683551/changes-in-the-range-of-the-medicinal-herb-eriocaulon-buergerianum-koern-eriocaulaceae-under-climate-change
#13
Yi-Fei Xie, Li Yang, Rongyan Deng, Min-Hao Chen, Xiao-Feng Luan, Elisa Gottardi, Zhi-Xiang Zhang
BACKGROUND: Eriocaulon buergerianum Koern. (Eriocaulaceae) is one of the most common and least expensive herbal medicines for eye diseases. This species is facing potential threats from climate change. Insufficient biogeographical knowledge of this plant species can hinder its effective management for long-term population survival. METHODS: We integrated ecological niche modelling (Biomod2) with 70 records of E. buergerianum and 8 environmental variables to estimate the changes in distribution over time...
April 23, 2018: Plant Biology
https://www.readbyqxmd.com/read/29675967/shrub-range-expansion-alters-diversity-and-distribution-of-soil-fungal-communities-across-an-alpine-elevation-gradient
#14
Courtney G Collins, Jason E Stajich, Sören E Weber, Nuttapon Pombubpa, Jeffrey M Diez
Global climate and land use change are altering plant and soil microbial communities worldwide, particularly in arctic and alpine biomes where warming is accelerated. The widespread expansion of woody shrubs into historically herbaceous alpine plant zones is likely to interact with climate to affect soil microbial community structure and function, however our understanding of alpine soil ecology remains limited. This study aimed to 1) determine whether the diversity and community composition of soil fungi vary across elevation gradients and to 2) assess the impact of woody shrub expansion on these patterns...
April 19, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29664961/understanding-the-dynamics-in-distribution-of-invasive-alien-plant-species-under-predicted-climate-change-in-western-himalaya
#15
Sunil Thapa, Vishwas Chitale, Srijana Joshi Rijal, Neha Bisht, Bharat Babu Shrestha
Invasive alien plant species (IAPS) can pose severe threats to biodiversity and stability of native ecosystems, therefore, predicting the distribution of the IAPS plays a crucial role in effective planning and management of ecosystems. In the present study, we use Maximum Entropy (MaxEnt) modelling approach to predict the potential of distribution of eleven IAPS under future climatic conditions under RCP 2.6 and RCP 8.5 in part of Kailash sacred landscape region in Western Himalaya. Based on the model predictions, distribution of most of these invasive plants is expected to expand under future climatic scenarios, which might pose a serious threat to the native ecosystems through competition for resources in the study area...
2018: PloS One
https://www.readbyqxmd.com/read/29659603/genetic-diversity-and-distribution-of-senegalia-senegal-l-britton-under-climate-change-scenarios-in-west-africa
#16
Paul Terwase Lyam, Joaquín Duque-Lazo, Walter Durka, Frank Hauenschild, Jan Schnitzler, Ingo Michalak, Oluwatoyin Temitayo Ogundipe, Alexandra Nora Muellner-Riehl
Climate change is predicted to impact species' genetic diversity and distribution. We used Senegalia senegal (L.) Britton, an economically important species distributed in the Sudano-Sahelian savannah belt of West Africa, to investigate the impact of climate change on intraspecific genetic diversity and distribution. We used ten nuclear and two plastid microsatellite markers to assess genetic variation, population structure and differentiation across thirteen sites in West Africa. We projected suitable range, and potential impact of climate change on genetic diversity using a maximum entropy approach, under four different climate change scenarios...
2018: PloS One
https://www.readbyqxmd.com/read/29651147/response-to-climate-change-of-montane-herbaceous-plants-in-the-genus-rhodiola-predicted-by-ecological-niche-modelling
#17
Jianling You, Xiaoping Qin, Sailesh Ranjitkar, Stephen C Lougheed, Mingcheng Wang, Wen Zhou, Dongxin Ouyang, Yin Zhou, Jianchu Xu, Wenju Zhang, Yuguo Wang, Ji Yang, Zhiping Song
Climate change profoundly influences species distributions. These effects are evident in poleward latitudinal range shifts for many taxa, and upward altitudinal range shifts for alpine species, that resulted from increased annual global temperatures since the Last Glacial Maximum (LGM, ca. 22,000 BP). For the latter, the ultimate consequence of upward shifts may be extinction as species in the highest alpine ecosystems can migrate no further, a phenomenon often characterized as "nowhere to go". To predict responses to climate change of the alpine plants on the Qinghai-Tibetan Plateau (QTP), we used ecological niche modelling (ENM) to estimate the range shifts of 14 Rhodiola species, beginning with the Last Interglacial (ca...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29627559/spring-fen-habitat-islands-in-a-warming-climate-partitioning-the-effects-of-mesoclimate-air-and-water-temperature-on-aquatic-and-terrestrial-biota
#18
Michal Horsák, Vendula Polášková, Marie Zhai, Jindřiška Bojková, Vít Syrovátka, Vanda Šorfová, Jana Schenková, Marek Polášek, Tomáš Peterka, Michal Hájek
Climate warming and associated environmental changes lead to compositional shifts and local extinctions in various ecosystems. Species closely associated with rare island-like habitats such as groundwater-dependent spring fens can be severely threatened by these changes due to a limited possibility to disperse. It is, however, largely unknown to what extent mesoclimate affects species composition in spring fens, where microclimate is buffered by groundwater supply. We assembled an original landscape-scale dataset on species composition of the most waterlogged parts of isolated temperate spring fens in the Western Carpathian Mountains along with continuously measured water temperature and hydrological, hydrochemical, and climatic conditions...
April 5, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29626775/climate-change-and-associated-spatial-heterogeneity-of-pakistan-empirical-evidence-using-multidisciplinary-approach
#19
Ghaffar Ali
Climate change is a multidimensional phenomenon, which has various implications for the environment and socio-economic conditions of the people. Its effects are deeper in an agrarian economy which is susceptible to the vagaries of nature. Therefore, climate change directly impacts the society in different ways, and society must pay the cost. Focusing on this truth, the main objective of this research was to investigate the empirical changes and spatial heterogeneity in the climate of Pakistan in real terms using time series data...
April 4, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29619300/tuning-transpiration-by-interfacial-solar-absorber-leaf-engineering
#20
Shendong Zhuang, Lin Zhou, Weichao Xu, Ning Xu, Xiaozhen Hu, Xiuqiang Li, Guangxin Lv, Qinghui Zheng, Shining Zhu, Zhenlin Wang, Jia Zhu
Plant transpiration, a process of water movement through a plant and its evaporation from aerial parts especially leaves, consumes a large component of the total continental precipitation (≈48%) and significantly influences global water distribution and climate. To date, various chemical and/or biological explorations have been made to tune the transpiration but with uncertain environmental risks. In recent years, interfacial solar steam/vapor generation is attracting a lot of attention for achieving high energy transfer efficiency...
February 2018: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
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