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Climate change plant distribution

Guanghui Dai, Jun Yang, Siran Lu, Conghong Huang, Jing Jin, Peng Jiang, Pengbo Yan
Biodiesel produced from woody oil plants is considered a green substitute for fossil fuels. However, a potential negative impact of growing woody oil plants on a large scale is the introduction of highly invasive species into susceptible regions. In this study, we examined the potential invasion risk of woody oil plants in China's protected areas under future climate conditions. We simulated the current and future potential distributions of three invasive woody oil plants, Jatropha curcas, Ricinus communis, and Aleurites moluccana, under two climate change scenarios (RCP2...
January 18, 2018: Scientific Reports
Cui-Jing Zhang, Manuel Delgado-Baquerizo, John E Drake, Peter B Reich, Mark G Tjoelker, David T Tissue, Jun-Tao Wang, Ji-Zheng He, Brajesh K Singh
Plant characteristics in different provenances within a single species may vary in response to climate change, which might alter soil microbial communities and ecosystem functions. We conducted a glasshouse experiment and grew seedlings of three provenances (temperate, subtropical and tropical origins) of a tree species (i.e. Eucalyptus tereticornis) at different growth temperatures (18, 21.5, 25, 28.5, 32 and 35.5°C) for 54 days. At the end of the experiment, bacterial and fungal community composition, diversity and abundance were characterized...
January 12, 2018: Environmental Microbiology Reports
Ishara Perera, Saman Seneweera, Naoki Hirotsu
Myo-inositol hexaphosphate, also known as phytic acid (PA), is the most abundant storage form of phosphorus in seeds. PA acts as a strong chelator of metal cations to form phytate and is considered an anti-nutrient as it reduces the bioavailability of important micronutrients. Although the major nutrient source for more than one-half of the global population, rice is a poor source of essential micronutrients. Therefore, biofortification and reducing the PA content of rice have arisen as new strategies for increasing micronutrient bioavailability in rice...
January 11, 2018: Rice
Haifeng Tian, Mingquan Wu, Li Wang, Zheng Niu
Areas and spatial distribution information of paddy rice are important for managing food security, water use, and climate change. However, there are many difficulties in mapping paddy rice, especially mapping multi-season paddy rice in rainy regions, including differences in phenology, the influence of weather, and farmland fragmentation. To resolve these problems, a novel multi-season paddy rice mapping approach based on Sentinel-1A and Landsat-8 data is proposed. First, Sentinel-1A data were enhanced based on the fact that the backscattering coefficient of paddy rice varies according to its growth stage...
January 11, 2018: Sensors
Trevor D S Bloom, Aquila Flower, Eric G DeChaine
Species Distribution Models (SDMs) are widely used to understand environmental controls on species' ranges and to forecast species range shifts in response to climatic changes. The quality of input data is crucial determinant of the model's accuracy. While museum records can be useful sources of presence data for many species, they do not always include accurate geographic coordinates. Therefore, actual locations must be verified through the process of georeferencing. We present a practical, standardized manual georeferencing method (the Spatial Analysis Georeferencing Accuracy (SAGA) protocol) to classify the spatial resolution of museum records specifically for building improved SDMs...
January 2018: Ecology and Evolution
Lalasia Bialic-Murphy, Orou G Gaoue
Climate projections forecast more extreme interannual climate variability over time, with an increase in the severity and duration of extreme drought and rainfall events. Based on bioclimatic envelope models, it is projected that changing precipitation patterns will drastically alter the spatial distributions and density of plants and be a primary driver of biodiversity loss. However, many other underlying mechanisms can impact plant vital rates (i.e., survival, growth, and reproduction) and population dynamics...
January 2018: Ecology and Evolution
Chenxia Liang, Gang Feng, Xingfeng Si, Lingfeng Mao, Guisheng Yang, Jens-Christian Svenning, Jie Yang
Bird species richness is mediated by local, regional, and historical factors, for example, competition, environmental heterogeneity, contemporary, and historical climate. Here, we related bird species richness with phylogenetic relatedness of bird assemblages, plant species richness, topography, contemporary climate, and glacial-interglacial climate change to investigate the relative importance of these factors. This study was conducted in Inner Mongolia, an arid and semiarid region with diverse vegetation types and strong species richness gradients...
January 2018: Ecology and Evolution
Gaëtan Louarn, Lucas Faverjon
Background and Aims: Individual-based models (IBMs) are promising tools to disentangle plant interactions in multi-species grasslands and foster innovative species mixtures. This study describes an IBM dealing with the morphogenesis, growth and C-N acquisition of forage legumes that integrates plastic responses from functional-structural plant models. Methods: A generic model was developed to account for herbaceous legume species with contrasting above- and below-ground morphogenetic syndromes and to integrate the responses of plants to light, water and N...
December 29, 2017: Annals of Botany
E Henry Lee, Peter A Beedlow, Ronald S Waschmann, David T Tingey, Steven Cline, Michael Bollman, Charlotte Wickham, Cailie Carlile
The fungal pathogen, Phaeocryptopus gaeumannii, causing Swiss needle cast (SNC) occurs wherever Douglas-fir is found but disease damage is believed to be limited in the U.S. Pacific Northwest (PNW) to the Coast Range of Oregon and Washington (Hansen et al., Plant Disease, 2000, 84, 773; Rosso & Hansen, Phytopathology, 2003, 93, 790; Shaw, et al., Journal of Forestry, 2011, 109, 109). However, knowledge remains limited on the history and spatial distribution of SNC impacts in the PNW. We reconstructed the history of SNC impacts on mature Douglas-fir trees based on tree-ring width chronologies from western Oregon...
December 2017: Ecology and Evolution
Irene L Gorosito, Richard J Douglass
Small-mammal population densities can be regulated by bottom-up (food availability) and top-down (predation) forces. In 1993, an El Niño Southern Oscillation event was followed by a cluster of human hantavirus with pulmonary syndrome in the southwestern United States. An upward trophic cascade hypothesis was proposed as an explanation for the outbreak: Increased plant productivity as a consequence of El Niño precipitations led to an unusual increase in distribution and abundance of deer mice (Peromyscus maniculatus; reservoir host of Sin Nombre virus)...
December 2017: Ecology and Evolution
Rajendra Mohan Panda, Mukunda Dev Behera, Partha Sarathi Roy
Understanding the impact of climate change on species invasion is crucial for sustainable biodiversity conservation. Through this study, we try to answer how species differing in phenological cycles, specifically Cassia tora and Lantana camara, differ in the manner in which they invade new regions in India in the future climate. Since both species occupy identical niches, exploring their invasive potential in different climate change scenarios will offer critical insights into invasion and inform ecosystem management...
December 28, 2017: Journal of Environmental Management
Torbjörn Tyler, Lina Herbertsson, Pål Axel Olsson, Lars Fröberg, Kjell-Arne Olsson, Åke Svensson, Ola Olsson
Land-use changes, pollution and climate warming during the 20th century have caused changes in biodiversity across the world. However, in many cases the environmental drivers are poorly understood. To identify and rank the drivers currently causing broad-scale floristic changes in N Europe, we analyzed data from two vascular plant surveys of 200 randomly selected 2.5×2.5 km grid squares in Scania, southernmost Sweden, conducted 1989-2006 and 2008-2015, respectively, and related the change in frequency (performance) of the species to a wide range of species-specific plant traits...
December 28, 2017: Global Change Biology
Daniel E Winkler, Joshua L Conver, Travis E Huxman, Don E Swann
The long-lived columnar saguaro cactus (Carnegiea gigantea) is among the most studied plants in the world. Long-term studies have shown saguaro establishment to be generally episodic and strongly influenced by precipitation and temperature. Water limitation through lower-than-average seasonal rainfall and elevated temperatures increasing evaporative loss can reduce survivorship of recent germinates. Thus, multi-year, extended drought could cause populations to decline as older saguaros die without replacement...
December 27, 2017: Ecology
Thomas A Ebert, Louis M Barr, James L Bodkin, Dirk Burcham, Dominique Bureau, Henry S Carson, Nancy L Caruso, Jennifer E Caselle, Jeremy T Claisse, Sabrina Clemente, Kathryn Davis, Paul M Detwiler, John D Dixon, David O Duggins, John M Engle, James A Estes, Scott D Groth, Benjamin M Grupe, Peter Halmay, Kyle P Hebert, José C Hernández, Laura J Jurgens, Peter E Kalvass, Michael C Kenner, Brenda Kenner, David J Kushner, Lynn C Lee, David L Leighton, Gabriela Montaño-Moctezuma, J Eric Munk, Irma Olguin, Julio S Palleiro, David O Parker, John S Pearse, Daniel J Pondella, Laura Rogers-Bennett, Stephen C Schroeter, A Ole Shelton, Jorge Sonnenholzner, Ian K Taniguchi, Glenn R VanBlaricom, Jane C Watson, Benjamin P Weitzman, Jonathan P Williams, Jennifer Yakimishyn, Zane Zhang
Size, growth, and density have been studied for North American Pacific coast sea urchins Strongylocentrotus purpuratus, S. droebachiensis, S. polyacanthus, Mesocentrotus (Strongylocentrotus) franciscanus, Lytechinus pictus, Centrostephanus coronatus, and Arbacia stellata by various workers at diverse sites and for varying lengths of time from 1956 to present. Numerous peer-reviewed publications have used some of these data but some data have appeared only in graduate theses or the gray literature. There also are data that have never appeared outside original data sheets...
December 27, 2017: Ecology
Elena Mosca, Erica A Di Pierro, Katharina B Budde, David B Neale, Santiago C González-Martínez
Genetic responses to environmental changes take place at different spatial scales. While the effect of environment on the distribution of species' genetic diversity at large geographical scales has been the focus of several recent studies, its potential effects on genetic structure at local scales are understudied. Environmental effects on fine-scale spatial genetic structure (FSGS) were investigated in four Alpine conifer species (five to eight populations per species) from the eastern Italian Alps. Significant FSGS was found for 11 out of 25 populations...
December 23, 2017: Molecular Ecology
Franziska Eller, Hana Skálová, Joshua S Caplan, Ganesh P Bhattarai, Melissa K Burger, James T Cronin, Wen-Yong Guo, Xiao Guo, Eric L G Hazelton, Karin M Kettenring, Carla Lambertini, Melissa K McCormick, Laura A Meyerson, Thomas J Mozdzer, Petr Pyšek, Brian K Sorrell, Dennis F Whigham, Hans Brix
Phragmites australis is a cosmopolitan grass and often the dominant species in the ecosystems it inhabits. Due to high intraspecific diversity and phenotypic plasticity, P. australis has an extensive ecological amplitude and a great capacity to acclimate to adverse environmental conditions; it can therefore offer valuable insights into plant responses to global change. Here we review the ecology and ecophysiology of prominent P. australis lineages and their responses to multiple forms of global change. Key findings of our review are that: (1) P...
2017: Frontiers in Plant Science
Jacob Nabe-Nielsen, Signe Normand, Francis K C Hui, Lærke Stewart, Christian Bay, Louise I Nabe-Nielsen, Niels Martin Schmidt
Arctic plant communities are altered by climate changes. The magnitude of these alterations depends on whether species distributions are determined by macroclimatic conditions, by factors related to local topography, or by biotic interactions. Our current understanding of the relative importance of these conditions is limited due to the scarcity of studies, especially in the High Arctic. We investigated variations in vascular plant community composition and species richness based on 288 plots distributed on three sites along a coast-inland gradient in Northeast Greenland using a stratified random design...
December 2017: Ecology and Evolution
Kohei Takenaka Takano, Kenshi Hibino, Ayaka Numata, Michio Oguro, Masahiro Aiba, Hideo Shiogama, Izuru Takayabu, Tohru Nakashizuka
Rapid expansion of exotic bamboos has lowered species diversity in Japan's ecosystems by hampering native plant growth. The invasive potential of bamboo, facilitated by global warming, may also affect other countries with developing bamboo industries. We examined past (1975-1980) and recent (2012) distributions of major exotic bamboos (Phyllostachys edulis and P. bambusoides) in areas adjacent to 145 weather stations in central and northern Japan. Bamboo stands have been established at 17 sites along the latitudinal and altitudinal distributional limit during the last three decades...
December 2017: Ecology and Evolution
Qionghui Fei, Jingjing Li, Yunhe Luo, Kun Ma, Bingtao Niu, Changjun Mu, Huanhuan Gao, Xiaofeng Li
Environmental temperatures affect plant distribution, growth, and development. The Intergovernmental Panel on Climate Change (IPCC) predicts that global temperatures will rise by at least 1.5°C by the end of this century. Global temperature changes have already had a discernable impact on agriculture, phenology, and ecosystems. At the molecular level, extensive literature exists on the mechanism controlling plant responses to high temperature stress. However, few studies have focused on the molecular mechanisms behind plant responses to mild increases in ambient temperature...
December 11, 2017: Plant Signaling & Behavior
Daijun Liu, Josep Peñuelas, Romà Ogaya, Marc Estiarte, Katja Tielbörger, Fabian Slowik, Xiaohong Yang, Mark C Bilton
Global warming and reduced precipitation may trigger large-scale species losses and vegetation shifts in ecosystems around the world. However, currently lacking are practical ways to quantify the sensitivity of species and community composition to these often-confounded climatic forces. Here we conducted long-term (16 yr) nocturnal-warming (+0.6°C) and reduced precipitation (-20% soil moisture) experiments in a Mediterranean shrubland. Climatic niche groups (CNGs) - species ranked or classified by similar temperature or precipitation distributions - informatively described community responses under experimental manipulations...
December 4, 2017: New Phytologist
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