35 results match your criteria slow phenological

Phenological and elevational shifts of plants, animals and fungi under climate change in the European Alps.

Biol Rev Camb Philos Soc 2021 Apr 27. Epub 2021 Apr 27.

UMR CNRS 7058 « Ecologie et Dynamique des Systèmes Anthropisés » (EDYSAN), Université de Picardie Jules Verne, 1 Rue des Louvels, 80000, Amiens, France.

Mountain areas are biodiversity hotspots and provide a multitude of ecosystem services of irreplaceable socio-economic value. In the European Alps, air temperature has increased at a rate of about 0.36°C decade since 1970, leading to glacier retreat and significant snowpack reduction. Read More

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Photoperiod decelerates the advance of spring phenology of six deciduous tree species under climate warming.

Glob Chang Biol 2021 Mar 2. Epub 2021 Mar 2.

NASA Goddard Space Flight Center, Greenbelt, MD, USA.

Vegetation phenology in spring has substantially advanced under climate warming, consequently shifting the seasonality of ecosystem process and altering biosphere-atmosphere feedbacks. However, whether and to what extent photoperiod (i.e. Read More

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Seasonal dynamics of non-structural carbon pools and their relationship to growth in two boreal conifer tree species.

Tree Physiol 2021 Feb 8. Epub 2021 Feb 8.

Department of Renewable Resources, University of Alberta, Edmonton, Canada.

In an attempt to comprehensively study the dynamics of non-structural carbon compounds (NCC), we measured the seasonal changes of soluble sugars, starch, lipids, and sugar alcohols in the leaves, branches, stem, and roots of the fast-growing Pinus contorta (pine) and slow-growing Picea glauca (spruce) trees growing in a boreal climate. In addition to measuring seasonal concentrations of these compounds, the relative contribution of these compounds to the total NCC pool within organs of trees (~8 m tall) was estimated and compared across different phenological and growth stages. Both species showed large seasonal shifts from starch to sugars from spring to fall in nearly all organs and tissues; most likely an adaptation to the cold winters. Read More

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February 2021

Holm oak death is accelerated but not sudden and expresses drought legacies.

Sci Total Environ 2021 Feb 21;754:141793. Epub 2020 Aug 21.

CICYTEX-ICMC, Polígono Industrial El Prado, c/ Pamplona 64, 06800 Mérida, Badajoz, Spain.

The increase in abiotic and biotic stress driven by global change threatens forest ecosystems and challenges understanding of mechanisms producing mortality. Phytophthora spp. like P. Read More

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February 2021

Interactions of Spring Cereal Genotypic Attributes and Recovery of Grain Yield After Defoliation.

Front Plant Sci 2020 5;11:607. Epub 2020 Jun 5.

CSIRO Agriculture and Food, Toowoomba, QLD, Australia.

Dual-purpose crops are grazed during their vegetative phase and allowed to regrow to produce grain. Grazing slow-developing winter cereals (wheat, barley, and triticale) is common, but there is also potential to graze faster-developing spring cereals used in regions with shorter-growing seasons. Defoliation in faster-developing genotypes has risks of larger yield penalties, however, little is known about genotypic characteristics that may improve recovery after grazing. Read More

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Foliar Application of an Amino Acid-Enriched Urea Fertilizer on 'Greco' Grapevines at Full Veraison Increases Berry Yeast-Assimilable Nitrogen Content.

Plants (Basel) 2020 May 13;9(5). Epub 2020 May 13.

Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy.

Reaching a sufficient yeast assimilable nitrogen (YAN) content in berries at harvest is considered a main viticultural goal for wine-making, because low YANs can slow down must fermentation and have negative effects on wine sensory attributes. For this reason, many attempts have been made to define correct fertilization strategies to stimulate YAN accumulation in the berries. Foliar application of amino acid-enriched urea fertilizer is considered a promising environmentally friendly strategy for improving the yield and nutrient efficiency of plants. Read More

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Interactive climate factors restrict future increases in spring productivity of temperate and boreal trees.

Glob Chang Biol 2020 07 29;26(7):4042-4055. Epub 2020 Apr 29.

Institute of Integrative Biology, ETH Zurich (Swiss Federal Institute of Technology), Zurich, Switzerland.

Climate warming is currently advancing spring leaf-out of temperate and boreal trees, enhancing net primary productivity (NPP) of forests. However, it remains unclear whether this trend will continue, preventing for accurate projections of ecosystem functioning and climate feedbacks. Several ecophysiological mechanisms have been proposed to regulate the timing of leaf emergence in response to changing environmental cues, but the relative importance of those mechanisms remains unclear. Read More

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High throughput procedure utilising chlorophyll fluorescence imaging to phenotype dynamic photosynthesis and photoprotection in leaves under controlled gaseous conditions.

Plant Methods 2019 18;15:109. Epub 2019 Sep 18.

1Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire LE12 5RD UK.

Background: As yields of major crops such as wheat () have begun to plateau in recent years, there is growing pressure to efficiently phenotype large populations for traits associated with genetic advancement in yield. Photosynthesis encompasses a range of steady state and dynamic traits that are key targets for raising Radiation Use Efficiency (RUE), biomass production and grain yield in crops. Traditional methodologies to assess the full range of responses of photosynthesis, such a leaf gas exchange, are slow and limited to one leaf (or part of a leaf) per instrument. Read More

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September 2019

Detection and prediction of land use/land cover change using spatiotemporal data fusion and the Cellular Automata-Markov model.

Environ Monit Assess 2019 Jan 14;191(2):68. Epub 2019 Jan 14.

School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, Hubei, China.

The detection and prediction of land use/land cover (LULC) change is crucial for guiding land resource management, planning, and sustainable development. In the view of seasonal rhythm and phenological effect, detection and prediction would benefit greatly from LULC maps of the same seasons for different years. However, due to frequent cloudiness contamination, it is difficult to obtain same-season LULC maps when using existing remote sensing images. Read More

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January 2019

Phenological mismatch drives selection on elevation, but not on slope, of breeding time plasticity in a wild songbird.

Evolution 2019 02 21;73(2):175-187. Epub 2018 Dec 21.

Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700, AB Wageningen, The Netherlands.

Phenotypic plasticity is an important mechanism for populations to respond to fluctuating environments, yet may be insufficient to adapt to a directionally changing environment. To study whether plasticity can evolve under current climate change, we quantified selection and genetic variation in both the elevation (RN ) and slope (RN ) of the breeding time reaction norm in a long-term (1973-2016) study population of great tits (Parus major). The optimal RN (the caterpillar biomass peak date regressed against the temperature used as cue by great tits) changed over time, whereas the optimal RN did not. Read More

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February 2019

Thermal pace-of-life strategies improve phenological predictions in ectotherms.

Sci Rep 2018 10 26;8(1):15891. Epub 2018 Oct 26.

Institut de Recherche pour le Développement, Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175, CNRS, Université de Montpellier, Université Paul Valéry, Montpellier, EPHE, IRD, Montpellier, France.

Phenological variability among populations is widespread in nature. A few predictive phenological models integrate intrapopulational variability, but none has ever explored the individual strategies potentially occurring within a population. The "pace-of-life" syndrome accounts for such individual strategies, but has yet to be explored under a phenological context. Read More

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October 2018

Phenological calendar in some walnut genotypes grown in Romania and its correlations with air temperature.

Int J Biometeorol 2018 Nov 12;62(11):2007-2013. Epub 2018 Sep 12.

Horticulture Faculty, Doctoral School of Plant and Animal Resources Engineering, University of Craiova, Craiova, Romania.

Phenology is the study of periodic biological events in the plant world that are influenced by the environment. Temperature increase in spring season can advance the spring phases, but warming in autumn and winter may slow the fulfillment of chilling requirements and lead to later onset of spring events. This study examined different genotypes of walnut trees under environmental conditions, and measured the cold demand, heat requirements, and average time from budburst till flowering for 28 walnut genotypes. Read More

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November 2018

Latitudinal variation in responses of a forest herbivore and its egg parasitoids to experimental warming.

Oecologia 2018 03 28;186(3):869-881. Epub 2017 Dec 28.

Department of Computer Science, The George Washington University, Washington, DC, 20052, USA.

Disrupted biotic interactions are a predicted consequence of anthropogenic climate change when interactants differ in the magnitude or direction of phenological responses. Here, we examined the responses to artificial warming of northern, southern and central populations of the eastern tent caterpillar and its hymenopteran egg parasitoids. We subjected egg masses from each region to the typical conditions they experience in their source locality or to a warmer temperature regime, to quantify the effects of simulated warming on their relative phenology, survival and neonate starvation endurance. Read More

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Multi-Spectral Imaging from an Unmanned Aerial Vehicle Enables the Assessment of Seasonal Leaf Area Dynamics of Sorghum Breeding Lines.

Front Plant Sci 2017 8;8:1532. Epub 2017 Sep 8.

CSIRO Agriculture and FoodSt. Lucia, QLD, Australia.

Genetic improvement in sorghum breeding programs requires the assessment of adaptation traits in small-plot breeding trials across multiple environments. Many of these phenotypic assessments are made by manual measurement or visual scoring, both of which are time consuming and expensive. This limits trial size and the potential for genetic gain. Read More

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September 2017

Filtering effect of temporal niche fluctuation and amplitude of environmental variations on the trait-related flowering patterns: lesson from sub-Mediterranean grasslands.

Sci Rep 2017 09 20;7(1):12034. Epub 2017 Sep 20.

School of Biosciences and Veterinary Medicine, University of Camerino, Via Pontoni 5, 62032, Camerino, Italy.

Timing of flowering is a critical component of community assembly, but how plant traits respond to heterogeneity of resources has been identified mostly through observations of spatial variations. Thus, we performed a trait-based phenological study in sub-Mediterranean grasslands to assess the importance of temporal variation of resources in the species assemblage processes. We found that early flowering species have traits allowing for slow resource acquisition and storage but rapid growth rate. Read More

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September 2017

Searching for Biotic Multipliers of Climate Change.

Integr Comp Biol 2017 07;57(1):134-147

Peabody Museum, Yale School of Forestry & Environmental Studies, Yale University, 195 Prospect St., New Haven, CT 06511, USA.

Synopsis: As climates change, biologists need to prioritize which species to understand, predict, and protect. One way is to identify key species that are both sensitive to climate change and that disproportionately affect communities and ecosystems. These "biotic multipliers" provide efficient targets for research and conservation. Read More

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Detecting population-environmental interactions with mismatched time series data.

Ecology 2017 Nov 22;98(11):2813-2822. Epub 2017 Aug 22.

Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee, 37830, USA.

Time series analysis is an essential method for decomposing the influences of density and exogenous factors such as weather and climate on population regulation. However, there has been little work focused on understanding how well commonly collected data can reconstruct the effects of environmental factors on population dynamics. We show that, analogous to similar scale issues in spatial data analysis, coarsely sampled temporal data can fail to detect covariate effects when interactions occur on timescales that are fast relative to the survey period. Read More

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November 2017

Impacts of global warming on phenology of spring leaf unfolding remain stable in the long run.

Int J Biometeorol 2017 Feb 28;61(2):287-292. Epub 2016 Jul 28.

Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China.

The impact of spring temperature forcing on the timing of leaf unfolding of plants (temperature sensitivity, S) is one important indicator of how and to what degree plant species track climate change. Fu et al. (Nature 526:104-107, 2015) found that S has significantly decreased from the 1980-1994 to the 1999-2013 period for seven mid-latitude tree species in Europe. Read More

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February 2017

Phenological plasticity will not help all species adapt to climate change.

Glob Chang Biol 2015 Aug 30;21(8):3062-73. Epub 2015 Apr 30.

CEFE UMR 5175, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier, EPHE, 1919 route de Mende, 34293, Montpellier Cedex 05, France.

Concerns are rising about the capacity of species to adapt quickly enough to climate change. In long-lived organisms such as trees, genetic adaptation is slow, and how much phenotypic plasticity can help them cope with climate change remains largely unknown. Here, we assess whether, where and when phenological plasticity is and will be adaptive in three major European tree species. Read More

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Phenology and cover of plant growth forms predict herbivore habitat selection in a high latitude ecosystem.

PLoS One 2014 27;9(6):e100780. Epub 2014 Jun 27.

Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway.

The spatial and temporal distribution of forage quality is among the most central factors affecting herbivore habitat selection. Yet, for high latitude areas, forage quantity has been found to be more important than quality. Studies on large ungulate foraging patterns are faced with methodological challenges in both assessing animal movements at the scale of forage distribution, and in assessing forage quality with relevant metrics. Read More

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October 2015

Progress towards an interdisciplinary science of plant phenology: building predictions across space, time and species diversity.

New Phytol 2014 Mar 18;201(4):1156-62. Epub 2013 Nov 18.

Climate change has brought renewed interest in the study of plant phenology - the timing of life history events. Data on shifting phenologies with warming have accumulated rapidly, yet research has been comparatively slow to explain the diversity of phenological responses observed across latitudes, growing seasons and species. Here, we outline recent efforts to synthesize perspectives on plant phenology across the fields of ecology, climate science and evolution. Read More

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Sexual reproduction of Japanese knotweed (Fallopia japonica s.l.) at its northern distribution limit: new evidence of the effect of climate warming on an invasive species.

Am J Bot 2014 Mar 24;101(3):459-66. Epub 2014 Feb 24.

École supérieure d'aménagement du territoire et de développement régional.

Premise Of The Study: In response to climate warming, plant species may shift their distribution northward, but such a process is slow and hard to detect. Alternatively, phenological changes (earlier flowering) are expected as first adaptations for populations located near their distribution limit. That could be the case for the invasive Japanese knotweed (Fallopia japonica s. Read More

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Differential ecophysiological response of a major Mediterranean pine species across a climatic gradient.

Tree Physiol 2013 Jan 28;33(1):26-36. Epub 2012 Nov 28.

Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot 76100, Israel.

The rate of migration and in situ genetic variation in forest trees may not be sufficient to compete with the current rapid rate of climate change. Ecophysiological adjustments of key traits, however, could complement these processes and allow sustained survival and growth across a wide range of climatic conditions. This was tested in Pinus halepensis Miller by examining seven physiological and phenological parameters in five provenances growing in three common garden plots along a climatic transect from meso-Mediterranean (MM) to thermo-Mediterranean (TM) and semi-arid (SA) climates. Read More

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January 2013

Genomic regions for canopy temperature and their genetic association with stomatal conductance and grain yield in wheat.

Funct Plant Biol 2012 Feb;40(1):14-33

CSIRO Plant Industry, PO Box 1600, Canberra, ACT 2601, Australia.

Stomata are the site of CO2 exchange for water in a leaf. Variation in stomatal control offers promise in genetic improvement of transpiration and photosynthetic rates to improve wheat performance. However, techniques for estimating stomatal conductance (SC) are slow, limiting potential for efficient measurement and genetic modification of this trait. Read More

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February 2012

Multivariate trade-offs, succession, and phenological differentiation in a guild of colonial invertebrates.

Ecology 2010 Nov;91(11):3146-52

Center for Population Biology, University of California, One Shields Avenue, Davis, California 95616, USA.

For competing species limited by one or few resources, diversity is thought to be maintained by trade-offs that allow niche differentiation without resource partitioning. However, few studies have quantified multiple key traits for each species in a guild and shown that trade-offs among these traits apply across the guild. Here we document strong bivariate and multivariate relationships among growth rate, fecundity, longevity, and overgrowth ability for six co-occurring colonial invertebrates. Read More

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November 2010

Winter and spring warming result in delayed spring phenology on the Tibetan Plateau.

Proc Natl Acad Sci U S A 2010 Dec 29;107(51):22151-6. Epub 2010 Nov 29.

Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.

Climate change has caused advances in spring phases of many plant species. Theoretically, however, strong warming in winter could slow the fulfillment of chilling requirements, which may delay spring phenology. This phenomenon should be particularly pronounced in regions that are experiencing rapid temperature increases and are characterized by highly temperature-responsive vegetation. Read More

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December 2010

Contribution of direct and maternal genetic effects to life-history evolution.

New Phytol 2009 Aug 2;183(3):826-838. Epub 2009 Jul 2.

Department of Biology, University of Virginia, Charlottesville, VA 22904-4328, USA.

Maternal effects are ubiquitous in nature. In plants, most work has focused on the effects of maternal environments on offspring trait expression. Less is known about the prevalence of genetic maternal effects and how they influence adaptive evolution. Read More

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Short-term response of the slow growing seagrass Posidonia oceanica to simulated anchor impact.

Mar Environ Res 2007 May 20;63(4):341-9. Epub 2006 Oct 20.

Dipartimento di Botanica ed Ecologia Vegetale, Università di Sassari, via F Muroni 25, 07100 Sassari, Italy.

Experimental evaluations about the impact of anchors of small vessels have previously shown that each anchoring can on average damage up to six shoots of Posidonia oceanica, removing small amount of biomass and, at the same time, interrupting continuity among shoots. The aim of the paper was to investigate the response of P. oceanica to different damage intensity at two levels of substrata compactness. Read More

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Developmental regulation of water uptake in wheat.

J Plant Physiol 2007 Sep 18;164(9):1170-8. Epub 2006 Sep 18.

Department of Agricultural Engineering and Agronomy, University of Naples Federico II, Via Università 100, Portici 80055 (NA), Italy.

The discovery of aquaporins has provided a new basis for studying and interpreting water relations in plants. However, slow progress has been made in elucidating the functional facets of the aquaporin-mediated water pathway in whole plant systems. While increasing experimental evidence suggests that these proteins are directly involved in mediating water homeostasis at varying environmental conditions, only a few attempts have been made to understand their contribution to overall water transport at different developmental stages. Read More

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September 2007

Population characteristics predict responses in moose body mass to temporal variation in the environment.

J Anim Ecol 2006 Sep;75(5):1110-8

Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway.

1. A general problem in population ecology is to predict under which conditions stochastic variation in the environment has the stronger effect on ecological processes. By analysing temporal variation in a fitness-related trait, body mass, in 21 Norwegian moose Alces alces (L. Read More

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September 2006