Results 81 to 90 of about 32,531 (227)

Thresholds of biodiversity and ecosystem function in a forest ecosystem undergoing dieback [PDF]

open access: yes, 2017
Ecological thresholds, which represent points of rapid change in ecological properties, are of major scientific and societal concern. However, very little research has focused on empirically testing the occurrence of thresholds in temperate terrestrial ...
A'Hara, S.W.   +9 more
core   +2 more sources

Dual Polarimetric Radar Vegetation Index for monitoring forest moisture stress using time series of Sentinel‐1 SAR data

open access: yesPlant Biology, EarlyView.
This study demonstrates the potential of the Sentinel‐1 Dual Polarimetric Radar Vegetation Index, combined with climate variables and the Standardized Precipitation–Evapotranspiration Index, to effectively detect and monitor drought‐induced stress in temperate broadleaf deciduous forests.
B. Ranjit   +3 more
wiley   +1 more source

Forecasting Forest Vulnerability to Drought in Pyrenean Silver Fir Forests Showing Dieback

open access: yesFrontiers in Forests and Global Change, 2020
Forest dieback is manifested as widespread loss of tree vigor, growth decline and high mortality rates. Forest dieback is becoming increasingly frequent and extended, particularly in drought-prone regions.
Antonio Gazol   +2 more
doaj   +1 more source

Drought legacy in mature spruce alleviates physiological stress during recurrent drought

open access: yesPlant Biology, EarlyView.
The slow recovery of leaf area in mature spruce following a long‐term drought alleviated physiological stress during recurrent drought. Abstract Forest ecosystems are facing severe and prolonged droughts with delayed recovery, known as “drought legacy”.
K. Hikino   +7 more
wiley   +1 more source

Assessment of Acacia Koa Forest Health across Environmental Gradients in Hawai‘i Using Fine Resolution Remote Sensing and GIS

open access: yesSensors, 2011
Koa (Acacia koa) forests are found across broad environmental gradients in the Hawai‘ian Islands. Previous studies have identified koa forest health problems and dieback at the plot level, but landscape level patterns remain unstudied.
Rodolfo Martinez Morales   +2 more
doaj   +1 more source

Early onset of stomatal closure confounds current interpretations and applications of iso‐/anisohydry theory

open access: yes
New Phytologist, EarlyView.
Matthias Arend   +5 more
wiley   +1 more source

Root water uptake depth in temperate forest trees: species‐specific patterns shaped by neighbourhood and environment

open access: yesPlant Biology, EarlyView.
Root water uptake strategies vary among temperate tree species (European beech, Douglas fir, and Norway spruce), with beech–conifer mixtures altering water uptake depths, while site conditions and temporal dynamics further shape the contribution of different soil depths to water supply.
C. A. Hackmann   +6 more
wiley   +1 more source

Occurrence of Phytophthora citrophthora on Syringa vulgaris in Poland

open access: yesActa Mycologica, 2014
Phytophora citrophora was isolated from dieback shoots, base of diseascd stems and top parts of lilac plants during 3 vegetation periods. The species was detected from about 75% of analysed plant parts.
Leszek B. Orlikowski, Grażyna Szkuta
doaj   +1 more source

The use of mycoviruses in the control of forest diseases [PDF]

open access: yes, 2016
Producción CientíficaFifteen families of mycoviruses have been described and 80% of these catalogued. However, their evolutionary relationship with fungi is not clear.
Díez Casero, Julio Javier   +2 more
core   +1 more source

Recurrent hot droughts cause persistent legacy effects in a temperate Scots Pine forest

open access: yesPlant Biology, EarlyView.
A series of hot drought events caused persistent legacy effects in a Scots Pine forest, with severe negative impacts on ecosystem carbon fluxes. Abstract Recent hot‐dry events have caused significant impacts and legacy effects in temperate ecosystems. Here, we investigate legacy effects of the 2018 hot drought on a Pinus sylvestris L.
S. Haberstroh   +4 more
wiley   +1 more source

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