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Pervasive glacier retreats across Svalbard from 1985 to 2023.
Nat Commun
January 2025
Chair of Data Science in Earth Observation, Department of Aerospace and Geodesy, Technical University of Munich, Munich, Germany.
A major uncertainty in predicting the behaviour of marine-terminating glaciers is ice dynamics driven by non-linear calving front retreat, which is poorly understood and modelled. Using 124919 calving front positions for 149 marine-terminating glaciers in Svalbard from 1985 to 2023, generated with deep learning, we identify pervasive calving front retreats for non-surging glaciers over the past 38 years. We observe widespread seasonal cycles in calving front position for over half of the glaciers.
View Article and Find Full Text PDFLegacies from early-season hot drought: how growth cessation alters tree water dynamics and modifies stress responses in Scots pine.
Plant Biol (Stuttg)
January 2025
Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Campus de Bellaterra (UAB) Edifici C, Cerdanyola del Vallès, Spain.
Tree responses to drought are well studied, but the interacting effects of drought timing on growth, water use, and stress legacy are less understood. We investigated how a widespread conifer, Scots pine, responded to hot droughts early or late in the growing season, or to both. We measured sap flux, stem growth, needle elongation, and leaf water potential (Ψ) to assess the impacts of stress timing on drought resilience in Scots pine saplings.
View Article and Find Full Text PDFLong-term monitoring data on (Newman, 1838) (Coleoptera, Rutelidae) across the Azorean Islands.
Biodivers Data J
December 2024
University of the Azores, Biotechnology Centre of Azores (CBA), Faculty of Sciences and Technology, PT-9500-321, Ponta Delgada, Azores, Portugal University of the Azores, Biotechnology Centre of Azores (CBA), Faculty of Sciences and Technology, PT-9500-321 Ponta Delgada, Azores Portugal.
Background: The Japanese Beetle, Newman, 1838 (Coleoptera, Rutelidae), is a univoltine agricultural pest that poses a serious threat to various agricultural crops. For more than 16 years, the Azorean official authorities have implemented a Long-Term Ecological Research (LTER) programme that is crucial for understanding the dynamics of insect pests, such as the Japanese Beetle, and their impacts on agricultural ecosystems. The significance of this long-term monitoring extends beyond understanding the pest's life cycle.
View Article and Find Full Text PDFAwakening not associated with an increased rate of cortisol secretion.
Proc Biol Sci
January 2025
Laboratory for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol BS1 3NY, UK.
Cortisol is released upon activation of the hypothalamic-pituitary-adrenal axis, varies across the day, possesses an underlying diurnal rhythm and is responsive to stressors. The endogenous circadian peak of cortisol occurs in the morning, and increases in cortisol observed post-awakening have been named the cortisol awakening response (CAR) based on the belief that the act of waking up stimulates cortisol secretion. However, objective evidence that awakening induces cortisol secretion is limited.
View Article and Find Full Text PDFCircadian rhythms of microbial communities and their role in regulating nitrogen and phosphorus cycling in the rhizosphere of tea plants.
Hortic Res
January 2025
College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
The circadian clock mediates metabolic functions of plants and rhythmically shapes structure and function of microbial communities in the rhizosphere. However, it is unclear how the circadian rhythm of plant hosts regulates changes in rhizosphere bacterial and fungal communities and nutrient cycles. In the present study, we measured diel changes in the rhizosphere of bacterial and fungal communities, and in nitrogen (N) and phosphorus (P) cycling in 20-year-old tea plantations.
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