Results 151 to 160 of about 225,313 (340)

Reconciling links between diversity and population stability across global plant communities

New Phytologist, EarlyView.
Summary Maintaining ecological stability is essential for sustaining ecosystem functions and the benefits they provide to society. Ecological theory predicts that plant diversity destabilizes local populations, yet empirical studies report variable effects.
Xiaobin Pan, Yann Hautier, Jan Lepš, Shaopeng Wang, Kathryn E. Barry, Manuele Bazzichetto, Stefano Chelli, Jiří Doležal, Nico Eisenhauer, Franz Essl, Felícia M. Fischer, Oscar Godoy, Daniel Gómez‐García, Lars Götzenberger, Clara Gracia, Anaclara Guido, Lauren M. Hallett, Susan Harrison, Miao He, Andrew Hector, Pubin Hong, Forest Isbell, George A. Kowalchuk, Victor Lecegui, Xiaofei Li, Maowei Liang, Frédérique Louault, Maria Májeková, Rob Marrs, Neha Mohanbabu, Akira S. Mori, Robin J. Pakeman, Alain Paquette, Begoña Peco, Josep Peñuelas, Valério D. Pillar, Marta Rueda, Wolfgang Schmidt, Jules Segrestin, Marta Gaia Sperandii, Enrique Valencia, Vigdis Vandvik, Shengnan Wang, David Ward, Susan Wiser, Ben A. Woodcock, Chong Xu, Truman Young, Fei‐Hai Yu, Liting Zheng, Zhiwei Zhong, Francesco de Bello   +51 more
wiley   +1 more source

Multifractal Detrended Fluctuation Analysis Combined with Allen–Cahn Equation for Image Segmentation

Fractal and Fractional
This study proposes a novel image segmentation method, MF-DFA combined with the Allen–Cahn equation (MF-AC-DFA). By utilizing the Allen–Cahn equation instead of the least squares method employed in traditional MF-DFA for fitting, the accuracy and ...
Minzhen Wang, Yanshan Wang, Renkang Xu, Runqiao Peng, Jian Wang, Junseok Kim   +5 more
doaj   +1 more source

Measuring Growth Spillovers

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT We propose a multilevel econometric model with time‐varying spillover parameters that disentangle within‐country from between‐country growth spillovers. Parameter estimation is carried out by the method of maximum likelihood. The finite‐sample properties of the resulting estimates are validated through a Monte Carlo study.
F. Blasques, P. Gorgi, S. J. Koopman, J. Sampi   +3 more
wiley   +1 more source

Rescaled Range Analysis and Detrended Fluctuation Analysis: Finite Sample Properties and Confidence Intervals [PDF]

We focus on finite sample properties of two mostly used methods of Hurst exponent H estimation—rescaled range analysis (R/S) and detrended fluctuation analysis (DFA).
Ladislav Krištoufek
core   +1 more source

Legacies from early‐season hot drought: how growth cessation alters tree water dynamics and modifies stress responses in Scots pine

Plant Biology, EarlyView.
Early‐season hot drought in Scots pine limits growth and productivity but improves resilience to late‐season drought through reduced water use. Abstract Tree responses to drought are well studied, but the interacting effects of drought timing on growth, water use, and stress legacy are less understood.
N. K. Ruehr, D. Nadal‐Sala
wiley   +1 more source

Positive mixture effects in pine–oak forests during drought are context‐dependent

Plant Biology, EarlyView.
Mixture effects in drought‐stressed pine‐oak forests are context‐dependent, with Gambel oak and ponderosa pine benefiting from their complementarity under semi‐arid conditions. Abstract The increasing severity and frequency of droughts will play a pivotal role in shaping future forest ecosystems worldwide.
G. Schmied, J. Kappen, M. del Río, W. K. Moser, M. J. Gundale, T. Hilmers, D. Ambs, E. Uhl, H. Pretzsch   +8 more
wiley   +1 more source

Detrended fluctuation analysis as a regression framework: Estimating dependence at different scales [PDF]

, 2015
Ladislav Krištoufek
openalex   +1 more source

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

Plant 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, W. Bijker, H. Aghababaei, A. Stein   +3 more
wiley   +1 more source

Analysis of Prospective Super-Symmetry Inherent in the $pp$ Collision Data at $7$ TeV from CMS Collaboration Using Novel Two-Dimensional Multifractal-Detrended Fluctuation Analysis Method with Rectangular Scale [PDF]

, 2020
Susmita Bhaduri, Anirban Bhaduri
openalex   +1 more source

Multifractal detrended fluctuation analysis of temperature in Spain (1960–2019) [PDF]

, 2021
Javier Gómez-Gómez, Rafael Carmona-Cabezas, A. B. Ariza-Villaverde, E. G. Ravé, F. J. Jiménez-Hornero   +4 more
semanticscholar   +1 more source