Results 1 to 10 of about 19,309 (262)

Phenology as a strategy for carbon optimality: a global model [PDF]

open access: yesBiogeosciences, 2014
Phenology is essential to our understanding of biogeochemical cycles and the climate system. We develop a global mechanistic model of leaf phenology based on the hypothesis that phenology is a strategy for optimal carbon gain at the canopy level so that ...
S. Caldararu, D. W. Purves, P. I. Palmer
doaj   +5 more sources

Phenology forcing model to estimate phenology shifting ability of extreme environmental events

open access: yesFrontiers in Plant Science, 2022
The current study considered the climate extreme index (CEI) values originated from extreme environmental events (EEEs) by following the National Oceanic and Atmospheric Administration (NOAA) guidelines. The EEEs were fractionated into six sub-categories
Aqeel Ahmad   +3 more
doaj   +3 more sources

Improved CASA-Based Net Ecosystem Productivity Estimation in China by Incorporating Developmental Factors into Autumn Phenology Model

open access: yesRemote Sensing
Accurately assessing the carbon sink intensity of China’s ecosystem is crucial for achieving carbon neutrality. However, existing ecosystem process models have significant uncertainties in net ecosystem productivity (NEP) estimates due to the lack of or ...
Shuping Ji   +5 more
doaj   +3 more sources

Different Population Phenologies of Grapholita molesta (Busck) in Two Hosts and Two Nearby Regions in the NE of Spain

open access: yesInsects, 2021
Grapholita molesta is an important pest of stone and pome fruits. In commercial orchards, integrated pest management programs use pheromone traps to monitor the population dynamics of G. molesta and adjust treatments.
Carles Amat   +3 more
doaj   +1 more source

Estimating phenology and phenological shifts with hierarchical modeling

open access: yesEcology, 2023
AbstractClimate‐driven changes to phenology are some of the most prevalent climate change impacts, yet there is no commonly accepted approach to modeling phenological shifts. Here, we present a hierarchical modeling framework for estimating intra‐annual patterns in phenology (e.g., peak phenological expression) and analyzing interannual rates of change
Samantha M. Wilson   +2 more
openaire   +2 more sources

BugTalk: Online Prediction for the Life of Spodoptera Litura (Common Cutworm)

open access: yesIEEE Access, 2022
Due to climate change, Spodoptera litura has the potential to become an increasingly severe pest because of increased habitat suitability. To support precision agriculture, it is essential to accurately predict the life cycle of Spodoptera litura, and ...
Li-Xian Chen   +5 more
doaj   +1 more source

Evaluation of linear and nonlinear models for temperature driven development of Spodoptera litura (Fabricius) on soybean crop

open access: yesJournal of Agrometeorology, 2021
The tobacco caterpillar, Spodoptera litura, a major pest of soybean in India is under surveillance in all soybean growing areas in Maharashtra in order to issue alerts to farmers and prevent economic losses.
Y.G. PRASAD   +6 more
doaj   +1 more source

SIMONTO-Pea: Phenological Models to Predict Crop Growth Stages in BBCH of Grain and Green Peas (Pisum sativum) for Temporal Pest Management

open access: yesAgriculture, 2023
Many pests damage pea crops, which potentially leads to reduced quality and yield losses. Since pests occur at different phenological growth stages of pea crops, the prediction of growth stages, for example as BBCH stages, is beneficial.
Manuela Schieler   +5 more
doaj   +1 more source

Process-oriented models of autumn leaf phenology: ways to sound calibration and implications of uncertain projections [PDF]

open access: yesGeoscientific Model Development, 2023
Autumn leaf phenology marks the end of the growing season, during which trees assimilate atmospheric CO2. The length of the growing season is affected by climate change because autumn phenology responds to climatic conditions.
M. Meier, M. Meier, C. Bigler
doaj   +1 more source

Estimating the Demographic Parameters of Tuta absoluta (Lepidoptera: Gelechiidae) Using Temperature-Dependent Development Models and Their Validation under Fluctuating Temperature

open access: yesBiology, 2022
The tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an invasive pest that devastates the production of tomatoes and other solanaceous vegetables. Since its trans-Atlantic invasion in 2006, T. absoluta has spread and established in
Samira Abuelgasim Mohamed   +3 more
doaj   +1 more source

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