Results 1 to 10 of about 72,771 (216)

Coding and Non-coding RNAs: Molecular Basis of Forest-Insect Outbreaks [PDF]

open access: yesFrontiers in Cell and Developmental Biology, 2020
Insect population dynamics are closely related to ‘human’ ecological and economic environments, and a central focus of research is outbreaks. However, the lack of molecular-based investigations restricts our understanding of the intrinsic mechanisms ...
Sufang Zhang   +5 more
doaj   +2 more sources

A Holocene landscape dynamic multiproxy reconstruction: How do interactions between fire and insect outbreaks shape an ecosystem over long time scales? [PDF]

open access: yesPLoS ONE, 2018
At a multi-millennial scale, various disturbances shape boreal forest stand mosaics and the distribution of species. Despite the importance of such disturbances, there is a lack of studies focused on the long-term dynamics of spruce budworm ...
Lionel Navarro   +4 more
doaj   +2 more sources

Defoliation-induced changes in foliage quality may trigger broad-scale insect outbreaks [PDF]

open access: yesCommunications Biology, 2022
Progression of a spruce budworm outbreak over seven years is associated with increased soil nutrient fluxes and availability and improved foliage quality in surviving host trees. This could create a bottom-up feedback that sustains an insect outbreak.
Louis De Grandpré   +9 more
doaj   +2 more sources

Stability and Optimal Control of Tree-Insect Model under Forest Fire Disturbance

open access: yesMathematics, 2022
In this article, we propose a mathematical model for insect outbreaks coupled with wildfire disturbances and an optimization model for finding suitable wildfire frequencies.
Xiaoxiao Liu, Chunrui Zhang
doaj   +1 more source

High infestation of Cecropia pachystachya (Urticaceae) by the scarab beetle Macrodactylus pumilio Burm., 1855 (Coleoptera: Scarabaeidae)

open access: yesEntomological Communications, 2023
Population outbreaks, although rare, hold significant ecological implications, particularly in short-lived organisms. These outbreaks are often triggered by changes in population control factors such as food availability, absence or reduction of natural ...
Helena Negrao   +2 more
doaj   +1 more source

Pine Forest Management and Disturbance in Northern Poland: Combining High-Resolution 100-Year-Old Paleoecological and Remote Sensing Data

open access: yesFrontiers in Ecology and Evolution, 2021
Global warming has compelled to strengthen the resilience of European forests. Due to repeated droughts and heatwaves, weakened trees become vulnerable to insect outbreaks, pathogen invasions, and strong winds.
Dominika Łuców   +10 more
doaj   +1 more source

Spatial Pattern of Attacks of the Invasive Woodwasp Sirex noctilio, at Landscape and Stand Scales. [PDF]

open access: yesPLoS ONE, 2015
Invasive insect pests are responsible for important damage to native and plantation forests, when population outbreaks occur. Understanding the spatial pattern of attacks by forest pest populations is essential to improve our understanding of insect ...
M Victoria Lantschner, Juan C Corley
doaj   +1 more source

MODIS Time Series Reveal New Maximum Records of Defoliated Area by Ormiscodes amphimone in Deciduous Nothofagus Forests, Southern Chile

open access: yesRemote Sensing, 2023
Outbreaks of the Ormiscodes amphimone moth are among the largest biotic disturbances in South America, defoliating vast areas of native Nothofagus pumilio forests in the Chilean and Argentinian Patagonia in the last decade.
Sergio A. Estay   +5 more
doaj   +1 more source

A Secret Hidden in the Sediments: Lepidoptera Scales

open access: yesFrontiers in Ecology and Evolution, 2018
Natural disturbance is one of the major topics in forest ecology. However, most paleoecological studies have only considered the influence of wildfire as an agent of disturbance, with fire history based primarily on the use of charcoal as a proxy for ...
Miguel Montoro Girona   +3 more
doaj   +1 more source

Biotic stress accelerates formation of climate-relevant aerosols in boreal forests [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
Boreal forests are a major source of climate-relevant biogenic secondary organic aerosols (SOAs) and will be greatly influenced by increasing temperature.
J. Joutsensaari   +13 more
doaj   +1 more source

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