Results 31 to 40 of about 1,410 (214)

The Southern Pine Beetle Dendroctonus frontalis (Coleoptera: Curculionidae: Scolytinae)

open access: yesEDIS, 2022
The southern pine beetle (SPB), Dendroctonus frontalis Zimmermann, has been the most economically important forest insect in the pine timber industry in the southern United States. From 1960 through 1990, the bark beetle caused economic losses estimated
Demian Gomez   +2 more
doaj   +3 more sources

Effects of Bark Beetle Outbreaks on Forest Landscape Pattern in the Southern Rocky Mountains, U.S.A.

open access: yesRemote Sensing, 2021
Since the late 1990s, extensive outbreaks of native bark beetles (Curculionidae: Scolytinae) have affected coniferous forests throughout Europe and North America, driving changes in carbon storage, wildlife habitat, nutrient cycling, and water resource ...
Kyle C. Rodman   +9 more
doaj   +1 more source

Traumatic resin ducts as indicators of bark beetle outbreaks

open access: yesCanadian Journal of Forest Research, 2017
The formation of traumatic resin ducts (TRDs) represents an important induced defense in woody plants that enhances oleoresin production and flow in response to environmental perturbations. In some genera (Pinus), resin ducts are copious and conspicuous; however, in others (Picea), resin ducts are relatively rare.
DeRose, R. J.   +2 more
openaire   +2 more sources

Radar Satellite Imagery for Detecting Bark Beetle Outbreaks in Forests [PDF]

open access: yesCurrent Forestry Reports, 2019
Abstract Purpose of Review The overall objective of this paper is to review the state of knowledge on the application of radar data for detecting bark beetle attacks in forests. Due to the increased availability of high spatial and temporal resolution radar data (e.g.
Markus Hollaus, Mariette Vreugdenhil
openaire   +1 more source

Bark beetle outbreaks affect regional carbon cycle [PDF]

open access: yesEos, Transactions American Geophysical Union, 2012
Bark beetle outbreaks can kill a large number of trees—in fact, insect outbreaks affect an area similar in size to that affected by forest fires annually across North America. Trees absorb carbon dioxide, so bark beetle outbreaks can significantly affect regional carbon dynamics.
openaire   +1 more source

Dynamics of Scots pine health after the release of Thanasimus formicarius in bark beetle foci

open access: yesНаукові праці Лісівничої академії наук України
In Eastern Polissia, a severe decline of Scots pine started in 2015. It was caused by drought and aggravated by outbreaks of Ips acuminatus (Gyllenhal, 1827) followed by Ips sexdentatus (Börner, 1776).
Valentyna Meshkova   +3 more
doaj   +1 more source

Mountain pine beetle outbreak duration and pine mortality depend on direct control effort

open access: yes, 2020
The efficacy of direct control methods in bark beetle outbreaks is a disputed topic. While some studies report that control reduces tree mortality, others see little effect.
Mark A. Lewis, Mélodie Kunegel-Lion
core   +1 more source

Population dynamics of tree-killing bark beetles [PDF]

open access: yes, 2010
During outbreak periods, the European spruce bark beetle and the North American mountain pine beetle are able to kill millions of coniferous trees. Throughout the 20th century, six outbreaks have occurred in Sweden and four in British Columbia, with ...
Kärvemo, Simon
core  

Sanitation felling against the European spruce bark beetle: A matter of intensity and forest type Tagli fitosanitari contro il bostrico tipografo: una questione di intensità e tipologia forestale

open access: yesAgricultural and Forest Entomology, EarlyView.
We assess the effect of sanitation felling performed in 2022 in North‐Eastern Italy on bark beetle damage that occurred in 2023 across eight spruce forest types, as evaluated using multispectral satellite imagery. Bark beetle damage was reduced only at very high or very low sanitation felling rates.
Aurora Bozzini   +5 more
wiley   +1 more source

Aggregation unveiled: A sequential modelling approach to bark beetle outbreaks

open access: yesTheoretical Population Biology
Tree-killing bark beetle infestations are a cause of massive coniferous forest mortality impacting forest ecosystems and the ecosystem services they provide. Models predicting bark beetle outbreaks are crucial for forest management and conservation, necessitating studies of the effect of epidemiological traits on the probability and severity of ...
Salehzadeh, Mahdi   +2 more
openaire   +3 more sources

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