Results 21 to 30 of about 67,673 (156)

Does the type of silvicultural practice influence spruce budworm defoliation of seedlings?

Ecosphere, 2021
Spruce budworm (Choristoneura fumiferana (Clem)) is the main defoliator in the boreal forest of North America, and its outbreaks have major ecological and economic consequences and represent a challenge for forest management.
Janie Lavoie, Miguel Montoro Girona, Guillaume Grosbois, Hubert Morin   +3 more
doaj   +1 more source

An integrated framework to identify and characterize regional-scale insect dispersal. [PDF]

Ecol Appl
Abstract Forest pest insects cause major socio‐economic impacts, global losses of millions of dollars, and ecosystem changes. A key challenge for their management is tracing regional dispersal events critical to outbreak dynamics. We developed an integrated tracing framework for pest insects by combining isotope geolocation, ecological data, and ...
Dargent F, Reich MS, Miller M, Studens K, Benvidi N, Perrault K, Aibueku J, Holmes B, Bataille CP, Candau JN.   +9 more
europepmc   +2 more sources

Forest Carbon Resilience of Eastern Spruce Budworm (Choristoneura fumiferana) Salvage Harvesting in the Northeastern United States

Frontiers in Forests and Global Change, 2020
The next major eastern spruce budworm (Choristoneura fumiferana) outbreak is likely to begin impacting the forests of the northeastern US over the next few years. More than 4.7 million ha of forest and 94.8 million Mg of carbon in spruce (Picea spp.) and
John S. Gunn, John S. Gunn, Mark J. Ducey, Thomas Buchholz, Thomas Buchholz, Ethan P. Belair   +5 more
doaj   +1 more source

In the Pursuit of Synchrony: Northward Shifts in Western Spruce Budworm Outbreaks in a Warming Environment

Frontiers in Forests and Global Change, 2022
Outbreaks of western spruce budworm (Choristoneura freemani Freeman) in Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] forests of western Canada have shifted northward in recent decades.
Amberly R. Tai, Allan L. Carroll
doaj   +1 more source

Detection of Spruce Budworm with Sentinel-1 Time Series

International audienceCan Sentinel-1 time series enhance the detection and management of spruce budworm outbreaks in forest ...
Mousset, Lauriane, Brigui, Frederic, Koleck, Thierry, Dupuis, Xavier, Thirion, Laetitia, Guinvarc'h, Régis   +5 more
core   +6 more sources

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

Communications 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, Maryse Marchand, Daniel D. Kneeshaw, David Paré, Dominique Boucher, Stéphane Bourassa, David Gervais, Martin Simard, Jacob M. Griffin, Deepa S. Pureswaran   +9 more
doaj   +1 more source

Characterizing eastern spruce budworm’s large-scale dispersal events through flight behavior and stable isotope analyses

Frontiers in Ecology and Evolution, 2023
Eastern spruce budworm moth (Choristoneura fumiferana (Clem.)) mass outbreaks have widespread economic and ecological consequences. A key explanation for the large-scale spread and synchronization of these outbreaks is the long-distance dispersal (up to ...
Felipe Dargent, Felipe Dargent, Jean-Noël Candau, Kala Studens, Kerry H. Perrault, Megan S. Reich, Clement Pierre Bataille, Clement Pierre Bataille   +7 more
doaj   +1 more source

Effects of Spruce Budworm (Choristoneura fumiferana (Clem.)) Outbreaks on Boreal Mixed-Wood Bird Communities

Avian Conservation and Ecology, 2009
This study examined the influence of a spruce budworm (Choristoneura fumiferana (Clem.)) outbreak on a boreal mixed-wood bird community in forest stands ranging in age from 0 to 223 yr.
Lisa A. Venier, Jennie L. Pearce, Don R. Fillman, Don K. McNicol, Dan A. Welsh   +4 more
doaj   +1 more source

Unearthing Forest History: Integrating Soil Charcoal Macrofossils and Pollen Reveals Delayed Forest Responses to Holocene Climatic Transitions in Boreal-Temperate Ecotone. [PDF]

Ecol Evol
This study reconstructs long‐term vegetation dynamics at the boreal–temperate forest ecotone in eastern Canada using soil charcoal, pollen records, and forest inventories. Results reveal a delayed expansion of thermophilous tree species and a late borealization of the landscape in relation to climate change, alongside recent stand‐scale shifts driven ...
Rioux-Couture C, Grondin P, de Lafontaine G.   +2 more
europepmc   +2 more sources

Structural dynamics at boreal forest edges created by a spruce budworm outbreak

Silva Fennica, 2015
Natural disturbances such as insect outbreaks create boundaries that influence vegetation patterns and ecological processes.  To better understand the effects of natural edge creation on relatively intact forests and adjacent disturbed areas, we ...
Franklin, Caroline, Harper, Karen, Murphy, Liam   +2 more
doaj   +1 more source