Results 31 to 40 of about 382 (145)

Was black spruce a good host of the spruce budworm in warmer periods of the Holocene? a long-term reconstruction

Frontiers in Ecology and Evolution
Understanding the historical variability in the disturbance dynamics of the most important defoliator in eastern Canada, the spruce budworm (SBW), throughout its range will be paramount in anticipating potential changes associated with current climate ...
Hugues Terreaux de Félice, Marc-Antoine Leclerc, Hubert Morin   +2 more
doaj   +1 more source

Anthropogenic disturbance and trophic interactions mediate population viability of American martens

The Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
We present a simulation model of the probability of collapse to <10% of carrying capacity for American marten populations over a 50‐year time frame in relation to forest disturbance due to commercial harvesting and fur‐trapping levels. Probability of collapse differed between models that assumed no effect of logging (solid line), martens living in a ...
John M. Fryxell, Cheryl A. Johnson, Philip A. Wiebe, James A. Baker, Ian D. Thompson   +4 more
wiley   +1 more source

Meteorological versus spatial drivers of the spatial synchrony of forest insect pest outbreaks in North America

Oikos, Volume 2026, Issue 5, May 2026.
Spatial synchrony of population fluctuations has major consequences for the impacts of forest insect pest outbreaks at regional scales. We tested the predictions that the strength and drivers of this synchrony would differ among species according to their dispersal abilities and feeding guilds.
Kyle J. Haynes, Deepa S. Pureswaran, Andrew J. Allstadt, Jonathan A. Walter, Ian DeMerchant, Andrew M. Liebhold   +5 more
wiley   +1 more source

An integrated framework to identify and characterize regional‐scale insect dispersal

Ecological Applications, Volume 36, Issue 3, April 2026.
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 ...
Felipe Dargent, Megan S. Reich, Marrissa Miller, Kala Studens, Nilofar Benvidi, Kerry Perrault, Joshua Aibueku, Brent Holmes, Clement P. Bataille, Jean‐Noël Candau   +9 more
wiley   +1 more source

Holocene reconstruction of the spruce budworm outbreak-fire interaction in the mixed boreal forest reveals a peculiar oscillation

Frontiers in Ecology and Evolution
Characterizing millennial and multi-millennial variability in disturbance regimes will be crucial in improving knowledge within the context of a changing climate and the development of sustainable forest management practices in the eastern Canadian mixed
Marc-Antoine Leclerc, Martin Simard, Hubert Morin   +2 more
doaj   +1 more source

Evidence of negative density‐dependent dispersal in an invasive forest pest

Ecosphere, Volume 17, Issue 4, April 2026.
Abstract Understanding the mountain pine beetle's dispersal patterns is critical for evaluating its threat to Canada's boreal forests. It is generally believed that higher beetle densities lead to increased long‐distance dispersal. One possible explanation is that beetle aggregation pheromones become repellent at high concentrations, causing beetles to
Evan C. Johnson, Mark A. Lewis
wiley   +1 more source

Table_1_Forest Carbon Resilience of Eastern Spruce Budworm (Choristoneura fumiferana) Salvage Harvesting in the Northeastern United States.DOCX

, 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
Thomas Buchholz (3445835), John S. Gunn (6830501), Mark J. Ducey (8460570), Ethan P. Belair (8460573)   +3 more
core   +1 more source

Pairing Spruce Budworm Control and Minimal Understory Perturbations: Effects of Btk Spraying Frequency in Boreal Forests

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Spruce budworm epidemic induces tree mortality and modifies understory communities. Could aerial spraying of Btk reduce perturbations in understory communities? Biannual Btk spraying could prevent both wood loss and understory degradation. ABSTRACT Since 1985, more than 10 million hectares of Canadian forests have been treated against spruce budworm ...
Mathilde Robitaille, David Pothier, Stéphanie Pellerin   +2 more
wiley   +1 more source

The Gut Microbiome of the Eastern Spruce Budworm Does Not Influence Larval Growth or Survival

, 2018
Microbial communities have been shown to play an important role for host health in mammals, especially humans. It is thought that microbes could play an equally important role in other animal hosts such as insects.
Melbert T. Schwarz, Steven W. Kembel, Daniel Kneeshaw   +2 more
core   +1 more source

Climate Change Has Already Reshaped North American Forest Pest Dynamics: Insights From Multidecadal Process‐Based Modelling

Global Change Biology Communications, Volume 1, Issue 1, March 2026.
Climate change has rapidly expanded and shifted suitable climate conditions for eight major forest pests across North America, especially toward northern and higher elevation areas. Host exposure and overlap among pests are increasing, raising ecological and economic risks, and signaling accelerating future impacts under continued warming.
Yan Boulanger, Chris J. K. MacQuarrie, Véronique Martel, Jacques Régnière, Rémi Saint‐Amant, Kishan Sambaraju   +5 more
wiley   +1 more source