Natural Resources Canada

PURPOSE: Determine the time and temperature combinations that result in partial and complete mortality of larvae of the Bronze birch borer DESCRIPTION: The protection of forest resources and the safe trade of forest products require phytosanitary measures which reduce the risk of pest movement to...

Leks are male-biased aggregations formed for mating, where sperm is the only resource acquired by visiting females. One of the many advantages of leks is the possibility to efficiently assess the quality of potential mates by comparing aggregated individuals of the same sex with one another....

In November 2020, the Minister of Natural Resources Canada launched an inclusive engagement process to modernize Canada’s policy for the management of radioactive waste. Natural Resources Canada (NRCan) officials led the six-month engagement process with the support of other federal government...

This database contains the data set described in Andrieux B. et al. (in preparation) about soil organic carbon bioreactivity in Quebec's spruce feathermoss forests. The soil carbon bioreactivity has been evaluated with long-term lab incubations. Carbon density in different soil functional...

This dataset is associated with the article authored by Christine Martineau, Julien Beguin, Armand Séguin and David Paré " Cumulative effects of disturbances on soil nutrients: predominance of antagonistic short-term responses to the salvage logging of insect-killed stands". It comprises 24 plots...

This dataset is linked to a manuscript titled "Enantiospecific response of Ips avulsus to ipsdienol varies depending on semiochemical context" submitted for publication. The dataset contains records of the number of Ips avulsus beetles captured by traps baited with racemic ipsdienol or...

Counts of SBW larvae collected in the fall as L2 or in the following spring as L4, from 75-cm branches or 45-cm branch tips (respectively) of balsam fir in the Ottawa River valley from 1998-2001, North Shore 2008-2010, and New Brunswick 2017-2022. Defoliation measured at the end of the feeding...

Compilation by start date of 7-day exposure periods, of the number of spruce budworm larvae exposed that were recovered and either reared to adult or received a parasitism diagnostic. Data linked to scientific paper: Martel V, Régnière J & Therrien P. (2023) Competition between Tranosema...

Data from a mating-disruption trial against SBW in New Brunswick in 2021

This dataset is associated with the article authored by Louis De Grandpré et al. titled "Defoliation-induced changes in foliage quality may trigger broad-scale insect outbreaks" accepted for publication in Communications Biology. In this study, progression of a spruce budworm outbreak over...

Collection of ground beetles and lepidoptera collected in nine forested sites on the island of Anticosti in 1993.

Colonisation by secondary insects and fungi of trees killed by a hemlock looper outbreak on Anticosti Island in 1973

We measured the foliage area, weight and number of buds on young and mature balsam fir and white spruce trees. With these measurements total amounts of foliage per tree and per unit area of forest land can be calculated. These estimates can be used to determine the absolute numbers of insects...

This dataset is associated with the article authored by Jacques Régnière, Lisa Venier and Dan Welsh entitled "Avian predation in a declining outbreak population of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae)" which will be published in the "Insects" scientific journal....

This database contains the data set described in Andrieux B. et al. (in preparation) about carbon stocks in Quebec's spruce feathermoss forests. Carbon density in different reservoirs of the ecosystem is available at the plot scale (n = 72): living aboveground biomass, coarse woody debris,...

This dataset is associated with the article by Marine Pacé, Nicole J. Fenton, David Paré and Yves Bergeron entitled "Differential effects of feather and Sphagnum spp. mosses on black spruce germination and growth". It includes data of black spruce germination (greenhouse), seedling growth (0 to 6...

In the early 1980’s, thousands of trees were destructively sampled across Canada by the Canadian Forest Service (CFS) as part of the ENergy from the FORest research (ENFOR) program with the objective to produce regional biomass equations for the most common tree species. The sampling was...