Hotspots of threats affecting the occurrences of species in precarious situations

## Information document concerning the results of threat analysis This document provides additional information to better understand, use, and appreciate the threat data produced as part of the integrated recovery approach. These highlight the sectors where threats have the most significant impacts on the occurrences of the [Quebec Natural Heritage Data Center (CDPNQ)] (https://www.quebec.ca/gouvernement/gouvernement-ouvert/transparence-performance/indicateurs-statistiques/donnees-especes-situation-precaire). # #Quelles data included in the analyses? The analyses target the following 36 wildlife elements (species): * Amphibians: swamp frog, western chorus frog, four-toed salamander, purple salamander (Adirondack and Appalachian pop.), mountain dusky salamander (Appalachian pop.), dusky mountain salamander (Appalachian pop.), northern dusky salamander; * Mammals: pygmy weasel, Cooper's lemming vole, rock vole, northern bat, eastern pygmy bat, eastern pygmy bat, little flying squirrel (pop. from the plains of the Great Lakes), small brown bat, eastern pipistrelle; * Birds: falcon Peregrine anatum/tundrius, tundrius piping plover, melodus piper plover, bald eagle; * Fish: mad cat, copper redhorse, river knight, northern sunfish, sand stinger, gray rock digger, rock digger, rock digger, northern rock digger, northern lamprey, northern lamprey, grass minnow, brass minnow; * Reptiles: northern collared snake, brown snake, northern watersnake, spotted snake, green snake, spiny softshell turtle, wood turtle, geographic turtle, blanding turtle, musky turtle. Other species could be added to the analyses, including floristic species and migratory bird species protected under the Migratory Birds Convention Act, 1994 (S.C. 1994, c. 22). Threats: Threats are activities that, by their location, intensity, or time in which they occur, generate stress (see next section) that affects elements of biodiversity. In total, the available data concern 14 threats: * Dense residential and urban areas; * Dense residential and urban areas; * Open air garbage dumps and storage; * Ski resorts; * Annual agriculture (field crops); * Perennial agriculture; * Perennial agriculture; * Other agriculture; * Other agriculture; * Other agriculture; * Other agriculture; * Other agriculture; * Other agriculture; * Open pit mining; * Open pit mines; * Quarries and sand pits; * Total removal of forest cover; * Partial removal of forest cover; * Artificial regeneration of stands; * Burden of nutrients; * Boating. Stress: Threat-induced stress represents the mechanism by which the threat affects biodiversity. The threats monitored are, with some exceptions, those that induce two types of stress: ecosystem conversion and ecosystem degradation. The following stresses are not considered in these analyses: individual mortality (except for boating), indirect effects on the ecosystem (fragmentation), and life cycle disturbance (disturbance; except for boating). For example, the results presented consider the degradation of the ecosystem linked to sustainable agriculture, but not the mortality of individuals caused by mowing (e.g. in wood turtles or short-eared owls). # #Méthode of impact calculation * The method used to calculate the impact on occurrences is presented in the document Integrated Recovery Approach for Threatened or Vulnerable Species — Development of a New Tool for Conservation Planning; * For the values of grid squares for a given threat, the layer represents a 10 km x 10 km grid in which the threat impact ratings for each occurrence are added together. The color of the grid squares gets darker and darker when the cumulative impact values are higher. # #Quelle is standardized classification used for analysis? The threats analyzed were defined according to the Standardized Classification of Threats Affecting Biodiversity — Definitions for the Quebec Conservation Data Center (CDC) v1.0 published in 2021. # #D 'where does the analysis data come from? The list of data sources used to analyze threats based on the given stress (a threat can be followed by more than one data source when it is responsible for more than one stress) can be downloaded here below.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**