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Notice of permit
Regional or Local Number: SARA-PYR-2017-0372
Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. SARA-PYR-2017-0372 is issued.
Scientific research for the conservation of the species
As part of surveys for Oregon Forestsnails (Allogona townsendiana) and the biophysical attributes of their critical habitat, this permit authorizes the search, capture, marking, and recapture of ~80 individual Oregon Forestsnails, within an ~8-hectare First Nations reserve in the Lower Fraser Valley, British Columbia. Survey, capture, handling and nail-polish marking methods and associated mitigation measures align with those recommended in the Draft Gastropod Best Management Practices Guidebook (2012). The objective of the project is to collect baseline information on the local Oregon Forestsnail population and habitat, in order to inform the future management of the site, for both residential development and Oregon Forestsnail conservation.
Start Date: 2017-04-15 End Date: 2017-06-30
Issuing Authority: Environment Canada
- Species at Risk Act
Location of Activity (province, territory or ocean):
- British Columbia
a) All reasonable alternatives to the activities that would reduce the impact on the species have been considered and the best solutions have been adopted. Consideration was given to the options of not doing surveys at all and employing different survey methods. On-the-ground surveys are deemed necessary in order to collect information on the local Oregon Forestsnail population and habitat, which is needed to inform the future management of the site, for both residential development and Oregon Forestsnail conservation. Without current information on the size/distribution of the snail population and the locations of the biophysical attributes of critical habitat within the site, it will not be possible to orient development to avoid critical areas. Random sampling and telemetry were also considered as alternatives to the proposed survey methods, but were deemed more intensive/intrusive than is necessary in order to gather the information on population size/distribution and critical biophysical attribute distribution needed to inform site management planning. The proposed methods (wander transects followed by systematic searches and mark-recapture within plots located in suitable patches) align with those described within the provincial Draft Gastropod Best Management Practices Guidebook (2012). These methods were also used previously by this project team in 2014 (SARA-PYR-2014-0262). b) All feasible measures will be taken to minimize the impact of activities on the species. To minimize the impacts to individual Oregon Forestsnails associated with capture/handling, the surveyors will not use lotions, hand sanitizers or soaps; handle only the carapace – not the soft body parts; restrict handling time to the duration required to take measurements and place the unique mark on the carapace; and place each individual back where it was captured. To minimize impacts to residences and the critical biophysical attributes of critical habitat, they will conduct the surveys cautiously and on foot avoiding vegetation trampling and disturbance to soils; and replace any cover (substrate, woody debris, leaf litter, etc.) displaced during the search back in its original location/condition.Surveyors will clean their boots and equipment before entering the site, to avoid introduction of invasive species. The permit holders and assistants all have direct, recent experience surveying for/handling this species and employing the marking/recapture methods being proposed here. The permit holders will be on site to supervise assistants. c) The activities will not jeopardize the survival or recovery of the species. No significant harm/killing of individuals or destruction of residences or critical habitat should result from these surveys. One of the objectives of this survey is to map out the locations of patches (within the broader ‘area within which critical habitat occurs’) that actually possess the critical biophysical attributes, in order to avoid their destruction in the future.
Canadian Wildlife Service
Delta, British Columbia
Phone: (604) 940-4650
Fax: (604) 946-7022
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