Item 4 Wildlife and Wildlife Habitat Baseline Report
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The Calgary Airport Authority Parallel Runway Project Volume V – Item 4 Wildlife and Wildlife Habitat Baseline Report Environment The Calgary Airport Authority Parallel Runway Project Volume V – Item 4 Wildlife and Wildlife Habitat Baseline Report Prepared by: AECOM 2540 Kensington Road NW 403 270 9200 tel Calgary, AB, Canada T2N 3S3 403 270 0399 fax www.aecom.com Project Number: 60114017 Date: June 2010 AECOM 2540 Kensington Road NW 403 270 9200 tel Calgary, AB, Canada T2N 3S3 403 270 0399 fax www.aecom.com April 27, 2010 Project Number: 60114017 Peter Rudolf Director Airfield Development Calgary Airport Authority 2000 Airport Road N.E. Calgary, AB T2E 6WS Dear Peter: Re: Baseline Study – Wildlife and Wildlife Habitat Comprehensive Study Environmental Assessment Parallel Runway Project 16L-34R - Runway Development Program This report presents the results of the baseline study for Wildlife and Wildlife Habitat conducted by AECOM Canada Ltd. for the Parallel Runway Project 16L-34R and connecting taxiways to be constructed at the Calgary International Airport in Alberta. The report is part of the Comprehensive Study – Environmental Assessment and forms part of Volume V of that study. If you have any questions concerning this report, please contact the undersigned at (403) 717-3498. Sincerely, AECOM Canada Ltd. Barry Hawkins Project Manager [email protected] TJ: Encl. cc: File AECOM The Calgary Airport Authority Volume V – Supporting Information to Volume III Item 4 – Wildlife and Wildlife Habitat Baseline Report Acronyms Abbreviation Full text the Authority Calgary Airport Authority ASRD Alberta Sustainable Resource Development CEAA Canadian Environmental Assessment Act COSEWIC Committee on the Status of Endangered Wildlife in Canada CS Comprehensive Study EA Environmental Assessment LSA Local Study Area PRP Parallel Runway Project RSA Regional Study Area SARA Species at Risk Act YYC Calgary International Airport Symbol Unit of measure ft Feet ha Hectares m Metres AECOM The Calgary Airport Authority Volume V – Supporting Information to Volume III Item 4 – Wildlife and Wildlife Habitat Baseline Report Executive Summary Wildlife conservation is an important consideration that is frequently incorporated into large infrastructure projects at the design and construction stage. To undertake an effective wildlife conservation program, it is important to have a thorough understanding of the existing wildlife habitat and species in the area that a development site is proposed for. The objectives of preparing a wildlife and wildlife habitat baseline report and conducting wildlife surveys to support its findings is to develop an understanding of the existing wildlife and habitat features that are present in the Local and Regional Study Areas prior to the development of the Parallel Runway Project. This information base was then used to assist in focusing the assessment component of the Comprehensive Study that was conducted to enable predictions of the effects that the development of the PRP were likely to have on these resources. The baseline information collected pertaining to wildlife and wildlife habitat in the study area will also be used to select and identify the valued components selected to be representative of these resources. The valued components will then be used to assist in focusing an assessment of the effects of the Parallel Runway Project on wildlife and wildlife habitat. Observations of wildlife from surveys conducted in the Local Study Area as part of the baseline data collection yielded sightings of 37 bird, 11 mammal, and one amphibian species. Five of the species observed as being present in the study area during these surveys were the American badger (Taxidea taxus), bald eagle (Haliaeetus leucocephalus), lesser scaup (Aythya affinis), Swainson’s hawk (Buteo swainsoni), and sora (Porzana carolina), and are listed provincially as Sensitive. The long-tailed weasel (Mustela frenata) was documented during a winter tracking survey of the Local Study Area. This wildlife species is listed provincially as May Be At Risk. A large number of migratory birds were observed during surveys to be either nesting or roosting within the Local Study Area. The species observed and their habitat is protected by Federal migratory statutes. In total, 37 species of the migratory birds observed within the Local Study Area were seen to be nesting. The Local Study Area provided habitat features that supported critical life cycle requirements for the observed species including the nesting resources that are available and found in the wetlands and aspen stands of the area. Small mammals including a few species that are federally or provincially listed were observed in the vicinity of the airport. As part of the development of the baseline report, consideration was given to noting and recording the abundance of small mammals in the region since they are considered a critical food resource to local predators. As a result, the baseline wildlife survey included an assessment of the numbers and types of small mammal species present. Three species of small mammal were trapped during these trap and release surveys. However, based on the low percentage of recaptures, an abundant population of these three mammalian species is present within the Local Study Area. This further suggests that they would be able to sustain the predators known to occur within the region. No provincially or federally listed and/or threatened species of small mammal were observed or collected during the baseline surveys competed for the Parallel Runway Project. The removal and fragmentation of natural vegetation to accommodate agricultural and urban development purposes has resulted in a reduction of wildlife habitat, the diversity of habitat and wildlife utilization within both the Regional Study Area and Local Study Area. The majority of the lands proposed for the development of the Parallel Runway Project have already been disturbed from their natural ecological state. As a result, the amount of and quality of wildlife habitat available within the Local Study Area is minimal and lacking in diversity. Existing wildlife habitat that remains in the Parallel Runway AECOM The Calgary Airport Authority Volume V – Supporting Information to Volume III Item 4 – Wildlife and Wildlife Habitat Baseline Report Project area consists of aspen tree lines, willow shrub, agricultural cropland, pasture, wetlands, irrigation ditches, and drainage canals. Those remaining naturally occurring habitats within the Local Study Area, such as the wetlands and remnant patches of aspen stands in the north and south fields, are the most beneficial to and productive in terms of wildlife use. Alternative wildlife habitat that is capable of supporting most of the wildlife species that were documented or observed in the Parallel Runway Project area during baseline evaluations is available outside the Local and Regional Study Areas. The three natural areas that are present in the vicinity of the Parallel Runway Project provide a diversity of habitat types and movement corridors for wildlife in the Regional Study Area and Local Study Area. These wetland habitat types are also poorly represented on a regional scale. Some provincially listed wildlife species are dependent on these types of habitat for their successful reproduction and survival. Disturbance of these habitats or of listed species associated with them are a concern for the development of the Parallel Runway Project. Efforts during the design and construction phases of the project will be made to mitigate adverse effects on these wildlife resources. AECOM The Calgary Airport Authority Volume V – Supporting Information to Volume III Item 4 – Wildlife and Wildlife Habitat Baseline Report Table of Contents Acronyms Executive Summary page 1. Introduction ..................................................................................................................... 1 1.1 Local Study Area (LSA) ...................................................................................................... 2 1.2 Regional Study Area (RSA) ................................................................................................ 2 1.3 Objectives ........................................................................................................................... 5 2. Methodology .................................................................................................................... 5 2.1 LSA Methods ....................................................................................................................... 5 2.1.1 Desktop Review ..................................................................................................... 5 2.1.2 Field Assessments ................................................................................................. 5 2.1.2.1 Snow Tracking Surveys ............................................................................ 6 2.1.2.2 Breeding Bird Surveys .............................................................................. 6 2.1.2.3 Northern Leopard Frog Surveys ............................................................... 8 2.1.2.4 Small Mammal Trapping Surveys ............................................................. 8 2.2 RSA Methods ...................................................................................................................... 9 2.2.1 Desktop Review ....................................................................................................