00000nam 2200000za 4500 9.858276 CaOODSP 20241203113643 cr ||||||||||| 180628s2002 nfcab||#o f000 0 eng d print edition 066231803X CaOODSP eng eng fre n-cn-nf CW69-5/380E-PDF CW69-5/380E Robertson, Gregory J. (Gregory James), 1970- Breeding population estimates for three Leach's Storm-petrel colones [sic] in southeastern Newfoundland, 2001 [electronic resource] / Gregory J. Robertson, Janet Russell and David Fifield. Breeding population estimates for three Leach's Storm-petrel colonies in southeastern Newfoundland, 2001 [Mount Pearl, N.L.] : Canadian Wildlife Service, Atlantic Region, 2002. iii, 21 p. : ill., maps Canadian Wildlife Service technical report series ; no. 380 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (p. 4-5). "Breeding populations of three major Leach's Storm-petrel (Oceanodroma leucorhoa) colonies in southeastern Newfoundland were surveyed in the summer of 2001. As area of occupied habitat was not well known on these islands, island-wide grids were established to determine the extent of petrel breeding habitat, and occupied burrow densities were assessed by grubbing.... The population on Gull Island and Green Island did not show signs of changing, while the Middle Lawn Island population has decreased by 47% since this last survey in 1981. Declines in petrel and Manx Shearwater (Puffinus puffinus) populations on Middle Lawn Island, suggest a local impact on breeding procellariiformes on this island. The establishment of a Iarge gull colony on nearby Offer Lawn Island may be affecting breeding tubenoses on Middle Lawn Island"--Summary, p. iii. Includes summary in French. gccst Ecosystems gccst Aquatic birds gccst Migratory birds Russell, Janet. Fifield, David A. Canada. Environment Canada. Canadian Wildlife Service. Atlantic Region. Technical report series (Canadian Wildlife Service) no. 380 (CaOODSP)9.504438 PDF 953 KB https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-380-eng.pdf