What’s worse, there is no endangered species legislation in B.C., leaving them with a lack of support and protection. only as a vagrant. At last count, there are believed to be about 50,000 of them left in this province. This data is an aggregate of predicted suitable habitat from a wide scale algorithm using elevation, distance inland, forest cover tree height and age as well as two separate regional nesting habitat models. Marbled Murrelet habitat was modelled in TFL 6 using an algorithm developed by L. Kremseter et al. 1997). Marbled Murrelet movements are not well understood either, but the birds carry out partial migrations outside the breeding season. (1999). Marbled Murrelet may also be confused with Kittlitz’s Murrelet, which occurs in B.C. Sadly, the marbled murrelet falls under ‘threatened’ status, a designation given by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). prior to the 1990s. It originally covered only <0.2% of the world’s land surface; today, it is threatened by permanent deforestation and conversion to managed forests. Factors limiting Marbled Murrelet populations in BC are not well understood. The Marbled Murrelet is a secretive bird and little was known about its population size or biology in B.C. Marbled Murrelet Research in Desolation Sound, British Columbia Cindy L. Hull 1 Wildlife Ecology Chair, Department Biological Sciences, Simon Fraser University 8888 University Drive, Burnaby, BC, V5A 1S6, Canada ABSTRACT Research on marbled murrelets (Brachyramphus marmoratus), based primarily at Desolation Sound, British Columbia, was started in 1991. index, marbled murrelet, target species. More than 50% of this rain forest worldwide has already been degraded (Bryant et al. (BC Species and Ecosystems Explorer 2003). Marbled Murrelets have a protracted breeding period, with the individuals of a population not all breeding at the same time. The age at which they begin breeding is unknown but it is assumed to be about two years. The primary coastal temperate rain forest is a unique and rare ecosystem. Marbled Murrelet Nesting Habitat Suitability Model for the British Columbia Coast. Demographic models indicate that population size is most sensitive to adult survival, followed by survival of immature birds, and fecundity or nesting success (reviewed in Burger 2002). Since the publication of the 1994 Marbled Murrelet Recovery Plan there has been considerable effort directed towards Marbled Murrelet research in British Columbia. Marbled murrelets are also designated as requiring special management attention under the Forest and Range Practices Act and are considered Identified Wildlife. It is quite different from Marbled Murrelet in all plumages, particularly in non-breeding plumage, but caution should nonetheless be taken when confronted with a potential Kittlitz’s Murrelet in B.C.
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