Filters: Tags: monitoring 1-Changes in Plant and Animal Distribution: Fauna (X)916 results (120ms)
Birds and Mammals of the St. Elias Mountain Parks: Checklist Evidence for a Biogeographic Convergence Zone
The St. Elias region of North America occupies portions of British Columbia, Alaska, and Yukon and consists of a contiguous network of protected areas. Available information on avian and mammalian diversity in each of the region's five major protected areas (Kluane National Park, Wrangell-St. Elias National Park and Preserve, Glacier Bay National Park and Preserve, Tatshenshini-Alsek Provincial Park, and Tetlin National Wildlife Refuge) was integrated to create a species checklist as part of an ongoing effort to create a region-wide ecological database for research and management purposes. Based on the tabulated data, the five protected areas combine to protect a total of 178 species of breeding birds and 51 species...
Trend in the Status of Breeding Bird Fauna in British Columbia, Canada, Based on the IUCN Red List Index Method
Status of breeding bird fauna based on the World Conservation Union (IUCN) Red List Index (RLI) method in British Columbia, Canada, was studied. The use of index to measure the trend in the status of indigenous breeding birds in British Columbia between 1992 and 2006 was examined. Ongoing immigration of bird species in and out of British Columbia added to the complexity of interpreting the regional RLI-type index. Because the RLI was scaled so that maximum value was based on a state in which all species were simultaneously ranked as least concern, it might exaggerate the highest potential status of intrinsically vulnerable species. The results concluded that the RLI approach holds useful innovation for an indicator...
at publisher site.]
Species status reports for selected bird, mammal, fish, invertebrate and reptile species featured in the Alaska Department of Fish and Game’s Comprehensive Wildlife Conservation Strategy
A case of early Wisconsinan “over-chill”: New radiocarbon evidence for early extirpation of western camel (Camelops hesternus) in eastern Beringia
There are comparatively few fossils that document the presence of the Pleistocene western camel (Camelops hesternus) in the unglaciated regions of Alaska and Yukon, northwestern North America (eastern Beringia). It has been previously reported on the basis of stratigraphic and radiocarbon data that this species was present within this region from the Sangamonian interglaciation (Marine Isotope Stage (MIS) 5) through the Last Glacial Maximum (LGM, MIS 2). However, the continued presence of western camel through the LGM is at odds with its ecological preferences as inferred from more southerly parts of the continent. Here we report 43 new radiocarbon dates on 34 western camel fossils from Alaska and Yukon, including...
The fundamental niche of a species is rarely if ever realized because the presence of other species restricts it to a narrower range of ecological conditions. The effects of this narrower range of conditions define how resources are partitioned. Resource partitioning has been inferred but not demonstrated previously for sympatric ursids. We estimated assimilated diet in relation to body condition (body fat and lean and total body mass) and reproduction for sympatric brown bears (Ursus arctos) and American black bears (U. americanus) in south-central Alaska, 1998?2000. Based on isotopic analysis of blood and keratin in claws, salmon (Oncorhynchus spp.) predominated in brown bear diets (>53% annually) whereas black...
Integrated Analysis of Genetic, Stable Isotope, and Banding Data Reveal Migratory Connectivity and Flyways in the Northern Yellow Warbler (Dendroica petechia; Aestiva group)
Harbor porpoise, Phocoena phocoena vomerina, in Cook Inlet, Alaska, are managed as part of the Gulf ofAlaska (GOA) stock. It is not known if this population is distinct from porpoise in the GOA stock found outside Cook Inlet. No long- term dedicated studies of harbor porpoise have occurred in Cook In let. The objective here is to provide a summary of occurrence in Cook Inlet derived from archaeological data, anecdotal reports, and systematic surveys. Maps were created for each dataset. Therefore, each of these estimates is likely biased downward. In the last decade the region has seen expansion of the Port of Anchorage, proposals to build a bridge crossing Knik Arm, plans to develop mining operations and supporting...
Isolation and Identification of Photobacterium phosphoreum from an Unexpected Niche: Migrating Salmon
Fishery Management Report for Sport Fisheries in the Arctic-Yukon- Kuskokwim Management Area, 2000-2001
Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA