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Full-Text Articles in Environmental Studies
A Critical Assessment Of Protection For Key Wildlife And Salmon Habitats Under The Proposed British Columbia Central Coast Land And Resource Management Plan, Paul C. Paquet, Chris T. Darimont, R. John Nelson, Katrina Bennett
A Critical Assessment Of Protection For Key Wildlife And Salmon Habitats Under The Proposed British Columbia Central Coast Land And Resource Management Plan, Paul C. Paquet, Chris T. Darimont, R. John Nelson, Katrina Bennett
Habitat Assessment and Management Collection
The Central Coast Land and Resource Management Plan (CCLRMP) table recently declared a consensus1 on proposed protected areas for British Columbia’s Central Coast. This region is recognized for its globally rare and largely intact mainland and island ecosystems and land use decisions should reflect this importance. We evaluated the efficacy of this proposal using a spatial assessment of habitat. We focus on protected areas in the context of the overall CCLRMP. We examined the level of protection provided by the CCLRMP in three key coastal habitats: deer winter range, wolf reproductive habitat, and salmon reproductive and rearing habitat. Assessment of …
Habitat Structure And Alarm Call Dialects In Gunnison's Prairie Dog (Cynomys Gunnisoni), Bianca S. Perla, C. N. Slobodchikoff
Habitat Structure And Alarm Call Dialects In Gunnison's Prairie Dog (Cynomys Gunnisoni), Bianca S. Perla, C. N. Slobodchikoff
Habitat Assessment and Management Collection
We examined the relationship between habitat structure and alarm call characteristics in six colonies of Gunnison’s prairie dogs (Cynomys gunnisoni) near Flagstaff, Arizona, before and after a mid-summer vegetation change. We found significant differences in alarm call characteristics between colonies, confirming the existence of alarm call dialects. Differences in frequency components but not temporal components of calls were associated with differences in habitat structure. Playback experiments revealed that differences in alarm call structure affected acoustic transmission of calls through the local habitat. Thus, we identify habitat structure as one factor that may contribute to alarm call differences between colonies of …
Nest-Site Selection By Belted Kingfishers (Ceryle Alcyon) In Colorado, Sara Shields, Jeffrey F. Kelly
Nest-Site Selection By Belted Kingfishers (Ceryle Alcyon) In Colorado, Sara Shields, Jeffrey F. Kelly
Habitat Assessment and Management Collection
Along the Cache la Poudre River in northern Colorado, belted kingfishers nested in relatively tall banks that lacked a toe. Kingfishers constructed burrows in soils that contained significantly less sand than was present at systematically sampled points. This finding conflicts with earlier findings that indicate kingfishers select sandy soils for burrow construction. Otherwise, the physical characteristics of banks used by belted kingfishers in Colorado were similar to those found elsewhere.
Sampling Problems And Interpretation Of Chemical Analysis Of Mineral Springs Used By Wildlife, D. Fraser, E. Reardon, F. Dieken, B. Loescher
Sampling Problems And Interpretation Of Chemical Analysis Of Mineral Springs Used By Wildlife, D. Fraser, E. Reardon, F. Dieken, B. Loescher
Habitat Assessment and Management Collection
Mineral-rich springs used by wildlife were studied in order to develop an appropriate sampling technique. The mineral content of the water varied spatially within a lick, apparently because of contamination by nonlick water and animal urine. The spring source usually could be located with a conductivity meter. Samples contaminated by animal urine could be recognized by their high N content and usually by their color. The distinctive chemical composition of licks is best appreciated by comparing filtered samples of lick water with nonlick water collected nearby. Field filtration was necessary when samples were preserved with acid for trace-metal analysis. Soil …