Conservation – Birds

Drafting

Conserving Bird Species at Risk in NS Working Forests- Dr. Cindy Staicer
This webinar was recorded on June 2nd, 2022 as part of a workshop series on Conserving Bird Species at Risk in NS Working Forests led by bird researcher and retired Dalhousie University professor, Dr. Cindy Staicer. Subtitle: SAR Conservation through Best management Practices. Goal (at 7:51) . Four of the five landbird Species at Risk (SAR) in Nova Scotia are Aerial Insectivores – Common Nighthawk, Eastern Wood-Pee-Wee, Olive-sided flycatcher, Canada Warbler; the Rusty Blackbird picks insects out of shallow water. She also talks about Canada Migratory Birds Convention Act which provides legal protection of native birds, migratory or not, their nests, eggs and nestlings from destruction, purposeful or accidental.

Forest degradation drives widespread avian habitat and population declines
by Matthew G. Betts et all, 2022 in Nature Ecology & Evolution. The full text is publicly available. Abstract In many regions of the world, forest management has reduced old forest and simplified forest structure and composition. We hypothesized that such forest degradation has resulted in long-term habitat loss for forest-associated bird species of eastern Canada (130,017 km2) which, in turn, has caused bird-population declines. Despite little change in overall forest cover, we found substantial reductions in old forest as a result of frequent clear-cutting and a broad-scale transformation to intensified forestry. Back-cast species distribution models revealed that breeding habitat loss occurred for 66% of the 54 most common species from 1985 to 2020 and was strongly associated with reduction in old age classes. Using a long-term, independent data-set, we found that habitat amount predicted population size for 94% of species, and habitat loss was associated with popula- tion declines for old-forest species. Forest degradation may therefore be a primary cause of biodiversity decline in managed forest landscapes.
Also view:
2022 Bird Study: Notes
2022 Bird Study: Press Reports