Sentinels on the Wing The Status and Conservation of Butterflies in Canada
Peter W. HallIn Canada, our ties to the land are strong and deep. Whether we have viewed the coasts of British Columbia or Cape Breton, experienced the beauty of the Arctic tundra, paddled on rivers through our sweeping boreal forests, heard the wind in the prairies, watched caribou swim the rivers...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.179.2782 http://www.natureserve.org/publications/pubs/SentinelsOnTheWing_2009.pdf |
| Summary: | Peter W. HallIn Canada, our ties to the land are strong and deep. Whether we have viewed the coasts of British Columbia or Cape Breton, experienced the beauty of the Arctic tundra, paddled on rivers through our sweeping boreal forests, heard the wind in the prairies, watched caribou swim the rivers of northern Labrador, or searched for song birds in the hardwood forests of south eastern Canada, we all call Canada our home and native land. Perhaps because Canada’s landscapes are extensive and cover a broad range of diverse natural systems, it is easy for us to assume the health of our important natural spaces and the species they contain. Our country seems so vast compared to the number of Canadians that it is difficult for us to imagine humans could have any lasting effect on nature. Yet emerging science demonstrates that our natural systems and the species they contain are increasingly at risk. While the story is by no means complete, key indicator species demonstrate that Canada’s natural legacy is under pressure from a number of sources, such as the conversion of lands for human uses, the release of toxic chemicals, the introduction of new, invasive species or the further spread of natural pests, and a rapidly changing climate. These changes are hitting home and, with the globalization and expansion of human activities, it is clear the pace of change is accelerating. While their flights of fancy may seem insignificant, butterflies are sentinels or early indicators of this change, and can act as important messengers to raise awareness. Based on current evidence, and on a review of this evidence |
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