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Gary Spangler's avatar

Ed, thanks for sharing this information today. Complexity of ecosystems is brain food for me. I thought of krill and their vitality for vast numbers of animal species. Whales included. I interject this only to amplify your advocacy for Humpback Whales. Global warming and acidification of waters from excessive carbon dioxide levels (both harmful to krill) adds to the complexity of protecting Humpback Whales.

Manatees in the waters of Florida face similar threats to their survival. Ones I see in the Wakulla River and St. Marks River exhibit extensive propellor wounds, often the length of their backs. No wake zones seem to encourage some boaters to go even heavier on the throttle. Prolonged cold snaps-temperatures at/below 60°F-send manatees to primary springs for warmer water as they retreat from open Gulf waters. Often the lack of grasses they favor lead to emaciation and death. Some dietary intervention, using foods like lettuce, are made but seem haphazard.

My dream would be teaching today’s youth about both micro and macro ecosystems in middle school. The planting of seeds. Thanks again, Ed.

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