Author Archives: Mark Willis

Birding Then and Now – Red Knot

Yesterday was International Vulture Awareness Day. Today is World Shorebirds Day. It’s hard to keep up with all the conservation events out there, but I like the idea that the Red Knot has been selected to be the 2015 “Shorebird of the Year” – as hokey as that sounds. I saw Red Knots once as a kid, circa 1969, either at Cape May or Cape Cod. I wish eBird had been around 50 years ago so I could retrieve details from it to refresh my memory! Several migrating Red Knots have been reported in northern Ohio since mid-August. So they do pass through my current whereabouts Continue reading

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Today is International Vulture Awareness Day

The first Saturday in September each year is International Vulture Awareness Day. | Vultures are an ecologically vital group of birds that face a range of threats in many areas that they occur. Populations of many species are under pressure and some species are facing extinction. Continue reading

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3.04 Trillion Trees Are Not Enough

[Crowther et al 2015] Anstract: The global extent and distribution of forest trees is central to our understanding of the terrestrial biosphere. We provide the first spatially continuous map of forest tree density at a global scale. This map reveals that the global number of trees is approximately 3.04 trillion, an order of magnitude higher than the previous estimate. Of these trees, approximately 1.39 trillion exist in tropical and subtropical forests, with 0.74 trillion in boreal regions and 0.61 trillion in temperate regions. Biome-level trends in tree density demonstrate the importance of climate and topography in controlling local tree densities at finer scales, as well as the overwhelming effect of humans across most of the world. Based on our projected tree densities, we estimate that over 15 billion trees are cut down each year, and the global number of trees has fallen by approximately 46% since the start of human civilization. [Nature (2015) doi:10.1038/nature14967] Continue reading

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Link Blog – August 31, 2015

Nature Watch: Rattled by the sounds animals make at night | lehighvalley live.com 083015 Arlene Koch: “One day last week my husband David and I drove to Lansdale to visit a bakery we’d heard about. Normally, buying baked goods in … Continue reading

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Link Blog – August 29, 2015

Couple’s journey of love and adventure leads them to dock in Duluth | Duluth News Tribune 082915 Oney’s boat is registered in Delaware, and other cruisers in New York marvelled at how far they had come.“Ah, no, we came all … Continue reading

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Link Blog – August 28, 2015

Little Miami Scenic Trail The Little Miami Scenic Trail is part of an 80-mile trail network that extends from eastern Cincinnati to Buck Creek State Park near Springfield. | The dream of a hike/bike trail between Xenia and Yellow Springs … Continue reading

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Stone Laboratory: Assessing Lake Erie’s Algal Bloom

One of the news stories references “an annual two-day science and environmental writers’ gathering” held this week at the Stone Lab. I’ve searched for more information about this meeting and how to attend it, but haven’t found any ready answers. As my Lake Erie writing project develops, I’d like to plan to attend this meeting in the future. If any reader has details, please let me know. Continue reading

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