“Ecology of Center City, Philadelphia” by Kenneth D. Frank

Yes, this is the same Ken Frank I wrote about on December 6.

Ken Frank is a hugely talented and enthusiastic amateur naturalist. He refers to his field of study as “the history of natural history”. Having lived in Center City, Philadelphia for 40 years, in retirement (from his career as a physician) he writes about the LIFE in the neighborhood he knows so well.

“If this book has a unifying theme, it is the many ways people have shaped communities of plants and animals that inhabit downtown, the ways these communities have defied human control and survived in spite of, or because of dense urban development…. The ecology of Center City has been dynamic and resilient – qualities I expect will endure.”

Ken Frank notices everything! Who ever heard of the bridge spider? It’s attracted to artificial light, and Frank identifies Walnut Street as a favored habitat. They build beautiful and intricate webs.

Frank documents the “pee line” on trees, where the presence or absence of dog pee determines the identity and color of lichens.

There’s a whole chapter on fireflies, and a page on morning glories. Frank claims to have found 26 species of plants growing on the paved “islands” in the middle of South Broad Street.

The photographs in this book are delightful.

“Ecology of Center City, Philadelphia” makes a great coffee table book, but it is extensively indexed and documented, hence useful to scientists and teachers in their work.

Ken Frank plans to post this masterpiece on line. What a great find it will be for curious future investigators! The publisher is Fitler Square Press.

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