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Conservation is not as simple today as in the past. One hundred years ago it seemed that if we could just stop the plume hunters from shooting egrets to decorate ladies' hats, and if we could only save a few areas of spectacular scenery in national parks, we were doing well. Somewhat later it became apparent that we had to protect many kinds of habitats (wetlands, grasslands, deserts, forests of all kinds) to save wildlife. To that end, we established a series of reserves including national wildlife refuges, research natural areas, state nature preserves, and private sanctuaries managed by groups such as The Nature Conservancy and National Audubon Society. The tacit assumption was that these little enclaves of nature would persist forever in the stable climax condition in which we found them.
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Stored only when both papers are in the corpus — 30 citations exist upstream.
Papers that cite the same references — the relational fallback while embeddings are still backfilling.
Imported from OpenAlex (CC0) — nothing here is generated.