This recent article in the American Naturalist has taken a second look at some of the famously inflated species estimates, some going high as 100 million (Erwin, 1988). Estimates conducted by the authors indicate that projections above 30 million have probabilities of <0.00001. Their estimated range is more likely to be between 2.5 en . . . → Lees meer: Estimates of Global Species Diversity
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With a great message from Bill Nye, het Science Guy. We moeten natuurbeschermers zijn om zeker te zijn, het behoud van wetlands, bossen, open ruimtes en kusten. We moeten ons afval te verminderen — plastic afval en dergelijke. Maar wat we echt nodig hebben groot is, nieuwe ideeën: new ways to distribute and store energy for . . . → Lees meer: Gelukkig Dag van de Aarde Deel dit!(photo credit) The monarchs have started their spring migration north and you might even see one soon (not exciting if you live in FL or HI where there are year-round residents, or in CA where there are separate overwintering spots). Reports from their winter locations in Mexico however are dismal; with possibly the lowest . . . → Lees meer: Weg met hun hoofden! Deel dit! 2 commentaar - (Reacties zijn gesloten)  Entomologie  Barcoding, Vlinders, Behoud, DNA, Entomologie, Lepidoptera, Monarch |
Scepticisme |
