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 i . . . → Opširnije: Estimates of Global Species Diversity
|
With a great message from Bill Nye, the Science Guy. We need to be conservationists to be sure, preserving wetlands, forests, open spaces and coastlines. We need to reduce our waste — plastic trash and the like. But what we really need is big, new ideas: new ways to distribute and store energy for . . . → Opširnije: Happy Earth Day Podijelite ovu!(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 . . . → Opširnije: Off with their heads! Podijelite ovu! 2 Komentari - (Komentari su zatvoreni)  Entomologija  Barcoding, Leptiri, Konzervacija, DNK, Entomologija, Leptiri, Monarch |
Skepticizam |
