Estimates of Global Species Diversity

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 och . . . → Läs mer: Estimates of Global Species Diversity

Lycklig jorddag

Med ett underbart meddelande från Bill Nye, Science Guy.

Vi måste vara naturvårdare för att vara säker, bevara våtmarker, skogar, öppna ytor och kuster. Vi måste minska vårt avfall — plast skräp och liknande. Men vad vi verkligen behöver är stor, nya idéer: nya sätt att distribuera och lagra energi för . . . → Läs mer: Lycklig jorddag

Off with their heads!

(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 . . . → Läs mer: Off with their heads!