Archivos de Diario para agosto 2017

18 de agosto de 2017

iNaturalist observer bias

The crayfishes Procambarus clarkii and Fallicambarus fodiens are approximately equally abundant in Texas, yet currently there are fifty times more clarkii observations (257 vs. 5).

The difference is that clarkii inhabits areas such as ponds, lakes and streams where they are likely to be seen by humans, whereas fodiens occurs more in ditches and field, and spends most of their time hidden in burrows.

Anotado en 18 de agosto de 2017 a las 03:28 PM por dan_johnson dan_johnson | 1 comentario | Deja un comentario