Research Associate in Ichthyology and Ornithology & Mammalogy at the California Academy of Sciences; Curator of Natural History at the Museum of Riverside, California, USA; Director of Research at the Klein Karoo Biosphere Reserves in Western Cape, South Africa; professor in the biological and earth sciences for 31 years.

Riverside Citizen Science:
https://www.inaturalist.org/projects/riverside-citizen-science

Roadkill New Zealand:
https://www.inaturalist.org/projects/roadkill-new-zealand

Klein Karoo Biosphere Reserves:
https://kleinkaroobiosphere.wordpress.com/home/
and
https://www.inaturalist.org/projects/klein-karoo-biosphere-reserves

eBird:
https://ebird.org/profile/MzY2Njg3/world

Research Gate:
https://www.researchgate.net/profile/Douglas_Long2/research