Doug Beckers:
Insects, arachnids and floating aquatics
Doug Beckers:
Lemna, Spirodela and Azolla
Doug Beckers:
Azolla and Spirodela
Doug Beckers:
Potomogeton crispus
Doug Beckers:
Potomogeton crispus wetland, Pambalong Nature Reserve
Doug Beckers:
Main Swamp, Pambalong Nature Reserve