Hop Bush Hex

There are so many complex interactions in Nature that we know so little about. Before emails, corporate-structured universities and funding cycles, ecologists spent a lot more time in nature, observing patterns that inspired questions to answer. Now that we spend more time indoors than out, how many ecological puzzles remain unsolved?

For the last few months I’ve been sampling insects in apple orchards for an ecosystem services project I’m working on. As a habitat comparison, I also collect insects in patches of native vegetation next to the orchards. At one of our sites, a biodynamic orchard in northern Victoria, the native vegetation is a stand of mixed Eucalyptus, Acacia and Dodonaea species that were planted on the farm some years ago.

Dodonaea (hop bush) is the largest genus in the soapberry family (Sapindaceae). It is predominantly Australian and a bit of a black sheep in the family. Many hop bushes prefer dry, open woodland; most other Sapindaceae species are found in dense tropical rainforests. Hop bushes produce small winged seed capsules; tropical Sapindaceae usually produce large fleshy fruits, like the lychee, longan, tamarind and rambutan. Hop bushes are wind pollinated; other Sapindaceae use extravagant, perfumed flowers to attract bird and insect pollinators. Continue reading