The Hidden World of Macroinvertebrates at Our Landcare Sites
Recent surveys at three urban Landcare sites—Jordans Creek, Tree Fern Creek, and Pearce Drive—have provided a fascinating insight into the vital role macroinvertebrates play in our local ecosystems. These tiny creatures, often unnoticed, contribute significantly as pollinators, decomposers, and as food for other wildlife. Despite the challenges of urbanisation, these sites still support a diverse range of species.
The surveys, led by Lachlan Manning of Coffs Critters, revealed a healthy diversity of macroinvertebrates across both terrestrial and aquatic environments. Jordans Creek recorded the highest terrestrial diversity (117 taxa), while Pearce Drive had the most aquatic diversity (26 taxa). The presence of sensitive aquatic species at Pearce Drive and Tree Fern Creek indicates healthier waterways, while Jordans Creek had species more tolerant of lower water quality. These findings highlight the importance of maintaining well vegetated buffer zones along urban waterways to support these ecosystems.
Eighteen volunteers participated in the surveys, gaining a hands-on experience in identifying and understanding these small yet significant species. Volunteer Jeff Alcott (Pearce Drive Site Coordinator) shared, “We can now identify a whole range of critters with unusual common names, especially; techno ants, rattle ants, pony ants, hackled orb-weaver spiders, pirate spiders, spring tails, and very speedy orange predatory mites.” The project has deepened our understanding of the biodiversity in our urban reserves, motivating volunteers to continue their important restoration efforts. The full survey findings are available in the two reports below.
Macroinvertebrates in Focus – Land 2024
Macroinvertebrates in Focus – Water 2024
