Oral Presentation Society for Freshwater Science 2025 Annual Meeting

Dragonfly natal habitat patterns in a series of small urban ponds. (117333)

Maria A. Aliberti-Lubertazzi 1
  1. Rhode Island School of Design, Providence, RI, USA

Mount Auburn Cemetery (MAC) in Cambridge, Massachusetts (USA) is a historical 71 ha green space in the heavily urbanizing landscape of metropolitan Boston.  There are four separate, small wetlands at MAC, differing in size (0.04 – 0.58 ha) and surrounding landscape matrix.  I conducted cross-seasonal surveys of dragonfly (Odonata: Anisoptera) exuviae at two of these ponds for nine consecutive years, with the other two ponds being sampled over the last six years.  Although the diversity of emerging species is low, even for urban ponds, there are some interesting patterns in the resident (and migrant) dragonfly community.  All four ponds support consistently different species communities, often with one or two species that are more abundant than the rest.  Average number of species emerging per year at the ponds ranges from 2 to 8, and species community overlap ranges from very low to somewhat nested.  I discuss the potential role of surrounding upland habitat in influencing the emerging species patterns at this set of closely-situated urban ponds, and how this pertains to local biodiversity, conservation efforts and citizen science programs.