The Site features Bermuda’s largest permanent freshwater pond and a broad strip of fringing marsh at the northern end. The pond biota is limited, probably due to a combination of high water temperatures in summer, unstable organic sediment, nutrient run-off from surrounding land and gradual sedimentation. It nevertheless supports an internationally important population of the endangered endemic “freshwater adapted” Bermuda killifish (Fundulus bermudae), which has been used to populate two further ponds in Bermuda. The Site also contains a notable subpopulation of the endangered and endemic Bermuda sedge (Carex bermudiana), and a number of surviving examples of the critically endangered endemic Bermuda cedar (Juniperus bermudiana). It is also noted as the most important mudflat area for transient shorebirds in Bermuda and as an important location for resident and migratory waterfowl. Warwick Pond is an important location for recreation and education, and the Bermuda National Trust maintains a nature trail with interpretive signage. Pollution from surface water run-off is a major concern, along with the gradual encroachment of vegetation onto the mudflats. Invasive plant species also pose a challenge to reforestation efforts which use native and endemic plants.