Sentinel species are those whose health, behavior, or population changes can act as an indication of environmental health and can even be early warning signs for environmental hazards, pollution, or ecological decline. In the Peconic Estuary, there are four sentinel species that are studied: horseshoe crabs, diamondback terrapins, river otters, and saltmarsh sparrows. As threats to these species can impact their populations, PEP is steadfast in its approach to protect the habitats that wildlife reside in to help conserve these species for the future and vice versa.
More information on these species is needed to help guide conservation policy for the habitats which they utilize. Continuing to monitor and survey these critical species as well as their interactions on the environment will be a useful approach to provide data about habitat use by both species, and such technology may have potential to extend to other species of concern in the future.
Horseshoe crabs are living fossils that have been on Earth of millions of years, predating the dinosaurs. PEP has funded multiple projects related to the future management of horseshoe crabs.
Diamondback terrapins are a sentinel species specifically adapted to estuary waters. To protect diamondback terrapins and their habitat, PEP is engaging with partners and funding projects to conserve and mitigate the threats that impact their populations.
River otters are indicator species, meaning that their presence, absence, or change in population is a direct reflection of the surrounding ecosystem’s overall condition. PEP and Seatuck Environmental Association have conducted a multi-year population assessments to help protect these charismatic animals.
Saltmarsh sparrows occupy the narrow bands of coastal salt marshes. Another indicator species, their presence is a sign of salt marsh health. PEP works alongside partners to support the joint venture to improve saltmarsh sparrow habitat condition and thus, protect their populations.
