by Ben Wurst / Habitat Program Manager
Whenever we look at how ospreys are faring, weather is always taken into account. When we summarize and report on the results of our summer osprey nesting surveys, we also look at the local climate. Being situated along the Atlantic coast, our weather is influenced by the ocean. As aerial predators of fish, ospreys are reliant on favorable water conditions to forage.
Preliminary results of the 2022 New Jersey Osprey Project Census show that the osprey population was not as productive this year as they have been over the past ~20 years. This was largely due to a low pressure system (nor’easter) that stalled off the coast in early May — when the majority of pairs were incubating eggs. The strong onshore winds caused moderate coastal flooding, windy conditions, increased wave action and water turbidity, which made it more difficult for ospreys to find and catch prey in coastal waters. Males do 100% of the foraging from the onset of egg laying until young begin to fledge, so when they are unable to provide food, females must abandon their nests and eggs to forage for themselves. The nor’easter in May appears to have affected the outcome of many coastal nests and in some cases, complete colonies. Of course there are many other causes for nest failure but this year weather played a major role.
(more…)
