As mentioned in the previous weeks, there was one special bat that made its way into the top of our net during the 2022 bat field season that left us overjoyed! One juvenile, female hoary bat (Aeorestes cinereus) was captured during our last week of surveying. This is only the second time this bat has been captured at this site in the Pinelands. Even though the hoary bat is not an endangered species, this is a rare capture for our team because the species is generally flies high and our nets only go as high as 5.5 meters. Additionally, the habitat we survey is more suited to the Northern long-eared bat which like densely cluttered forests, whereas the hoary bat typically is found on the edges of open fields.
Bands, like the one in this photo, help us to determine how fidelic bats are to their foraging and breeding areas.
During the past two months, CWF biologists have spent many late nights surveying for bats in the Pinelands! A typical survey night starts just before sundown with setting up expansive nets across corridors in the woods. In the dark, these fine threaded nets are nearly invisible to bats and the occasional flying squirrel or whip-poor-will. As the sun sets, the bats emerge, rushing through the sky to their foraging grounds. Every ten minutes, from sunset till 2am, the nets are checked, and any captured bats are safely extracted to then be identified, weighed, and measured.
Over the course of ten nights during the 2022 summer mist netting surveys, 79 bats were captured! That’s 30 more bats than were captured in 2021 in the same area of the Pinelands! Unfortunately, none of our target species like Northern long-eared bat or little brown bat were captured. Even though our survey goals were not met, there was still some exciting news throughout the season like recaptured bats from previous survey years. One recaptured bat was banded in 2018 which provides some insight into how site fidelic these bats can be to their foraging and breeding areas!
CWF intern Connor Zrinko inspects a large tadpole he collected while dipnetting.
At quick glance, Pine Barrens tree frogs (PBTF), with their vivid green backs, deep purple sides, and vibrant yellow thighs, might put folks in mind of Central and South American rainforests. Based on their visage, they could, theoretically, be at home beside red-eyed tree frogs and poison arrow frogs – the poster children of amphibian diversity. They have occupied that spotlight themselves. In fact, in his 1983 Endangered Species series, American pop artist Andy Warhol chose to immortalize the PBTF in silkscreen as the lone representative of herptiles. But these tiny beauties do not favor the tropics. Occurring in three disjunct populations across the eastern United States including the Florida/Alabama panhandle, the Carolinas and, naturally, New Jersey, PBTF are habitat specialists. They reside in seepage bogs where the water is relatively acidic, due to the presiding vegetation. Sadly, as is the case with many animals reliant on very specific landscape features, habitat loss and fragmentation pose a concern for the persistence of this species, which is listed as threatened in New Jersey.
CWF is very excited to be partnering with NJDEP, Division of Watershed Protection and Restoration on a long-term study aimed at better understanding the effect of development on vulnerable species. We will measure abundance, adult health and survival, and larval growth of Pine Barrens tree frogs within a population impacted by encroaching construction to evaluate whether current wetland regulations, including buffer size, are sufficient for species conservation.
Ground-nesting birds in New Jersey face many difficulties and threats that most other birds typically do not struggle with. Joey and Hamlet, the piping plover pair at National Guard Training Center in Sea Girt, were not exempt from those hardships this nesting season. We know our readers have been waiting for an update on the pair, and as a warning, their story did not end well this year. Joey lost his mate, Hamlet, to a predator attack just days before their chicks would hatch. Her body was found not far from their nesting site- evidence pointing to a bird of prey taking her out. Piping plovers and other beach-nesting birds can be easy targets for owls and falcons. They incubate their nests out in the open without the cover of dense vegetation. Man-made structures along the NJ coast often serve as roosts for raptors to monitor an area and pick out vulnerable prey. Hamlet was, unfortunately, a victim of nature taking its course, and Joey was left to rear the chicks on his own.
Hello! I would like to introduce myself as a new member of the Conserve Wildlife Foundation of New Jersey team. My name is Rachel McGovern, and I am joining CWF as the Education Director.
I am a lifelong NJ resident and have always been passionate about environmental issues in the state. After completing my undergraduate degree in Human Ecology at Rutgers University, I spent a year in the Americorps New Jersey Watershed Ambassador Program (NJWAP) where I first taught environmental education lessons. Since then, I have had wonderful experiences teaching at nature-based organizations across the state.
Most recently, I was the Program Director at Flat Rock Brook Nature Center in Englewood, NJ. This center is located on a 150-acre forested preserve surrounded by dense development just minutes from the George Washington Bridge. At Flat Rock Brook, I led the education team in developing and delivering school programming, community events, and summer camp. I was also fortunate to take on the care of five non-releasable raptors—a job that deepened my admiration for all raptors in NJ (particularly falcons).
Josephine is a great-horned owl. She is an imprint, meaning she was raised by humans and now “identifies” with humans.
