Conserve Wildlife Blog

Posts Tagged ‘U.S. Fish and Wildlife Service’

Forest Bird Surveys at Joint Base McGuire-Dix-Lakehurst

Thursday, July 18th, 2024

by Leah Wells, Assistant Wildlife Biologist

CWF has been teaming up with partners from the USFWS New Jersey Field Office and JB MDL’s Natural Resources department to survey the installation’s forest for birds throughout the year. These surveys allow us to get an inventory of bird species found throughout the large expanses of protected natural areas within the base’s boundaries. So far this year, we have documented a diverse array of bird species passing through during migration and some resident species that stay year-round. During the springtime, we got to see warblers such as the black-and-white warbler, pine warbler, common yellowthroat, and American redstart.

Six of the forest bird species documented at the base are State-listed as either threatened or of special concern. The red-headed woodpecker, Melanerpes erythrocephalus, is a state-threatened species. They prefer open woods, both upland and wetland that contain dead or dying trees and sparse undergrowth. The Northern parula, Setophaga americana, and hooded warbler, Setophaga citrina, are both species of special concern during the breeding season. Both breed in mature forests, with the Northern parula nesting in trees and the hooded warbler nesting in shrubs. Wood thrush, Hlyocichla mustelina, is a species of special concern during the breeding season. The wood thrushes breed throughout mature deciduous and mixed forests. Ideal habitat for them includes trees that are over 50 feet fall, a moderate understory of saplings and shrubs, an open forest floor with moist soil and decaying leaf litter, and water nearby. The brown thrasher, Toxostoma rufum, is a species of special concern during the breeding season. This species is often found in woodlands with dogwood, pitch pine, or scrub oak. Lastly, the eastern whip-poor-will, Antrostomus vociferus, is another species of special concern here in NJ during the breeding season. These birds breed in dry deciduous or evergreen forests with little or no underbrush, close to open areas.

Red-headed woodpecker. Photo by Hannah Leddy
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Documenting Bird Life in Delaware Bay Salt Marshes

Wednesday, July 17th, 2024

by Harrison Hepding, CWF Biological Technician

The remote coastal salt marshes of the Delaware Bayshore harbor a unique and seldom observed ecosystem, boasting a rich natural history and diverse wildlife. To help prevent the loss of these valuable habitats and their inhabitants, CWF is participating in a partner-driven, multi-year project led by Ducks Unlimited and the U.S. Fish & Wildlife Service to enhance habitat quality and restore natural hydrology to salt marshes in Delaware and New Jersey. CWF is actively involved in the second season of biological monitoring at select Bayshore salt marshes targeted for restoration efforts designed to revegetate mudflats existing on old salt hay farms (read more about salt hay farming impacts here). At this stage of the project, our role is to gather important pre-restoration data to evaluate the anticipated impact and effectiveness of restoration techniques.

A view from one of our survey points at Dix Wildlife Management Area.
Photo courtesy of Emmy Casper, CWF Wildlife Biologist.
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A Return to Barnegat Light to Get the Beach Ready for Plovers

Friday, February 23rd, 2024

by Todd Pover, Senior Wildlife Biologist

Winter maintenance of the Barnegat Light habitat restoration site is a key element in the project’s success to benefit New Jersey’s piping plovers and other beach-nesting birds. The original project – clearing about 40 acres of dense beach vegetation and dunes to create an early-successional habitat favored by plovers and adding “ponds” to create foraging opportunities – was completed over two winters in 2019 and 2020. Each winter since, we have returned to the site for a short period, typically a week or so, to thin vegetation and reestablish foraging habitat along the pond edges in advance of nesting birds returning for the season.

This year was no exception, I was on-site in late January and early February to guide a bulldozer operator to prepare the site for plovers. Although the maintenance work we do each year is similar, the details and nuances of it vary quite a bit. Last winter, for example, one of the foraging ponds was completely sanded over from fall and early winter storms, so we spent most of the time re-digging that. This year, the ponds were in much better shape, so we had more time to focus on clearing out thick vegetation that had crept back into the site to improve the nesting substrate.

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The Complicated History of Our Marshes and an Update on Restoration Progress

Wednesday, August 23rd, 2023

by Caroline Abramowitz, CWF Biological Technician

When looking at the expansive mudflats along the marshes of the Delaware Bay, it is hard to imagine that the area was once densely vegetated and home to a variety of bird species. This spring, CWF began work on a new marsh restoration project funded by the National Fish and Wildlife Foundation and led by Ducks Unlimited and the U.S. Fish and Wildlife Service (USFWS). CWF was contracted to assist with biological monitoring at sites targeted for marsh restoration along New Jersey’s side of the Delaware Bay. Restoration efforts for our sites are being directed toward mudflats that exist due to significant physical alterations made to the marsh in the past. The story of how these mudflats came to be lies in the area’s history and roots in salt hay farming.

As early as 1675, settlers arriving on the Delaware Bay built dikes in salt marshes to protect land from saltwater inflow and create an environment more conducive to salt hay farming and development. One of the most important types of salt hay harvested along the Delaware Bay was Spartina patens, a crop that was widely used as bedding and feed for livestock due to its high nutritional value. By the mid-1800s, at least 14,000 acres of marsh were impounded in Salem County alone with comparable areas altered in both Cumberland and Cape May counties (Cook, 1870). Impoundments restricted tidal flow within the marsh, which stopped the natural process of marsh accretion in which sediment is consistently added to the marsh to increase its elevation. Additionally, drier conditions exposed marsh soil to too much air, resulting in the breakdown of soil and further loss of elevation.

Salt hay farming circa 1940’s.
Photo retrieved from”From Marsh to Farm: The Landscape Transformation of Coastal New Jersey,” by Kimberly R. Sebold.
Retrieved through https://www.nps.gov/parkhistory/online_books/nj3/contents.htm
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JB MDL Military Conservation Partnership Award & CWF Projects

Thursday, August 17th, 2023

by Meaghan Lyon, Wildlife Biologist

Earlier this year, the U.S. Fish and Wildlife Service (USFWS) awarded Joint Base McGuire, Fort Dix, and Lakehurst (JB MDL) with the Military Conservation Partnership Award for outstanding efforts to protect both State and Federally listed threatened and endangered species. The award recognizes significant natural resource management achievements by military installations, particularly the conservation of important wildlife and their habitats through cooperative work with USFWS and other partners. CWF has been a major partner on many projects at JB MDL spanning from grassland habitat restoration and monitoring, myotis bat surveys and tracking, and a full mammal inventory.

Over the past six years, long term efforts have been ongoing to expand and protect grassland habitat at the McGuire Airfield. So far, roughly 600 acres have been restored to native warm season grasses with another 100 acres to be completed by next spring. The planting of species like little bluestem, sideoats grama, and blue grama has helped to create grassland bird nesting habitat. Grassland bird surveys are conducted each summer to monitor success of species like upland sandpiper and bobolink.

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