Conserve Wildlife Blog

May 10th, 2013

New Jersey’s Endangered Species List Continues to Grow

NEW JERSEY’S STATUS REVIEW OF TERRESTRIAL MAMMALS HAS BEEN COMPLETED

By Michael Davenport, Marine Species & GIS Programs Manager

Little brown bat thumbhugger

A little brown bat, one of several bat species which will be added to the state’s list of Endangered species. Photo by MacKenzie Hall.

The state’s Endangered and Nongame Species Program (ENSP) has recently completed a status review of the state’s terrestrial mammal species.  As a result of this review, an additional four species (all bats) have been recommended for listing as Endangered in New Jersey (eastern small-footed myotis, little brown bat, northern myotis, and tricolored bat).  An additional four bat species (big brown bat, hoary bat, red bat, and silver-haired bat) and a rodent (the meadow jumping mouse) have been recommended for listing as Special Concern.  These additional listings are largely due to the impact of White-nose Syndrome, especially on cave-dwelling bats.  However, additional increasing threats, such as wind turbines, were also factors.

Although these status changes have been recommended, it may take several more months or even years before the changes to the lists are made official through a formal rule-making process.  The most recent status review for birds, for instance, was completed in 2005 but it wasn’t until 2012 that the status changes decided upon within that status review went into effect.

The process for determining a species’ state status is known as the “Delphi” method of species status review and it is a process which Conserve Wildlife Foundation of NJ (CWF) staff assists the state with.

The ENSP endeavors to complete a review of all species currently included on the Endangered and Nongame lists every 5-10 years.  In addition, other species groups not currently included on those lists may be reviewed for status as well.  At any given time, there may be several status reviews being conducted.

The first step taken in conducting a status review is to identify experts and invite them to participate as a member of a review panel.  Members of the panel may be comprised of experts within academia, government agencies, non-profits, or private consultants as well as others.

Once a sufficient number of experts have agreed to participate, staff within the ENSP and CWF will compile background material for the species being reviewed.  This may include reports, survey data, and data contained within the state’s Biotics database which is the electronic warehouse for all imperiled species data in New Jersey.  This background data, as well as a list of the species being reviewed, and definitions of the status options, are then sent to the panelists for Round 1 of the review.

Delphi reviews are comprised of multiple “Rounds”.  For each round, each panelist will choose a status for each species based upon that panelist’s expertise as well as the background material.  The panelist then sends their selections and justification regarding each species to ENSP or CWF staff who compile the results submitted by all panelists.  The review is completed anonymously, so the panelists do not know the identities of the other participants.

For each species, the panel must reach consensus of at 85% of the respondents for a species’ status to be determined.  If consensus is not reached during the first round, that species will move on to be reviewed in Round 2.  For each new round, the panelists’ status choices during the prior round, as well as all the comments made, are available to the panel, so that reviewers can consider the weight of evidence and other reviewers’ opinions on status as they prepare to vote again.  This continues until consensus is reached for all species under review.

Once consensus is reached for all species or, if after four rounds have passed and consensus could not be reached for some species, ENSP or CWF staff take the compiled Delphi results to the Endangered and Nongame Species Advisory Committee (ENSAC).  ENSAC reviews the results and makes the final recommendations on status for those species for which consensus was not reached by the expert panel.  Based upon ENSAC’s recommendations, any changes to the Endangered and Nongame lists must go through a formal rule-making process before those changes can be made official.

The Delphi review process is a science-based, anonymous review by those with the most expertise on the species within New Jersey.  A great deal of thought and time go into preparing for and carrying out a review and CWF has played a major role in assisting with the process.  From the blue whale to fairy shrimp, each species will ultimately receive a state status, leading the way for conservation action.

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Posted in Bats, Wildlife Protection | No Comments »

May 8th, 2013

Reduce, Reuse, Recycle!!

Single use plastic bag wrapped around ospreys neck…

by Ben Wurst, Habitat Program Manager

We had quite a scare last week, on April 30th around 12:30pm, after getting a report from an observer of our Osprey Cam on our Facebook page. A single use plastic shopping bag had gotten wrapped around the neck of the incubating female. After getting the report we started to monitor the situation to see how it would unfold. The bag was loosely wrapped, so we hoped she would be able to free herself…which she did after an hour.

Here you can see the single use plastic bag around her neck.

Here you can see the single use plastic bag around her neck.

A lot of viewers and FB fans were asking why we weren’t going out to remove the bag from her neck. We answered each and every question to help make sure people knew that we were doing everything we could to protect her safety. First, we couldn’t just walk out to the nest (which is out in the middle of the salt marsh) without the female reacting to us and flying off the nest (with the plastic bag around her neck). Her flying off the nest with the bag around her neck would have only caused even more harm to her. She could have gotten snagged on a piece of nesting material and in the struggle could have choked to death or she could have fractured one of her eggs… Second, if she would have been tied down to the nest, then we would have enacted a plan to go out to the nest (after a certain amount of time) and released her. Our policy is that we will only intervene if it is a life or death situation. When we enter their nest sites we introduce stress to the birds which can ultimately do more harm than good. Finally, at least we have a camera to monitor the nest! Think of all the other 500+ nests in New Jersey where we only go out to monitor them once or twice during the nesting season. So much plastic winds up in osprey nests that it is a serious concern. People need to be more aware of their surroundings and do their best to make sure waste is properly disposed of.

There are ways you can help make a difference:

  1. Reduce the amount of stuff you buy and the amount of trash you produce
  2. Reuse what you can, recycle what you can’t
  3. Pick up litter when you see it. There is a great movement in Australia called “Take 3” and their message is simple: “Take three pieces of rubbish with you when you leave the beach, waterway or… anywhere and you have made a difference.”  
  4. Stop or reduce your dependence on single use plastics
  5. Use reusable shopping bags
  6. Don’t release balloons!
The female struggles to get free of the bag.

The female struggles to get free of the bag.

Statistics for plastic recycling are dismal… According to the U.S. Environmental Protection Agency “In 2010, the category of plastics which includes bags, sacks, and wraps was recycled at almost 12 percent.” We’re lucky that she was able to free herself. This just proves that ospreys do not have an easy life. There are many threats to ospreys and they have very high mortality rates, which are around 80%.

On the positive side, the female and male continue to incubate three eggs at Edwin B. Forsythe NWR. We should start to watch for hatching around May 19-20th. We have been writing nest news with other life history information on a weekly basis on our Osprey Cam page.

 

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Posted in Education, Raptors | 1 Comment »

April 27th, 2013

PIPING PLOVER BAND RESIGHTING IN NEW JERSEY

A new window into our plover world

By Todd Pover, Beach Nesting Bird Project Manager

Banded Piping Plover at Stone Harbor Point, NJ. Courtesy of Tom Reed

Banded Piping Plover at Stone Harbor Point, NJ.
Courtesy of Tom Reed

On the beach nesting bird project we are normally busy this time of the year locating nests, putting up fence to protect nesting areas, and placing special predator cages around piping plover nests. This year we have added a new wrinkle – we are also conducting intensive piping plover band re-sighting surveys.

Those surveys are possible as a result of a research project being conducted in New Jersey (and Massachusetts) by the State University of New York – College of Environmental Science and Forestry on piping plover flight behaviors and patterns. About 30 plovers were colored banded here last year with more planned this season as part of the study. This has provided an exciting opportunity for us to answer some questions of our own that are not part of the research project itself, so the Conserve Wildlife Foundation of New Jersey and the state’s Endangered and Nongame Species Program have teamed up to do near daily band re-sightings this spring and last fall. Read the rest of this entry »

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April 17th, 2013

Attend the NJ Wildlife & Conservation Conference on April 26th

Public invited to hear expert panels on invasive species, wildlife disease, and other threats facing sportsmen and wildlife conservationists

NJWCC logoHunters and birdwatchers alike will come together for the first annual New Jersey Wildlife and Conservation Conference on April 26, 2013 in Eatontown, New Jersey. Conserve Wildlife Foundation of NJ (CWF) is partnering with the New Jersey State Federation of Sportsmen’s Clubs and the New Jersey Division of Fish & Wildlife to host these expert panels at the Sheraton Eatontown Hotel at 6 Industrial Way East in Eatontown, N.J.

“Working together for wildlife was the catalyst that blurred the lines between the Federation camouflage and Conserve Wildlife green, enabling us to partner together and tackle the complex fish and wildlife issues facing New Jersey today,” said Frank Virgilio, President of the New Jersey State Federation of Sportsmen’s Clubs.

The inaugural conference will feature panels of wildlife experts from New Jersey Audubon, the New Jersey Outdoor Alliance, and many other organizations, exploring timely and controversial issues ranging from invasive species and wildlife disease to our declining forest health and conservation advocacy.

“The many conservation enthusiasts in New Jersey owe a great deal to sportsmen, who practiced wildlife conservation long before it entered national consciousness,” said CWF Executive Director David Wheeler. “Today our shared interests have led to countless success stories, protecting New Jersey’s valuable habitat and wildlife species during a time when we face more challenges than ever. This conference will tackle those issues with the most timely and meaningful information available.”

Individuals or companies seeking to register should visit www.ConserveWildlifeNJ.org.  Discounted rates for attending are as low as $20 for the all-day panels.

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April 10th, 2013

Re-sighting New Jersey Eagles

Looking for green bands.

by: Larissa Smith, wildlife biologist/volunteer manager

One way we can track eagles is with transmitters which I’ve discussed in previous blogs. Since 2011 three eagle chicks have been outfitted with satellite transmitters to track their movements. Two of the birds have since died. To follow the movements of the third eagle go to http://www.merrillcreek.com/eagletracking.html

Eagle banded C/84 © Peter Stegemann

Eagle banded C/84 © Peter Stegemann

Another way to track eagles is by banding them.  The NJ Endangered and Nongame Species Program has been banding eagles with green (NJ specific) bands since 1987.  Eagles are banded when they are six weeks of age and get a green NJ band on one leg and a silver federal band on the other.  The state band has a letter over a two digit number. The band information is entered into the National Bird Banding Lab database and when someone finds an injured or dead eagle they can report the band. Most of the information that comes in from these bands are from dead or injured birds. The bands tell us when and where the the bird was banded. By using spotting scopes people can sometime see that a bird has green band but many times are unable to read the number.  We know that  23 pairs of eagles nesting in New Jersey have at least one bird in the pair that was banded in NJ.

Eagle banded D/64© Justin Pursell

Eagle banded D/64© Justin Pursell

Sometimes we are lucky to get re-sightings from photographers with high powered lenses who can focus in on the band.  Just in the past week we’ve gotten three sightings of NJ birds.  One eagle has been seen on Long Island with a green band and reported by Peter Stegemann. He has seen this bird all last summer and fall with another eagle and they might be nesting this season. This would be the first pair of eagles to nest on Long Island since DDT wiped out the eagle population. By zooming in on the photo ENSP principal biologist Kathy Clark was able to read the letter and first number as C/8.  The second number couldn’t be read but by going through the banding records it was determined that this eagle was banded in 2009 at the Princeton nest.

Eagle banded D/39 © Kristen Nicholas

Eagle banded D/39 © Kristen Nicholas

 

Another NJ banded bird (D/64) was photographed by Justin Pursell in Schwenksville, PA on April 7th, 2013. The eagle hasa nest in the area.  The bird was banded May 10, 2004 at the Hopewell West nest in Cumberland County.  Kristen Nicholas took a photo of a third  year NJ banded bird at Lake Tappan Northern NJ/Lower NY on March 20, 2013. The green band is D/39  a third year male which was banded in 2011 at the Oradell Reservoir in Bergen County NJ.

While it’s great to get re-sightings of NJ banded birds we don’t want to get them at the expense of the eagles. These photos were taken by photographers with high powered lenses. People should view eagles from a safe distance so as not to disturb them, especially when they are nesting.  Disturbance to a nest can cause the eagles to abandon the eggs/young or cause the young to prematurely jump from the nest.

To report a banded eagle please contact Larissa Smith Larissa.Smith@conservewildlifenj.org

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