Posts Tagged 'Jamaica Bay'
I believe these are Eastern Mud Snails (Ilyanassa obsoleta), which look like rocks until you look closer. There are quite a few of them in Jamaica Bay. And some of them were moving much too quickly. They were, in fact, hermit crabs, who use found snail shells for their own.Hermits don’t have protective shells like your usual crab species; they use snail shells instead, swapping to larger ones as they grow.This article argues that hermit crabs populations are going quite well because of a surplus of shells to choose from, from the introduced Common Periwinkle (Littorina littorea) which has spread up and down the East Coast. (Periwinkles generally like rocky shores, so the New York estuary doesn’t seem to have many of them.)I don’t know the species here. Anybody?
Hermit crabs from the Caribbean, rather larger than these, are exploited by the aquarium trade, and as a result, the internet is full of wails of children of all ages bemoaning their dead and dying “pets.” As animals wrenched from their own habitats (these are usually land crabs like the “Purple Pincher”), they potentially threaten local species and other crustaceans with diseases.
Tags: Brooklyn, insects, invertebrates, Jamaica Bay, reptiles, turtles
Found in the salad spinner after washing some organic lettuce. A Histeridae family beetle, also known as hisser or clown beetles, even though they don’t wear much makeup. They eat the larvae of flies.A late-blooming Prickly Pear (Opuntia), one of my favorite local flowers. A very beat-up Great Spangled Fritillary (Speyeria cybele), a new species for me. They’re rare in the city; this was at Jamaica Bay Wildlife Refuge and seemed to be flying pretty well, considering.Diamondback Terrapin (Malaclemys terrapin) also at JBWR.Our only brackish water turtle. Only the females come to land, to lay their eggs. This one was heading back to the bay, so presumably she had spent the night digging a nest. Considering most of the JBWR nests are plundered by Raccoons (introduced by the highway), best wishes to her. I thought at first this was a large, fast-moving ant, but it’s actually a Red Velvet Ant of the Mutillidae family. Pardon the common name, these are actually wasps and are supposed to have a fierce sting, leading to their alternate name of, head’s up, people, “Cow Killer.” (This is why we have a telephoto lens.) Females are wingless; the winged males look a little more waspy. The larvae are ectoparasites on other wasps, including Cicada Killer Wasps.
Tags: birding, birds, Jamaica Bay
Three young Osprey (Pandion haliaetus) bracketed by their parents at Jamaica Bay Wildlife Refugee last week. They are on the verge of flying, and what flights! Soon, if they survive the hurdles of fledging and learning to hunt on their own (catching your first big fish must be something!), they will be venturing south into the unknown for the first time. One JBWR Osprey has been satellite-tracked to Venezuela, a journey of about two weeks. Wish these young ones luck. The first year is the hardest.
Tags: dragonflies, insects, Jamaica Bay
Tags: birding, birds, Jamaica Bay
American Tree Sparrows (Spizella arborea). They breed in the tundra, and visit us during winter. These were seen at Jamaica Bay Wildlife Refuge. Rufus-caps and sides, white bars on the wing, and a dark central spot distinguish them from the other little brown jobs that are the New World sparrows. (The omnipresent House Sparrow is actually a Eurasian species more related to the finches than our native sparrows.)
Here’s the USGS’s 1898 map of Jamaica Bay, crossed by a railroad down to Oceanus and Hammels. (“Oceanus” has disappeared from the map, sadly.) It looks differently now, with a lot less of the vital marshland that once ringed the southern end of the terminal moraine of Long Island and dotted the great bay itself. I’ve previously told some of the story of the transformation of this area into the Jamaica Bay Wildlife Refuge, when Robert Moses got a bird sanctuary and the MTA got the railroad.
That railroad is now the A train through Broad Channel to the Rockaways, which is still not running after being damaged by Hurricane Sandy. I took the alternate route, which might even be better, the Q52 from the Rockaway Blvd station. Better because the express bus stops right in front of the Jamaica Bay Wildlife Refuge. At the Refuge, though, things are different. The path around the West Pond has been breached; Sandy punched out a channel into the Pond from the south.This has turned the (mostly) fresh water pond into a tidal corner of the larger Bay. It’s a radical change. While the tidal flats should be good for shorebirds, freshwater-loving waterfowl have abandoned the Pond. An important regional bird refuge has thus essentially been halved (the East Pond is in better shape). I, and many others, are hoping the NPS, which runs JBWR as part of Gateway National Recreation Area, engineer a solution. As of this date, though, the future status of the breach remains unclear. It isn’t just a matter of closing the breach; the Pond would have to be re-freshwatered. On the plus side, the salt may kill off the phragmites.
Meanwhile, tidal wrack still clogs the area, north of the path, and, as pretty as these pines look, they are dying.