Trepomonas steinii Klebs, 1892 from the northernmost saprobic edge benthos of the spring-fed freshwater coastal pond at Ocean Dunes Apartments in the Atlantic Double Dunes Preserve. This sampling site is situated 250 meters from the edge of the Atlantic Ocean and is rich in decaying organic matter. Imaged in Nomarski DIC using Olympus BH2 under SPlan 40x objective plus variable phone cropping on Samsung Galaxy S9+.
Thanks to Ivan Čepička for identifying this observation. A diplomonad dance party. Today's slide from the northernmost saprobic edge benthos of spring-fed freshwater coastal pond at Ocean Dunes Apartments in the Atlantic Double Dunes Preserve got richer and richer in diplomonad flagellates the longer the slide sat on the stage.
Cells were approximately 8 um – the smallest of all the species of the genus Trepomonas I found. The cells were slightly flattened and had a characteristic teardrop shape at first glance to triangular shape. The rear end was narrower than the front.
Diplomonad flagellates include the gnera Trepomonas and Hexamita. Most genera of diplomonads are parasites, and the few genera that are free-living are usually found in organically enriched (and usually anaerobic) sites. The cells are bilaterally symmetrical along their longitudinal axis. There are two anterior nuclei, and associated with each are four flagella which arise at the head of a groove in the body surface. The genera may be distinguished by the relative lengths of the flagella and by the flexibility of the bodies. In both genera, one flagellum of both quartets extends laterally from the head of the groove. The remainder lie within the groove, with those of the more pliable Trepomonas not extending beyond the posterior margin of the cell, as do those of Hexamita . These organisms may feed either by eating bacteria or by pinocytosis.
Free-Living Freshwater Protozoa: a Color Guide 1st Edition By D.J. Patterson. CRC Press Taylor and Francis Group. p 64.
Field illustration scan
a field sketch which I "completed" later using my own photos of the subject as refrence
graphite and watercolor
SO exciting! I have not seen a sal in this area for years. Found under a rock by a creek.
SO happy to see this in the wild. 09 I believe? Last photo habitat shot.
Predaceous Diving Beetle; Acilius mediatus; PA, Philadelphia, Schuylkill Center for Environmental Education
Collected from a permanent freshwater woodland pond.
Exciting stuff! Two adults and a subadult tightly rolled up in duff under a stone, all three of whom refused to uncoil for me. A nearby board yielded a third adult who was kind enough to move around a bit.
Egret far out in the salt marsh, unfortunately mostly obscured by heat haze. 2269 feet away from my position, measured in Google Maps. Based on the size, probably a Great Egret.
Shiny object in the foreground is a littered mylar balloon.
Didn't really get a good picture, so here's a "great" one instead
Edited: I cloned the observation, so this observation will be for the right grebe and https://www.inaturalist.org/observations/103672738 for the left grebe.
hunting from nearby tree, about 10:30am, looking intently down at snow, then landed and mantled for a couple of minutes, burying its head into the snow several times before flying off in the opposite direction
Male Green Frogs fighting; Lithobates clamitans, PA, Philadelphia, Schuylkill Center
La cría no es de la gaviota, es de Charran Real
3-5 thousand in a large megapod
©williamwisephoto.com Okefenokee Swamp National Wildlife Refuge, Georgia. October 25, 2022.
See and learn more about the incredible Okefenokee at www.okefenokee.photography
A pair observed in a mixed parties of Cutia, Sultan Tit and Lesser Racket-tailed Drongos.
Sadly with deformed beak
running dog shaped cloud!! :)
Lifer! How exciting, and how gorgeous. The yellow tail indicates it's only a few weeks old, I think. Probably a den, so I wouldn't be surprised if there were more around that I didn't see.
Amazon River Dolphins or Botos (Inia geoffrensis) Mother and Calf underwater in Flooded Forest, Rio Negro, Amazonia, Brazil
Mouse scat. Old photo from 1999. I was digging out my old digital photos and found a bunch of animal track and sign images. Date is accurate.
blue emperor/anax imperator
found this one floating in the fishpond. Probably drowned while positioning eggs. Gave me opportunity to see how its head turns on its neck....and a few other detail..
A female.
January 2016.
Lodge/camp near Isalo National Park.
Madagascar.
T041s and T109Cs Wilf Rock to Schooner Cove.
Photo 1:
Well Dang!
I'd been eagerly watching my owl box since an owl visited it for one day in mid October. Only squirrels had occupied it since. At dusk yesterday I got excited when I saw a face with white on it which would rule out a squirrel. Grabbed my camera, turned on the flash since it was so dark. Dang it, that is not an owl either. Has to be a pretty small possum to get in that opening.
Photo 2:
Taking The Slow Elevator Down
When the interloper saw me, it sank out of sight in slow motion, was hilarious to watch. I made all kinds of interesting and coaxing sounds but it refused to look out again. This morning no sign of it. Back to hoping that someday a screech owl couple will move in & raise babies.
10/20/2017, 9:51 AM
Canon EOS 7D Mark II, 1/1250 sec, f/8, 349mm (EF100-400mm f/4.5-5.6L IS II USM), ISO 3200 (auto), Exp comp +1/3