ארכיון יומן של נובמבר 2019

נובמבר 17, 2019

First live observation of Swamp Rabbit Confirmed!

The Nature tracking project finally got something more than trace evidence of Sylvilagus aquaticus, or Swamp Rabbit. The species of greatest conservation need ,(Williamson, Co) that we set our sights on.

This past week was productive by placing a video camera on a previously confirmed trace evidence Latrine Log. During the week two live observations occurred of the log being used and one observation was backed up by another camera.
11/10/19 thru 11/16/19
These cameras will be left in place one more week before being re-tasked.

In addition to this, very fresh scat samples were collected for future DNA analysis.

The bigger challenge will be to determine beyond genus all the observations of cottontail rabbits we continue to see. The black and white images make it difficult to say one way or another.

There is a game camera that will produce color images at night, however it uses white flash technology which the animals can see and be spooked by. I'm not opposed to briefly deploying this to learn the identity. Undoubtedly the animals have experienced lightning and would probably associate a few flashes with that.

My feelings are that if we decide to use a visible night time flash then I am inclined to finish up a project I have been building for a while and that is a DSLR camera trap that I only need to complete the trigger mechanism. I have been building this for the past year in an attempt at a quality photo of a Ringtail.

Hopefully there will be more good news soon!

פורסם ב נובמבר 17, 2019 09:40 אחה"צ על־ידי mikef451 mikef451 | 0 תגובות | הוספת תגובה

נובמבר 21, 2019

First live observation of Swamp Rabbit Confirmed!

Hello Friends!
So this past week was a really good week! After finding the popular latrine log on the North San Gabriel River two weeks back, and placing my camera on it last week, we got two videos of it being used and one of those observations is backed up by one of the other cameras. Both observations have been confirmed and they represent the first live images of Swamp Rabbit that we have documented since we started our Nature Tracking project with Texas parks and Wildlife.
I collected some more fresh scat and my family continues to grumble about the growing quantity of vials in the freezer! Dr. Russell Pfau of Tarleton State University has a plan in place for some early December DNA analysis. We are hopeful of his success!

We managed to get a an American Woodcock on trail camera this week too!
https://www.inaturalist.org/observations/35819286

We have been seeing a lot of cottontail rabbits in our nighttime images and those are just too impossible to determine species I think. Looking back at the three documented Swamp Rabbits I observed in 2018 and early 2019, the benefiting factors for identification were color images, or the fact that the animal was in the water at night and happy about it apparently.
I have been becoming more inclined to use another type of camera to achieve a night time color image. The flash necessary for this is one that would be visible to animals and because of this I would not leave set up for very much time. Hopefully it will be not much different than lightning experienced by animals and certainly the flash duration, at fractions of a second, are not capable of causing harm to eyes. Perhaps next month we may have something in the works regarding this.
Short of trapping animals and releasing, something I know nothing about, I can think of no other method worth trying for short term use and quick answers.
Until next time,
Cheers everybody! And Happy Thanksgiving.

פורסם ב נובמבר 21, 2019 12:58 לפנה"צ על־ידי mikef451 mikef451 | 9 תצפיות | 8 תגובות | הוספת תגובה