14 de diciembre de 2019

Newt survey - North side, Wednesday 12/11

December 11, 2019 (Wednesday) 1:30 am – 3:45 pm
We had about 10 days of rain, followed by a drier week.
During the survey it was drizzling part of the time. I documented 1 live and 235 dead newts, some were fresh, some not, but I only documented the ones there were newts for sure.
Other roadkills: one toad, one barn owl, a few millipedes, a Jerusalem cricket, a beetle larva. The live newts was crossing the road, moving away from the reservoir. A large male.
Coverage: north part - Jones trailhead to the stop sign (37.187875, -121.986516).
Rainfall: (MTD: 2.73 in; YTD: 6.21 in) The weather was wet, light drizzle.
Traffic: more traffic than previous times: One gravel truck, 40 cars (including many pickups), 3 bikes, 3 pedestrians. At about 3:30 maybe, Midpen's crew finished their maintenance work, and I saw 2 trucks and 7 maintenance pickups leaving the area. One of the Midpen people asked me how the newts are doing.

Ingresado el 14 de diciembre de 2019 por merav merav | 0 comentarios | Deja un comentario

Juveniles vs Adults

Here's a publication that describes why it's important to collect data on juvenile (newly metamorphosed) amphibian roadkill:

"Neglected juveniles; a call for integrating all amphibian life stages in assessments of mitigation success (and how to do it)"

https://www.sciencedirect.com/science/article/abs/pii/S0006320718316306

"While mortality at any life stage is concerning, juveniles should be of special interest when assessing road mortality and mitigation (e.g., tunnels to facilitate safe seasonal migrations) because their fate can have a disproportionate impact on population dynamics."

Ingresado el 14 de diciembre de 2019 por truthseqr truthseqr | 2 comentarios | Deja un comentario

13 de diciembre de 2019

Newt Survey 12/13 - North half

Coverage: North half of Alma Bridge Road, from the parking lot to the stop sign.
Time: 8:00 - 10:00 am
Rainfall: 0.0 so far today - forecast is for more this afternoon. 7.21" MTD, 10.06" YTD via Weather Cat
Vehicles: 4 trucks and 12 cars, including 2 insane speeders (Blue Tesla and Brown Maclaren)
Other: one bicyclist, one jogger
Live Newts: 0
Dead Newts: 278, about 10% fresh
Other species: (1) Sharp-tailed Snake, (2) Western Toads, 1) Tarantula sp., (1) millipede sp., (1) Jerusalem Cricket, (2) mouse sp., 1) mole sp.

Ingresado el 13 de diciembre de 2019 por anudibranchmom anudibranchmom | 19 comentarios | Deja un comentario

newt survey 12/08 - northern half

(posted for @joescience1)
December 8, 2019 (Sunday)

Coverage: North half of Alma Bridge Road, from the parking lot to the stop sign @ one way road section.
Time: 3:30 - 5:15 am
Rainfall: 0.0 during walk, had rained earlier in day.
Vehicles: 0 trucks and approximately 8 cars, including 1 insane speeders (Blue Porsche Macan with teen driver)
Other: approx 12 bicyclists, 8 hikers
Live Newts: 0
Dead Newts: 77, about 10% fresh

Ingresado el 13 de diciembre de 2019 por truthseqr truthseqr | 1 comentarios | Deja un comentario

South/Aldercroft side - 12/12/2019

Today I walked the South side, from the stop sign to Aldercroft, 12:37pm - 2:28pm. Relatively dry conditions, temperature around 70F, low clouds rolling over the hills nearby, partly cloudy on the road.

63 dead newts. No other dead species seen. No live newts or other critters seen. 10 Santa Clara County Roads trucks working clearing brush, 15 other vehicles, 9 bikes.

Weather from http://www.weathercat.net/wxraindetail.php: 0.07 inches rainfall the previous day, 0.11 inches total today.

Ingresado el 13 de diciembre de 2019 por newtpatrol newtpatrol | 1 comentarios | Deja un comentario

07 de diciembre de 2019

South/Aldercroft side - 12/07/2019

My first time patrolling and posting, so please let me know if I've missed anything. Oh, and please remind me where you get the rainfall amount from, so I can be consistent.

Today I walked the South side, from the stop sign to Aldercroft, 8:40am-10:50am. It rained here last night, was windy, today there are low clouds and it's close to rain but no rain, my car said 64F outside.

77 dead newts, 1 dead frog. There were 3 that I thought were salamanders, but @truthseqr says that they're actually newts whose outer skin has gone.

No live newts or other critters seen. 18 vehicles, 2 joggers and a bicyclist passed by. I swear the maples are significantly more vivid yellow this year.

Weather from http://www.weathercat.net/wxraindetail.php: 0.45 inches rainfall the previous day, 0.32 inches total today.

~ Stacie

Ingresado el 07 de diciembre de 2019 por newtpatrol newtpatrol | 3 comentarios | Deja un comentario

06 de diciembre de 2019

Newt survey - North side, Wednesday 12/04

December 4, 2019 (Wednesday) 9:30 am – 11:30 pm
About a week since the rain started.
During the survey it was drizzling part of the time. I documented 101 dead newts, some were fresh, some have been there for a few days, but since I only saw one the previous time, I documented them all.
Other roadkills: one toad, one other amphibian, one millipede. I saw only one live newt, but it wasn't crossing the road, it was under a log (I haven't added it to the live newt project).
Coverage: north part - Jones trailhead to the stop sign (37.187875, -121.986516) plus spot-checked the Jones Trail trailhead.
Rainfall: (MTD: 2.73 in; YTD: 6.21 in) The weather was cold and wet, drizzle.
Traffic: Light traffic. Five gravel trucks, two maintenance trucks, 16 cars. The county parks truck was clearing the road, probably removing some more dead newts.

Ingresado el 06 de diciembre de 2019 por merav merav | 0 comentarios | Deja un comentario

05 de diciembre de 2019

newt survey 12/04 - southern half

107 dead newts, 3 live newts.
December 4, 2019 (Wednesday) 11:30am-1:30pm
Weather: Had just finished raining. Overcast and 53F.
Other roadkill: 1 Western Toad, 1 California Slender Salamander, 1 Western Fence Lizard, 1 (Bull?)frog.
Coverage: Aldercroft Heights Road intersection to just after the big Soda Springs road bend (37°11'12.6"N 121°59'09.5"W).
Rainfall: MTD: 2.73 in; YTD: 6.21 in
Traffic: Light. 13 vehicles, half of which were local traffic (saw them entering/exiting spur roads).

Today there was a section just south of the Soda Springs bend that had a bunch of tiny baby newts, both alive (the only live ones I saw today) and flattened. Here's a very cute live one being moved off the road to newt another day: https://www.inaturalist.org/observations/36368929
Today again all the living newts were heading away from the reservoir.

Ingresado el 05 de diciembre de 2019 por sea-kangaroo sea-kangaroo | 2 comentarios | Deja un comentario

02 de diciembre de 2019

newt survey 11/30 - southern half

4 dead newts, 4 live newts.
November 30, 2019 (Saturday) 3pm-5pm
Weather: Light intermittent drizzle while I walked. Chilly but not really cold (high 40s-low 50s).
Other roadkill: None.
Coverage: Aldercroft Heights Road intersection to just after the big Soda Springs road bend (37°11'07.5"N 121°59'07.8"W).
Rainfall: (MTD: 3.40 in; YTD: 3.48 in)
Traffic: Light traffic; around 20 cars or so.

The dead newts were all fresh. All of the alive newts and most of the dead newts I saw were heading east, away from the reservoir. They were also concentrated in two areas (blue pins):

Talked briefly to a couple of friendly Midpen Open Space rangers who pulled over to check I was okay. They knew there was a "newt person" who'd been surveying (one of them apparently met Anne once), and I told them there'd be a bunch of people surveying this year.

Ingresado el 02 de diciembre de 2019 por sea-kangaroo sea-kangaroo | 3 comentarios | Deja un comentario

28 de noviembre de 2019

Newt survey - 11/27 - after the first rain

1 dead newt, 0 live newts.
November 27, 2019 (Wednesday) 10:30 am – 12:20 pm
The first big rain event has just started the day before. It started in the afternoon, and continued through the night. During the survey there was little to no drizzle. I only found 1 fresh dead newt, probably died this morning.
No other roadkills.
Coverage: Vulcan quarry to the stop sign (37.187875, -121.986516) plus spot-checked the Jones Trail trailhead.
Rainfall: (MTD: 1.74 in; YTD: 1.8 in) The weather was cold and wet, light drizzle.
Traffic: Light traffic. Two gravel trucks, two maintenance trucks, 16 cars, and one bike.

Ingresado el 28 de noviembre de 2019 por merav merav | 0 comentarios | Deja un comentario

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