28 de noviembre de 2022

Berry Springs Preserve Herps of Texas report, 26Nov2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
One amphibian species was observed in the ditch in the pecan orchard (Rio Grande Leopard Frog (CI = 0), but no photo was obtained. It was chilly, damp, and very quiet.
According to the USGS gauge station at Berry Creek at Airport Road near Georgetown, TX (https://waterdata.usgs.gov/monitoring-location/08105095/#parameterCode=00065&period=P7D), there had been 1.69 inches of rain during the week before monitoring, and 4.97 inches of rain since the last monitoring session on 23Oct2022. The sloughs and ponds were full again, water was flowing over the dam, and the flow in Berry Creek was normal.
The monitoring period was 17:15 - 18:30.
Participants were Kathy and Carolyn.
Environmental conditions at the main ponds at sunset:
Air temperature = 52.5 deg F
Water temperature = approximately 62 deg F
Sky = no/few clouds
Water level = average
Relative humidity = 41 %

Ingresado el 28 de noviembre de 2022 por k_mccormack k_mccormack | 0 comentarios | Deja un comentario

29 de octubre de 2022

Freshwater Mussels of Texas report, 27Oct2022

On October 27, 2022, two people did a random shoreline freshwater mussel search where Backbone Creek empties into Lake Marble Falls (i.e., the back side of Lakeside Park in Marble Falls). Lake Marble Falls is one of the Highland Lakes located in the Colorado River basin in Burnet County, Texas.
Water levels were down approximately seven feet in Lake Marble Falls due to an intentional drawdown by the Lower Colorado River Authority (LCRA) for continued maintenance, cleanup, and repairs after historic flooding in the fall of 2018. The weather was sunny with mild temperatures.
The monitoring period at Lakeside Park (lat/long approximately 30.567, -98.279) was 11:00 AM – 12:45 PM and we walked approximately 400 feet. The substrate was mostly silt.
Non-native Asian Clams and Zebra Mussels (both too numerous to count) were observed. Note that Zebra Mussels were not observed when we performed a similar survey at this location on January 12, 2019 (https://www.inaturalist.org/journal/k_mccormack/21654-freshwater-mussels-of-texas-report-12jan2019).
Two native freshwater mussel species were observed:
• Giant Floater – none alive, five shells, and seven valves; and,
• Paper Pondshell – none alive, one shell, and no valves.
Note that Threeridge (two valves) and Tampico Pearlymussel (two valves) were observed at this location in the previous survey (which covered approximately 1,200 feet and spanned 2.5 hours), but the Paper Pondshell was a new observation for us this time.
Survey participants were Kathy and Amy. Many thanks to Marsha May for remote help with identification (texting with photos !) during the survey.

Ingresado el 29 de octubre de 2022 por k_mccormack k_mccormack | 6 observaciones | 1 comentario | Deja un comentario

25 de octubre de 2022

Berry Springs Preserve Herps of Texas report, 22Oct2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Four amphibian species were observed in the ponds: Rio Grande Leopard Frog (CI = 2), Blanchard's Cricket Frog (CI = 0), Gulf Coast Toad (CI = 0), and Western Narrow-mouthed Toad (CI = 0). Audio recordings were obtained for Rio Grande Leopard Frog, and photos were obtained for all four species.
We saw an armadillo at sunset and a mother wolf spider carrying her babies on her back.
According to the USGS gauge station at Berry Creek at Airport Road near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been 0.88 inches of rain five days before monitoring. The sloughs were still dry, the ponds were still lower than normal, no water was flowing over the dam, and the flow in Berry Creek was lower than normal.
The monitoring period was 18:50 - 20:20.
Participants were Kathy, Christie, Amy, and Carrie (welcome !). In addition, a family of five found three species (Blanchard's Cricket Frog, Gulf Coast Toad, and Western Narrow-mouthed Toad) for us within the first 30 minutes of monitoring.
Environmental conditions at the main ponds 40 minutes after sunset:
Air temperature = 77.7 deg F
Water temperature = 67.9 deg F
Sky = no/few clouds
Water level = much below average
Relative humidity = 36 %

Ingresado el 25 de octubre de 2022 por k_mccormack k_mccormack | 5 observaciones | 0 comentarios | Deja un comentario

22 de septiembre de 2022

Berry Springs Preserve Herps of Texas report, 19Sep2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Four amphibian species were observed in the sloughs and ponds: Rio Grande Leopard Frog (CI = 2), Blanchard's Cricket Frog (CI = 1), Gulf Coast Toad (CI = 0), and possibly Green Treefrog (CI = 1). Audio recordings were obtained for two species (Rio Grande Leopard Frog and Green Treefrog), and Rio Grande Leopard Frog and Gulf Coast Toad was also documented with photos. Blanchard's Cricket Frog called briefly only a few times, so no documentation was obtained for this species. If it was truly a Green Treefrog, it was a very strange call - only half of the usual two-syllable call.
[UPDATE 28Oct2022: In the member slideshow prior to the start of the Good Water Master Naturalist monthly meeting on 27Oct2022, I saw that a Squirrel Treefrog was photographed at the main pond on 16Oct2022. I've never seen or heard this species before, but I listened to an online recording of the call and confirmed that our strange Green Treefrog was actually a Squirrel Treefrog. This the first time that I've observed it at Berry Springs Park and Preserve over the past 13 years of monthly amphibian monitoring there.]
We saw Chimney Swifts overhead before sunset, and two separate armadillos after sunset. There were also A LOT of little bugs attracted to our lights - maybe they were coming from all of the decaying vegetation around the ponds.
According to the USGS gauge station at Berry Creek at Airport Road near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been 1.24 inches of rain on 30Aug2022 and 0.61 inches of rain on 04Sep2022 (15 days before monitoring). The ponds and sloughs were slowly refilling, but no water was flowing over the dam, and the flow in Berry Creek was lower than normal.
The monitoring period was 19:35 - 20:35.
Participants were Kathy, Carolyn, and Christie.
Environmental conditions at the main ponds at sunset:
Air temperature = 84.7 deg F
Water temperature = 83.5 deg F
Sky = no/few clouds
Water level = much below average
Relative humidity = 46 %

Ingresado el 22 de septiembre de 2022 por k_mccormack k_mccormack | 3 observaciones | 0 comentarios | Deja un comentario

28 de agosto de 2022

Berry Springs Preserve Herps of Texas report, 23Aug2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Five amphibian species were observed in and along the edge of Berry Creek: Rio Grande Leopard Frog (CI = 1), Blanchard's Cricket Frog (CI = 2), Gulf Coast Toad (CI = 2), Western Narrowmouth Toad (CI = 1), and Green Treefrog (CI = 2). Audio recordings were obtained for two species (Gulf Coast Toad and Green Treefrog), and Gulf Coast Toad was also documented with photos. Another participant also obtained at least one audio recording of Blanchard's Cricket Frog.
After several months of no rainfall, according to the USGS gauge station at Berry Creek at Airport Road near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been 1.95 inches of rain the day before monitoring, and a total of 4.23 inches of rain within the previous five days before monitoring. Ponds and sloughs were dry, but Berry Creek was flowing with muddy runoff water.
The monitoring period was 20:10 - 21:10.
Participants were Kathy and Amy.
Environmental conditions at the main ponds 20 minutes after sunset:
Air temperature = 82.0 deg F
Water temperature = N/A
Sky = mostly cloudy
Water level = much below average
Relative humidity = 62 %

Ingresado el 28 de agosto de 2022 por k_mccormack k_mccormack | 2 observaciones | 1 comentario | Deja un comentario

19 de julio de 2022

Berry Springs Preserve Herps of Texas report, 18Jul2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Three amphibian species were observed in and along the edge of Berry Creek: Rio Grande Leopard Frog (CI = 0), Blanchard's Cricket Frog (CI = 3), and Green Treefrog (CI = 3). The Rio Grande Leopard Frog was seen along the edge of Berry Creek below the boardwalk, but no photos or audio recordings were obtained. Audio recordings were obtained for the other two species calling from an isolated pool in the creek below the dam.
According to the USGS gauge station at Berry Creek at Airport Road near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been 0.49 inches of rain three weeks before the monitoring session. The sloughs were dry, only a large puddle was at the bottom of the main pond, and there were only isolated pools in Berry Creek.
Photos were also obtained of a young armadillo that was scuffling through the leaf litter under and near the boardwalk.
The monitoring period was 20:35 - 21:35.
Participants were Kathy and Christie.
Environmental conditions at the main ponds at sunset:
Air temperature = 91.6 deg F
Water temperature = N/A
Sky = no/few clouds
Water level = much below average
Relative humidity = 31 %

Ingresado el 19 de julio de 2022 por k_mccormack k_mccormack | 3 observaciones | 0 comentarios | Deja un comentario

21 de junio de 2022

Berry Springs Preserve Herps of Texas report, 20Jun2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Four amphibian species were observed in the main ponds, Berry Creek, and the trails: Rio Grande Leopard Frog (CI = 1), Blanchard's Cricket Frog (CI = 2), Green Treefrog (CI = 3), and Gulf Coast Toad (CI = 0). Photos were obtained for Gulf Coast Toad, and audio recordings were obtained for the other three species.
According to the USGS gauge station at the South Fork of the San Gabriel River at Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08104900&PARAmeter_cd=00045), there had been 0.78 inches of rain 3.5 weeks before the monitoring session. The sloughs were dry, and the water level in the main ponds was down significantly since last month - no water was flowing over the dam. The water level in Berry Creek was low, but still flowing.
The monitoring period was 20:35 - 21:35.
Participants were Kathy, Christie, Carolyn, Randy, and Sandra.
Environmental conditions at the main ponds at sunset:
Air temperature = 87.8 deg F
Water temperature = 79.6 deg F
Sky = no/few clouds
Water level = much below average
Relative humidity = 39 %

Ingresado el 21 de junio de 2022 por k_mccormack k_mccormack | 4 observaciones | 0 comentarios | Deja un comentario

17 de mayo de 2022

Berry Springs Preserve Herps of Texas report, 07May2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Five amphibian species were observed in the main ponds and Berry Creek: Rio Grande Leopard Frog (CI = 2), Blanchard's Cricket Frog (CI = 3),Green Treefrog (CI = 2), Gulf Coast Toad (CI = 1), and American Bullfrog (CI = 1). Photos were obtained for Rio Grande Leopard Frog and Gulf Coast Toad, and audio recordings were obtained for all five species.
According to the USGS gauge station at the South Fork of the San Gabriel River at Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08104900&PARAmeter_cd=00045), there had been one inch of rain two days before the monitoring session.
The monitoring period was 20:15 - 21:30.
Participants were Kathy, Amy, Christie, and Carolyn.
Environmental conditions at the main ponds at sunset:
Air temperature = 83.8 deg F
Water temperature = 81.0 deg F
Sky = no/few clouds
Water level = below average
Relative humidity = 55 %

Ingresado el 17 de mayo de 2022 por k_mccormack k_mccormack | 5 observaciones | 0 comentarios | Deja un comentario

20 de abril de 2022

Berry Springs Preserve Herps of Texas report, 18Apr2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve again this month.
Three amphibian species were observed in the main ponds and the ditch in the pecan orchard: Rio Grande Leopard Frog (CI = 3), Blanchard's Cricket Frog (CI = 3), and American Bullfrog (CI = 2). Photos were obtained for only American Bullfrog, but audio recordings were obtained for all three species.
According to the USGS gauge station at Berry Creek at Airport Rd near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been only 0.83 inches of rain since last month's monitoring session.
The monitoring period was 20:00 - 21:00.
Participants were Kathy, Amy, Christie, and Carolyn.
Environmental conditions at the main ponds at sunset:
Air temperature = 66.7 deg F
Water temperature = 76.1 deg F
Sky = no/few clouds
Water level = below average
Relative humidity = 41 %

Ingresado el 20 de abril de 2022 por k_mccormack k_mccormack | 3 observaciones | 0 comentarios | Deja un comentario

20 de marzo de 2022

Berry Springs Preserve Herps of Texas report, 16Mar2022

In spite of the ongoing COVID-19 pandemic, there was a small group outing to Berry Springs Park and Preserve this month for the first time in two years. However, everyone wore masks and mostly social distanced while checking on the amphibians.
Three amphibian species were observed in the main ponds: Rio Grande Leopard Frog (CI = 2), Blanchard's Cricket Frog (CI = 2), and American Bullfrog (CI = 1). Photos were obtained for only Rio Grande Leopard Frog. Audio recordings were obtained for Rio Grande Leopard Frog and Blanchard's Cricket Frog, but not for American Bullfrog.
According to the USGS gauge station at Berry Creek at Airport Rd near Georgetown, TX (https://waterdata.usgs.gov/tx/nwis/uv/?site_no=08105095&PARAmeter_cd=00045), there had been no rain since last month's monitoring session (i.e., seven weeks with no rain). Temperatures were in the mid-80s the day of monitoring.
The monitoring period was 19:40 - 20:40.
Participants were Kathy, Amy, Christie, and Carolyn.
Environmental conditions at the main ponds at sunset:
Air temperature = 68.9 deg F
Water temperature = 69.9 deg F
Sky = no/few clouds
Water level = below average
Relative humidity = 27 %

Ingresado el 20 de marzo de 2022 por k_mccormack k_mccormack | 2 observaciones | 0 comentarios | Deja un comentario