26 de marzo de 2024

Mar 26 Update - Dragons have arrived

Here we go!

Mar 25 goes down as our first photos of Common Green Darner in Ohio. The day was warm with strong southern breeze.

iNat Observations include Montgomery, Hamilton, and Greene Counties. Yay.

Also, note iNat observations on Stream Cruiser, Blue Corporal, and Springtime Darner in Kentucky. These will soon begin to emerge in Ohio.

Check the Ohio Odonata Society web for details on and and flight for the species.

https://www.ohioodonatasociety.org/distribution-maps

Publicado el marzo 26, 2024 03:39 TARDE por jimlem jimlem | 0 comentarios | Deja un comentario

12 de marzo de 2024

Mar 12 - Odonata Flying Soon

Newly emerged Common Green Darners (Anax junius) are being reported in southern states. Variegated Meadowhawks (Sympetrum corruptum) in good numbers now in Texas. The first Fragile Forktail (Ischnura posita) was recently reported in Tennessee. So it won't be long until we have adult Odonata in Ohio.

We're past our early Common Green Darner date, which was Mar 6. Today, Mar 12, is our early date on Variegated Meadowhawk. The early Ohio date on Fragile Forktail is Mar 20. Our other March flier is Swamp Darner (Epiaeschna heros), with an early date of Mar 29.

Other early flight dates can be reviewed on the Ohio Odonata Society web site at:
https://www.ohioodonatasociety.org/species-flight-range-by-early-date

I would note that our 2023 early observations were on Apr 3&4 with Common Green Darners and Variegated Meadowhawks.

Also, current wind patterns look good for pushing Dragons from Texas.

Publicado el marzo 12, 2024 02:05 TARDE por jimlem jimlem | 2 comentarios | Deja un comentario

07 de marzo de 2024

Mar 7

This is the next step on thinking about our survey. Based on input, here is a new plot of observation and species data.

First individual days.

The dataset is all days from 2017-2023, Mar-Nov. 1,470 datapoints. The x axis is the number of observations on a day divided by the number of observers. The y axis is the percent of species recorded of the possible species maximum for the three distinct day periods for a month.

Relatively linear to start, up to about 8 observations/observer/day. This gets us half of the possible species.

Now a composite by calendar day. 246 datapoints - days with data summed across the 7 recent years.

Numbers are pretty scattered on the low end of observations, but close the gap at the upper right.

Publicado el marzo 7, 2024 07:50 TARDE por jimlem jimlem | 1 comentario | Deja un comentario

02 de marzo de 2024

Mar 2

Now into March! Our earliest flying Odonata are recorded in March. Data indicate 34 adults, mostly Common Green Darner (27), then Variegated Meadowhawk (4), Fragile Forktail (2), Swamp Darner (1).

Watch the weather for south wind stormfronts that bring us the first wave of CGD. You can also anticipate by looking at iNat observations for states to the south (KY, TN, AL).

Here's the map. Darker counties are most recent (2017-2022). Note there were zero March observations in 2023.

Publicado el marzo 2, 2024 03:31 TARDE por jimlem jimlem | 0 comentarios | Deja un comentario

27 de febrero de 2024

Feb 26 - days and numbers

Still thinking about survey and the number of observations to represent species. A different look is to start with individual days and plot number of species against number of observations on those individual days. Using recent years data (2021-2023), for our busier months (Apr-Sep), this is 524 days. There is data for every day for all three year in Jun-Sep, some missing days in Apr-May. Here's the chart:

The dots are color coded: Blue is Apr-May, Green is Jun-Jul, Orange is Aug-Sep. Remember that this is the same number of days (183) for Jun-Jul and Aug-Sep. Slightly less for Apr-May (158).

As expected, Jun-Jul show the highest numbers. Good diversity on the wing and people looking.

Apr-May is clustered on the lower left. While not much to see early on, there are some higher numbers in late May.

Aug-Sep is clustered generally higher than Apr-May, but well below Jun-Jul. No days above 50 species, even with higher numbers of observations.

Publicado el febrero 27, 2024 01:07 MAÑANA por jimlem jimlem | 4 comentarios | Deja un comentario

23 de febrero de 2024

Feb 23 - getting ready

Days are increasing in length. Spring flowers are off to an early start. Maybe a dragon soon? We're only a couple weeks away from our earliest Common Green Darner observation (March 6).

This got me thinking on what and when. As noted, CGD gets us started, then followed by Variegated Meadowhawk, Fragile Forktail, and Swamp Darner as possibilities in March. Check out the early flight date chart at https://www.ohioodonatasociety.org/species-flight-range-by-early-date

I updated the chart on observations and species count for our season intervals. This is based on all the data.

The peak for both occur in the last 10 days of June - the scales here are adjusted to match the peaks. Interesting that our species count generally outpaces our observations in this charting. I think it holds that the more observations we make, the more species we will see, but there's some wiggle room here. Things ramp up quickly starting in late April, then species hold on a little better in late September.

Publicado el febrero 23, 2024 07:53 TARDE por jimlem jimlem | 1 comentario | Deja un comentario

13 de febrero de 2024

February 13

In review, 2023 had some interesting day numbers - which led to thinking more generally about the season and the data.

The number that started it was 721. This is the number of observations identified to species on 7/14/2023. This is the highest one day total (ever) in the data, ahead of the 696 from 6/25/2022. We also had a good day on 6/17/2023 with 693 observations. These "days" have more records than most historical "years", and any year prior to 1959 (which had 1014 observations).

We had three days in 2023 with observations in 40 different counties: 6/25; 7/14; and 7/16. High county days for earlier years were a peak of 44 counties on 7/8/2019, and three days for 42 counties: 6/21/2019; 7/14/2019; and 6/19/2022. We have to go back to 6/11/2016 to find the highest county number prior to the recent survey years (2017-2023) - this day had 17 counties and ranks as #659.

The 2023 day with the most observers was 7/16 with 75 different users. This is behind earlier year highs of 86 observers on 6/12/2021 and 80 on 7/13/2019.

One of the most remarkable numbers for 2023 was 75 species recorded on 6/4. 6/3/2023 was close with 68 species. These two days combined had 84 users recording 1012 observations covering 81 species. These species counts (75, 68, 81) represent half or more of the annual species totals.

Blue Dasher had the high one day observations on 7/14/2023 with 76. This number trails Eastern Forktail on 5/29/2022 with 112, and Eastern Pondhawk on 8/13/2022 with 103.

Widow Skimmer had the most counties in a day for 2023 with 21 on 7/14. Earlier highs are Blue Dasher in 2019 with 25 counties on 7/13 and 24 counties on 7/14.

Widow Skimmer on 7/14/2023 was also the high for number of observers for a species in a day with 27. This also lags the Blue Dasher on 7/13/2019 where 35 people recorded observations.

For individual users on individual days:
monicap273 recorded 229 observations on 6/3/2023
lisaclairemiller recorded 55 Blue Dashers on 8/8/2023
jimlem recorded 34 species on 7/27/2023

Five days had users with observations in 5 counties:
6/21/2023 - monicap273 (Hancock, Huron, Lorain, Sandusky, Seneca)
6/25/2023 - monicap273 (Columbiana, Harrison, Holmes, Jefferson, Tuscarawas)
6/26/2023 - dmcshaffrey (Carroll, Guernsey, Noble, Stark, Washington)
9/3/2023 - jimlem (Allen, Defiance, Logan, Paulding, Van Wert)
9/20/2023 - jimlem (Auglaize, Champaign, Mercer, Shelby Van Wert)

Publicado el febrero 13, 2024 08:09 TARDE por jimlem jimlem | 5 comentarios | Deja un comentario

08 de febrero de 2024

Early February

Following up on a post from a year ago: 'How are we doing with our survey effort?' From the data, let's look again at the combinations of county and species. With the 2023 data, we have 6,806 combinations of the 88 Ohio counties and the possible species. This number grows as County Records are established. We can compare this cumulative number to individual years, or now that we have 7 years of survey data, a multi-year accumulation. The chart shows the most recent years. In orange is cumulative co|sp value - as theoretical maximum growing year by year (scale is on the left). The blue line is the 1 year % value (right scale) of the max. The green line is the percent of the theoretical max accounted for in the 7 year running accumulation (scale is on the right). Note that prior to the start of the statewide survey, the percent yearly observed was in single digits, even with 7 year data, the % was only in the 20% range.. We are now over 80% - meaning a significant majority of the documented co|sp pairs are being recorded. This helps answer the question - we are doing better, and overall, pretty good.

Comparing pre-1950 data to Survey II (2017-2023), Survey II had 4129 Co|Sp combinations not recorded through 1950. Pre-1950 had 473 not in Survey II. What stands out as missing?

By species.
Rainbow Bluet in 21 Counties.
Lyre-tipped Spreadwing in 20 Counties.
Ruby Meadowhawk in 18 Counties.
White-faced Meadowhawk 14 Counties.

A partial explanation could be habitat loss through various means. Ruby Meadowhawk just needs more/better photos.

By County.
Ashland Co is short 37 species.
Defiance, 27 species.
Erie, 27 species.
Ottawa, 25 species.
Paulding, 35 species.
Williams, 33 species.

All of these deficits are probably due to decreased attention. These would be opportunities.

Publicado el febrero 8, 2024 01:14 MAÑANA por jimlem jimlem | 1 comentario | Deja un comentario

19 de enero de 2024

Jan 19 - 2023 County Records

Here are the new County Records for 2023.

There are several instances of people sharing the County Record where submission were made on the same day.

Altogether, there are 133 new Species/County combinations.

Species County Date User
Amber-winged Spreadwing Jackson 6/30/2023 jimlem
Amber-winged Spreadwing Morrow 6/7/2023 lmillerua
Amber-winged Spreadwing Morrow 6/7/2023 lisaclairemiller
Arrow Clubtail Clermont 7/1/2023 dtibbetts
Arrow Clubtail Harrison 10/3/2023 quddy
Aurora Damsel Athens 5/27/2023 monicap273
Aurora Damsel Richland 6/15/2023 glotz
Band-winged Meadowhawk Clermont 8/13/2023 patosterhaus
Black-shouldered Spinyleg Knox 7/14/2023 lmillerua
Black-shouldered Spinyleg Knox 7/14/2023 lisaclairemiller
Blue-faced Meadowhawk Madison 9/18/2023 lisaclairemiller
Blue-faced Meadowhawk Madison 9/18/2023 lmillerua
Blue-faced Meadowhawk Van Wert 8/29/2023 jimlem
Boreal Bluet Ashtabula 5/24/2023 laureldoc
Carolina Saddlebags Henry 7/27/2023 jimlem
Citrine Forktail Columbiana 5/29/2023 jimlem
Clamp-tipped Emerald Scioto 9/23/2023 lisaclairemiller
Clamp-tipped Emerald Scioto 9/23/2023 sandykeller
Cobra Clubtail Columbiana 6/3/2023 jsemroc
Cobra Clubtail Columbiana 6/3/2023 quddy
Common Baskettail Auglaize 5/24/2023 jimlem
Common Baskettail Brown 5/17/2023 rasamoto
Common Baskettail Morrow 5/27/2023 lisaclairemiller
Common Baskettail Morrow 5/27/2023 lmillerua
Common Baskettail Union 5/26/2023 jimlem
Cyrano Darner Butler 6/5/2023 dmmeyers
Cyrano Darner Clinton 6/17/2023 rasamoto
Cyrano Darner Coshocton 6/14/2023 jheiser
Cyrano Darner Licking 7/9/2023 bimhoff07
Cyrano Darner Tuscarawas 7/14/2023 monicap273
Dot-tailed Whiteface Gallia 6/3/2023 monicap273
Dot-tailed Whiteface Coshocton 5/18/2023 jheiser
Dragonhunter Ross 6/6/2023 jhoward
Eastern Least Clubtail Wayne 6/4/2023 jsemroc
Eastern Red Damsel Guernsey 7/16/2023 jspaulding
Eastern Red Damsel Perry 6/10/2023 ninaharfmann
Eastern Ringtail Clermont 7/12/2023 dtibbetts
Eastern Ringtail Greene 8/13/2023 smwhite
Elegant Spreadwing Brown 5/17/2023 rasamoto
Elegant Spreadwing Crawford 6/17/2023 jimlem
Elegant Spreadwing Marion 7/24/2023 lisaclairemiller
Elegant Spreadwing Union 6/24/2023 lmillerua
Elegant Spreadwing Union 6/24/2023 lisaclairemiller
Emerald Spreadwing Marion 5/21/2023 chelsealynne
Emerald Spreadwing Van Wert 6/4/2023 jimlem
Four-spotted Skimmer Allen 6/16/2023 curtis7954
Four-spotted Skimmer Champaign 6/21/2023 jimlem
Four-spotted Skimmer Clark 6/21/2023 terrinorris
Four-spotted Skimmer Clark 6/21/2023 jimlem
Four-spotted Skimmer Clark 6/21/2023 lisaclairemiller
Four-spotted Skimmer Clark 6/21/2023 lmillerua
Four-spotted Skimmer Crawford 6/17/2023 whateverwatcher
Four-spotted Skimmer Crawford 6/17/2023 trj
Four-spotted Skimmer Cuyahoga 6/18/2023 martycalabrese
Four-spotted Skimmer Darke 6/20/2023 coachwhipbooks
Four-spotted Skimmer Defiance 6/24/2023 rjacob
Four-spotted Skimmer Fulton 6/21/2023 ricknirschl
Four-spotted Skimmer Greene 6/18/2023 smwhite
Four-spotted Skimmer Hancock 6/18/2023 srmyers
Four-spotted Skimmer Huron 6/21/2023 monicap273
Four-spotted Skimmer Huron 6/21/2023 dmcshaffrey
Four-spotted Skimmer Lorain 6/17/2023 dmcshaffrey
Four-spotted Skimmer Mahoning 6/21/2023 lewarren
Four-spotted Skimmer Medina 6/18/2023 laureldoc
Four-spotted Skimmer Medina 6/18/2023 dhochadel
Four-spotted Skimmer Medina 6/18/2023 sallypsandpiper
Four-spotted Skimmer Medina 6/18/2023 camelcreek
Four-spotted Skimmer Medina 6/18/2023 shelleytender
Four-spotted Skimmer Medina 6/18/2023 naturalistnat
Four-spotted Skimmer Miami 6/17/2023 dillonmr
Four-spotted Skimmer Montgomery 6/17/2023 dlgbio
Four-spotted Skimmer Morrow 6/18/2023 whateverwatcher
Four-spotted Skimmer Ottawa 6/17/2023 jasminecupp
Four-spotted Skimmer Richland 6/17/2023 dmcshaffrey
Four-spotted Skimmer Sandusky 6/21/2023 monicap273
Four-spotted Skimmer Trumbull 6/19/2023 dhochadel
Four-spotted Skimmer Warren 6/18/2023 smwhite
Four-spotted Skimmer Wayne 6/19/2023 mkgilger
Gray Petaltail Medina 6/15/2023 ken_ohio
Great Spreadwing Allen 9/12/2023 dhodge
Great Spreadwing Logan 7/31/2023 caerwin
Great Spreadwing Miami 9/11/2023 jimlem
Great Spreadwing Van Wert 9/10/2023 jorgevargasramirez
Jade Clubtail Van Wert 7/25/2023 jimlem
Lancet Clubtail Mercer 5/24/2023 jimlem
Lancet Clubtail Shelby 5/24/2023 jimlem
Lilypad Clubtail Ashtabula 6/5/2023 roamingthewoods
Lilypad Forktail Carroll 7/24/2023 spidi
Lilypad Forktail Columbiana 9/15/2023 monicap273
Lilypad Forktail Gallia 6/16/2023 monicap273
Lyre-tipped Spreadwing Shelby 6/28/2023 jimlem
Lyre-tipped Spreadwing Wyandot 6/24/2023 chelsealynne
Macromia Hybrid Henry 8/20/2023 rickbarricklow
Macromia Hybrid Henry 8/20/2023 sallypsandpiper
Midland Clubtail Guernsey 6/26/2023 dmcshaffrey
Midland Clubtail Trumbull 6/9/2023 quddy
Northern Spreadwing Mercer 5/24/2023 jimlem
Plains Clubtail Summit 6/4/2023 quddy
Plains Clubtail Summit 6/4/2023 jsemroc
Powdered Dancer Perry 6/10/2023 ninaharfmann
Pronghorn Clubtail Henry 6/24/2023 rjacob
Pronghorn Clubtail Perry 5/31/2023 ninaharfmann
Rainbow Bluet Holmes 7/18/2023 benniesaylor
Rambur's Forktail Franklin 9/21/2023 jheiser
Red Saddlebags Harrison 9/23/2023 quddy
Red Saddlebags Henry 7/27/2023 jimlem
Red Saddlebags Wood 10/11/2023 haroldbrown712
River Bluet Seneca 6/2/2023 srmyers
Royal River Cruiser Huron 7/8/2023 spaghettiw0lf
Sedge Sprite Montgomery 6/18/2023 dillonmr
Shadow Darner Van Wert 9/20/2023 jimlem
Shadow Darner Warren 7/24/2023 logan_bornemann
Southern Spreadwing Clermont 4/11/2023 dmmeyers
Spatterdock Darner Gallia 6/3/2023 monicap273
Sphagnum Sprite Perry 6/15/2023 ninaharfmann
Spot-winged Glider Fairfield 7/29/2023 rcurtis
Spot-winged Glider Henry 7/27/2023 jimlem
Spot-winged Glider Union 7/5/2023 darth_schrader
Spotted Spreadwing Jefferson 8/20/2023 gcasp60
Spotted Spreadwing Van Wert 9/20/2023 jimlem
Springtime Darner Perry 5/8/2023 jimlem
Stream Cruiser Muskingum 5/8/2023 jimlem
Swamp Darner Hardin 5/26/2023 jimlem
Swamp Darner Pickaway 4/20/2023 turtlerunner
Swamp Darner Warren 6/5/2023 spelikan
Swamp Spreadwing Morgan 6/9/2023 monicap273
Swamp Spreadwing Muskingum 7/14/2023 kent_miller
Swamp Spreadwing Union 6/24/2023 lmillerua
Sweetflag Spreadwing Hardin 8/1/2023 jimlem
Sweetflag Spreadwing Jefferson 8/3/2023 gcasp60
Sweetflag Spreadwing Mercer 5/24/2023 jimlem
Swift Setwing Pickaway 8/11/2023 lisaclairemiller
Swift Setwing Pickaway 8/11/2023 lmillerua
Tule Bluet Clinton 7/16/2023 mikeabel
Turquoise Bluet Athens 5/27/2023 monicap273
Turquoise Bluet Brown 5/17/2023 rasamoto
Turquoise Bluet Huron 6/27/2023 carolr
Turquoise Bluet Meigs 5/27/2023 monicap273
Turquoise Bluet Paulding 6/4/2023 jimlem
Turquoise Bluet Shelby 6/10/2023 jimlem
Twin-spotted Spiketail Wayne 6/4/2023 quddy
Unicorn Clubtail Ottawa 6/21/2023 rjacob
Unicorn Clubtail Union 5/26/2023 jimlem
Variegated Meadowhawk Pike 6/9/2023 jimlem
Variegated Meadowhawk Washington 5/10/2023 dmcshaffrey
Vesper Bluet Athens 5/27/2023 monicap273
Vesper Bluet Auglaize 6/25/2023 jimlem
Vesper Bluet Belmont 9/22/2023 monicap273
Vesper Bluet Fulton 7/16/2023 rboudouris
Vesper Bluet Gallia 6/28/2023 shaunpogacnik95
Vesper Bluet Meigs 5/27/2023 monicap273
Vesper Bluet Morgan 6/9/2023 monicap273
Vesper Bluet Trumbull 6/6/2023 sallypsandpiper
Publicado el enero 19, 2024 04:11 TARDE por jimlem jimlem | 2 comentarios | Deja un comentario

15 de enero de 2024

Jan 15 - A New Ohio Odonata Society Web Site

The Ohio Odonata Society has a new web site.

The url is www.ohioodonatasociety.org

This is OOS’ 3rd generation of an online presence, the 1st was at Marietta College, the 2nd was at u.osu.

Many hours of discussion and tech-work have gone into this new web site, primarily by OOS volunteers Jay Heiser and Jim Lemon.

The new web site has much of the County and Species reporting that for the last few years was distributed in the Dragon Flyer Newsletter. The newsletters are also archived on the site.

As with all websites, there is still work to be done, and you can help. We are especially interested in County-level descriptions of local wetlands. Please take a look, especially at Coshocton (where Jay has a wetland property) as an example.

Let us know what you think. Any mistakes are ours - we will correct as needed. Also comment on ideas you might like to see.

jimlem and jheiser

Publicado el enero 15, 2024 01:01 TARDE por jimlem jimlem | 3 comentarios | Deja un comentario