Powderhorn WMA Bioblitz: May 19-21

Our observations for the weekend.
Our observations in identify mode (including research grade).
Our observations in identify mode (needs ID only).
List of species observed sorted with least observed first.

Powderhorn Wildlife Management Area is on the coast between Port O'Connor and Indianola. View an iNaturalist map here.

Coordinates of entrance to the WMA: 28.434577644041553, -96.53424007243173

Google Map showing entrance, headquarters, and boundaries (WMA in yellow, State Park area in red). Unless I hear otherwise, we are restricted to the yellow WMA area.

Overnight, primitive camping is available on the WMA. There is electricity, water, ice machine, refrigerator, and bathrooms (but not showers). The gate (see location up at the top of this post) should be unlocked but please be sure to close the gate behind you. The building 1.6 miles down the road from the gate will be our headquarters. There are no shade trees in the vicinity of the headquarters, but the building has a shelter on the backside to provide relief from sun and rain and the building will be open in the event of a storm.

There are some locations near the WMA that folks may be interested in visiting on their way to or from the WMA. The location of Powderhorn and these other points of interest are shown in this map.

TPWD webpage

Posted on Φεβρουάριος 04, 2023 1030 ΜΜ by pfau_tarleton pfau_tarleton



Αναρτήθηκε από rymcdaniel 4 μήνες πριν (Αναφορά)

Can one stay for part of it? Friday and Saturday are my typical days off so I could come out for the 19th and 20th.

Αναρτήθηκε από brencero 4 μήνες πριν (Αναφορά)

Absolutely! Come and go as you please.

Αναρτήθηκε από bosqueaaron 4 μήνες πριν (Αναφορά)

Can I be lazy and just RSVP here instead of emailing you? I'll be your best friend...

Αναρτήθηκε από kimberlietx 4 μήνες πριν (Αναφορά)

Super excited about this! :)

Αναρτήθηκε από sambiology 4 μήνες πριν (Αναφορά)

You and me both, Sam!

Αναρτήθηκε από annikaml 4 μήνες πριν (Αναφορά)

I am officially signing up!

Αναρτήθηκε από bacchusrock 4 μήνες πριν (Αναφορά)

I'm excited! I will bring some cameras and audio devices. Hoping there is electricity somewhere for the MV light. Swamp rabbit has been found south of there in Aransas NWR seems like a possibility at Powderhorn. Car camping. Coffee drinking. Overall positivity! @sagaciousoctopus

Αναρτήθηκε από mikef451 4 μήνες πριν (Αναφορά)

I am planning to make it. Don't think I can take Friday off at the moment. So I will drive partway down on Friday night and then get there Saturday morning if that would be okay. At least that is my plan right now.

Αναρτήθηκε από brentano 4 μήνες πριν (Αναφορά)

Tagging a friend. @pufferchung

Αναρτήθηκε από mikef451 3 μήνες πριν (Αναφορά)
Αναρτήθηκε από kimberlietx 3 μήνες πριν (Αναφορά)

Sent email & hoping there's a spot still open!

Αναρτήθηκε από lulubelle 3 μήνες πριν (Αναφορά)

@prairie_rambler Tagging someone I hope can join us.

Αναρτήθηκε από connlindajo 2 μήνες πριν (Αναφορά)
Αναρτήθηκε από bosqueaaron 2 μήνες πριν (Αναφορά)

A few additional details: on site there is electricity, water, bathrooms (but not showers), and good roads.

Αναρτήθηκε από pfau_tarleton περίπου 2 μήνες πριν (Αναφορά)

Thanks for the update on information--will you send more out once it gets closer?

Αναρτήθηκε από oceanicwilderness περίπου 2 μήνες πριν (Αναφορά)

I'd say that I'm getting excited about Powderhorn...it's just around the corner...but don't want to jinx the weather. @sambiology, do we just drive in the gate like we own the place....or will we need to be let in?

Αναρτήθηκε από pfau_tarleton περίπου 1 μήνας πριν (Αναφορά)

Let me find out! :)

Αναρτήθηκε από sambiology περίπου 1 μήνας πριν (Αναφορά)

If anyone is acquainted with someone not on the attendees list, but might be interested, let me know and we'll invite them.

Αναρτήθηκε από pfau_tarleton περίπου 1 μήνας πριν (Αναφορά)

Russell, recently I communicated with @puffin21 about attending.

Αναρτήθηκε από mikef451 30 ημέρες πριν (Αναφορά)

I am tagging @jeffmci9 in case he is interested.

Αναρτήθηκε από connlindajo 25 ημέρες πριν (Αναφορά)

A training opportunity came up at work. Looks like I will only be out for Saturday (weather permitting. fingers crosse). What time does this shindig kick off and is there a meet up planned or where do we enter? I've only been out to Powderhorn once.

Αναρτήθηκε από brencero 24 ημέρες πριν (Αναφορά)

Unfortunately, I won't be able to be there.

Αναρτήθηκε από lulubelle 24 ημέρες πριν (Αναφορά)

Is anyone going and staying in Port Lavaca by any chance?

Αναρτήθηκε από bosqueaaron 24 ημέρες πριν (Αναφορά)

@bosqueaaron There's a chance my accommodations may change, but at the moment I'm booked to stay in PL. You can msg me :)

Αναρτήθηκε από kimberlietx 24 ημέρες πριν (Αναφορά)

I've got coordinates and a Google Maps link to the entrance gate up in the description (it's at the south end of 1289). @sambiology is still waiting to hear back from WMA staff about when we can start arriving. There's no kick off planned or official meet time...folks will be trickling in on their own schedules. I don't know yet where our "headquarters" will be (there are two buildings on-site), but @sambiology will be posting as soon as he finds out those details.

In the meantime, here's a TPWD video to watch:

Αναρτήθηκε από pfau_tarleton 24 ημέρες πριν (Αναφορά)


Αναρτήθηκε από centratex 21 ημέρες πριν (Αναφορά)

I'll be there! Excited!

Αναρτήθηκε από k8thegr8 20 ημέρες πριν (Αναφορά)

Updated information about facilities. There is electricity, water, ice machine, refrigerator, and bathrooms (but not showers). The gate (see location up at the top of this post) should be unlocked but please be sure to close the gate behind you. The building 1.6 miles down the road from the gate will be our headquarters. There are no shade trees in the vicinity of the headquarters, but the building has a shelter on the backside to provide relief from sun and rain and the building will be open in the event of a storm.

I don't know exactly when I'll arrive (sometime Friday around or after lunch). If you get there earlier than me, please leave some kind of documentation of your presence on the WMA (a note or something in the building).

Αναρτήθηκε από pfau_tarleton 20 ημέρες πριν (Αναφορά)

Thanks Russell. Are there any organized plans for mothing Fri or Sat nights?

Αναρτήθηκε από bosqueaaron 20 ημέρες πριν (Αναφορά)

@jeff_back I can't remember if I told you about this bioblitz.

Αναρτήθηκε από bosqueaaron 20 ημέρες πριν (Αναφορά)

@bosqueaaron: Absolutely nothing is organized! But electricity is at the headquarters, so folks needing a plug can set up there. Those with batteries can set up further afield if desired. For example, there's a very nice wooded area 1 mile further down the road that would be an excellent spot for battery setups.

Also, I just got word from the manager that we may be restricted from the State Park area. He provided a map which I added to the Google Map showing where that is (the red polygon). The yellow polygon is available in its entirety.

Αναρτήθηκε από pfau_tarleton 20 ημέρες πριν (Αναφορά)

Here's a map showing what appear to me to be the main roads on the WMA along with distance markers. I'll bring printouts of this map also.

Αναρτήθηκε από pfau_tarleton 18 ημέρες πριν (Αναφορά)

I am hoping to arrive between noon and 1pm. See you folks there!

Αναρτήθηκε από mikef451 18 ημέρες πριν (Αναφορά)

I'll probably be in around 6 or 7 pm on Friday

Αναρτήθηκε από bosqueaaron 18 ημέρες πριν (Αναφορά)

@chasingchickens and I will be there! But we will likely be arriving pretty late on Friday, like 8pm or later.

Αναρτήθηκε από wildcarrot 18 ημέρες πριν (Αναφορά)

I will probably arrive mid-afternoon Friday.

Αναρτήθηκε από annikaml 18 ημέρες πριν (Αναφορά)

I'm hoping for a mid-afternoon arrival on Friday, but it just depends on how distracted I get along the way. I'm known for stopping a LOT. Actually, I'm staying in Port Lavaca, so by the time I get to HQ it will be early evening I bet. Several of you have my phone number in case I don't show by dark!

Αναρτήθηκε από kimberlietx 18 ημέρες πριν (Αναφορά)

See you folks on Friday sometime in the afternoon. Should be an interesting and fun adventure.

The map was very helpful @pfau_tarleton but don't you usually mark distance between stars in light-years?

Αναρτήθηκε από jcochran706 18 ημέρες πριν (Αναφορά)

Will see you all there! Arriving Thursday afternoon to check out the scenery in the area. Hopefully GTWT Adopt-a-Loop sites.

Αναρτήθηκε από connlindajo 18 ημέρες πριν (Αναφορά)

I expect to show up Saturday morning.

Αναρτήθηκε από bacchusrock 17 ημέρες πριν (Αναφορά)

Likely showing up Friday around 8pm or so.

Αναρτήθηκε από knightericm 17 ημέρες πριν (Αναφορά)

For those of us who can't wait until tomorrow, here's an interesting paper about a disjunct population of Hemileuca peigleri in the Powderhorn area.

Αναρτήθηκε από bosqueaaron 17 ημέρες πριν (Αναφορά)

@pfau_tarleton I hope they give us permission for that red area on your map. Isoetes texana is in a pond in that area apparently.

Αναρτήθηκε από knightericm 17 ημέρες πριν (Αναφορά)

Well… My kids came down with a stomach bug, so I’m going to have to sit this one out. I hope the good weather forecast holds and that y’all see lots of amazing stuff!

Αναρτήθηκε από laurahaynes 17 ημέρες πριν (Αναφορά)

@knightericm, cool. I bet it occurs on the WMA also. Heres a link to paper describing it for those interested in this rare endemic plant. https://www.phytoneuron.net/PhytoN-Isoetestexana.pdf

Αναρτήθηκε από pfau_tarleton 16 ημέρες πριν (Αναφορά)

Excited to see some folks tomorrow and through the weekend!!! I'll probably be there at around 7 or so.

Also, here's a fun search -- look for the species that you've not seen from Calhoun County, TX (just replace "unobserved_by_user_id=sambiology" with your username instead of "sambiology"): https://www.inaturalist.org/observations?hrank=species&place_id=1766&subview=map&unobserved_by_user_id=sambiology&view=species

I'm really hoping to see this tiger beetle: https://www.inaturalist.org/taxa/120976-Habroscelimorpha-dorsalis

Αναρτήθηκε από sambiology 16 ημέρες πριν (Αναφορά)
Αναρτήθηκε από knightericm 16 ημέρες πριν (Αναφορά)

Have fun everyone. Looks like I am sitting this one out. Hope to see folks at one of the ones in the upcoming months.

Αναρτήθηκε από rymcdaniel 16 ημέρες πριν (Αναφορά)

Looks like @chasingchickens and I will be arriving much later tonight than expected - my day job got in the way of my fun - so we're going to find a hotel nearby and join y'all early in the morning Saturday!

Αναρτήθηκε από wildcarrot 16 ημέρες πριν (Αναφορά)

Be sure to sign release form in barn upon arrival.

Αναρτήθηκε από pfau_tarleton 16 ημέρες πριν (Αναφορά)

All participants will need to sign a liability form at the barn, about 1.6 miles inside the gate. Keep the front gate closed and latched.
Do not travel off the rock roads. It's very wet right now, do not travel off the roads and tear up secondary roads. Walking secondary roads is fine.
Keep all gates as you find them. If you open a gate close it behind you. We have cattle on the property.
Watch out for venomous snakes and alligators. Assume every body of water (including bar ditches) has an alligator in it.
Please keep the bathroom clean.
If you have any problems or questions, contact me at 361-205-1510

Powderhorn WMA Area Manager

Αναρτήθηκε από dpwalker 16 ημέρες πριν (Αναφορά)

I am having to back out. Hope to get to the next one. Enjoy and be safe.

Αναρτήθηκε από centratex 16 ημέρες πριν (Αναφορά)

Alas alas, I will not be able to make it. The AC went out in my truck and I need to get it fixed ASAP.

Αναρτήθηκε από brencero 15 ημέρες πριν (Αναφορά)

Hi Everyone! Hope you all made it back safe and sound from Powderhorn WMA. It was great seeing you all again. My best activities were bird and moth focused. There was a bit of a bird migration spurt while we where there, with many flycatchers coming in on Friday and Saturday, including dozens of Eastern Wood-Pewees. There were also some nice warblers in several places, including in the large live oak patch along the road near the bay in the State Park area by the white building. So much activity there on Saturday, absolutely alive with birds (flycatchers of several species, warblers, orioles, thrushes, Blue Grosbeaks, etc.). Today there, barely saw a pewee and had no warblers or other migrants. Thanks to Chuck's tip though, today I went over to the shell beach and lagoon area and had Ruddy Turnstone, Wilson's Plover, beautiful breeding-plumaged Dunlins, and some other sandpipers.

Many thanks to Russell and Sam for arranging this wonderful outing! See you next time.

Αναρτήθηκε από jcochran706 13 ημέρες πριν (Αναφορά)

So, the mosquitoes were memorable, but so was everything else! I had such a great time gathering with folks.

It'll take a while for everyone to get observations uploaded and ID'ed, no doubt, but I think we documented a LOT of biodiversity here.

Thanks to all involved!

Αναρτήθηκε από sambiology 13 ημέρες πριν (Αναφορά)

Mosquitos? What mosquitoes? I don't remember any mosquitoes.

It was interesting to see how the change in weather from Friday to Saturday changed the insect diversity on the sheets. Saturday night had so many more numbers and much more diversity.

Thanks Dan (@dpwalker) for allowing us this opportunity. We hope that our observations will contribute in some way to understanding the rich biodiversity of this place. The prairie off the road northeast from the barn had an amazing diversity of plants--particularly legumes. It will take a couple of weeks before all our observations are posted and identified. After that, I'll try to put together a summary of our observations.

Our observations for the weekend.
Our observations in identify mode (including research grade).
Our observations in identify mode (needs ID only).

Αναρτήθηκε από pfau_tarleton 13 ημέρες πριν (Αναφορά)

I want to thank everyone, especially Russell and Sam, for making another great bioblitz!

It will take me a lot of time to get my observations uploaded, but I know I saw a lot of new and to me interesting things at Powderhorn. My moth sheet is covered with eggs deposited by the flannel moths, I'm waiting to see if they will hatch. I also got the county to 106 bird species, so hurrah!
You all looked confused when I talked about Lucky Luke, the cartoon about American Old Wild West, so I looked it up and it was created by a Belgian guy and mainly distributed in Europe. So no shade on you all!

Αναρτήθηκε από annikaml 10 ημέρες πριν (Αναφορά)

I finished my uploads (whew! not bragging, really!) and we are now officially over 1000 species observed! Several of them are first records for Texas on iNat. And some of them are first records for iNat globally (including several of @mpintar's aquatic insects).

Αναρτήθηκε από pfau_tarleton 9 ημέρες πριν (Αναφορά)

I was very pleased to find a few species, particularly Belostoma confusum. I have maybe 5 other species that are not verified since I only found females. Also six species are possible actual new state records for Texas: Celina slossoni, Desmopachria leechi, Suphisellus puncticollis, Paracymus lodingi, Haliplus confluentus, and Peltodytes dietrichi. Although it is not surprising that any of them were found there.

Αναρτήθηκε από mpintar 6 ημέρες πριν (Αναφορά)

I uploaded all of my cell phone observations. Started going through the 1800 or so photos from my camera. And then my computer died. Finally back up and running today. So hopefully I can wade through all of them this week. As always really enjoyed seeing all the usual suspects and meeting some new folks. Never seems like enough time to fully explore an area.
Question: Is this a place that is regularly open to public or only by special invite? I would definitely like to get back there sometime.

Look forward to the next one.

Αναρτήθηκε από brentano 6 ημέρες πριν (Αναφορά)

@brentano I was thinking the same. As amazing as the mothing was, I was thinking that it would be great to do it again in the fall.

Αναρτήθηκε από bosqueaaron 5 ημέρες πριν (Αναφορά)

I arrived very early Friday and was stopped and told it is not open to the public, so you definitely need special permission.

Αναρτήθηκε από mpintar 5 ημέρες πριν (Αναφορά)

Both the WMA and SP are not open for daily visitation. Eventually the SP will be open for day use, camping, hiking... but that still could be a few years away. But we are available for scheduled organized groups to visit. Just contact me at daniel.walker@tpwd.texas.gov. Thanks!


Αναρτήθηκε από dpwalker 5 ημέρες πριν (Αναφορά)

Here's a list of species observed over the weekend, sorted by least commonly observed first. Almost half of the species we documented were only documented by one person.

List of species observed sorted with least observed first.

Click the "taxon obs count" link to access the observation(s) of each species.

Αναρτήθηκε από pfau_tarleton 4 ημέρες πριν (Αναφορά)

I am impressed that we only found one western honey bee!

Αναρτήθηκε από bacchusrock 4 ημέρες πριν (Αναφορά)

Let's do this again! Fantastic place and I upped my species count by 95. Thank you @sambiology @pfau_tarleton and @dpwalker for arranging this gathering. My only regrets.... I missed seeing some of the folks that attended and did not spend enough time with those that I did see. By the way, I finally finished uploading my observations for the trip yesterday.

Αναρτήθηκε από connlindajo 2 ημέρες πριν (Αναφορά)

Phew! Finally got all my observations uploaded. Looks like we almost doubled the amount of species documented on iNaturalist for Powderhorn WMA.

Αναρτήθηκε από annikaml περίπου 17 ώρες πριν (Αναφορά)

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