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Photo © Mike Good, some rights reserved
Allegheny, US-PA, US, NA
Public coordinates obscured by 10KM

Description

Found by Applied Ecological Sciences on the shoreline of Sycamore Island in May 2008

Mar. 12, 2012 15:11:55 -0400
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Comments & Identifications

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three-horn wartyback - Photo (c) USFWSmidwest, some rights reserved (CC BY)
mike2's ID: three-horn wartyback (Obliquaria reflexa)
Posted by mike2 over 2 years ago (Flag)
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Obliquaria reflexa is considered extirpated in PA, and this looks like a fresh shell. I'll ask a malacologist to look at this photo.

Posted by pete_woods over 2 years ago (Flag)
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three-horn wartyback - Photo (c) USFWSmidwest, some rights reserved (CC BY)
pete_woods's ID: three-horn wartyback (Obliquaria reflexa)
Posted by pete_woods over 2 years ago (Flag)
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Beth Meyer, a malacologist for the PA Natural Heritage Program, has confirmed this identification. She had heard of your record, but had not seen the photos. I would say you've rediscovered this species in PA! The shell looks so fresh that I assume it was recently alive, but it is hard to be certain, and I will defer to the malacologists on whether this counts as an extant population. Were there any soft tissues in the shell when you found it? And was this the only one? I have also heard a rumor that this species was found recently at the Ohio River Islands National Wildlife Refuge.

Where is the shell now? This is an important specimen, so I would like to see it deposited in a museum. The Carnegie Museum of Natural History has a great malacology collection, and would be a good place for this specimen to go.

This is also the first PA rare species record that I have gleaned on iNaturalist, proving the value of this website for gathering conservation data.

Posted by pete_woods over 2 years ago (Flag)
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Pete, I'm in love with this application. We are in the process of installing some interpretive signs on Sycamore Island, and plan to post the link to the website and application directly onto them.

Could I get your e-mail? or a better way to contact you, I'm stewardship@alleghenylandtrust.org we'll be in touch.

Typing directly from our management report, the specimen was observed between August 17- September 9, 2010, by Applied Ecological Services, inc. In that time span 19 shells were observed and they reported:

"Not only were relatively fresh shells (paired) found on the island, they were located on seven different occasions over a full year, totaling 19 shells, suggesting an existing nearby population... More recent studies revealed threehorn wartyback just three mile north of Sycamore Island within the Allegheny River, suggesting the re-colonization/dispersal of this species from north to south within the river."

I also need to apologize for posting an incorrect date on my original observation. I didn't realize that they had given us a specific date in their report.

Posted by mike2 over 2 years ago (Flag)
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three-horn wartyback - Photo (c) USFWSmidwest, some rights reserved (CC BY)
ctracey's ID: three-horn wartyback (Obliquaria reflexa)
Posted by ctracey about 1 month ago (Flag)
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Identification Summary

three-horn wartyback - Photo (c) USFWSmidwest, some rights reserved (CC BY)
mike2's ID: three-horn wartyback (Obliquaria reflexa)
CR
three-horn wartyback - Photo (c) USFWSmidwest, some rights reserved (CC BY)
Community ID: three-horn wartyback (Obliquaria reflexa)
CR
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pete_woods ctracey 2 people agree

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Data Quality Assessment

Community-supported ID? Yes
2 people agree
0 people disagree
Date? Yes
Georeferenced? Yes
Photos or sounds? Yes
Is the organism wild/naturalized? Unknown
What do you think?
Yes / No
Does the location seem accurate? Unknown
What do you think?
Yes / No
Does the date seem accurate? Unknown
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Observation © Mike Good
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