Boletim do projeto The Okanagana Citizen Science Project

21 de setembro de 2020

The End of a Season

It's the end of another Okanagana season and like everything else this year it's been a weird one. The rediscovery of Okanagana arctostaphylae after 105 years, 4 of the mysterious Bliven taxa randomly showing up in Eugene, Oregon, and fantastic finds from an O. catalina flying into someone's car before they left the island to hand raised O. arboraria. Other places that have been hopping in other years were practically devoid of Okanagana to our complete bafflement but had other genera in abundance.

Jeff and I will now be able to start molecular work in February thanks to the huge number of taxa collected by the folks here on iNaturalist. You have all helped fill in major gaps, many of which we though would never be filled. The last few are some highly targeted species that require going to very specific areas in hopes of finding them.

Tomorrow the last two mailers make their way back to me and I can get a good look at the last two sets of cicadas that were collected. One includes the quite uncommon Okanagana gibbera.

A big thanks to all of you!

Publicado em 21 de setembro de 2020, 11:30 MANHÃ por willc-t willc-t | 0 comentários | Deixar um comentário

27 de agosto de 2020

First paper on Okanagana using iNaturalist data

At the end of September a paper I wrote over the last year will be published.

Chatfield-Taylor, W. 2020. Predator avoidance leads to separate emergence cycles in the protoperiodical Okanagana magnifica Davis, 1919 (Hemiptera: Cicadidae). Pan-Pacific Entomologist 96(3) (In Press).

This work made huge use of the GBIF data that is taken from iNaturalist to map the emergences of Okanagana magnifica around which the paper's analysis was based, something that would have been made far more difficult without the data found here - there are nearly 100 observations of this species now!

Once it is released I'll make another post going into more detail about the paper and its premise, as well as how iNaturalist played its part.

Publicado em 27 de agosto de 2020, 12:34 MANHÃ por willc-t willc-t | 2 comentários | Deixar um comentário

14 de agosto de 2020

The Bliven Conundrum

In 1964 an entomologist name Bliven published a paper describing 6 new species of Okanagana "endemic" to California". Holotypes and a couple paratypes of each were deposited, and then the species were promptly forgotten about as nobody else had ever seen them.
O. rhadine
O. orithya
O. pernix
O. sequoiae

O. salicicola
O. vocalis

Cut to 53 years later when a chance discovery led us to believe that maybe Bliven was not quite as... off... as he had seemed: One of the species was rediscovered. The details on that are currently private, but it gave rise to the obvious question: if one, why no the rest. That brings us to 2020, when @birdernaturalist found this individual while helping collect cicadas:
https://www.inaturalist.org/observations/55435090 An individual that is quite likely O. sequoiae! Further examination will be necessary to confirm it. However, this is from Eugene, OR, not northern California, and as though the very dim bulb that lives in my head went on for a change, it occurred to me to ask "what if he just badly mistook the range of his species?". Rather than endemic to northern California, what if that was the southern part of the range of a mostly Oregon group of species.

This led to a quest. Was another Bliven species already on iNaturalist just waiting to be identified. As it turns out, it was. @umpquamatt photographed this individual of Okanagana rhadine 3 years ago.

https://www.inaturalist.org/observations/7247167

And as though the cosmic cicada forces came together, yesterday a friend in Eugene collected one! Now 3 were down, and there were 3 to go. When will they appear I don't know, but I no longer doubt that they will!

Publicado em 14 de agosto de 2020, 02:02 MANHÃ por willc-t willc-t | 4 comentários | Deixar um comentário

06 de agosto de 2020

Contributors Continued

It's been a great season so far with many people contributing specimens to the project

The two stand-out finds of the season are from @easmeds who is part of our research team and went out and found Okanagana arctostaphylae after a sighting was posted on iNaturalist

On the other side of the continent @jamiehunter found O. noveboracensis (another incredibly rare Okanagana) in Ontario where it is restricted to a small area around the Niagara region.

Other contributions and contributors since my last update!

O. canadensis @fmgee
O. canescens (tentative) @alice_abela
O. catalina (a major find) @emshaph
O. occidentalis @fmgee
O. tristis @alice_abela
O. vanduzeei (?) @birdernaturalist
And more great unknowns: @mnishiguchi @birdernaturalist

Publicado em 06 de agosto de 2020, 12:43 MANHÃ por willc-t willc-t | 0 comentários | Deixar um comentário

01 de agosto de 2020

The curious case of Okanagana arctostaphylae

It started with a post. https://www.inaturalist.org/observations/53902805
Innocent enough; a red cicada on white netting. Except it really wasn't. This was Okanagana arctostaphylae and it was the first time it had been seen since it was described by Van Duzee in 1915, 105 years ago. The question then became, were there more? @easmeds set out to find them and find them he did!

https://www.inaturalist.org/observations/54571493

That they had remained undiscovered for so long is in part a testament to their superior camouflage and in part to people not looking for them. Part of that was due to it having been so long since they were seen, but it highlights the importance of always keeping an open mind and an open eye.

Thanks to the specimens taken we now have a DNA sample to figure out what the evolutionary relationship of O. arctostaphylae is. Is it really related to O. opacipennis like Davis thought when he described the latter as a subspecies in 1926? Or is it something else entirely?

Publicado em 01 de agosto de 2020, 11:27 TARDE por willc-t willc-t | 2 comentários | Deixar um comentário

15 de julho de 2020

Type Localities - Why They are Important

Every species described was first described from a specimen collected at a specific location - the Type Locality. This specimen is known as the Holotype. Over the years some Holotypes are lost and with them their collecting data, including the type location, or it was never recorded. But by and large this information is known. Just as the Holotype is the individual that represents the entire species, the Type Locality is the place where a scientist knows a specimen collected is in fact the species as originally described.

When doing a revision of a group, particularly a DNA-based phylogentic revision, having specimens from the Type Locality is incredibly important. It allows us to be sure that what we collected is in fact what we think it is and not a very similar individual. We have managed to collect a good number of specimens from type localities, which are referred to a Type Specimens. Others have come from the people at iNaturalist. By receiving specimens from people across the country we get material from areas we would never get to (or never get to at the right time).

Okanagana arboraria from Davis
O. catalina from Catalina Island (collected with a permit)
O. formosa (from Cedar Springs, Utah)
O. ornata (from Shasta, CA)
O. utahensis (from Cedar Springs, Utah)

All of these are from the type locality or very close. We have a number of others that are within 100km or less of the Type locality which is pretty darn good. It's virtually impossible to get type material for every species even when we target them, but what we have gotten is incredibly important for our research.

Publicado em 15 de julho de 2020, 10:52 MANHÃ por willc-t willc-t | 0 comentários | Deixar um comentário

05 de julho de 2020

Past Contributors

O. arboraria (type) - @linak, @catchang (recording)
O. bella - @drjakuna
O. formosa (type) - @drjakuna
O. fratercula - @drjakuna, @joeeggy30
O. gibbera - @drjakuna
O. hesperia - @jenny109, @rlsanders
O. lurida - @rachtile
O. magnifica - @ameeds
O. noveboracensis (type)- @upupa-epops (recordings)
O. ornata (type) - @richardwasson
O. rimosa @brandonwoo
O. rubrovenosa @catchang (recording)
O. synodica - @rlsanders
O. tristis @mnishiguchi, @birdernaturalist
O. uncinata - @silversea_starsong
O. utahensis (type) - @drjakuna
O. vanduzeei - @drjakuna
O. viridis - @rlsanders
The great unknowns (for now): @kmosbruger, @silversea_starsong, @mnishiguchi

Publicado em 05 de julho de 2020, 10:24 TARDE por willc-t willc-t | 0 comentários | Deixar um comentário

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