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The Snapshot February 2020

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Evaluating Volunteer Participation in Snapshot Wisconsin through Zooniverse
Our researchers explore how volunteers engage with Snapshot Wisconsin through Zooniverse.

globe
Maps of the Zooniverse
Where in the world are our volunteers?

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Announcements
Read our latest blog posts and view the photo of the month.


Evaluating Project Participation through Zooniverse


One of the easiest ways to participate in Snapshot Wisconsin is by classifying photos through a website called Zooniverse. Zooniverse is a crowdsourcing service that is accessible to anyone, anywhere, and the site has hosted Snapshot Wisconsin since 2016. Snapshot Wisconsin’s most prolific Zooniverse volunteer has contributed over 65,000 classifications to the project’s dataset. To date, 1.9 million trail camera photos have been processed through Zooniverse, and more than 7,500 different individuals have registered to participate.

Zooniverse volunteers play a pivotal role in Snapshot Wisconsin. Analyzing volunteer participation gives staff a better idea of how to effectively engage volunteers and can also offer researchers a look at how patterns in participation relate to the overall quality of the data acquired from the platform.

In the interest of exploring a quantitative assessment of volunteer participation in Snapshot Wisconsin through Zooniverse, researchers conducted a Latent Profile Analysis (LPA) of our volunteers. LPA can be used to organize a given sample size of people into groups based on observable variables, such as user activity over time. Through this, researchers were able to ascertain how many different groups of people exist in the sample, which individuals belong to which group, and what characteristics are unique to each group. This allowed researchers to hone in on specific patterns in user engagement.

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Researchers identified measurable variables unique to each volunteer and their activity on Zooniverse between November 2017 and February 2019. These included the number of days each volunteer was active, time elapsed between active days, and the amount of time volunteers spent on the site on active days. From this, researchers parsed volunteers into three profiles: temporary, intermittent and persistent.

Temporary volunteers are those who exhibited rigorous participation, but only for a short period of time. Intermittent are those characterized by the significant amount of time elapsed between a relatively small number of active days. Persistent are those who demonstrated high levels of activity across the entire period examined.

Measures of accuracy specific to each group revealed that temporary volunteers demonstrate lower accuracy in their classifications compared to intermittent volunteers. Though intermittent volunteers tended to allow more time to go by between active days, the consistent practice ultimately made their classifications more accurate.


porcupines

In this instance, we may turn to an old adage: practice makes perfect. It comes as no surprise that practice and accuracy are correlated, and that volunteers become better at classifying photos with more time spent doing so. In the graphic on the right, all four photos are of porcupines, though they are of varying degrees of difficulty when it comes to classification. Though classifying photos like these may be tricky at first, over time certain characteristics begin to stand out more readily – a porcupine may be identified by their lumbering gait, or the way that their quills appear from different angles and in different light. The more frequently one sees these traits, the easier they become to identify. Volunteers who participate at any level, whether temporary, intermittent, or persistent, are of great value to the project, and the more time spent on Zooniverse, the more likely that the classifications assigned to each photo are accurate.

Citizen science is an integral part of the Snapshot Wisconsin project, and is in fact core to its mission, which is to rally the knowledge and resources of citizens across Wisconsin and throughout the world to build a comprehensive and highly accurate portrait of Wisconsin wildlife. No two Zooniverse volunteers are quite the same, and each individual informs our understanding of how citizen science can be utilized effectively in research. No matter how one chooses to participate, participation alone brings us closer to our goal.


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Maps of the Zooniverse


The opportunity to classify photos of wildlife from across Wisconsin draws a diverse array of individuals to our Zooniverse page. Some volunteers are trail camera hosts themselves and enjoy classifying photos from other camera sites. Zooniverse also offers this opportunity to those who are unable to host a camera but still wish to participate in the project.

The maps here were created using Google Analytics data, which can anonymously record information about users who access a webpage, such as their nearest city. This data shows us that Snapshot Wisconsin reaches an audience far beyond Wisconsin, and even beyond the United States! In total, volunteers from 696 cities across 41 countries have interacted with the Snapshot Wisconsin Zooniverse page since 2016. 190 of those cities are in Wisconsin.

Each dot represents just one city, regardless of the number of individuals who accessed the site in that location. For example, the dot for the city of Madison could represent thousands of users. Zooming in on Wisconsin, we see that many dots are centered around the most populous areas, such as Madison, Milwaukee, Minneapolis and Chicago. This pattern can be attributed to the fact that these areas also host the highest concentration of suburbs.

Regardless of the volunteer’s location, each classification we receive is important to the success of Snapshot Wisconsin.

wisconsin map
world map
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Announcements


Don’t forget to keep with our Zooniverse blog for research updates, field experiences, fun photos and more! Recent blog posts include Rare Species of Wisconsin and A Brief History of Trail Cameras February’s Photo of the Month features a comical submission from Steve and Evie in Vilas County. We hope you enjoyed this newsletter edition featuring our Zooniverse volunteers, turns out they aren’t the only ones interested in Snapshot Wisconsin cameras!

To enter one of your favorites from a Snapshot Wisconsin camera, please email the image to the project inbox DNRSnapshotWisconsin@Wisconsin.gov.

photo of the month
February 2020 Photo of the Month

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Last revised: Tuesday January 28 2020