Kelley Langhans (she/her)
@kelleylanghans.bsky.social
31 followers 63 following 23 posts
Conservation social science postdoc at Virginia Tech, former PhD in ecology at Stanford Interdisciplinary conservation scientist studying human/wildlife relationships, birds, urban ecosystems, access to nature.
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kelleylanghans.bsky.social
And a fun post-script - I have now moved to San Francisco and joined one of the gardens I worked with! I’m excited to keep connecting with birds and people there! 💚 🌻 🐦
kelleylanghans.bsky.social
Finally, I’d like to thank all the community gardens, garden leaders and volunteer coordinators, and gardeners themselves! None of this would have been possible without them generously welcoming us into their gardens and sharing their experiences.
kelleylanghans.bsky.social
It was a pleasure to work with my amazing interdisciplinary team of coauthors: @ornithoale.bsky.social, Maya Xu, @flamingmuffinz.bsky.social, Mei Li Palmeri, Meggie Callahan, Nicole Ardoin, and Gretchen Daily
kelleylanghans.bsky.social
This underscores the importance of urban community gardens - not only do they provide habitat for biodiversity and opportunities to access nature, but also many other benefits: social connections, education, and food sovereignty. Let’s work to protect and advocate for urban community gardens!
kelleylanghans.bsky.social
Regardless, these results are exciting - they suggest that community gardens have the potential to provide access to nature across an income gradient! People in both high and low income neighborhoods in San Francisco can have positive interactions with birds in gardens.
kelleylanghans.bsky.social
Why might this be? It could be because birds are highly mobile organisms, the nature of San Francisco (compact, lots of greenspace, heterogenous), regional effects (luxury effect is stronger in tropical and arid environments), or community gardens themselves.
kelleylanghans.bsky.social
For example, we expected lower income neighborhoods to have less canopy cover and therefore less avian species richness, but instead found all three of these variables were unrelated!
kelleylanghans.bsky.social
Instead, we found that avian species richness and abundance were predicted by local and landscape-scale environmental factors, very few of which were correlated with income.
kelleylanghans.bsky.social
Surprisingly, given past studies on the luxury effect that show higher biodiversity in higher income neighborhoods, we found no relationships between any of these metrics and garden income!
kelleylanghans.bsky.social
For each garden, we compared three bird metrics with garden income: species richness, abundance, and a species access metric, a metric for our 10 focal species that was higher where there were more individuals from species people noticed and cared about.
kelleylanghans.bsky.social
We dug into why attitudes differed. While less-popular species had mostly aesthetic disservices, popular species had both ecological and aesthetic services. This suggests that providing education about species’ ecological roles could be an important conservation tool!
kelleylanghans.bsky.social
However, we also wanted to understand how much gardeners noticed each species. When we weighted sentiment scores by recognition, the scores of less-charismatic species like the Black Phoebe dropped.
kelleylanghans.bsky.social
Using these results, we were able to assign each species a “sentiment score” and rank them in terms of positive sentiment. Most species had more positive than negative words associated with them, while corvids were the exception.
kelleylanghans.bsky.social
For each species, we performed a sentiment analysis, classifying words into positive, negative and neutral. While species like the Anna’s Hummingbird had primarily positive associations, others like the American Crow, were more controversial.
kelleylanghans.bsky.social
We also examined gardener attitudes towards 10 common garden species, chosen to capture a range of traits, through a word association task.
kelleylanghans.bsky.social
Through our surveys, we learned that gardeners felt positively about birds overall, showing high agreement with a number of positive statements about birds in the garden!
kelleylanghans.bsky.social
We worked in 20 community gardens across an income gradient in San Francisco, CA, surveying gardeners, performing avian point counts, and survey vegetation.
kelleylanghans.bsky.social
We studied a specific type of access to nature, human/bird interactions, through an interdisciplinary lens. We wanted to understand how people felt about birds overall as well as specific species, and where people came into contact with those species as well as diverse bird communities.
kelleylanghans.bsky.social
This means we miss some crucial components: understanding how specific components of nature (like wildlife!) contribute to access, and understanding whether people actually benefit from and enjoy coming into contact with that nature.
kelleylanghans.bsky.social
Access to nature provides myriad benefits to people, but those benefits are not equitably distributed. In addition, most studies of access to nature focus on physical access to greenspace.
kelleylanghans.bsky.social
Super excited about this paper, it was such a pleasure to collaborate on it with @ornithoale.bsky.social! Longer post coming soon but check it out at www.sciencedirect.com/science/arti...
kelleylanghans.bsky.social
Migrating to Bluesky, excited to re-connect with folks on this platform!