Helsinki Urban Rat Project
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helsinkirats.bsky.social
Helsinki Urban Rat Project
@helsinkirats.bsky.social
Inter-/multi-/transdisciplinary research on rats in the City of Helsinki Finland! Come for the rat photos and videos, stay for transformative multispecies research.

Managed by @aivelo.bsky.social
Reposted by Helsinki Urban Rat Project
RHEV Helsinki strains clustered together with strains from South Korea and Spain, but polytomous phylogenetic trees and large branch lengths suggest lack of sampling. Our genotype RHEV-C1 has been reported to cause mild liver dysfunction with human case reports from Hong Kong, Spain, and France.
September 30, 2025 at 6:59 AM
Reposted by Helsinki Urban Rat Project
The research might be "eclectic disciplinary perspectives", but as Riikka aptly summarizes: "Urban stigmatisation and marginalisation are multispecies processes that emerge with place-making and have consequences for all the multispecies cohabitants of the city."
(5/5)
September 24, 2025 at 2:19 PM
Reposted by Helsinki Urban Rat Project
Waste, humans, rats - junk food, shopping centers, drunk people. "Well, this just happens to be a place where people randomly poop around, business as usual."

Belonging and place-making are multispecies phenomena, and urban is not only human, but more-than-human.
(4/5)
September 24, 2025 at 2:19 PM
Reposted by Helsinki Urban Rat Project
With this invisible rat presence, we examined urban stigmatisation and belonging as examples of societal phenomena which can be rethought as multispecies. They are very territorial in scope, and place-making emerged as a fruitful concept to understand how multispecies urban is formed.
(3/5)
September 24, 2025 at 2:19 PM
Reposted by Helsinki Urban Rat Project
We (as in the ragtag bunch of researchers in CitiRats project) went out to look for rats with lower secondary-school students and we did not see any rats, but we did felt their hidden presence. They were present in stories, stereotypes, memories, and athmospheres.
(2/5)
September 24, 2025 at 2:19 PM
Reposted by Helsinki Urban Rat Project
This was an effort of multiple people devising data collection, two students coding and a number of us helping in analysis and writing up the results! Really fun interdisciplinary effort. Illustrations by Susu Rytteri! 8/8
March 18, 2025 at 3:05 PM
Reposted by Helsinki Urban Rat Project
The most interesting finding was that almost any species or reason could either lead to increase or decrease of feeding, depending on the context.
A lot of people like to go against the grain: when everybody else stop feeding due to rats, someone doubles down and feeds more. 7/8
March 18, 2025 at 3:05 PM
Reposted by Helsinki Urban Rat Project
People described a number of reasons to increase feeding such as caring for endangered species, empathy or interest in birds, keeping up traditions, supporting biodiversit or wanting to provide nature connection to children or cats looking behind the window. 5/8
March 18, 2025 at 3:05 PM
Reposted by Helsinki Urban Rat Project
There are many papers on the motivations to feed birds and how bird-feeding affects bird and non-avian communities. There are less studies on how communities at the bird-feeder affect the feeding practices and the first peek of the dat seems to show that that's where the drama happens! 4/8
March 18, 2025 at 3:05 PM
Reposted by Helsinki Urban Rat Project
The first part of data was presented in @flewrabi.bsky.social's paper few months ago in People and Nature: doi.org/10.1002/pan3...

In the second part, we focused on the 15,000+ open-ended answers which proved to be a treasure trove. 3/8
How, why, where and when people feed birds?—Spatio‐temporal changes in bird‐feeding in Finland
Read the free Plain Language Summary for this article on the Journal blog.
doi.org
March 18, 2025 at 3:05 PM
Reposted by Helsinki Urban Rat Project
Bird-feeding could be the most common human-wild animal interaction in the Global North.

My colleagues collected an impressive dataset on changes in bird-feeding and rats were one of the major reasons to reduce feeding so I was asked to collaborate. 2/8
March 18, 2025 at 3:05 PM