Lightnews — Scholar-powered news

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Jun 30

#RH_Reading2025

またサボってました、再開

25-022
Lafferty et al. 2006 PNAS
Parasites dominate food web links
www.pnas.org/doi/10.1073/...

25-023
Bennett et al. 2024 MEPS
Expanding on a marine food web using parasitological data
www.int-res.com/abstracts/me...

www.int-res.com

Ryota HASEGAWA @ryotahasegawa922.bsky.social · May 25

Another paper was out in International Journal for Parasitology!
We systematically reviewed the relationships between fish body condition and parasite infections, very common approach for elucidating negative impacts of parasites on host health

Zoology Department, University of Otago @zoologyotago.bsky.social · May 2

Effect of parasite infections on fish body condition: a systematic review and meta-analysis
doi.org/10.1016/j.ij...

Testing for Consistency in Co-occurrence Patterns Among Bacterial Taxa Across the Microbiomes of Four Different Trematode Parasites - Microbial Ecology

Ryota HASEGAWA @ryotahasegawa922.bsky.social · May 25

My first paper about microbiome in trematodes was out in Microbial Ecology!

Zoology Department, University of Otago @zoologyotago.bsky.social · May 20

Testing for Consistency in Co-occurrence Patterns Among Bacterial Taxa Across the Microbiomes of Four Different Trematode Parasites
doi.org/10.1007/s002...

Elucidating the specific processes and drivers of community assembly in the host microbiome is essential to fully understand host biology. Toward this goal, an important first step is to describe co-o...

森と川の季節的なつながりがアマゴの多様な生き方を育む | 東京大学大学院農学生命科学研究科・農学部

Reposted by Ryota HASEGAWA

river @beadriver.bsky.social · May 21

森と川の季節的なつながりがアマゴの多様な生き方を育む（東京大学、京都大学、三重大学、ノースカロライナ大学） www.a.u-tokyo.ac.jp/topics/topic... ｜「森や川といった生態系の季節的なつながりが、生物多様性の一つである種内の多様性維持に貢献することを実証」「気候変動や人間活動が野生生物に及ぼす影響についても重要な知見をもたらす」

森と川の季節的なつながりがアマゴの多様な生き方を育む

www.a.u-tokyo.ac.jp

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Reposted by Ryota HASEGAWA

nicojsmit.bsky.social @nicojsmit.bsky.social · May 17

The wait is over!! Our Open Access @springernature.com book on Aquatic Parasitology was just published! 23 Chapters, 202 illustrations & 662pp with everything you ever wanted to know about the amazing world of marine & freshwater parasites. @berndsures.bsky.social link.springer.com/book/10.1007...

Aquatic Parasitology: Ecological and Environmental Concepts and Implications of Marine and Freshwater Parasites

A unique open access collection on ecological and environmental parasitology in marine and freshwater. Covers climate change and parasite conservation.

link.springer.com

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · May 12

#RH_Reading2025

25-020
Preston et al. 2024 FunctEcol
Age-prevalence curves in a multi-species parasite community
besjournals.onlinelibrary.wiley.com/doi/full/10....

25-021
Johnson & Hoverman 2012 PNAS
Parasite diversity and coinfection determine pathogen infection success and host fitness

Age‐prevalence curves in a multi‐species parasite community

Read the free Plain Language Summary for this article on the Journal blog.

besjournals.onlinelibrary.wiley.com

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 26

#RH_Reading2025

25-017
Soga et al. 2023 TREE
The vicious cycle of biophobia

25-018
Joye & De Block 2025 TREE
Our not-so-natural connection to nature

25-019
Lagrue & Poulin 2015 Oikos
Bottom–up regulation of parasite population densities in freshwater ecosystems

royalsocietypublishing.org

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 20

#RH_Reading2025

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Stanicka et al. 2023 Freshw Biol
onlinelibrary.wiley.com/doi/full/10....

25-015
Fleischer et al. 2021 Evolution
academic.oup.com/evolut/artic...

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Hasegawa et al. 2024 Ecol Freshw Fish
onlinelibrary.wiley.com/doi/full/10....

寄生虫戦士-モニジャ- on X: "退職日すら自分で決めさせてもらえず、赤が入ったこれを退職届とは思えていないよね。強要の証拠だと思って当時、大事に取っておいたんだけど、無意味だった。せめてこの２０日間があれば少しは考えることができたんだけど、、、。 https://t.co/Gg5vlieSCt" / X

Reposted by Ryota HASEGAWA

m-urabe @m-urabe.bsky.social · Apr 19

xの投稿なのですが重要な件なので..
私と共著論文もあるIさん、1年前に麻布大学助教の職を採用後わずか２ヶ月で辞職させられた経緯を公表しています。この件につき、大学側に再調査の依頼をしたが却下されたとのことで、ネットでの実名公表に踏み切られました。
x.com/legendofhotd...

退職日すら自分で決めさせてもらえず、赤が入ったこれを退職届とは思えていないよね。強要の証拠だと思って当時、大事に取っておいたんだけど、無意味だった。せめてこの２０日間があれば少しは考えることができたんだけど、、、。 https://t.co/Gg5vlieSCt

x.com

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 18

#RH_Reading2025

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Fourreau et al. 2025 ProcB
royalsocietypublishing.org/doi/full/10....

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Bates et al. 2010 Oecologia
link.springer.com/article/10.1...

The Trojan seahorse: citizen science pictures of a seahorse harbour insights into the distribution and behaviour of a long-overlooked polychaete worm | Proceedings of the Royal Society B: Biological Sciences

Symbiotic marine invertebrates can be small, hidden or difficult to find, hampering the understanding of their distribution and ecological roles. Haplosyllis anthogorgicola is a polychaete inhabiting the gorgonian Anthogorgia bocki, where it lives in high ...

royalsocietypublishing.org

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 13

#RH_Reading2025

つい忙しくてサボってしまった

25-010
Brand et al. 2025 Science
www.science.org/doi/10.1126/...

25-011
Hoso 2012 ProcB
royalsocietypublishing.org/doi/10.1098/...

Cost of autotomy drives ontogenetic switching of anti-predator mechanisms under developmental constraints in a land snail | Proceedings of the Royal Society B: Biological Sciences

Autotomy of body parts offers various prey animals immediate benefits of survival in compensation for considerable costs. I found that a land snail Satsuma caliginosa of populations coexisting with a ...

royalsocietypublishing.org

Positive feedback between parasite infection and poor host body condition reduces host survival in the wild

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 11

Check out our other article in Functional Ecology, which explores the potential occurrence of both causal links underlying the correlations between body condition and parasite infections, and their consequences on host fitness.
besjournals.onlinelibrary.wiley.com/doi/full/10....

Read the free Plain Language Summary for this article on the Journal blog.

besjournals.onlinelibrary.wiley.com

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 11

Our study revealed that researchers’ interpretations of this relationship are highly biased.

Check out our new paper from Journal of Fish Biology.

onlinelibrary.wiley.com/doi/full/10....

Cause or consequence? Exploring authors' interpretations of correlations between fish body condition and parasite infection

We reviewed 194 publications that reported relationships between fish body condition indices (BCIs) and parasite infections, and examined the authors' intention behind this cross-sectional analysis, ...

onlinelibrary.wiley.com

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 11

Examining the correlation between body condition and parasite infections is a common approach for identifying the negative effects of parasites, but causality is unknown (parasites reduced body condition? poor body condition caused infections?)(continued).

Does the host matter? Testing the impact of host identity on the microbiome of a trematode parasite - Parasitology Research

Reposted by Ryota HASEGAWA

Zoology Department, University of Otago @zoologyotago.bsky.social · Apr 2

Does the host matter? Testing the impact of host identity on the microbiome of a trematode parasite
doi.org/10.1007/s004...

Animal microbiomes have been recognized to have significant impact on animal behaviour, development, and health. For parasites, one of the sources of their associated microbes is likely their hosts, m...

Interspecific interactions among parasites in multiple infections

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Apr 2

#RH_Reading2025

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Keegan et al. 2024 Proc B.
royalsocietypublishing.org/doi/full/10....

25-009
Duncan et al. 2024 Trends Parasitol.
www.cell.com/trends/paras...

Individual hosts and populations frequently harbour multiple parasite species simultaneously. Despite their commonness, the consequences of interspecific interactions among parasites for determining i...

www.cell.com

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Mar 30

#RH_Reading2025
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Seguel et al. 2022 Funct Ecol
besjournals.onlinelibrary.wiley.com/doi/full/10....

25-007
Graham 2008 PNAS
www.pnas.org/doi/full/10....

Long-Term Modulation of Electrical Synapses in the Mammalian Thalamus

Electrical synapses are common between inhibitory neurons in the mammalian thalamus and neocortex. Synaptic modulation, which allows flexibility of communication between neurons, has been studied extensively at chemical synapses, but modulation of ...

www.science.org

To bin or not to bin: why parasite abundance data should not be lumped into categories for statistical analysis | Parasitology | Cambridge Core

Reposted by Ryota HASEGAWA

Zoology Department, University of Otago @zoologyotago.bsky.social · Mar 27

To bin or not to bin: why parasite abundance data should not be lumped into categories for statistical analysis
doi.org/10.1017/S003...

To bin or not to bin: why parasite abundance data should not be lumped into categories for statistical analysis

Why infectious disease research needs community ecology

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Ryota HASEGAWA @ryotahasegawa922.bsky.social · Mar 26

#RH_Reading2025
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Johnson et al. 2015 Science
Why infectious disease research needs community ecology
www.science.org/doi/10.1126/...

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Halliday et al. 2024 TREE
On the hunt for facilitation in symbiont communities
www.sciencedirect.com/science/arti....

The tools we use to investigate infectious diseases tend to focus on specific one-host–one-pathogen relationships, but pathogens often have complex life cycles involving many hosts. Johnson et al. rev...

www.science.org

Species associations among larval helminths in an amphipod intermediate host

Ryota HASEGAWA @ryotahasegawa922.bsky.social · Mar 24

#RH_Reading2025
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Dezfuli et al. 2000 IJP
www.sciencedirect.com/science/arti...

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Chen et al. 2008 Oikos
nsojournals.onlinelibrary.wiley.com/doi/abs/10.1...

Larval helminths that share the same intermediate host may or may not also share the same definitive hosts. If one or more of these helminth species c…

www.sciencedirect.com