Joshua P. Twining | Lightnews

Joshua Twining

@joshuaptwining.bsky.social

310 followers 130 following 31 posts

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Environmental science 74%

Geography 19%

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Joshua Twining @joshuaptwining.bsky.social · Jun 6

Questions and inquiries welcome, my email is joshua.twining@oregonstate.edu

Joshua Twining @joshuaptwining.bsky.social · Jan 14

Feel free to email me at Joshua.twining@oregonstate.edu with any questions!

Joshua Twining @joshuaptwining.bsky.social · Jan 14

It’s got everything you could dream of - loads of fieldwork, small mammal trapping and handling, simulations to inform sampling designs and hierarchical modeling, all in the beautiful Pacific Northwest!

Joshua Twining @joshuaptwining.bsky.social · Jan 14

Are you looking to get a graduate degree in Fisheries, Wildlife, and Conservation Sciences? This funded MS project at OSU is focused on testing a range of non-invasive method for small mammals (enclosed camera trapping + thermal cameras mounted on drones) against SCR applied to live trapping data.

Joshua Twining @joshuaptwining.bsky.social · Jan 13

The masters project: jobs.rwfm.tamu.edu/view-job/?id...

MS in Fisheries, Wildlife, and Conservation Sciences: Developing non-invasive monitoring methods and models for small mammal populations | Natural Resources Job Board

jobs.rwfm.tamu.edu

Joshua Twining @joshuaptwining.bsky.social · Jan 14

Hi Dormiens, applications in my department (Fisheries, Wildlife, and Conservation Sciences) do not close as they are on a rolling basis term to term. See link below for more info:

fwcs.oregonstate.edu/fisheries-an...

How to Apply

Graduate Certificate and Professional Science Masters Applicants: Graduate Certificate applicants may apply as follows: Graduate Certificate in Fisheries Management application (Ecampus), Graduate Cer...

fwcs.oregonstate.edu

Joshua Twining @joshuaptwining.bsky.social · Jan 13

ahah I am Gabby. Started just a few months back.

Thank you!

Joshua Twining @joshuaptwining.bsky.social · Jan 13

I agree! Thanks for sharing Jess.

Joshua Twining @joshuaptwining.bsky.social · Jan 13

The PhD project: jobs.rwfm.tamu.edu/view-job/?id...

PhD in Fisheries, Wildlife, and Conservation Sciences: How interactions between predators, parasites, and the environment influence the population dynamics of a cyclical endemic vole | Natural Resourc...

jobs.rwfm.tamu.edu

Joshua Twining @joshuaptwining.bsky.social · Jan 13

The masters project: jobs.rwfm.tamu.edu/view-job/?id...

MS in Fisheries, Wildlife, and Conservation Sciences: Developing non-invasive monitoring methods and models for small mammal populations | Natural Resources Job Board

jobs.rwfm.tamu.edu

Reposted by Kevin Denny, Miguel Á. Malo, Jens Rommel , and 5 more Kevin Denny, Miguel Á. Malo, Jens Rommel, Julia Ramírez, Frédéric Delsuc, William G. Wade, Joshua P. Twining, Hansraj Gautam

Tanja Pyhäjärvi @pyhatanja.bsky.social · Dec 16

Big news from Finnish publication forum. Almost all MDPI and Frontiers journals will be downgraded to level 0 and thus are not considered as properly peer reviewed trustworthy scientific journals.
julkaisufoorumi.fi/en/news/chan...

Changes to the classification

julkaisufoorumi.fi

Reposted by Joshua P. Twining

Professor Euan Ritchie @euanritchie.bsky.social · Dec 16

A neat article about how moonlight can affect animal behaviour and its relevance to light pollution.

Features research led by @glinley.bsky.social.

www.australiangeographic.com.au/topics/wildl... - @ausgeo.newsmast.social.ap.brid.gy

Moonstruck: how lunar light influences animal behaviour - Australian Geographic

Biologists have recently fixated on our closest celestial body, but what can it tell us about the Moon's effects on animal behaviour?

www.australiangeographic.com.au

Reposted by Joshua P. Twining

Taal Levi @taaltree.bsky.social · Dec 14

Our department of Fisheries, Wildlife, and Conservation Sciences at Oregon State University is hiring a new Department Head. Any full profs out there wanting to lead us?!

jobs.oregonstate.edu/postings/162...

Department Head

The Department of Fisheries, Wildlife, and Conservation Sciences is seeking a Department Head. This is a full-time (1.00 FTE), 12-month, professional faculty position. The Department of Fisheries, Wil...

jobs.oregonstate.edu

Reposted by Xavier Lambin, Joshua P. Twining

Jack Bamber @jackantbam.bsky.social · Dec 14

⏰New Research ⏰

We quantified the direct impact of diversionary feeding on capercaillie productivity. We show an increase in the proportion of hen with a brood in DF sites (37% -> 85%) and, as a result, a 131% increase in chicks per hen. Read more here: www.researchgate.net/publication/...
1/7

Joshua Twining @joshuaptwining.bsky.social · Dec 10

Well this made my day! Thanks Galatea for the great sci comm. I love the graphic you made!

Reposted by Joshua P. Twining

Galatea H @galateainthewild.bsky.social · Dec 9

Advent Sci-Fact 9:

Invasive squirrels do not avoid predator scent!

Grey Squirrels (Invasive in the UK) do not avoid feeders with Pine Marten scent. Native Red Squirrels visit scented feeders less frequently, for shorter visits and are more vigilant!
Paper: tinyurl.com/23u944wq
#SciComm #SciArt 🧪🌍🐿

Two panel diagram. Left panel shows red (native) squirrel and grey (invasive) squirrel eating a peanut.
Right panel shows a peanut covered with Pine Marten (Native Predator) scent. The grey squirrel is eating the peanut, the red squirrel does not. Text shows it is avoiding the feeder and behaving more vigilantly.

Joshua Twining @joshuaptwining.bsky.social · Dec 7

Forgive me, my responses were to a question about modeling plant interactions as opposed to impacts of habitat on animal abundance (the latter of which these models do - you can add any covariates that you hypothesize influence the state process (I.e. abundance) of your species of interest).

Joshua Twining @joshuaptwining.bsky.social · Dec 6

My inkling is that using this model with plant communities wouldn't be an optimal approach but I am uninformed on standard practices when it comes to thinking about plant interactions!

Joshua Twining @joshuaptwining.bsky.social · Dec 6

With mobile animals we have to contend with ubquitous issue of hetereogenity in detectability (so we explicitly address by modeling observation process.) I am niave to whether this is an issue, or even considered / worthwhile when sampling plants (which are stationary and simpler to survey?).

Joshua Twining @joshuaptwining.bsky.social · Dec 6

Thanks Alyssa! I think it *could* be applied to plant systems, but I imagine (I don't know) that there may be more information-rich models used in plant world which contain more info about underlying abundances (here we used detection/non-detection data, but with plants you could just count them?)

Joshua Twining @joshuaptwining.bsky.social · Dec 5

I would love to join if possible!

I develop and use hierachical models for estimating population sizes, distributions, and species interactions to inform evidence-based management and conservation of wildlife populations.

Joshua Twining @joshuaptwining.bsky.social · Dec 5

Thanks Alexej! I hope you are well. We should catch up soon!

Joshua Twining @joshuaptwining.bsky.social · Dec 5

Thanks Remington!

Joshua Twining @joshuaptwining.bsky.social · Dec 5

There are a bunch of interaction models out there, when should you think about using this one?

Check out our flow diagram to help you decide! (13/13)

Please share widely and contact me if you can't access the paper!

Joshua Twining @joshuaptwining.bsky.social · Dec 5

If you are interested and want to learn more, please check out our new open access paper in @ESAEcology:

shorturl.at/Sqz9m

Huge thank you to the dream team on this @bencaugustine.bsky.social Andy Royle, and Angela Fuller.

(12/13)

Abundance‐mediated species interactions

Species interactions shape biodiversity patterns, community assemblage, and the dynamics of wildlife populations. Ecological theory posits that the strength of interspecific interactions is fundament...

shorturl.at

Joshua Twining @joshuaptwining.bsky.social · Dec 5

We then applied the new model to a case study of interactions between coyote, fisher, and marten in northern New York.

We detect interactions between species that we did not detect using co-occurence models! (11/13)

Joshua Twining @joshuaptwining.bsky.social · Dec 5

We ran a bunch of simulation studys to explore inference of modeling interactions as a function occupancy vs abundance, and to explore when, and where the abundance-mediated interaction model works well! (10/13)

Joshua Twining @joshuaptwining.bsky.social · Dec 5

What I think is really neat here is the variable ecological contexts of use - from intraguild interactions to parasite- or predator- mediated competition through to trophic cascades. (9/13).

Joshua Twining @joshuaptwining.bsky.social · Dec 5

What if you are interested in interactions between more than two species? No problem, more species, more sub models. (8/13).

Joshua Twining @joshuaptwining.bsky.social · Dec 5

Our solution was to develop a framework that explicit considers species abundance using detection/non-detection data, leveraging well established occupancy and Royle-Nichols models. (7/13).

Joshua Twining @joshuaptwining.bsky.social · Dec 5

Modelling interactions as function of occupancy may be useful when interactions are so strong that the presence of one sp. predictably results in the exclusion of another, but this is v rare.

What to do in the common scenario where interactions are mediated by abundance? (6/13)

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