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Josh Twining

@JoshuapTwining

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Assistant Professor at Oregon State University | Population Ecology | Quantitative Ecology | Editor @ Ecology | Editor @ Mammal Communications.

Corvallis, Oregon, USA
Joined February 2014
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@JoshuapTwining
Josh Twining
4 months
RT @Fuller_Lab: Ronen Shapiro, a high school junior, impressed the crowd at the 80th annual Northeast Fish & Wildlife Conference with his….
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@JoshuapTwining
Josh Twining
7 months
PhD project: How interactions between predators, parasites, and the environment influence the population dynamics of a cyclical endemic vole.
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@grok
Grok
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"A girl in a flowing white dress floating gracefully into a dreamy sky filled with stars and colorful clouds at sunset.". Try Grok Imagine, free for a limited time:.
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@JoshuapTwining
Josh Twining
7 months
Masters project: Developing non-invasive monitoring methods and models for small mammal populations.
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@JoshuapTwining
Josh Twining
7 months
I am recruiting two funded graduate students (1 MS, 1 PhD) to join the lab and the Fisheries, Wildlife, and Conservation Sciences program at Oregon State University! . If you are into small mammals and population ecology then check this out. Please share/repost widely!.
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@JoshuapTwining
Josh Twining
8 months
RT @JoshuapTwining: Are you interested in species interactions and how we model them? . Then this thread is for you! . Our new paper in @ES….
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@JoshuapTwining
Josh Twining
8 months
RT @Fuller_Lab: Check out our new paper in @ESAEcology and the great 🧵 by @JoshuapTwining !.
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@JoshuapTwining
Josh Twining
8 months
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!
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@JoshuapTwining
Josh Twining
8 months
If you are interested and want to learn more, please check out our new open access paper in @ESAEcology:. Huge thank you to the dream team on this @BenCAugustine @andyroyle_pwrc and @Fuller_Lab. (12/13).
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@JoshuapTwining
Josh Twining
8 months
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)
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@JoshuapTwining
Josh Twining
8 months
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).
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@JoshuapTwining
Josh Twining
8 months
What I think is really cool here is the variable ecological contexts of use - from intraguild interactions to parasite- or predator- mediated competition through to trophic cascades. (9/13).
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@JoshuapTwining
Josh Twining
8 months
What if you are interested in interactions between more than two species? No problem, more species, more sub models. (8/13).
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@JoshuapTwining
Josh Twining
8 months
Our solution was to develop a framework that explicitly considers species abundance using detection/non-detection data, leveraging well established occupancy and Royle-Nichols models. (7/13)
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@JoshuapTwining
Josh Twining
8 months
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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@JoshuapTwining
Josh Twining
8 months
But when is modelling co-occurrence of species useful?. Check out these two scenarios thinking about interactions between foxes and coyotes. In which one might we get useful inference thinking about interactions as a function of occupancy? . (5/13)
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@JoshuapTwining
Josh Twining
8 months
There are a number of models which motivated by field observations of interactions can be used to model interactions. My fav is the Rota multi-species model. The heart of this co-occurrence model is a state model for estimating the latent occupancy state of a site. (4/13)
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@JoshuapTwining
Josh Twining
8 months
The difficulties of scaling up local observations of interactions between species to landscape-scales are exemplified when you consider that interactions vary in their strength and direction depending on habitat, community composition, and abundance of species of interest. (3/13)
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@JoshuapTwining
Josh Twining
8 months
Ecologists spend alot of time trying to understand species interactions. Species interactions are key in driving wildlife distribution and abundance patterns at both local and landscape-scales. But demonstrating the role of interactions in ecosystems is non-trivial. (2/13)
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