A working group at the German Centre for Integrative Biodiversity Research
Recent Posts
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Update on ontogeny work from Pedro
Pedro updates DAISEY model to include area as a driver of rates of extinction, cladogenesis, immigration. Like DAISEY model we consider the ontogeny of one island or island complex through time. So far only area-dependent extinction implemented. When considering data simulated with ontonogenic change in extinction, estimates from models that...
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Today's breakout session updates
macroeco hearts macroevo Brian would like folks to write 6 case studies alpha/beta Outline of paper: Intro Theory box to motivate hypotheses Case studies Hawaii trees Azores arthropds Galapagos snails Maybe Rosie’s spiders In the larger group discussion we talked about controlling for spatial and environmental “volume” when calculating gamma...
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Project updates
MESS Isaac updates us re-write of gimmeSAD to MESS codebase huge performance improvements clean, modern CLI and API multi-island phylogeny, traits (aka “Chase knob”), crude speciation need help on speciation from mathematicians “Gillespie knob” determines how speciation depends on abundance online doc (!) analysis of data spider data (from Brent...
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Discussing data
Henrick’s Hawaiian metabarcoding data summary raw amplicon data rarified otu and haplotype tables three main products: across chronosequence across elevation (temp and precip gradient) collembola invasion would be great to have phylogeny but we’re not there yet: there’s hope for using reference collections and grafting COI trees onto better supported...
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Timeline For August
Where is the end point for August for each of the proposed projects ##
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Friday Morning
Population genetics Any time colonization or hybridization is involved polymorhpism data will be useful. Niches We kind of sidelined niches a little bit, but we should keep this in mind as we progress toward August. Talk about planning for the future. Data Sets Available Groups should indicate somehow which datasets...
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Thursday Morning Notes
Alpha/Beta Modelling group relate alpha/beta/gamma diversity from an evolutionary neutral model 3 part paper simple abstract spatially implicit model (analytical) spatially explicit model Emperical example Discussion about the kinds of data we might need Is this kink driven mainly by ecology or mainly by evolution The data might be a...
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Thursday Afternoon Visit With Martin Freiberg
Visit with Martin Freiberg (Taxamap) “This is not for ordinary people.” “If you want to do something really nice you have to begin with cats.” “Even plants make sounds.” lifegate.idiv.de
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Thursday Afternoon Late
Data issues Data types assumed to be required by each project are updated on this page: proposed project outlines Petr is going to be the go-between in helping shepherd data into a centralized repo Schedule for Friday Deliverables. What exactly are we committed to doing? Timeframe. How long are things...
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Thursday Afternoon Early
General Chatter “It’s the margins of ‘roughly’ that will bite us.” “How willing are you to give the data a break.”
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Wednesday Daily Wrapup
Paper ideas reporting back 1) Framework - Macroecology + Macroevolution Lead - Brian McGill Idea for a quick and dirty paper Call for macroecologists and macroevolutionary biologists to work more closely together even though there has been some progress lately with the eco-evo modelling stuff that’s been happening lately. We’ve...
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Morning Notes
Wednesday morning breakout group activity Alpha/Beta Group Looking at species area break-point models Island archipelago, smaller area island species richness is all colonization, larger islands speciation becomes more important (Losos/Schluter) local community structure at the alpha and also beta level. Threshold where increasing area facilitates local speciation Or maybe the...
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Afternoon Notes
Authorship Emphasize enclusiveness Unequeal contribution Folks can opt-out based on the honor system of contribution Main papers Opt-out: everybody should assume they are an author unless you opt-out, for whatever reason. Spin-off papers Should avoid getting dog-piled on excessively by everybody co-authoring on everything Spin off papers shouldn’t be dragged...
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Key Questions
Here is a list of ideas for key questions, meant to spur discusssion. questions - google doc
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Morning Breakout Roundup
Results from the morning discussion about important eco-evolutionary questions Group 1 How does system size determine community assembly on evolutionary timescales? What are the mechanisms that drive radiations? What is the effect of island ontogeny in determining present-day biodiversity patterns? What determines resistance to invasion? Where is the diversity emerging,...
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Afternoon Notes
Why are there so many different kinds of markdown!?!?!?!?! Aghhhghhhhhrrrhhhh! 20 * How does system size (and isolation) determine community assembly on evolutionary timescales? 15 * What are the mechanisms that drive radiations? 15 * What is the effect of habitat dynamics (e.g. island ontogeny) in determining present-day biodiversity patterns?...
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Afternoon Breakout Roundup
Condensed list of ideas that occurred in multiple groups or inspired lively conversation: Speciation needs to be more explicitly modelled in both the local and regional pools, perhaps with some kind of ‘knob’ or ‘dial’. Not clear whether this knob should go only up to or perhaps beyond 10. Also,...
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Selected readings
Below we summarize and categorize some key papers relevant to our working group. Theories of assembly and diversification Core ecological neutrality S. P. Hubbell (2001): The book on the matter. Etienne (2005): A backward in time (“ancestry assignment”) algorithm for the simple neutral theory. But inherently it produces phylogenies, and...
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Cartoon model
The model as of right now works as follows. Simulate a phylogenetic tree under a speciation-extinction model with birth rate $\lambda$ and death rate $c\lambda$ where $c$ determines the proportion of extinction relative to speciation and is bounded between 0 and 1. Simulate species’ traits under a Brownian motion model...
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Schedule
This meeting will take place from 19th to 23rd March 2018 at iDiv, Deutscher Platz 5, 04103 Leipzig. Sunday 18 March 2018 7:00 pm Dinner reservation in the restaurant Amaroso (in Balance Hotel) Monday 19th March 9:00 am Registration and Introduction Marten Winter 9:20 am Working group - brief...
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Project summary
A central challenge in understanding the origins of biodiversity is that, while we can observe and test local ecological phenomena, we must usually infer the longer-term outcomes of these ecological forces indirectly. We propose to develop inferential models at the interface between macroecology and population-level processes, and apply them to...
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Participant list - March 2018
Name Institution Email Rosemary Gillespie UC Berkeley gillespie@berkeley.edu Mike Hickerson CUNY (New York) mhickerson@gmail.com Andrew Rominger Santa Fe Institute ajrominger@gmail.com Jonathan Chase iDiv, Leipzig jonathan.chase@idiv.de Luke Harmon University of Idaho lukeh@uidaho.edu Isaac Overcast CUNY (New York) isaac.overcast@gmail.com Katie Wagner Univ Wyoming catherine.wagner@uwyo.edu James Rosindell Imperial j.rosindell@imperial.ac.uk Rampal Etienne Univ....