[Mitarbeiter.zoologie] Fwd: [MEMBERS] This Wednesday: iDiv Seminar Series with Lenore Fahrig

[Robert Paxton]

Dera All,

This looks of general ecological interest,

Robert


> Begin forwarded message:
> 
> From: "Brueckner, Doreen" <doreen.brueckner at idiv.de>
> Subject: [MEMBERS] This Wednesday: iDiv Seminar Series with Lenore Fahrig
> Date: 3 February 2020 at 08:35:36 CET
> To: "all at idiv.de" <all at idiv.de>, "members at idiv.de" <members at idiv.de>, "assoc.members at idiv.de" <assoc.members at idiv.de>, "events at idiv.de" <events at idiv.de>
> 
> Dear all
>  
> We are happy to welcome Lenore Fahrig <https://carleton.ca/biology/people/lenore-fahrig/> from Carleton University in Ottawa, Canada for a 3 months sabbatical at iDiv. She will be collaborating among others with Jon Chase and Henrique Pereira. On Wednesday, Lenore will be presenting her work at the iDiv seminar series. 
>  
> Wednesday, 5 February,
> 1PM
> BBZ large lecture hall (BIO CITY)
>  
>  
> Title: Why do several small patches hold more species than few large patches?
>  
> Abstract:
> The principle that a single large habitat patch should hold more species than several small patches totaling the same area (SL > SS) is used by conservation agencies to favour protection of large, contiguous areas. Previous reviews of empirical studies have found the opposite, SS > SL, creating the SLOSS (single large or several small) debate. I review the empirical and theoretical SLOSS literature, identify potential mechanisms underlying the SS > SL pattern, and evaluate these where possible. Like previous reviews, I found that SS > SL dominates empirical findings. This pattern remained, though it was somewhat weakened, in studies where sampling intensity was proportional to patch size. I found six classes of theory, and conducted five preliminary evaluations of theory. None of the predictions was supported. The SS > SL pattern held for specialist species groups, suggesting it does not result from incursion by generalists into small patches. I found no evidence for the prediction that the reverse pattern (SL > SS) becomes more common over time since patch creation, through gradual species losses from SS. I found no difference between results for natural and anthropogenic patches. There was also no evidence for predictions that SL > SS is more common when the matrix is more hostile, or for stable than ephemeral patches. In conclusion, most empirical comparisons find SS > SL. While there are several potential causes, more empirical work is needed to identify those at play. Meanwhile, conservation practitioners should understand that there is no ecological evidence supporting a general principle to preserve large, contiguous habitat areas rather than multiple small areas of the same total size.
>  
>  
> Live broadcast of the iDiv Seminar Series
> You can view the talk with the following link: https://webconf.vc.dfn.de/idiv-seminar-series/ <https://webconf.vc.dfn.de/idiv-seminar-series/>
> Name: your name or nick name
> Room Passcode: idiv123
> Required is a web browser with Flash <https://get.adobe.com/de/flashplayer/>
>  
> Hope to see many of you there.
>  
> Best
> Doreen
>  
> ___________________________________________________________________
> Doreen Brückner
>  
> sDiv 
> Administrative Assistant
> German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
>  
> Phone:                 +49 341 9733130
> Mail:                     doreen.brueckner at idiv.de <mailto:doreen.brueckner at idiv.de>
>  
>  
> German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
> Deutscher Platz 5e
> 04103 Leipzig
> Germany
>  
> iDiv is a research centre of the DFG – Deutsche Forschungsgemeinschaft
>  
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