Florian Altermatt Profile picture
Sep 6, 2022 7 tweets 7 min read Read on X
Our new paper @PNASNews is addressing a long-standing question in #ecology, #biodiversity sciences and #conservation biology:
How do multiple #species #coexist in fragmented landscapes?

A 🧵on multispecies coexistence: pnas.org/doi/10.1073/pn… (1/7) Image
2/7 Spatially #fragmented #landscapes are very common, both naturally & through human activities.

In such landscapes, a combination of local survival and #colonization of empty habitat patches is key to species' regional persistence. Image
3/7 However, ecological #theory on species coexistence has so far largely focused on local communities.

By integrating #coexistence theory and #metacommunity theory, we propose a mathematical framework to understand multiple species' coexistence in fragmented landscapes. Image
4/7 We propose measures of #niche & #fitness differences for metacommunities, clarifying how spatial dynamics & habitat configuration interact w/ competition to determine coexistence of species.

They tell us when and how species can coexist in realistic landscape configurations.
5/7 Then parametrised a model in metacommunity of 3 #Daphnia species, covering >500 patches monitored over 36 years.

Our results illustrate emergence of interspecific variation in extinction and recolonization processes, including their dependencies on patch size & temperature. Image
6/7 This variation contributes to coexistence by reducing fitness differences and increasing nice differences between the 3 #Daphnia species.

Contrastingly, contemporary environmental change decreases probability of species coexistence and reduces #biodiversity. Image
7/7 The project is a wonderful collaboration w/ @Shaopeng_Wang85 & Mingyu Luo @PKU1898 Serguei Saavedra @MIT Dieter Ebert @UniBasel & myself @UZH_en @EawagResearch. Started thinking about this topic 15 years ago during my PhD @Tvarminne; happy to see it now sees the light of day!

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Florian Altermatt

Florian Altermatt Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(