Which species returned explained little about restored ecosystem functioning
At recovering sites, species composition explained only 2% of differences in ecosystem functions. The relationship was stronger for biomass and structure.
The key idea
The return of plant species says little about how much ecosystem functioning has returned, although the relationship was stronger for biomass and structure.
The study, in plain language
When examining a restored site, counting which species have returned is one way to measure progress. But an ecosystem also produces biomass, supports communities, and performs other functions. A team brought together studies from different continents to compare these two signals: which species were present and how well the site functioned.
At recovering sites, species composition explained only a small share of the differences in functions overall. The relationship was stronger for biomass and community structure than for other functions. The analysis suggests that functions and species do not necessarily recover at the same pace.
What they found
- Species composition had a weak relationship with the overall recovery of ecosystem functions.
- The relationship was stronger for the amount of living matter and the structure of the community.
- Counting plant species and measuring ecosystem functions are two different ways of tracking progress at a restored site.
Something to think about
If you are following a restoration project, ask what is measured besides which species have returned: how much biomass is there, and which ecosystem functions have recovered?
How they studied it
The team brought together published studies of intact ecosystems and recovering sites, and compared species composition with different measures of ecosystem functioning. They did not intervene at any site; they combined other researchers’ studies.
What the study cannot show
- The studies measured different functions and covered regions unevenly.
- The synthesis shows relationships, but does not prove that changing species causes functional recovery.
- The data do not adequately represent all ecosystems or continents.
The original study
The species composition—ecosystem function relationship: A global meta-analysis using data from intact and recovering ecosystems
Source under CC BY 4.0. English adaptation and explanation by PaperFlow, with AI assistance. The text has been reorganized for a general audience; it is not the complete paper and does not imply endorsement by its authors.
One study alone does not represent a field's consensus. Educational content does not replace professional advice. Report a possible error.
