Natural microcosms in ecology: fulfilling the promise of model systems?
Srivastava DS, Trzcinski MK, Petermann JS, Céréghino R, Farjalla VF
Urban Ecology
That rain-filled cavity in your old oak tree or the pooled water cupped in a backyard bromeliad is a functioning miniature ecosystem—and scientists are using places just like it to understand how the living world responds to environmental stress.
Some small, water-holding plants and landscape features—like bromeliads, pitcher plants, and holes in tree trunks—naturally trap tiny communities of insects, microbes, and other organisms. Scientists have been using these as miniature, real-world labs to study how nature works, from predator-prey relationships to how pollution affects communities. This review found those studies have taught us a lot, but there are still big gaps, especially around long-term changes and how invasive species disrupt these tiny worlds.
Key Findings
Of 824 studies reviewed across six natural microcosm types, only 314 (38%) used them as true model systems for testing ecological theory.
Studies most commonly focused on community-level food web and niche processes at local scales; metacommunity theory—linking local and regional dynamics—was the second most common focus.
Behavioral ecology, ecosystem-level processes, long-term dynamics, and invasive species impacts were significantly underrepresented in the literature.
chevron_right Technical Summary
Researchers reviewed 824 studies using small, self-contained natural habitats—like bromeliad pools, pitcher plants, and tree holes—as miniature laboratories to test ecological theory. They found these 'natural microcosms' have been genuinely useful for studying food webs and community dynamics, but underused for behavioral questions, long-term change, and invasive species.
Abstract Preview
Natural microcosms (NMs) have been proposed as model systems for ecology based on their ubiquity, ease of study and natural context. We assess whether this potential has been met by examining 824 s...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Want to tell us more? (optional)
Thanks for the note!
Something went wrong — please try again.
Too many submissions. Try again in an hour.
Urban Tree Canopy Reduces Heat-Related Mortality by 39% in European Cities
Trees in your local park or street aren't just pretty — they are literally keeping people alive during heatwaves, and planting even a modest number of the ri...
Bromeliaceae, members of which are called bromeliads, is a family of monocot flowering plants of about 80 genera and 3700 known species, native mainly to the tropical Americas, with several species found in the American subtropics and one in tropical west Africa, Pitcairnia feliciana.