> ## Content Index
> Fetch the complete content index at: https://intelligence.wildlandseco.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# More macrophyte litter changed carbon processing without speeding litter disappearance
- URL: https://intelligence.wildlandseco.com/2026-09-19-macrophyte-litter-carbon-processing/
- Published: 2026-09-19T15:57:03.000Z
- Updated: 2026-09-19T16:12:12.000Z
- Description: In 410 Brazilian lagoon microcosms, litter richness reduced microbial respiration but did not change dry-mass loss, while species identity still mattered.
- Author: Benjamin Worlund
- Tags: macrophytes, decomposition, microbial respiration, freshwater carbon, Brazil, litter diversity, Water, Climate, Community ecology, Methods, #ecological-intelligence, #brief-2026-09-19, #global-radar, #peer-reviewed, #geo-latin-america-caribbean

Evidence

Peer-reviewed

Geography

Cabiúnas Lagoon, Rio de Janeiro State, Brazil

System

Macrophyte-dominated shallow lake and wetland detrital food webs

## WHAT THE EVIDENCE SAYS

A 48-day experiment tested all possible one-, two-, four- and six-species mixtures drawn from eight aquatic macrophytes. Increasing litter richness reduced cumulative microbial respiration and increased metabolic efficiency without changing dry-weight loss, while species composition and chemical diversity helped explain non-additive responses.

## WHY IT MATTERS / OUR READ

Decomposition metrics are not interchangeable. The same amount of litter can disappear while carbon is partitioned differently between respiration and retained organic matter, so mass loss alone can miss a change in ecosystem carbon processing.

## CAVEATS / UNCERTAINTY

This was a controlled microcosm experiment using standardized, ground litter and lagoon water rather than intact field detritus. Several species required non-senescent leaves, and 48-day microbial responses do not establish whole-ecosystem carbon balance.

## SOURCE

Aquatic Ecology  
[View original evidence ↗](https://link.springer.com/article/10.1007/s10452-026-10362-7?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-09-19

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-09-19/)