Are Algae Relevant to the Detritus-Based Food Web in Tank-Bromeliads?
2011

Are Algae Important in the Food Web of Tank-Bromeliads?

Sample size: 55 publication 10 minutes Evidence: moderate

Author Information

Author(s): Brouard Olivier, Le Jeune Anne-Hélène, Leroy Céline, Cereghino Régis, Roux Olivier, Pelozuelo Laurent, Dejean Alain, Corbara Bruno, Carrias Jean-François

Primary Institution: Université Blaise Pascal, UMR CNRS 6023, Aubière, France

Hypothesis

The occurrence of algae would increase with greater exposure of the plants to sunlight, leading to the existence of an autotrophic pathway.

Conclusion

Algae are a significant part of the food web in exposed tank-bromeliads and may form the basis of a non-detrital food web.

Supporting Evidence

  • Algae were found in all five species of tank-bromeliads sampled.
  • Algal densities were significantly higher in the tanks of Catopsis berteroniana compared to other species.
  • Algae represented up to 30 percent of the living microbial carbon in exposed bromeliads.

Takeaway

This study found that algae live in water held by certain plants called bromeliads, and they help feed tiny animals like mosquito larvae.

Methodology

The study involved sampling water from bromeliads, measuring environmental conditions, and analyzing microbial communities.

Limitations

The study was limited to specific bromeliad species and environmental conditions in a single rainforest area.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0020129

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