A comparative study of resource allocation in Pteridium in different Brazilian ecosystems and its relationship with European studies

A comparative study of resource allocation in Pteridium in different Brazilian ecosystems and its relationship with European studies

Blog Article

Pteridium is a cosmopolitan Institutionnel - Triathlon Sherbrooke - Femme genus that acts as an invasive species in many parts of the world.Most research on this genus has occurred in Europe, and there is a lack of data on it from South America, in spite of causing considerable conservation problems.We compared the biomass allocation of P.esculentum subsp.arachnoideum in two ecosystems in Brazil - Atlantic forest and Brazilian savanna.

We measured the biomass of fronds, rhizomes and above-ground litter.We also compared the density, length and biomass of fronds from this Brazilian study with similar data of P.esculentumsubsp.arachnoideum derived from Venezuela and P.aquilinum from Europe.

P.esculentum subsp.arachnoideum showed a wide response range.We found a negative relationship between frond and necromass, indicating a negative feedback effect, while a LONG SLEEVE TOPS positive relationship was observed between frond and rhizome biomass.The continental comparison of relationships showed that Pteridium responds in a different way in both Brazil and Europe, and that in Brazil fronds tend to be longer and heavier, presumably as a result of the continuous growing season in South America while is shortened in Europe by frost.

The paper shows the ability of Pteridium to adapt to different ecosystems.