Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna
Whether management intervention is required to control biological invasions depends primarily on demonstrating species losses resulting from such invasions. Brackens of the Pteridium genus are currently regarded as a problem species that act as important ecological filters in the assembly of invaded...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Botânica do Brasil
2015-06-01
|
| Series: | Acta Botânica Brasílica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200213&lng=en&tlng=en |
| _version_ | 1818097295040708608 |
|---|---|
| author | Natalia Guerin Giselda Durigan |
| author_facet | Natalia Guerin Giselda Durigan |
| author_sort | Natalia Guerin |
| collection | DOAJ |
| description | Whether management intervention is required to control biological invasions depends primarily on demonstrating species losses resulting from such invasions. Brackens of the Pteridium genus are currently regarded as a problem species that act as important ecological filters in the assembly of invaded communities. We investigated the effects of Pteridium arachnoideum invasion on the diversity, structure, floristic composition, and functional traits of cerradão in Assis, São Paulo, Brazil. We compared an invaded site with an adjacent non-invaded site. Bracken constrained the establishment of tree species, resulting in a community structure remarkably distinct from the non-invaded area. The density and basal area of the arboreal community were higher in non-invaded areas, but large trees were more frequent in the invaded areas. However, bracken did not reduce tree species diversity. Both richness and diversity were higher in the invaded area, indicating that over time, tree species richness and diversity naturally recovered, albeit slowly, in the invaded area. Therefore, one cannot attribute the loss of richness in the Cerrado vegetation to bracken invasion. Hence, we argue that, in this system, eradication of this invasive species is not likely to be cost effective, and thus, it should be a low management priority. |
| first_indexed | 2024-12-10T23:18:14Z |
| format | Article |
| id | doaj.art-f1675661b8834322bef6257af917358a |
| institution | Directory Open Access Journal |
| issn | 1677-941X |
| language | English |
| last_indexed | 2024-12-10T23:18:14Z |
| publishDate | 2015-06-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj.art-f1675661b8834322bef6257af917358a2022-12-22T01:29:48ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2015-06-0129221322210.1590/0102-33062014abb3722S0102-33062015000200213Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savannaNatalia GuerinGiselda DuriganWhether management intervention is required to control biological invasions depends primarily on demonstrating species losses resulting from such invasions. Brackens of the Pteridium genus are currently regarded as a problem species that act as important ecological filters in the assembly of invaded communities. We investigated the effects of Pteridium arachnoideum invasion on the diversity, structure, floristic composition, and functional traits of cerradão in Assis, São Paulo, Brazil. We compared an invaded site with an adjacent non-invaded site. Bracken constrained the establishment of tree species, resulting in a community structure remarkably distinct from the non-invaded area. The density and basal area of the arboreal community were higher in non-invaded areas, but large trees were more frequent in the invaded areas. However, bracken did not reduce tree species diversity. Both richness and diversity were higher in the invaded area, indicating that over time, tree species richness and diversity naturally recovered, albeit slowly, in the invaded area. Therefore, one cannot attribute the loss of richness in the Cerrado vegetation to bracken invasion. Hence, we argue that, in this system, eradication of this invasive species is not likely to be cost effective, and thus, it should be a low management priority.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200213&lng=en&tlng=enassembly rulesbrackenBrazilcerradãoecological filtersecosystem management |
| spellingShingle | Natalia Guerin Giselda Durigan Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna Acta Botânica Brasílica assembly rules bracken Brazil cerradão ecological filters ecosystem management |
| title | Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna |
| title_full | Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna |
| title_fullStr | Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna |
| title_full_unstemmed | Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna |
| title_short | Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna |
| title_sort | invasion impact by pteridium arachnoideum kaulf maxon dennstaedtiaceae on a neotropical savanna |
| topic | assembly rules bracken Brazil cerradão ecological filters ecosystem management |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200213&lng=en&tlng=en |
| work_keys_str_mv | AT nataliaguerin invasionimpactbypteridiumarachnoideumkaulfmaxondennstaedtiaceaeonaneotropicalsavanna AT giseldadurigan invasionimpactbypteridiumarachnoideumkaulfmaxondennstaedtiaceaeonaneotropicalsavanna |