EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/23/2018 | 9:45 AM - 10:00 AM | RELATIONSHIPS BETWEEN FOREST COVER AND FISH DIVERSITY IN THE AMAZON RIVER | 330 A
RELATIONSHIPS BETWEEN FOREST COVER AND FISH DIVERSITY IN THE AMAZON RIVER
Floodplains are threatened by land cover changes, but the extent to which changes in floodplains land cover affect fish biodiversity remains unknown. We combined fish data collected in situ and satellite-mapped landscape features to evaluate how fish species with different ecological strategies and assemblage structure respond to deforestation in floodplains of the Amazon River. We surveyed 462 floodplain habitats distributed along a gradient of land cover conditions, from nearly pristine to severely deforested. Spatial patterns of fish biodiversity were strongly associated with forest cover as well as local environmental conditions associated with landscape gradients. Several species and functional groups based on life history, feeding, swimming/microhabitat-use strategies were positively associated with forest cover. Other species, including some that would be considered habitat generalists and species directly dependent on autochthonous resources (e.g., planktivores), were most common in areas dominated by herbaceous vegetation or open water habitats associated with the opposite extreme of the forest cover gradient. Beta diversity and the degree of uniqueness in species combinations within habitats also were associated with forest cover. Our results suggest that deforestation of floodplains results in spatial homogenization of fish assemblages and reduced functional diversity.
- Floodplain
- Landuse
- Trait
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Caroline Arantes
(), Michigan State University, arantes1@msu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Kirk Winemiller
(), Texas A & M University, k-winemiller@tamu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Miguel Petrere
(), Universidade Federal do Para, mpetrerejr@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Leandro Castello
(), Virginia Tech, leandro@vt.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Laura Hess
(), University of Santa Barbara, lauralhess@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Carlos Freitas
(), Universidade Federal do Amazonas, freitasc50@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -