loading page

Assessing invertebrate-mediated herbivory in canopies across a gradient of human-modified tropical forests
  • +4
  • Julia Barreto,
  • Erika Berenguer,
  • Joice Ferreira,
  • Carlos Joly,
  • Yadvinder Malhi,
  • Marina de Seixas,
  • Jos Barlow
Julia Barreto
Universidade Federal de Lavras
Author Profile
Erika Berenguer
University of Oxford
Author Profile
Joice Ferreira
Embrapa Amazônia Oriental
Author Profile
Carlos Joly
State University of Campinas/UNICAMP
Author Profile
Yadvinder Malhi
University of Oxford
Author Profile
Marina de Seixas
Embrapa Amazônia Oriental
Author Profile
Jos Barlow
Universidade Federal de Lavras
Author Profile

Abstract

1. Studies on the effects of human-driven forest disturbance usually focus on either biodiversity or carbon dynamics but much less is known about ecosystem processes that integrate trophic levels. Herbivory is one fundamental ecological process for ecosystem functioning that remains underexplored and is poorly quantified in human-modified tropical rainforests. 2. Here, we present the results of the largest study to date on the impacts of human disturbances on herbivory. We quantified the incidence and severity of herbivory caused by chewers, miners and gall-formers in 199,869 canopy leaf blades from 1,102 trees distributed across 20 forest plots located along a gradient of human disturbance in the Amazon. 3. We found that chewers dominated herbivory incidence, yet were not a good predictor of the other forms of herbivory either at the stem or plot level. Herbivory severity was correlated with disturbance intensity, being greater at more disturbed sites. 4. Synthesis. Although our large-scale study of canopy herbivory in Amazonian forests suggests that human disturbance increases the severity of leaf herbivory, effects were weak. Additionally, we found no effect of human disturbance in incidence of leaf herbivory. These results combined indicate that herbivory is a relatively resilient process to human impacts.

Peer review status:ACCEPTED

29 Jun 2020Submitted to Ecology and Evolution
05 Jul 2020Submission Checks Completed
05 Jul 2020Assigned to Editor
06 Jul 2020Reviewer(s) Assigned
18 Jul 2020Review(s) Completed, Editorial Evaluation Pending
24 Jul 2020Editorial Decision: Revise Minor
02 Oct 20201st Revision Received
05 Oct 2020Assigned to Editor
05 Oct 2020Submission Checks Completed
05 Oct 2020Review(s) Completed, Editorial Evaluation Pending
13 Oct 2020Editorial Decision: Revise Minor
14 Jan 20212nd Revision Received
15 Jan 2021Submission Checks Completed
15 Jan 2021Assigned to Editor
15 Jan 2021Review(s) Completed, Editorial Evaluation Pending
25 Jan 2021Editorial Decision: Accept