EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/22/2018 | 3:00 PM - 3:15 PM | THE ROLE OF FOREST REMNANTS IN MAINTAINING STREAM ECOSYSTEM INTEGRITY: THE PENETRANCE EFFECT. | 410 B
THE ROLE OF FOREST REMNANTS IN MAINTAINING STREAM ECOSYSTEM INTEGRITY: THE PENETRANCE EFFECT.
Riparian corridors in contemporary landscapes are characterized by a mosaic of vegetation patches resulting from a variety of human activities. Forest fragmentation is known to cause edge responses that are key to understanding the influence of landscape structure on habitat quality. Since streams are transport-dominated ecosystems, it is unlikely that changes in instream conditions map synchronously with the spatial pattern of riparian fragmentation. Local riparian influences are likely to be propagated some distance downstream, creating a downstream 'shadow' of upstream riparian conditions. Here we present a method to estimate these penetrance effects on a suite of environmental variables and invertebrate communities from 4 sampled transitions (2 in SE Brazil, 2 in Colorado, USA). We employed a threshold modelling approach based on alternative nonlinear models. Inverse estimation was applied to determine the distance in which the variables started to shift from upstream stable conditions and how far the buffering effects of the upstream riparian condition could be detected. We find that the method is suited for detecting downstream effects of riparian vegetation, and evidence riparian vegetation potential on both restoring upstream degraded conditions and maintaining downstream conditions through abrupt riparian discontinuities.
- Landuse
- Riparian
- Spatial
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
Rafael Feijó de Lima
(), University of Montana, rafael.feijo@mso.umt.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Steven Thomas
(), School of Natural Resources, University of Nebraska-Lincoln, Lincoln, sthomas5@unl.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Eduardo F. Silva-Júnior
(), Universidade do Estado do Rio de Janeiro, eduardobioadventure@gmail.com ;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Leonardo Kleba Lisboa
(), Universidade do Estado do Rio de Janeiro, leokleba@yahoo.com.br;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Timothy P. Moulton
(), Universidade do Estado do Rio de Janeiro, moulton.timothy@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Scott Mcleay
(), University of Alabama, smcleay27@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Eugenia Zandona
(), Universidade do Estado do Rio de Janeiro, eugenia.zandona@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -