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Wallis, C.; Paulsch, D.; Zeilinger, J.; Silva, B.; Curatola Fern&aacute;ndez, G.F.; Brandl, R.; Farwig, N. &amp; Bendix, J. (2016): <b>Contrasting performance of Lidar and optical texture models in predicting avian diversity in a tropical mountain forest</b>. <i>Remote Sensing of Environment</i> <b>174</b>, 223-232.

Resource Description

Title: Contrasting performance of Lidar and optical texture models in predicting avian diversity in a tropical mountain forest
FOR816dw ID: 1424
Publication Date: 2016-03-01
License and Usage Rights: PAK 823-825 data user agreement. (www.tropicalmountainforest.org/dataagreementp3.do)
Resource Owner(s):
Individual: Christine Wallis
Contact:
Individual: Detlev Paulsch
Contact:
Individual: Joerg Zeilinger
Contact:
Individual: Brenner Silva
Contact:
Individual: Giulia F. Curatola Fernández
Contact:
Individual: Roland Brandl
Contact:
Individual: Nina Farwig
Contact:
Individual: Joerg Bendix
Contact:
Abstract:
Ecosystems worldwide are threatened by the increasing impact of land use and climate change. To protect their diversity and functionality, spatially explicit monitoring systems are needed. In remote areas, monitoring is difficult and recurrent field surveys are costly. By using Lidar or themore cost-effective and repetitive optical satellite data, remote sensing could provide proxies for habitat structure supporting measures for the conservation of biodiversity. Here we compared the explanatory power of both, airborne Lidar and optical satellite data in modeling the spatial distribution of biodiversity of birds across a complex tropical mountain forest ecosystem in southeastern Ecuador. Weused data fromfield surveys of birds and chose three measures as proxies for different aspects of diversity: (i) Shannon diversity as a measure of ?-diversity that also includes the relative abundance of species, (ii) phylodiversity as a first proxy for functional diversity, and (iii) community composition as a proxy for combined ?- and ?-diversity.We modeled these diversity estimates using partial least-square regression of Lidar and optical texturemetrics separately and compared themodels using a leave-one-out validated R2 and rootmean square error. Bird community informationwas best predicted by both remote sensing datasets, followed by Shannon diversity and phylodiversity. Our findings reveal a high potential of optical texture metrics for predicting Shannon diversity and ameasure of community composition, but not for modeling phylodiversity.<br/> Generalizing from the investigated tropical mountain ecosystem, we conclude that texture information retrieved frommultispectral data of operational satellite systems could replace costly airborne laser-scanning formodeling certain aspects of biodiversity.
Keywords:
| Biodiversity | Southern Ecuador | beta diversity | Lidar | Quickbird | Phylodiversity | Alpha diversity | Shannon diversity | Community composition | Birds | Partial least-square regression | Gray level co-occurrence matrix |
Literature type specific fields:
ARTICLE
Journal: Remote Sensing of Environment
Volume: 174
Page Range: 223-232
ISSN: 00344257
Metadata Provider:
Individual: Christine Wallis
Contact:
Online Distribution:
Download File: http://www.lcrs.de/publications.do?citid=1424


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