Cited by 110Bat Biology and Ecology StudiesWildlife Ecology and ConservationRemote Sensing and LiDAR Applications

From field surveys to LiDAR: Shining a light on how bats respond to forest structure

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Froidevaux, Jérémy S.P., Zellweger, Florian, Bollmann, Kurt, Jones, Gareth, Obrist, Martin K.·2016·Remote Sensing of Environment

Abstract

Detailed information about three-dimensional vegetation structure proves increasingly useful for studying species-habitat relationships in forest ecosystems. This particularly applies to species that make extensive use of the three-dimensional habitat space in forests, such as bats. Bats show considerable variation in flight morphology and echolocation traits that are shaped by habitat features, and are excellent model taxa for investigating relationships between vegetation structure and animal occurrence and movement. The aims of this study were (1) to investigate the relationship between the activity of bats and forest structure and (2) to compare the performance of airborne Light Detection and Ranging (LiDAR) and terrestrial field surveys for measuring habitat features in a representative sample of mixed and deciduous forests in the Swiss lowlands. Leaf-on and leaf-off LiDAR data were used separately, as well as in combination, to evaluate the relative strength of these datasets to describe 3D canopy architecture and vertical forest structure. Field measurements included structural variables such as leaf area index (LAI), vertical layering, snags, as well as shrub and ground vegetation cover. We recorded 145,433 echolocation call sequences from bats and assigned them into three echolocation guilds (short-, mid- and long-range echolocators; SRE, MRE, LRE, respectively) treating separately the dominant species (Pipistrellus pipistrellus; Pp). We used generalized linear mixed models (GLMMs) and applied an information-theoretic approach to assess relationships between guild-specific activity patterns of bats and forest structure in the forest interior, as well as in forest gaps. Standardized coefficients were used to evaluate variable effect sizes and relative importance. We found that guild-specific bat activity was clearly related to 3D forest structure. The activity of SRE, MRE and Pp bats was negatively affected by foliage height diversity, indicating that a large scatter of vegetation elements along 3D forest profiles may restrict accessibility for manoeuvrable bats. Outer canopy surface ruggedness was significantly and positively related to the activity of MRE and LRE bats, as well as Pp, all of which may profit from increased canopy surface ruggedness for foraging (food abundance) and commuting (cover) purposes. The highest variable effect sizes were obtained by combining leaf-on and leaf-off LiDAR data. Leaf-off outperformed leaf-on data, particularly in describing foliage height diversity. LiDAR provided information about bat habitat structure in forests that is not readily available from field surveys. LiDAR thus increases the scope of inference for future investigations of how species respond to vegetation structure, which can now readily and contiguously be assessed at relevant grain sizes and across large areas.

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  • 3D spatial reconstructions shed light on the impact of forest structures on bat behavior.

    “3D spatial reconstructions shed light on the impact of forest structures on bat behavior115.”

    From Perspectives in machine learning for wildlife conservation (2022) · cites this paper as [115]

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Authors
Froidevaux, J. S. P., Zellweger, F., Bollmann, K., Jones, G., & Obrist, M. K.
Affiliations
  • Swiss Federal Institute for Forest, Snow and Landscape Research (CH)
  • University of Bristol (GB)
Corresponding author
Zellweger, Florian
Venue
Remote Sensing of Environment
Publisher
Elsevier BV
Published
2016-03
Volume
175
Pages
242-250
ISSN
0034-4257 (ISSN-L)
OpenAlex
W2461146225
Cited by
110
References
72
Citations by year
2026: 9 · 2025: 12 · 2024: 13 · 2023: 11 · 2022: 11 · 2021: 14 · 2020: 8 · 2019: 12 · 2018: 12 · 2017: 3 · 2016: 5
FWCI
11.69
Type
journal article
Language
en
Locations
  • Remote Sensing of Environment (publishedVersion)
  • Explore Bristol Research (publishedVersion, other-oa)
  • DORA WSL (Swiss Federal Institute for Forest, Snow and Landscape Research) (submittedVersion, other-oa)
  • HAL (submittedVersion)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (146786)
  • Directorate for Biological Sciences
  • U.S. Forest Service
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Bat Biology and Ecology Studies
  • Physical Sciences › Environmental Science › Ecology › Wildlife Ecology and Conservation
  • Physical Sciences › Environmental Science › Environmental Engineering › Remote Sensing and LiDAR Applications
Keywords
bats, forest structure, LiDAR, echolocation, Pipistrellus pipistrellus, canopy structure, foliage height diversity, leaf area index, forest gaps, species-habitat relationships, bat activity patterns, snags

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