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Vincent Lecours
University of Florida
13Publications
6H-index
132Citations
Publications 13
Newest
#1Vítězslav Moudrý (CULS: Czech University of Life Sciences Prague)H-Index: 6
#2Vincent Lecours (UF: University of Florida)H-Index: 6
Last.Jan Wild (CULS: Czech University of Life Sciences Prague)H-Index: 19
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Abstract Terrain attributes (e.g., slope, rugosity) derived in Geographic Information Systems (GIS) from digital terrain models (DTMs) are widely used in both terrestrial and marine ecological studies due to their potential to act as surrogates of species distribution. However, the spatial resolution of DTMs is often altered to match the scale at which species observations were collected. Here, we highlight the significance of adequately reporting the methods used to derive terrain attributes fr...
#1Lukáš Gábor (CULS: Czech University of Life Sciences Prague)H-Index: 1
#2Vítězslav Moudrý (CULS: Czech University of Life Sciences Prague)H-Index: 6
Last.Vincent Lecours (UF: University of Florida)H-Index: 6
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ABSTRACTSpecies distribution models (SDMs) are widely used in ecology and conservation. However, their performance is known to be affected by a variety of factors related to species occurrence characteristics. In this study, we used a virtual species approach to overcome the difficulties associated with testing of combined effects of those factors on performance of presence-only SDMs when using real data. We focused on the individual and combined roles of factors related to response variable (i....
#1Vítězslav Moudrý (CULS: Czech University of Life Sciences Prague)H-Index: 6
#2Vincent Lecours (UF: University of Florida)H-Index: 6
Last.Jan Wild (CULS: Czech University of Life Sciences Prague)H-Index: 19
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It is now widely acknowledged that the increasing availability of remotely sensed data facilitates ecological modelling. Digital elevation models (DEMs) are arguably one of the most common remote sensing products used in this context. Topographic indices (e.g. slope, orientation, rugosity) derived from DEMs are widely used as surrogates for field-measured environmental variables. Available global DEMs, such as those from the shuttle radar topography mission (SRTM), however, do not provide inform...
#1Kwanmok Kim (UF: University of Florida)
#2Vincent Lecours (UF: University of Florida)H-Index: 6
Last.Peter C. Frederick (UF: University of Florida)H-Index: 27
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#1Benjamin Misiuk (MUN: Memorial University of Newfoundland)
#2Vincent Lecours (UF: University of Florida)H-Index: 6
Last.Trevor Bell (MUN: Memorial University of Newfoundland)H-Index: 15
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Benthic habitat maps, including maps of seabed sediments, have become critical spatialdecision support tools for marine ecological management and conservation. Despite the increasing recognition that environmental variables should be considered at multiple spatial scales, variables used in habitat mapping are often implemented at a single scale. The objective of this study was to evaluate the potential for using environmental variables at multiple scales for modelling and mapping seabed sediment...
#1Vincent Lecours (UF: University of Florida)H-Index: 6
#2Rodolphe Devillers (MUN: Memorial University of Newfoundland)H-Index: 17
Last.Vl Lucieer (UTAS: University of Tasmania)H-Index: 12
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Remote sensing techniques are currently the main methods providing elevation data used to produce Digital Terrain Models (DTM). Terrain attributes (e.g. slope, orientation, rugosity) derived from DTMs are commonly used as surrogates of species or habitat distribution in ecological studies. While DTMs’ errors are known to propagate to terrain attributes, their impact on ecological analyses is however rarely documented. This study assessed the impact of data acquisition artefacts on habitat maps a...
#1Vincent Lecours (UF: University of Florida)H-Index: 6
Conservation planning and management typically require accurate and spatially explicit data at scales that are relevant for conservation objectives. In marine conservation, these data are often combined with spatial analytical techniques to produce marine habitat maps. While marine habitat mapping is increasingly used to inform conservation efforts, this field is still relatively young and its methods are rapidly evolving. Because conservation efforts do not always specify standards or guideline...
#1Vincent Lecours (UF: University of Florida)H-Index: 6
#2Rodolphe Devillers (MUN: Memorial University of Newfoundland)H-Index: 17
Last.Craig J. Brown (MUN: Memorial University of Newfoundland)H-Index: 20
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Data acquisition artefacts are commonly found in multibeam bathymetric data, but their effects on mapping methodologies using geographic information system techniques have not been widely explored. Artefacts have been extensively studied in terrestrial settings, but their study in a marine context has currently been limited to engineering and surveying technology development in order to reduce their amplitude during data collection and postprocessing. Knowledge on how they propagate to further a...
#1Vincent Lecours (MUN: Memorial University of Newfoundland)H-Index: 6
#2Rodolphe Devillers (MUN: Memorial University of Newfoundland)H-Index: 17
Last.Craig J. Brown (MUN: Memorial University of Newfoundland)H-Index: 20
view all 5 authors...
Terrain attributes (e.g. slope, rugosity) derived from digital terrain models are commonly used in environmental studies. The increasing availability of GIS tools that generate those attributes can lead users to select a sub-optimal combination of terrain attributes for their applications. Our objectives were to identify sets of terrain attributes that best capture terrain properties and to assess how they vary with surface complexity. 230 tools from 11 software packages were used to derive terr...
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