COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE
Browse use surveys such as the twig-length method typically used to assess browsing by ungulates are time-consuming and costly. Here, we describe a modification of the twig-length method that utilizes digital photography and a Geographic Information System (GIS) technique to quantify browse shoot re...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Lakehead University
2016
|
Subjects: | |
Online Access: | https://doaj.org/article/1616c53297f04c06a51fdd090a1817b3 |
id |
ftdoajarticles:oai:doaj.org/article:1616c53297f04c06a51fdd090a1817b3 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:1616c53297f04c06a51fdd090a1817b3 2023-05-15T13:13:04+02:00 COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE Roy V. Rea Jamie D. Svendsen Hugues B. Massicotte 2016-01-01T00:00:00Z https://doaj.org/article/1616c53297f04c06a51fdd090a1817b3 EN eng Lakehead University https://alcesjournal.org/index.php/alces/article/view/161/201 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/1616c53297f04c06a51fdd090a1817b3 Alces, Vol 52, Pp 67-72 (2016) browse clipping forage gis range survey twig ungulate willow Biology (General) QH301-705.5 Ecology QH540-549.5 article 2016 ftdoajarticles 2022-12-31T03:08:17Z Browse use surveys such as the twig-length method typically used to assess browsing by ungulates are time-consuming and costly. Here, we describe a modification of the twig-length method that utilizes digital photography and a Geographic Information System (GIS) technique to quantify browse shoot removal. Linear regression analysis indicated that the cumulative shoot length (cm) and biomass removal (g) estimated with our indirect method was similar to direct measurements on Scouler’s willows (Salix scouleriana). Our results suggest that this indirect browse assessment procedure could reduce field time, presumably increase sample size and efficiency, and create a photographic record of each plant for long-term assessment of moose (Alces alces) browsing. Article in Journal/Newspaper Alces alces Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
browse clipping forage gis range survey twig ungulate willow Biology (General) QH301-705.5 Ecology QH540-549.5 |
spellingShingle |
browse clipping forage gis range survey twig ungulate willow Biology (General) QH301-705.5 Ecology QH540-549.5 Roy V. Rea Jamie D. Svendsen Hugues B. Massicotte COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
topic_facet |
browse clipping forage gis range survey twig ungulate willow Biology (General) QH301-705.5 Ecology QH540-549.5 |
description |
Browse use surveys such as the twig-length method typically used to assess browsing by ungulates are time-consuming and costly. Here, we describe a modification of the twig-length method that utilizes digital photography and a Geographic Information System (GIS) technique to quantify browse shoot removal. Linear regression analysis indicated that the cumulative shoot length (cm) and biomass removal (g) estimated with our indirect method was similar to direct measurements on Scouler’s willows (Salix scouleriana). Our results suggest that this indirect browse assessment procedure could reduce field time, presumably increase sample size and efficiency, and create a photographic record of each plant for long-term assessment of moose (Alces alces) browsing. |
format |
Article in Journal/Newspaper |
author |
Roy V. Rea Jamie D. Svendsen Hugues B. Massicotte |
author_facet |
Roy V. Rea Jamie D. Svendsen Hugues B. Massicotte |
author_sort |
Roy V. Rea |
title |
COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
title_short |
COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
title_full |
COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
title_fullStr |
COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
title_full_unstemmed |
COMBINING PHOTOGRAPHY AND A GEOGRAPHIC INFORMATION SYSTEM TO MEASURE WINTER BROWSE USE |
title_sort |
combining photography and a geographic information system to measure winter browse use |
publisher |
Lakehead University |
publishDate |
2016 |
url |
https://doaj.org/article/1616c53297f04c06a51fdd090a1817b3 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces, Vol 52, Pp 67-72 (2016) |
op_relation |
https://alcesjournal.org/index.php/alces/article/view/161/201 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/1616c53297f04c06a51fdd090a1817b3 |
_version_ |
1766255804918267904 |