The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves

<p style="margin-bottom: 0cm; line-height: 100%;">Thankfully, the days when specimen localities could be described in extremely vague terms such as “Peru” or “Indochina” are long gone. But the pendulum has swung too far the other way. Latitude and longitude data of specimens and stud...

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Main Author: Shai Meiri
Format: Article
Language:English
Published: Pensoft Publishers 2018-08-01
Series:Frontiers of Biogeography
Subjects:
Online Access:http://escholarship.org/uc/item/2n3349jg
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author Shai Meiri
author_facet Shai Meiri
author_sort Shai Meiri
collection DOAJ
description <p style="margin-bottom: 0cm; line-height: 100%;">Thankfully, the days when specimen localities could be described in extremely vague terms such as “Peru” or “Indochina” are long gone. But the pendulum has swung too far the other way. Latitude and longitude data of specimens and study areas (such as small nature reserves) are nowadays commonly reported to the 0.000001 of a degree (or 0.01 of a second) or even more “precisely”. This is done either because of converting across measurement systems or because hand-held devices and internet sources provide this kind of precision. We probably report this degree of precision because we are reluctant to round – feeling it would make the data better and more “scientific”. I point out the scale referred to by different degrees of geographic precision (e.g., ~10cm for 6 decimal places) and argue that such degree of precision is false for two reasons: first, it is finer than actually achievable by hand held devices such as smartphones and GPS receivers (and much finer than we can tell from a map). Second, for large animals, such precision can refer to one part of the organism, and not another. I urge scientists to use simple reality checks when reporting latitude and longitude data and report precision at meaningful scales.</p>
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spelling doaj-art-4dfa9142c1b5459cb1b0d487aabe6a052025-08-20T03:52:04ZengPensoft PublishersFrontiers of Biogeography1948-65962018-08-01101-210.21425/F5FBG38642ark:13030/qt2n3349jgThe smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselvesShai Meiri0School of Zoology, Tel Aviv University, 6997801, Tel Aviv, Israel; Steinhardt Museum of Natural History, Tel Aviv University, 6997801, Tel Aviv, Israel<p style="margin-bottom: 0cm; line-height: 100%;">Thankfully, the days when specimen localities could be described in extremely vague terms such as “Peru” or “Indochina” are long gone. But the pendulum has swung too far the other way. Latitude and longitude data of specimens and study areas (such as small nature reserves) are nowadays commonly reported to the 0.000001 of a degree (or 0.01 of a second) or even more “precisely”. This is done either because of converting across measurement systems or because hand-held devices and internet sources provide this kind of precision. We probably report this degree of precision because we are reluctant to round – feeling it would make the data better and more “scientific”. I point out the scale referred to by different degrees of geographic precision (e.g., ~10cm for 6 decimal places) and argue that such degree of precision is false for two reasons: first, it is finer than actually achievable by hand held devices such as smartphones and GPS receivers (and much finer than we can tell from a map). Second, for large animals, such precision can refer to one part of the organism, and not another. I urge scientists to use simple reality checks when reporting latitude and longitude data and report precision at meaningful scales.</p>http://escholarship.org/uc/item/2n3349jgbiogeographyspatial precisiondecimal degreesGoogle mapsGPS smartphones
spellingShingle Shai Meiri
The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
Frontiers of Biogeography
biogeography
spatial precision
decimal degrees
Google maps
GPS smartphones
title The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
title_full The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
title_fullStr The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
title_full_unstemmed The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
title_short The smartphone fallacy – when spatial data are reported at spatial scales finer than the organisms themselves
title_sort smartphone fallacy when spatial data are reported at spatial scales finer than the organisms themselves
topic biogeography
spatial precision
decimal degrees
Google maps
GPS smartphones
url http://escholarship.org/uc/item/2n3349jg
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