An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels
The analysis of presence-only data is a problem in determining species distributions and accurately determining population sizes. The collection of such data is common from unequal or nonrandomised effort surveys, such as those surveys conducted by citizen scientists. However, causative regression-b...
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ftdoajarticles:oai:doaj.org/article:4e83f658aa314ee3bdc1e0e1eb01594f 2024-09-09T19:47:24+00:00 An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels Louisa K. Higby Richard Stafford Chiara G. Bertulli 2012-01-01T00:00:00Z https://doi.org/10.1155/2012/428752 https://doaj.org/article/4e83f658aa314ee3bdc1e0e1eb01594f EN eng Wiley http://dx.doi.org/10.1155/2012/428752 https://doaj.org/toc/1687-8477 https://doaj.org/toc/1687-8485 1687-8477 1687-8485 doi:10.1155/2012/428752 https://doaj.org/article/4e83f658aa314ee3bdc1e0e1eb01594f International Journal of Zoology, Vol 2012 (2012) Zoology QL1-991 article 2012 ftdoajarticles https://doi.org/10.1155/2012/428752 2024-08-05T17:48:38Z The analysis of presence-only data is a problem in determining species distributions and accurately determining population sizes. The collection of such data is common from unequal or nonrandomised effort surveys, such as those surveys conducted by citizen scientists. However, causative regression-based methods have been less well examined using presence-only data. In this study, we examine a range of predictive factors which might influence Cetacean sightings (specifically minke whale sightings) from whale-watching vessels in Faxaflói Bay in Iceland. In this case, environmental variables were collected regularly regardless of whether sightings were recorded. Including absences as well as presence in the analysis resulted in a multiple-generalised linear regression model with significantly more explanatory power than when data were presence only. However, by including extra information on the sightings of the whales, in this case, their observed behaviour when the sighting occurred resulted in a significantly improved model over the presence-only data model. While there are limitations of conducting nonrandomised surveys for the use of predictive models such as regression, presence-only data should not be considered as worthless, and the scope of collection of these data by citizen scientists using modern technology should not be underestimated. Article in Journal/Newspaper Iceland minke whale Directory of Open Access Journals: DOAJ Articles Faxaflói ENVELOPE(-22.451,-22.451,64.322,64.322) International Journal of Zoology 2012 1 5 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zoology QL1-991 |
spellingShingle |
Zoology QL1-991 Louisa K. Higby Richard Stafford Chiara G. Bertulli An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
topic_facet |
Zoology QL1-991 |
description |
The analysis of presence-only data is a problem in determining species distributions and accurately determining population sizes. The collection of such data is common from unequal or nonrandomised effort surveys, such as those surveys conducted by citizen scientists. However, causative regression-based methods have been less well examined using presence-only data. In this study, we examine a range of predictive factors which might influence Cetacean sightings (specifically minke whale sightings) from whale-watching vessels in Faxaflói Bay in Iceland. In this case, environmental variables were collected regularly regardless of whether sightings were recorded. Including absences as well as presence in the analysis resulted in a multiple-generalised linear regression model with significantly more explanatory power than when data were presence only. However, by including extra information on the sightings of the whales, in this case, their observed behaviour when the sighting occurred resulted in a significantly improved model over the presence-only data model. While there are limitations of conducting nonrandomised surveys for the use of predictive models such as regression, presence-only data should not be considered as worthless, and the scope of collection of these data by citizen scientists using modern technology should not be underestimated. |
format |
Article in Journal/Newspaper |
author |
Louisa K. Higby Richard Stafford Chiara G. Bertulli |
author_facet |
Louisa K. Higby Richard Stafford Chiara G. Bertulli |
author_sort |
Louisa K. Higby |
title |
An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
title_short |
An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
title_full |
An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
title_fullStr |
An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
title_full_unstemmed |
An Evaluation of Ad Hoc Presence-Only Data in Explaining Patterns of Distribution: Cetacean Sightings from Whale-Watching Vessels |
title_sort |
evaluation of ad hoc presence-only data in explaining patterns of distribution: cetacean sightings from whale-watching vessels |
publisher |
Wiley |
publishDate |
2012 |
url |
https://doi.org/10.1155/2012/428752 https://doaj.org/article/4e83f658aa314ee3bdc1e0e1eb01594f |
long_lat |
ENVELOPE(-22.451,-22.451,64.322,64.322) |
geographic |
Faxaflói |
geographic_facet |
Faxaflói |
genre |
Iceland minke whale |
genre_facet |
Iceland minke whale |
op_source |
International Journal of Zoology, Vol 2012 (2012) |
op_relation |
http://dx.doi.org/10.1155/2012/428752 https://doaj.org/toc/1687-8477 https://doaj.org/toc/1687-8485 1687-8477 1687-8485 doi:10.1155/2012/428752 https://doaj.org/article/4e83f658aa314ee3bdc1e0e1eb01594f |
op_doi |
https://doi.org/10.1155/2012/428752 |
container_title |
International Journal of Zoology |
container_volume |
2012 |
container_start_page |
1 |
op_container_end_page |
5 |
_version_ |
1809916857573965824 |