A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States
Abstract Line transect based abundance estimation is complicated for long‐finned (LFPW, Globicephala melas ) and short‐finned (SFPW, G. macrorhynchus ) pilot whales because of their similarity in appearance and their overlapping summertime range in some areas. We developed a photograph‐based approac...
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crwiley:10.1111/j.1748-7692.2011.00488.x 2023-12-03T10:28:01+01:00 A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States Rone, Brenda K. Pace, III, Richard M. 2011 http://dx.doi.org/10.1111/j.1748-7692.2011.00488.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2011.00488.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2011.00488.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 28, issue 2, page 254-275 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2011 crwiley https://doi.org/10.1111/j.1748-7692.2011.00488.x 2023-11-09T13:27:47Z Abstract Line transect based abundance estimation is complicated for long‐finned (LFPW, Globicephala melas ) and short‐finned (SFPW, G. macrorhynchus ) pilot whales because of their similarity in appearance and their overlapping summertime range in some areas. We developed a photograph‐based approach to distinguish between species of free‐ranging pilot whales in the northwest Atlantic. We collected skin samples and photographs during the summers of 2004–2007 and used skin samples to distinguish species based on mitochondrial DNA. Relative morphometric measurements from photographs were examined using mixed‐effect models and logistic regression. The best model among 94 candidate models had an overall classification error rate of 2.5%. We tested the presence/absence of pigmentation in four regions of the dorsal body (melon, eye, cape, and saddle) for differences. Pigmentation was present in all four regions in 100% of the SFPWs sampled. Melon patch, blaze, and saddle patch pigmentation were present in 6%, 68%, and 50%, respectively, of the LFPWs, but the cape was completely absent. Both types of analyses provided positive species discrimination of free‐ranging animals. We created a cost‐effective, simple tool which could ultimately assist in providing appropriate management, mitigation, and conservation strategies for both northwest Atlantic species of pilot whales. Article in Journal/Newspaper Northwest Atlantic Wiley Online Library (via Crossref) Marine Mammal Science 28 2 254 275 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Rone, Brenda K. Pace, III, Richard M. A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Line transect based abundance estimation is complicated for long‐finned (LFPW, Globicephala melas ) and short‐finned (SFPW, G. macrorhynchus ) pilot whales because of their similarity in appearance and their overlapping summertime range in some areas. We developed a photograph‐based approach to distinguish between species of free‐ranging pilot whales in the northwest Atlantic. We collected skin samples and photographs during the summers of 2004–2007 and used skin samples to distinguish species based on mitochondrial DNA. Relative morphometric measurements from photographs were examined using mixed‐effect models and logistic regression. The best model among 94 candidate models had an overall classification error rate of 2.5%. We tested the presence/absence of pigmentation in four regions of the dorsal body (melon, eye, cape, and saddle) for differences. Pigmentation was present in all four regions in 100% of the SFPWs sampled. Melon patch, blaze, and saddle patch pigmentation were present in 6%, 68%, and 50%, respectively, of the LFPWs, but the cape was completely absent. Both types of analyses provided positive species discrimination of free‐ranging animals. We created a cost‐effective, simple tool which could ultimately assist in providing appropriate management, mitigation, and conservation strategies for both northwest Atlantic species of pilot whales. |
format |
Article in Journal/Newspaper |
author |
Rone, Brenda K. Pace, III, Richard M. |
author_facet |
Rone, Brenda K. Pace, III, Richard M. |
author_sort |
Rone, Brenda K. |
title |
A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
title_short |
A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
title_full |
A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
title_fullStr |
A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
title_full_unstemmed |
A simple photograph‐based approach for discriminating between free‐ranging long‐finned ( Globicephala melas ) and short‐finned ( G. macrorhynchus ) pilot whales off the east coast of the United States |
title_sort |
simple photograph‐based approach for discriminating between free‐ranging long‐finned ( globicephala melas ) and short‐finned ( g. macrorhynchus ) pilot whales off the east coast of the united states |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2011.00488.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2011.00488.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2011.00488.x |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Marine Mammal Science volume 28, issue 2, page 254-275 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2011.00488.x |
container_title |
Marine Mammal Science |
container_volume |
28 |
container_issue |
2 |
container_start_page |
254 |
op_container_end_page |
275 |
_version_ |
1784278016785907712 |