DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY?
A bstract Photoperiod variations are the principal environmental signals entraining circannual activity in mammals, which is also believed to be influenced by changes in temperature and nutrition. Control of the molt in phocids has not been extensively studied with experimental manipulations of envi...
Published in: | Marine Mammal Science |
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Online Access: | http://dx.doi.org/10.1111/j.1748-7692.2000.tb00952.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2000.tb00952.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2000.tb00952.x |
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crwiley:10.1111/j.1748-7692.2000.tb00952.x 2023-12-03T10:23:45+01:00 DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? Mo, Giulia Gili, Claudia Ferrando, Paola 2000 http://dx.doi.org/10.1111/j.1748-7692.2000.tb00952.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2000.tb00952.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2000.tb00952.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 16, issue 3, page 570-577 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2000 crwiley https://doi.org/10.1111/j.1748-7692.2000.tb00952.x 2023-11-09T13:54:54Z A bstract Photoperiod variations are the principal environmental signals entraining circannual activity in mammals, which is also believed to be influenced by changes in temperature and nutrition. Control of the molt in phocids has not been extensively studied with experimental manipulations of environmental factors, but substantial work indicates that photoperiod has a primary influence on mammalian breeding and furring mechanisms. Studies were under taken to reestablish the molt cycle in five harbor seals ( Phoca vitulina ) previously kept in an enclosed facility with a limited air/water temperature gradient and artificial photoperiod. The seals were exposed to an extended temperature gradient during the first period of study, and no molting was observed. The second period of study was characterized by a natural occurring photoperiod of 8 h 53 min light (L)/15 h 07 min dark (D) and a maximal 15 h 31 min L/8h 29 min D duration, and molting occurred in all individuals. These results suggest a prevalent influence of photoperiod variation on the harbor seal molt. Article in Journal/Newspaper harbor seal Phoca vitulina Wiley Online Library (via Crossref) Marine Mammal Science 16 3 570 577 |
institution |
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 Mo, Giulia Gili, Claudia Ferrando, Paola DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract Photoperiod variations are the principal environmental signals entraining circannual activity in mammals, which is also believed to be influenced by changes in temperature and nutrition. Control of the molt in phocids has not been extensively studied with experimental manipulations of environmental factors, but substantial work indicates that photoperiod has a primary influence on mammalian breeding and furring mechanisms. Studies were under taken to reestablish the molt cycle in five harbor seals ( Phoca vitulina ) previously kept in an enclosed facility with a limited air/water temperature gradient and artificial photoperiod. The seals were exposed to an extended temperature gradient during the first period of study, and no molting was observed. The second period of study was characterized by a natural occurring photoperiod of 8 h 53 min light (L)/15 h 07 min dark (D) and a maximal 15 h 31 min L/8h 29 min D duration, and molting occurred in all individuals. These results suggest a prevalent influence of photoperiod variation on the harbor seal molt. |
format |
Article in Journal/Newspaper |
author |
Mo, Giulia Gili, Claudia Ferrando, Paola |
author_facet |
Mo, Giulia Gili, Claudia Ferrando, Paola |
author_sort |
Mo, Giulia |
title |
DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
title_short |
DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
title_full |
DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
title_fullStr |
DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
title_full_unstemmed |
DO PHOTOPERIOD AND TEMPERATURE INFLUENCE THE MOLT CYCLE OF PHOCA VITULINA IN CAPTIVITY? |
title_sort |
do photoperiod and temperature influence the molt cycle of phoca vitulina in captivity? |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2000.tb00952.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2000.tb00952.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2000.tb00952.x |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_source |
Marine Mammal Science volume 16, issue 3, page 570-577 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2000.tb00952.x |
container_title |
Marine Mammal Science |
container_volume |
16 |
container_issue |
3 |
container_start_page |
570 |
op_container_end_page |
577 |
_version_ |
1784272000385024000 |