Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland
The breeding biology and behavior of the Common Murre (Uria aalge aalge (Pont.)) was studied on Gull Island, Newfoundland during May through July in 1977 and 1978. -- The origin of the Gull Island population was discussed as were the ledge population changes recorded over the breeding season. Reason...
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
Memorial University of Newfoundland
1979
|
Subjects: | |
Online Access: | https://research.library.mun.ca/4214/ https://research.library.mun.ca/4214/1/Mahoney_ShanePatrick.pdf https://research.library.mun.ca/4214/3/Mahoney_ShanePatrick.pdf |
id |
ftmemorialuniv:oai:research.library.mun.ca:4214 |
---|---|
record_format |
openpolar |
spelling |
ftmemorialuniv:oai:research.library.mun.ca:4214 2023-10-01T03:55:26+02:00 Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland Mahoney, Shane Patrick 1979 application/pdf https://research.library.mun.ca/4214/ https://research.library.mun.ca/4214/1/Mahoney_ShanePatrick.pdf https://research.library.mun.ca/4214/3/Mahoney_ShanePatrick.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/4214/1/Mahoney_ShanePatrick.pdf https://research.library.mun.ca/4214/3/Mahoney_ShanePatrick.pdf Mahoney, Shane Patrick <https://research.library.mun.ca/view/creator_az/Mahoney=3AShane_Patrick=3A=3A.html> (1979) Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1979 ftmemorialuniv 2023-09-03T06:44:57Z The breeding biology and behavior of the Common Murre (Uria aalge aalge (Pont.)) was studied on Gull Island, Newfoundland during May through July in 1977 and 1978. -- The origin of the Gull Island population was discussed as were the ledge population changes recorded over the breeding season. Reasons for the different patterns of attendance were suggested. -- Breeding phenology was studied in detail. Eggs were weighed and measured and a number of the attributes (shape, volume etc.) were determined. Eggs of known age were collected, their embryos removed and their developmental patterns determined. Numbers of eggs laid and the chronologies of laying for both seasons were compared. Weights of eggs from replacement clutches and the time required to replace a clutch were defined. -- Chicks were measured to calculate growth curves for weight and a number of other body parameters. Numbers of chicks were compared for both seasons as were the growth curves of chicks from both years. Fledging of chicks was recorded and observations were made on adult and chick behavior at fledging. Different fledging schedules for both years were noted and possible reasons for the differences were suggested. -- Breeding success, expressed as the numbers of pairs successfully fledging a chick, was recorded. Causes of egg and chick loss were recorded and the influence of predation was discussed in detail. -- Observations were made on behavior with particular attention being paid to those displays which involved characters of aggression. These displays were noted and their postures illustrated. The effects of high density nesting on the evolution of behaviour was discussed. -- Results indicated that murres on Gull Island attained breeding success rates comparable with other areas but lower than most. Birds breeding at higher densities and on longer-established of “safe” ledges were most successful. Murres in this colony demonstrate a wide range of conflict behaviours with numerous appeasement displays functioning to maintain low levels of ... Thesis Common Murre Newfoundland Uria aalge uria Memorial University of Newfoundland: Research Repository Gull Island ENVELOPE(-55.315,-55.315,49.533,49.533) |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Research Repository |
op_collection_id |
ftmemorialuniv |
language |
English |
description |
The breeding biology and behavior of the Common Murre (Uria aalge aalge (Pont.)) was studied on Gull Island, Newfoundland during May through July in 1977 and 1978. -- The origin of the Gull Island population was discussed as were the ledge population changes recorded over the breeding season. Reasons for the different patterns of attendance were suggested. -- Breeding phenology was studied in detail. Eggs were weighed and measured and a number of the attributes (shape, volume etc.) were determined. Eggs of known age were collected, their embryos removed and their developmental patterns determined. Numbers of eggs laid and the chronologies of laying for both seasons were compared. Weights of eggs from replacement clutches and the time required to replace a clutch were defined. -- Chicks were measured to calculate growth curves for weight and a number of other body parameters. Numbers of chicks were compared for both seasons as were the growth curves of chicks from both years. Fledging of chicks was recorded and observations were made on adult and chick behavior at fledging. Different fledging schedules for both years were noted and possible reasons for the differences were suggested. -- Breeding success, expressed as the numbers of pairs successfully fledging a chick, was recorded. Causes of egg and chick loss were recorded and the influence of predation was discussed in detail. -- Observations were made on behavior with particular attention being paid to those displays which involved characters of aggression. These displays were noted and their postures illustrated. The effects of high density nesting on the evolution of behaviour was discussed. -- Results indicated that murres on Gull Island attained breeding success rates comparable with other areas but lower than most. Birds breeding at higher densities and on longer-established of “safe” ledges were most successful. Murres in this colony demonstrate a wide range of conflict behaviours with numerous appeasement displays functioning to maintain low levels of ... |
format |
Thesis |
author |
Mahoney, Shane Patrick |
spellingShingle |
Mahoney, Shane Patrick Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
author_facet |
Mahoney, Shane Patrick |
author_sort |
Mahoney, Shane Patrick |
title |
Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
title_short |
Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
title_full |
Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
title_fullStr |
Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
title_full_unstemmed |
Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland |
title_sort |
breeding biology and behaviour of the common murre (uria aalge aalge (pont.)) on gull island, newfoundland |
publisher |
Memorial University of Newfoundland |
publishDate |
1979 |
url |
https://research.library.mun.ca/4214/ https://research.library.mun.ca/4214/1/Mahoney_ShanePatrick.pdf https://research.library.mun.ca/4214/3/Mahoney_ShanePatrick.pdf |
long_lat |
ENVELOPE(-55.315,-55.315,49.533,49.533) |
geographic |
Gull Island |
geographic_facet |
Gull Island |
genre |
Common Murre Newfoundland Uria aalge uria |
genre_facet |
Common Murre Newfoundland Uria aalge uria |
op_relation |
https://research.library.mun.ca/4214/1/Mahoney_ShanePatrick.pdf https://research.library.mun.ca/4214/3/Mahoney_ShanePatrick.pdf Mahoney, Shane Patrick <https://research.library.mun.ca/view/creator_az/Mahoney=3AShane_Patrick=3A=3A.html> (1979) Breeding biology and behaviour of the common murre (Uria aalge aalge (Pont.)) on Gull Island, Newfoundland. Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778523907810131968 |