Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine
From 1990-1997, we observed food deliveries to Common (Sterna hirundo) and Arctic (S. paradisaea) tern chicks in the Gulf of Maine; deliveries were observed at four Common Tern colonies from 1991-1997 and at three Arctic Tern colonies from 1990-1997. Dietary overlap was high, 0.812. Fish comprised o...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
ScholarWorks@UMass Amherst
2000
|
Subjects: | |
Online Access: | https://scholarworks.umass.edu/nrc_faculty_pubs/142 |
id |
ftunivmassamh:oai:scholarworks.umass.edu:nrc_faculty_pubs-1141 |
---|---|
record_format |
openpolar |
spelling |
ftunivmassamh:oai:scholarworks.umass.edu:nrc_faculty_pubs-1141 2023-05-15T14:38:15+02:00 Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine Hall, CS Kress, SW Griffin, CR 2000-01-01T08:00:00Z https://scholarworks.umass.edu/nrc_faculty_pubs/142 unknown ScholarWorks@UMass Amherst https://scholarworks.umass.edu/nrc_faculty_pubs/142 Environmental Conservation Faculty Publication Series Arctic Tern Common Tern chick diet Maine Sterna hirundo Sterna paradisaea text 2000 ftunivmassamh 2022-09-08T17:45:30Z From 1990-1997, we observed food deliveries to Common (Sterna hirundo) and Arctic (S. paradisaea) tern chicks in the Gulf of Maine; deliveries were observed at four Common Tern colonies from 1991-1997 and at three Arctic Tern colonies from 1990-1997. Dietary overlap was high, 0.812. Fish comprised over 96% of the prey delivered (frequency) to Common Tern chicks. In contrast, Arctic Tern chicks were fed a diet consisting of 65% fish and 35% invertebrates. Although the two terns fed different proportions of fish, both species relied heavily on white hake (Urophycis tenuis), Four-bearded rockling (Enchelyopus cimbrius) and Atlantic herring (Clupea harengus). Amer- ican sand lance (Ammodytes americanus) was an important prey for Common Terns at one island. Overall, Common Terns fed their young a greater diversity of prey than did Arctic Terns. We found significant inter-annual and inter- colony differences in the diversity and proportions of prey types. "Boom and bust" years were evident for particular prey. We suspect dietary differences in Maine were due to colony location; however, a detailed study of the relation- ship between prey availability and abundance and the foraging ecology of terns in Maine is needed to elucidate these relationships. We believe long-term diet data sets gathered from multiple sites are the best way to characterize waterbird diets. Text Arctic Arctic tern Common tern Sterna hirundo Sterna paradisaea University of Massachusetts: ScholarWorks@UMass Amherst Arctic Hake ENVELOPE(15.612,15.612,66.797,66.797) |
institution |
Open Polar |
collection |
University of Massachusetts: ScholarWorks@UMass Amherst |
op_collection_id |
ftunivmassamh |
language |
unknown |
topic |
Arctic Tern Common Tern chick diet Maine Sterna hirundo Sterna paradisaea |
spellingShingle |
Arctic Tern Common Tern chick diet Maine Sterna hirundo Sterna paradisaea Hall, CS Kress, SW Griffin, CR Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
topic_facet |
Arctic Tern Common Tern chick diet Maine Sterna hirundo Sterna paradisaea |
description |
From 1990-1997, we observed food deliveries to Common (Sterna hirundo) and Arctic (S. paradisaea) tern chicks in the Gulf of Maine; deliveries were observed at four Common Tern colonies from 1991-1997 and at three Arctic Tern colonies from 1990-1997. Dietary overlap was high, 0.812. Fish comprised over 96% of the prey delivered (frequency) to Common Tern chicks. In contrast, Arctic Tern chicks were fed a diet consisting of 65% fish and 35% invertebrates. Although the two terns fed different proportions of fish, both species relied heavily on white hake (Urophycis tenuis), Four-bearded rockling (Enchelyopus cimbrius) and Atlantic herring (Clupea harengus). Amer- ican sand lance (Ammodytes americanus) was an important prey for Common Terns at one island. Overall, Common Terns fed their young a greater diversity of prey than did Arctic Terns. We found significant inter-annual and inter- colony differences in the diversity and proportions of prey types. "Boom and bust" years were evident for particular prey. We suspect dietary differences in Maine were due to colony location; however, a detailed study of the relation- ship between prey availability and abundance and the foraging ecology of terns in Maine is needed to elucidate these relationships. We believe long-term diet data sets gathered from multiple sites are the best way to characterize waterbird diets. |
format |
Text |
author |
Hall, CS Kress, SW Griffin, CR |
author_facet |
Hall, CS Kress, SW Griffin, CR |
author_sort |
Hall, CS |
title |
Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
title_short |
Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
title_full |
Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
title_fullStr |
Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
title_full_unstemmed |
Composition, spatial and temporal variation of Common and Arctic Tern chick diets in the Gulf of Maine |
title_sort |
composition, spatial and temporal variation of common and arctic tern chick diets in the gulf of maine |
publisher |
ScholarWorks@UMass Amherst |
publishDate |
2000 |
url |
https://scholarworks.umass.edu/nrc_faculty_pubs/142 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Arctic Hake |
geographic_facet |
Arctic Hake |
genre |
Arctic Arctic tern Common tern Sterna hirundo Sterna paradisaea |
genre_facet |
Arctic Arctic tern Common tern Sterna hirundo Sterna paradisaea |
op_source |
Environmental Conservation Faculty Publication Series |
op_relation |
https://scholarworks.umass.edu/nrc_faculty_pubs/142 |
_version_ |
1766310358864101376 |