Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival
1. I examined how the Hippoboscidae Ornithomya chloropus is spatially and temporally distributed in an insular metapopulation of house sparrows in northern Norway from 2004-2011, whether there were demographic differences in abundance as well the relationship between abundance and morphology, and ab...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/245333 2023-05-15T17:43:29+02:00 Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival Vastveit, Helene Russell Ringsby, Thor Harald Holand, Håkon Jensen, Henrik Pärn, Henrik Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for biologi 2013 http://hdl.handle.net/11250/245333 eng eng Institutt for biologi 660429 ntnudaim:8550 http://hdl.handle.net/11250/245333 50 Master thesis 2013 ftntnutrondheimi 2019-09-17T06:49:10Z 1. I examined how the Hippoboscidae Ornithomya chloropus is spatially and temporally distributed in an insular metapopulation of house sparrows in northern Norway from 2004-2011, whether there were demographic differences in abundance as well the relationship between abundance and morphology, and abundance and survival in juvenile house sparrows.2. I found a handling effect on the abundance of O. chloropus which reduced the number of flies found on individuals from their first to their second catch.3. There was considerable variation in abundance between years and islands as well as within seasons, and abundance of O. chloropus differed between age-classes.4. There was a negative relationship between abundance and the three morphological traits; body condition index, body mass and tarsus length. There was also a positive effect of age on these morphological traits and a negative effect of late hatch days.5. There was a positive relationship between juvenile survival and body condition index, and survival and tarsus length.6. These results indicate a relationship between the abundance of O. chloropus and the fitness of juvenile house sparrows with morphology while there was no clear relationship between juvenile survival and abundance. Master Thesis Northern Norway NTNU Open Archive (Norwegian University of Science and Technology) Norway |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
1. I examined how the Hippoboscidae Ornithomya chloropus is spatially and temporally distributed in an insular metapopulation of house sparrows in northern Norway from 2004-2011, whether there were demographic differences in abundance as well the relationship between abundance and morphology, and abundance and survival in juvenile house sparrows.2. I found a handling effect on the abundance of O. chloropus which reduced the number of flies found on individuals from their first to their second catch.3. There was considerable variation in abundance between years and islands as well as within seasons, and abundance of O. chloropus differed between age-classes.4. There was a negative relationship between abundance and the three morphological traits; body condition index, body mass and tarsus length. There was also a positive effect of age on these morphological traits and a negative effect of late hatch days.5. There was a positive relationship between juvenile survival and body condition index, and survival and tarsus length.6. These results indicate a relationship between the abundance of O. chloropus and the fitness of juvenile house sparrows with morphology while there was no clear relationship between juvenile survival and abundance. |
author2 |
Ringsby, Thor Harald Holand, Håkon Jensen, Henrik Pärn, Henrik Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for biologi |
format |
Master Thesis |
author |
Vastveit, Helene Russell |
spellingShingle |
Vastveit, Helene Russell Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
author_facet |
Vastveit, Helene Russell |
author_sort |
Vastveit, Helene Russell |
title |
Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
title_short |
Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
title_full |
Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
title_fullStr |
Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
title_full_unstemmed |
Spatial and temporal variation in hippoboscid parasitism by Ornithomya chloropus on house sparrows (Passer domesticus) and its effect on survival |
title_sort |
spatial and temporal variation in hippoboscid parasitism by ornithomya chloropus on house sparrows (passer domesticus) and its effect on survival |
publisher |
Institutt for biologi |
publishDate |
2013 |
url |
http://hdl.handle.net/11250/245333 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
50 |
op_relation |
660429 ntnudaim:8550 http://hdl.handle.net/11250/245333 |
_version_ |
1766145563499167744 |