{"id":{"repo_id":"northampton","oai_identifier":"oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f"},"canonical_url":"https://search.dev.ndltd.org/etd/northampton/oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f","repository":{"repo_id":"northampton","name":"University of Northampton","base_url":"https://pure.northampton.ac.uk/ws/oai"},"display":{"title":"The influence of linear landscape features on pollinator behaviour","abstract":"Linear landscape features such as hedgerows are important wildlife habitats but their functional role in improving connectivity in fragmented habitats remains uncertain. This thesis studied the influence of both natural and artificial linear features on pollinator behaviour at medium and landscape scales. Observations along 30m transects, perpendicular to eight different hedgerows revealed that non-foraging pollinators were far more likely to exhibit linear flight next to the hedgerow than they were further out in the field. Using a medium-scale experimental design, three patches of potted Phacelia tanacetifolia (Hydrophyllaceae) were arranged equidistantly with two of the patches being connected by an artificial linear feature. Results demonstrated that there was significantly greater inter-patch movement by bumblebees (Bombus spp.) between the connected patches than the isolated patch even after the position of the feature was changed. The isolated patch, in contrast, was not approached from the other two patches. Bumblebees demonstrated high patch fidelity but their abundance in the connected patches was not necessarily greater than the isolated patch. There were no significant differences in hoverfly (Syrphidae) abundance between patches. Later, the same experimental array was scaled up to fit within the farm landscape structure, using an existing hedgerow as the connection. A similar pattern of flight directions emerged. In a landscape investigation, the reproductive success of Salvia pratensis (Labiatae) growing in patches with a high number of connecting hedgerows was compared with those plants growing within poorly connected patches. Pollinator abundance, pollen grains per stigma and seed yield, were greater in highly connected patches compared with patches with fewer connecting hedgerows. The overall connectedness of a landscape may therefore be important to both pollinator movement and those plants which depend on them for greater reproductive success. Linear landscape features might represent navigational aids with which pollinators orient themselves.","abstract_html":"Linear landscape features such as hedgerows are important wildlife habitats but their functional role in improving connectivity in fragmented habitats remains uncertain. This thesis studied the influence of both natural and artificial linear features on pollinator behaviour at medium and landscape scales. Observations along 30m transects, perpendicular to eight different hedgerows revealed that non-foraging pollinators were far more likely to exhibit linear flight next to the hedgerow than they were further out in the field. Using a medium-scale experimental design, three patches of potted Phacelia tanacetifolia (Hydrophyllaceae) were arranged equidistantly with two of the patches being connected by an artificial linear feature. Results demonstrated that there was significantly greater inter-patch movement by bumblebees (Bombus spp.) between the connected patches than the isolated patch even after the position of the feature was changed. The isolated patch, in contrast, was not approached from the other two patches. Bumblebees demonstrated high patch fidelity but their abundance in the connected patches was not necessarily greater than the isolated patch. There were no significant differences in hoverfly (Syrphidae) abundance between patches. Later, the same experimental array was scaled up to fit within the farm landscape structure, using an existing hedgerow as the connection. A similar pattern of flight directions emerged. In a landscape investigation, the reproductive success of Salvia pratensis (Labiatae) growing in patches with a high number of connecting hedgerows was compared with those plants growing within poorly connected patches. Pollinator abundance, pollen grains per stigma and seed yield, were greater in highly connected patches compared with patches with fewer connecting hedgerows. The overall connectedness of a landscape may therefore be important to both pollinator movement and those plants which depend on them for greater reproductive success. Linear landscape features might represent navigational aids with which pollinators orient themselves.","abstract_has_math":false,"creators":["Cranmer, Louise"],"institution":"University of Northampton","degree_name":"Doctoral Thesis","degree_level":"Student thesis","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["McCollin, Duncan","Ollerton, Jeff"],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004","date_published":"2004","updated_at":"2026-07-24T03:26:46Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f"],"render_values":[{"text":"oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f","href":null,"code":true}]}]},"links":{"outbound_url":"https://pure.northampton.ac.uk/en/studentTheses/196173bd-41a0-4ece-b017-ac65a19ee75f","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["McCollin, Duncan","Ollerton, Jeff"]},{"key":"dc:creator","label":"Author","values":["Cranmer, Louise"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2004"]},{"key":"dc:date.issued","label":"Date","values":["2004"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Faculty of Arts, Science & Technology"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Northampton","University of Leicester"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://pure.northampton.ac.uk/en/studentTheses/196173bd-41a0-4ece-b017-ac65a19ee75f"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Student thesis"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["Doctoral Thesis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f","https://pure.northampton.ac.uk/en/studentTheses/196173bd-41a0-4ece-b017-ac65a19ee75f"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Linear landscape features such as hedgerows are important wildlife habitats but their functional role in improving connectivity in fragmented habitats remains uncertain. This thesis studied the influence of both natural and artificial linear features on pollinator behaviour at medium and landscape scales. Observations along 30m transects, perpendicular to eight different hedgerows revealed that non-foraging pollinators were far more likely to exhibit linear flight next to the hedgerow than they were further out in the field. Using a medium-scale experimental design, three patches of potted Phacelia tanacetifolia (Hydrophyllaceae) were arranged equidistantly with two of the patches being connected by an artificial linear feature. Results demonstrated that there was significantly greater inter-patch movement by bumblebees (Bombus spp.) between the connected patches than the isolated patch even after the position of the feature was changed. The isolated patch, in contrast, was not approached from the other two patches. Bumblebees demonstrated high patch fidelity but their abundance in the connected patches was not necessarily greater than the isolated patch. There were no significant differences in hoverfly (Syrphidae) abundance between patches. Later, the same experimental array was scaled up to fit within the farm landscape structure, using an existing hedgerow as the connection. A similar pattern of flight directions emerged. In a landscape investigation, the reproductive success of Salvia pratensis (Labiatae) growing in patches with a high number of connecting hedgerows was compared with those plants growing within poorly connected patches. Pollinator abundance, pollen grains per stigma and seed yield, were greater in highly connected patches compared with patches with fewer connecting hedgerows. The overall connectedness of a landscape may therefore be important to both pollinator movement and those plants which depend on them for greater reproductive success. Linear landscape features might represent navigational aids with which pollinators orient themselves."]},{"key":"dc:title","label":"Title","values":["The influence of linear landscape features on pollinator behaviour"]}]}],"canonical_facts":{"dc:contributor.advisor":["McCollin, Duncan","Ollerton, Jeff"],"dc:creator":["Cranmer, Louise"],"dc:date":["2004"],"dc:date.issued":["2004"],"dc:description.abstract":["Linear landscape features such as hedgerows are important wildlife habitats but their functional role in improving connectivity in fragmented habitats remains uncertain. This thesis studied the influence of both natural and artificial linear features on pollinator behaviour at medium and landscape scales. Observations along 30m transects, perpendicular to eight different hedgerows revealed that non-foraging pollinators were far more likely to exhibit linear flight next to the hedgerow than they were further out in the field. Using a medium-scale experimental design, three patches of potted Phacelia tanacetifolia (Hydrophyllaceae) were arranged equidistantly with two of the patches being connected by an artificial linear feature. Results demonstrated that there was significantly greater inter-patch movement by bumblebees (Bombus spp.) between the connected patches than the isolated patch even after the position of the feature was changed. The isolated patch, in contrast, was not approached from the other two patches. Bumblebees demonstrated high patch fidelity but their abundance in the connected patches was not necessarily greater than the isolated patch. There were no significant differences in hoverfly (Syrphidae) abundance between patches. Later, the same experimental array was scaled up to fit within the farm landscape structure, using an existing hedgerow as the connection. A similar pattern of flight directions emerged. In a landscape investigation, the reproductive success of Salvia pratensis (Labiatae) growing in patches with a high number of connecting hedgerows was compared with those plants growing within poorly connected patches. Pollinator abundance, pollen grains per stigma and seed yield, were greater in highly connected patches compared with patches with fewer connecting hedgerows. The overall connectedness of a landscape may therefore be important to both pollinator movement and those plants which depend on them for greater reproductive success. Linear landscape features might represent navigational aids with which pollinators orient themselves."],"dc:identifier":["oai:pure.atira.dk:studenttheses/196173bd-41a0-4ece-b017-ac65a19ee75f","https://pure.northampton.ac.uk/en/studentTheses/196173bd-41a0-4ece-b017-ac65a19ee75f"],"dc:language":["eng"],"dc:publisher.department":["Faculty of Arts, Science & Technology"],"dc:publisher.institution":["University of Northampton","University of Leicester"],"dc:relation.isreferencedby":["https://pure.northampton.ac.uk/en/studentTheses/196173bd-41a0-4ece-b017-ac65a19ee75f"],"dc:title":["The influence of linear landscape features on pollinator behaviour"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["Student thesis"],"dc:type.qualificationname":["Doctoral Thesis"]},"updated_at":"2026-07-24T03:26:46Z"}