{"id":{"repo_id":"radboud","oai_identifier":"oai:repository.ubn.ru.nl:2066/296594"},"canonical_url":"https://search.dev.ndltd.org/etd/radboud/oai:repository.ubn.ru.nl:2066/296594","repository":{"repo_id":"radboud","name":"Radboud University Nijmegen","base_url":"https://repository.ubn.ru.nl/oai/request"},"display":{"title":"Habitat segregation of Pond bats - consequences for reproduction, commuting, hibernation, predation and diet","abstract":"Contains fulltext : 296594.pdf (Publisher’s version ) (Open Access)","abstract_html":"Contains fulltext : 296594.pdf (Publisher’s version ) (Open Access)","abstract_has_math":false,"creators":["Haarsma, A.J.M."],"institution":"S.l. : s.n.","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Siepel, H.","Gravendeel, B.","Jongejans, E."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023","date_published":"2023","updated_at":"2026-07-24T04:01:06Z","subjects":["Animal Ecology and Physiology","Plant Ecology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2066/296594","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Siepel, H.","Gravendeel, B.","Jongejans, E."]},{"key":"dc:creator","label":"Author","values":["Haarsma, A.J.M."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023"]},{"key":"dc:publisher","label":"Institution","values":["S.l. : s.n."]},{"key":"dc:type","label":"Dc Type","values":["Doctoral thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Animal Ecology and Physiology","Plant Ecology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://repository.ubn.ru.nl//bitstream/handle/2066/296594/296594.pdf","https://hdl.handle.net/2066/296594"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Contains fulltext : 296594.pdf (Publisher’s version ) (Open Access)","Pond bats live in buildings. They make use of gaps under roof tiles and in cavity walls. They need habitats of varying temperatures. Just like most European bats, the pond bat is heterothermic: it can choose between self-regulating its body temperature or determining its temperature by its environment. Male and female pond bats live in separated areas for the entire year. The females live in maternity colonies and have their own areas for food and habitation. The males live in the vicinity of the females as well as along large rivers in areas only visited by the females in autumn. Pond bats thrive on this LAT (living-apart-together) relationship. As insect eaters, pond bats must survive a period of extreme food scarcity every year. They can survive the winter with minimal fat reserves by hibernating in safe locations with a stable temperature. Before and after hibernation, the bats must divide their energy between mating, giving birth to and raising their young, migrating and gaining weight for hibernation. The timing and expected energy expenditure of these events are different for males and females. The living spaces and food habitat preferences of both sexes therefore also differ. This PhD dissertation substantiates how the differences in energy needs between both sexes explain the LAT relationships of pond bats. Renovation and the demolishing of living environments mainly affect female pond bats. Depending on the varying availability of food, their young grow quicker or slower: for fast growth, a warm habitat is desired; for slow growth, a cool habitat. Well-insulated houses are too uniform regarding temperature, as a result of which reproduction problems arise. As a consequence, the pond bat population in the Netherlands has been in decline for years. Unfortunately, no sufficient replacement habitats for pond bats have yet been created. Insights from this PhD dissertation could accelerate the construction of alternative pond bat habitats. To save energy in the Netherlands, and to achieve our national climate targets as well as biodiversity goals, the accelerated construction of pond bat habitats is necessary.","Radboud University, 29 september 2023","Promotores : Siepel, H., Gravendeel, B. Co-promotor : Jongejans, E.","259 p."]},{"key":"dc:title","label":"Title","values":["Habitat segregation of Pond bats - consequences for reproduction, commuting, hibernation, predation and diet"]}]}],"canonical_facts":{"dc:contributor":["Siepel, H.","Gravendeel, B.","Jongejans, E."],"dc:creator":["Haarsma, A.J.M."],"dc:date":["2023"],"dc:description":["Contains fulltext : 296594.pdf (Publisher’s version ) (Open Access)","Pond bats live in buildings. They make use of gaps under roof tiles and in cavity walls. They need habitats of varying temperatures. Just like most European bats, the pond bat is heterothermic: it can choose between self-regulating its body temperature or determining its temperature by its environment. Male and female pond bats live in separated areas for the entire year. The females live in maternity colonies and have their own areas for food and habitation. The males live in the vicinity of the females as well as along large rivers in areas only visited by the females in autumn. Pond bats thrive on this LAT (living-apart-together) relationship. As insect eaters, pond bats must survive a period of extreme food scarcity every year. They can survive the winter with minimal fat reserves by hibernating in safe locations with a stable temperature. Before and after hibernation, the bats must divide their energy between mating, giving birth to and raising their young, migrating and gaining weight for hibernation. The timing and expected energy expenditure of these events are different for males and females. The living spaces and food habitat preferences of both sexes therefore also differ. This PhD dissertation substantiates how the differences in energy needs between both sexes explain the LAT relationships of pond bats. Renovation and the demolishing of living environments mainly affect female pond bats. Depending on the varying availability of food, their young grow quicker or slower: for fast growth, a warm habitat is desired; for slow growth, a cool habitat. Well-insulated houses are too uniform regarding temperature, as a result of which reproduction problems arise. As a consequence, the pond bat population in the Netherlands has been in decline for years. Unfortunately, no sufficient replacement habitats for pond bats have yet been created. Insights from this PhD dissertation could accelerate the construction of alternative pond bat habitats. To save energy in the Netherlands, and to achieve our national climate targets as well as biodiversity goals, the accelerated construction of pond bat habitats is necessary.","Radboud University, 29 september 2023","Promotores : Siepel, H., Gravendeel, B. Co-promotor : Jongejans, E.","259 p."],"dc:identifier":["https://repository.ubn.ru.nl//bitstream/handle/2066/296594/296594.pdf","https://hdl.handle.net/2066/296594"],"dc:publisher":["S.l. : s.n."],"dc:subject":["Animal Ecology and Physiology","Plant Ecology"],"dc:title":["Habitat segregation of Pond bats - consequences for reproduction, commuting, hibernation, predation and diet"],"dc:type":["Doctoral thesis"]},"updated_at":"2026-07-24T04:01:06Z"}