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Replacement clutch of greater Spotted Eagle Clanga clanga after clutch loss: the first documented case in Poland

cris.virtual.author-orcid0000-0003-2094-1388
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid0000-0002-8358-0797
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid9431589f-9457-450a-b23b-42cbfa30ad20
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cris.virtualsource.author-orcid362c6679-6484-44a9-a5b6-eaf80f4cee38
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enRe-nesting within the same breeding season after clutch loss is very rarely observed in large raptors, including the endangered greater Spotted Eagle (Clanga clanga). Here, we describe the first well-documented and confirmed case of clutch replacement in this species, observed in 2024 in the Biebrza Basin (NE Poland). Using modern telemetry, camera trapping technologies, and individual marking, we tracked an adult female that abandoned her first clutch due to disturbance caused by a swarm of insects. After an energy-replenishing period of abundant foraging, the female re-nested with the same male had previously bred with and successfully raised a chick in a different nest. This unprecedented event in this species underscores how the combination of early clutch replacement, sufficient food resources, and nest availability can enable re-nesting, and how such conditions may be relevant for the conservation of this threatened species.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Łowiectwa i Ochrony Lasu
dc.affiliation.instituteKatedra Zoologii
dc.contributor.authorMaciorowski, Grzegorz
dc.contributor.authorMaciorowski, Jan
dc.contributor.authorTryjanowski, Piotr
dc.contributor.authorGolawski, Artur
dc.contributor.authorPolakowski, Michał
dc.date.accessioned2026-02-19T14:26:31Z
dc.date.available2026-02-19T14:26:31Z
dc.date.issued2026
dc.description.bibliographybibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.identifier.doi10.1007/s10336-026-02360-1
dc.identifier.eissn2193-7206
dc.identifier.issn2193-7192
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/7397
dc.languageen
dc.relation.ispartofJournal of Ornithology
dc.relation.project101113849—LIFE22-NAT-PL-GSELIFEAboveBorders—LIFE-2022-SAP-NAT: Above the borders: conservation of Greater Spotted Eagles at breeding and wintering areas, and on its flyway, funded by the European Commission LIFE + and LIFE
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enbreeding success
dc.subject.enclutch replacement
dc.subject.eninsects
dc.subject.enmodern technology
dc.subject.entop predator
dc.subtypeArticleEarlyAccess
dc.titleReplacement clutch of greater Spotted Eagle Clanga clanga after clutch loss: the first documented case in Poland
dc.typeJournalArticle
dspace.entity.typePublication