{"doi":"10.1101/372722","title":"Compensatory and additive helper effects in the cooperatively breeding Seychelles warbler (\n                  <i>Acrocephalus sechellensis</i>\n                  )","abstract":"<jats:title>ABSTRACT</jats:title>\n                <jats:p>\n                  <jats:list list-type=\"bullet\">\n                    <jats:list-item>\n                      <jats:p>In cooperatively breeding species, helper aid may affect dominant breeders’ investment trade-offs between current and future reproduction. By compensating for the care provided by helpers, breeders can reduce the costs of reproduction and improve chances of survival. Also, helper care can be additive to that of dominants, resulting in higher success of the current brood.</jats:p>\n                    </jats:list-item>\n                    <jats:list-item>\n                      <jats:p>\n                        However, the influence of helpers on offspring care itself may be the by-product of group size and territory quality. Therefore to make conclusive inferences about causation of additive and compensatory care as a result of help\n                        <jats:italic>per se</jats:italic>\n                        requires disentangling the impact of helping from other factors determining parental investment.\n                      </jats:p>\n                    </jats:list-item>\n                    <jats:list-item>\n                      <jats:p>\n                        In this study, we use 20 years of offspring provisioning data to investigate the effect of helping on breeder and overall offspring provisioning rates in the facultative cooperatively breeding Seychelles warbler (\n                        <jats:italic>Acrocephalus sechellensis</jats:italic>\n                        ). Our extensive dataset allowed us to effectively control for the effects of living in a larger group and in territories with higher food availability.\n                      </jats:p>\n                    </jats:list-item>\n                    <jats:list-item>\n                      <jats:p>We show compensatory and additive care in response to helper aid. Helpers lightened the provisioning load of the dominant male and female and increased the total provisioning to the nestlings. This was irrespective of group size or territory quality (food availability).</jats:p>\n                    </jats:list-item>\n                    <jats:list-item>\n                      <jats:p>Our results illustrate how multiple benefits of helping behaviour can simultaneously be fundamental to the evolutionary maintenance of cooperative behaviour.</jats:p>\n                    </jats:list-item>\n                  </jats:list>\n                </jats:p>","journal":"bioRxiv (Cold Spring Harbor Laboratory)","year":null,"id":35207,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":180821,"name":"Martijn Hammers","orcid":"0000-0002-6638-820X","position":1,"is_corresponding":false},{"id":180822,"name":"Sjouke A. Kingma","orcid":"0000-0002-6737-7975","position":2,"is_corresponding":false},{"id":180736,"name":"David S Richardson","orcid":"0000-0001-7226-9074","position":3,"is_corresponding":false},{"id":125358,"name":"Terry Burke","orcid":"0000-0003-3848-1244","position":4,"is_corresponding":false},{"id":180639,"name":"Jan Komdeur","orcid":"0000-0002-9241-0124","position":5,"is_corresponding":false},{"id":180662,"name":"Hannah Dugdale","orcid":"0000-0001-8769-0099","position":6,"is_corresponding":false},{"id":180820,"name":"Lotte A. van Boheemen","orcid":"0000-0001-9199-7704","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":0.0,"endowment":0.0,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"30891231","pmcid":null,"openalex_id":"https://openalex.org/W2949823586","authors":[],"funders":[{"funder_name":"UK Research and Innovation","grant_id":"NE/F02083X/1","title":"Telomeres as biomarkers of cost and quality in a wild vertebrate population"},{"funder_name":"UK Research and Innovation","grant_id":"NE/K005502/1","title":"Transgenerational impacts on senescence: quantitative genetics of cellular and organismal ageing in the wild"},{"funder_name":"Netherlands Organisation for Scientific Research (NWO)","grant_id":"823.01.014","title":"Trans-generational impacts on senescence: quantitative genetics of cellular and organismal senescence in the wild"},{"funder_name":"Netherlands Organisation for Scientific Research (NWO)","grant_id":"854.11.003","title":"The uphill struggle to understand social behaviour: the importance of genes, ecology and evolution"},{"funder_name":"UK Research and Innovation","grant_id":"NE/I021748/1","title":"Quantitative genetics of behaviour: cooperative breeding and lifetime fitness"}],"total_grants":5,"fwci":null,"citation_percentile":null,"influential_citations":0,"citation_trend":[],"oa_status":"green","license":"cc-by-nc-nd","oa_locations":[{"url":"https://www.biorxiv.org/content/biorxiv/early/2018/07/19/372722.full.pdf","host_type":"repository"},{"url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/ece3.4982","host_type":"GOLD"},{"url":"https://www.biorxiv.org/content/biorxiv/early/2018/07/19/372722.full.pdf","host_type":"repository"},{"url":"https://syndication.highwire.org/content/doi/10.1101/372722","host_type":"publisher"},{"url":"https://doi.org/10.1101/372722","host_type":"repository"},{"url":"https://doi.org/10.1002/ece3.4982","host_type":""},{"url":"https://pubmed.ncbi.nlm.nih.gov/30891231","host_type":""},{"url":"http://dx.doi.org/10.1002/ece3.4982","host_type":""},{"url":"https://hdl.handle.net/11370/62c3abca-2bf2-4102-8462-191fb6909876","host_type":""},{"url":"https://research.rug.nl/en/publications/62c3abca-2bf2-4102-8462-191fb6909876","host_type":""},{"url":"https://dx.doi.org/10.1002/ece3.4982","host_type":""},{"url":"https://dx.doi.org/10.1101/372722","host_type":""},{"url":"https://ueaeprints.uea.ac.uk/id/eprint/70321/1/Published_Version.pdf","host_type":""},{"url":"https://research.wur.nl/en/publications/compensatory-and-additive-helper-effects-in-the-cooperatively-bre","host_type":""},{"url":"https://eprints.whiterose.ac.uk/id/eprint/145247/","host_type":""},{"url":"https://eprints.whiterose.ac.uk/id/eprint/140466/","host_type":""},{"url":"http://dx.doi.org/10.1101/372722","host_type":""},{"url":"https://doi.org/https://doi.org/10.1002/ece3.4982","host_type":""}],"fields_of_study":["Animal Behavior and Reproduction","Plant and animal studies","Wildlife Ecology and Conservation","Biology","Medicine","Environmental Science","0106 biological sciences","01 natural sciences"],"mesh_terms":[],"keywords":["Acrocephalus","Cooperative breeding","Provisioning","Facultative","Biology","Offspring","Brood","Reproduction","Paternal care","Helping behavior","Parental investment","Affect (linguistics)","Ecology","Quality (philosophy)","Demography","Evolutionary biology","Psychology","Communication","Population","Engineering","Pregnancy","Genetics","570","compensatory care","Seychelles warbler","FAIRY-WRENS","LONG-TERM","590","parental care","CARE","load-lightening","FEMALE BREEDERS","MATERNAL INVESTMENT","REPRODUCTIVE SUCCESS","BENEFITS","INVESTMENT STRATEGIES","load‐lightening","PARENTAGE ASSIGNMENT","AEGITHALOS-CAUDATUS","additive care","Original Research"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-10T02:14:54.581431Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}