{"corpus_id":84165010,"paper_sha":"ab20548c541f4e95429c3223439d09eea63e5937","doi":"10.1636/S03-46.1","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":1995286039,"dblp_id":null,"acl_id":null,"title":"REGURGITATION AMONG PENULTIMATE JUVENILES IN THE SUBSOCIAL SPIDER ANELOSIMUS CF. STUDIOSUS (THERIDIIDAE): ARE MALES FAVORED?","year":2006,"publication_date":"2006-08-01","venue":"","journal":{"name":null,"pages":"258 - 260","volume":"34"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Biology"],"reference_count":12,"citation_count":21,"influential_citation_count":1,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"https://www.biodiversitylibrary.org/partpdf/228934","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/ab20548c541f4e95429c3223439d09eea63e5937","s2_open_access_license":"CCBYNCSA","s2_open_access_status":"GREEN","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Abstract Regurgitation from adult females towards juveniles is a well known phenomenon in social spiders. However, occasional observations in Anelosimus cf. studiosus from Uruguay showed the occurrence of food transfer also between large juveniles. We experimentally tested if well fed penultimate females were capable of regurgitating fluids to starved males, and if well fed penultimate males were capable of regurgitating fluids to starved females. Other isolated and starved penultimate males and females were used as controls. Starved males and females of the experimental groups significantly increased their body weight, whereas body weight decreased in controls. Males increased their weight more than females. We conclude that both well fed penultimate males and females can feed other starved subadults, but when given access to members of the opposite sex, males benefit than females. This bias in the regurgitation exchange among subadults could contribute to accelerate the maturation of males.","claims":[{"public_id":"cl_00ecce581252d81f1288a3db7d6de7a2","status":"active","text":"Both well fed penultimate males and well fed penultimate females are capable of regurgitating fluids to feed other starved subadults, but males benefit more than females when given access to a member of the opposite sex.","confidence":0.85,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_00ecce581252d81f1288a3db7d6de7a2"},{"public_id":"cl_56030901b7a91f3e10f405db42e3a006","status":"active","text":"Males increased their body weight more than females did after receiving regurgitated fluids.","confidence":0.85,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_56030901b7a91f3e10f405db42e3a006"},{"public_id":"cl_c0cab6463c0527488cd4e089825e7b24","status":"active","text":"Starved males and females in the experimental groups significantly increased their body weight, whereas body weight decreased in the isolated control groups.","confidence":0.92,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_c0cab6463c0527488cd4e089825e7b24"},{"public_id":"cl_866912f7c4f2a735493b68b2fa774117","status":"active","text":"This male-biased benefit in the regurgitation exchange among subadults could contribute to accelerating the maturation of males.","confidence":0.7,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_866912f7c4f2a735493b68b2fa774117"},{"public_id":"cl_2c1f3287dd865e30a5cb172294c37670","status":"active","text":"Well fed penultimate females were experimentally tested for their capacity to regurgitate fluids to starved males, and well fed penultimate males were tested for regurgitating fluids to starved females, with isolated starved penultimate males and females used as controls.","confidence":0.9,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale 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