{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T07:17:59Z","timestamp":1784099879262,"version":"3.55.0"},"reference-count":113,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T00:00:00Z","timestamp":1773100800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"name":"University Greifswald"},{"DOI":"10.13039\/100008114","name":"University of Nebraska-Lincoln","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100008114","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,5,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Sexual size dimorphism (SSD) and mating system diversity are key factors shaping reproductive evolution, yet their relationships with post-mating sexual selection remain incompletely understood. Here, we use a comparative framework across multiple species of Dolomedes fishing spiders to examine how mating systems, sperm production strategies, and proxies of postcopulatory selection relate to SSD. We quantified testes size and spermatogenesis in three closely related species\u2014D. tenebrosus, D. okefinokensis, and D. scriptus\u2014that differ in mating system and SSD. Dolomedes tenebrosus, a monogynous species with extreme female-biased SSD (eSSD) and male self-sacrifice, showed evidence of termination of spermatogenesis at maturity, indicating a terminal investment strategy. Dolomedes okefinokensis exhibited a similar pattern, suggesting convergent evolution toward monogyny. In contrast, D. scriptus, with moderate SSD and a polygynous system, maintained continuous spermatogenesis, consistent with repeated mating opportunities. Expanding to 13 Dolomedes species, we found a strong positive association between eSSD, monogyny, and spermatogenesis termination, alongside increased spermophor volume in eSSD species. These findings suggest that eSSD is associated with both a terminal male reproductive strategy and intensified investment in sperm transfer structures. Together, our results highlight an integrated evolutionary link between SSD, mating system, and male reproductive investment across\u00a0Dolomedes spiders.<\/jats:p>","DOI":"10.1093\/evolut\/qpag041","type":"journal-article","created":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T12:40:45Z","timestamp":1773146445000},"page":"1072-1084","source":"Crossref","is-referenced-by-count":2,"title":["Extreme sexual size dimorphism correlates with proxies of postcopulatory sexual selection across selected\n                    <i>Dolomedes<\/i>\n                    fishing spiders"],"prefix":"10.1093","volume":"80","author":[{"given":"Mattes","family":"Linde","sequence":"first","affiliation":[{"name":"Zoological Institute and Museum, University of Greifswald , Loitzer Str. 26, D-17489 Greifswald ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisabeth","family":"Donke","sequence":"additional","affiliation":[{"name":"Zoological Institute and Museum, University of Greifswald , Loitzer Str. 26, D-17489 Greifswald ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven K","family":"Schwartz","sequence":"additional","affiliation":[{"name":"School of Biological Sciences, University of Nebraska-Lincoln , Lincoln, NE ,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9382-2040","authenticated-orcid":false,"given":"Eileen A","family":"Hebets","sequence":"additional","affiliation":[{"name":"School of Biological Sciences, University of Nebraska-Lincoln , Lincoln, NE ,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2459-9153","authenticated-orcid":false,"given":"Peter","family":"Michalik","sequence":"additional","affiliation":[{"name":"Zoological Institute and Museum, University of Greifswald , Loitzer Str. 26, D-17489 Greifswald ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,3,10]]},"reference":[{"key":"2026051303564922500_bib1","doi-asserted-by":"publisher","first-page":"372","DOI":"10.1111\/j.1463-6395.2010.00470.x","article-title":"Testes degeneration in ants: a histological study of Gnamptogenys bicolor","volume":"92","author":"Allard","year":"2011","journal-title":"Acta Zoologica"},{"key":"2026051303564922500_bib2","doi-asserted-by":"publisher","DOI":"10.1515\/9780691207278","volume-title":"Sexual selection","author":"Andersson","year":"1994"},{"key":"2026051303564922500_bib3","doi-asserted-by":"publisher","first-page":"53","DOI":"10.1016\/0169-5347(96)81042-1","article-title":"Sexual selection","volume":"11","author":"Andersson","year":"1996","journal-title":"Trends in Ecology and Evolution"},{"key":"2026051303564922500_bib4","doi-asserted-by":"publisher","first-page":"838","DOI":"10.1093\/icb\/45.5.838","article-title":"Terminal investment strategies and male mate choice: extreme tests of Bateman","volume":"45","author":"Andrade","year":"2005","journal-title":"Integrative and Comparative Biology"},{"key":"2026051303564922500_bib5","doi-asserted-by":"publisher","DOI":"10.1093\/acprof:oso\/9780199678020.001.0001","article-title":"Cryptic female choice","volume-title":"The evolution of insect mating systems","author":"Arnqvist","year":"2014"},{"key":"2026051303564922500_bib6","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1098\/rspb.1995.0126","article-title":"Sexual conflict and arms races between the sexes: a morphological adaptation for control of mating in a female insect","volume":"261","author":"Arnqvist","year":"1995","journal-title":"Proceedings of Royal Society of London B"},{"key":"2026051303564922500_bib7","doi-asserted-by":"publisher","first-page":"614","DOI":"10.1111\/1365-2435.12533","article-title":"Sperm production characteristics vary with level of sperm competition in Cataglyphis desert ants","volume":"30","author":"Aron","year":"2016","journal-title":"Functional Ecology"},{"key":"2026051303564922500_bib8","doi-asserted-by":"publisher","first-page":"154","DOI":"10.1636\/0161-8202-47.1.154","article-title":"Notes on the feeding habits of the Okinawan fishing spider, Dolomedes orion (Araneae: Pisauridae), in the southwestern islands of Japan","volume":"47","author":"Baba","year":"2019","journal-title":"Journal of Arachnology"},{"key":"2026051303564922500_bib9","doi-asserted-by":"publisher","first-page":"237","DOI":"10.13156\/arac.2019.18.3.237","article-title":"The heritability of lateral banding in Dolomedes plantarius","volume":"18","author":"Baillie","year":"2019","journal-title":"Arachnology"},{"key":"2026051303564922500_bib10","doi-asserted-by":"publisher","first-page":"86","DOI":"10.1186\/s12862-024-02272-9","article-title":"Does female control and male mating system predict courtship investment and mating outcomes? 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