{"pk":53987,"title":"Seasonal variations of aquatic hyphomycete communities in a temperate, a Mediterranean and a tropical stream","subtitle":null,"abstract":"<p>Aquatic hyphomycete diversity and community composition varies with temperature in space and time. The distribution of species is influenced by temperature along latitudinal gradients, and species richness increases from tropical to temperate latitudes. This pattern is thought to result from an adaptation to cold water, as well as from the highest seasonal temperature fluctuation in temperate streams. Seasonal temperature variations actually influence the occurrence of species in temperate streams. However, much less is known about the seasonal variability of tropical aquatic hyphomycete communities, and no study to date compared this variability across latitudes. In this study, we sampled aquatic hyphomycete communities in 3 streams located under different climates (temperate, Mediterranean and tropical), every month during one year. According to our predictions, we found the highest seasonal variability of aquatic hyphomycete communities in the Mediterranean stream, where temperature fluctuations were also the strongest. However, and despite a high and relatively constant temperature, aquatic hyphomycete communities in the tropical stream exhibited significant seasonal variations as well as the highest species richness. This result contrasts with previous results and highlights the need for further comprehensive studies on aquatic hyphomycete biogeography.</p>","language":"eng","license":{"name":"Creative Commons Attribution 4.0","short_name":"CC BY 4.0","text":"Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\n\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.","url":"https://creativecommons.org/licenses/by/4.0"},"keywords":[{"word":"Aquatic fungi"},{"word":"streams"},{"word":"latitude"},{"word":"season"},{"word":"biodiversity"}],"section":"Articles","is_remote":true,"remote_url":"https://escholarship.org/uc/item/41z3r72r","frozenauthors":[{"first_name":"Jeremy","middle_name":"","last_name":"Jabiol","name_suffix":"","institution":"","department":""},{"first_name":"Marion","middle_name":"","last_name":"Labeille","name_suffix":"","institution":"","department":""},{"first_name":"Bertrand","middle_name":"","last_name":"Devillers","name_suffix":"","institution":"","department":""},{"first_name":"Nabil","middle_name":"","last_name":"Majdi","name_suffix":"","institution":"","department":""}],"date_submitted":"2025-11-21T13:25:04.030000+01:00","date_accepted":"2026-01-21T18:50:49.876000+01:00","date_published":"2026-01-30T12:00:00+01:00","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/biogeographia/article/53987/galley/48113/download/"}]}