Biodiversity and biogeography of zooxanthellate soft corals across the Indo-Pacific

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Май 2, 2025

Documentation of biodiversity and its geographical distribution is necessary to understand the processes drivers evolutionary diversification as well guide conservation management initiatives. Among most emblematic patterns in world's oceans Coral Triangle (Indo-Australian Archipelago), widely recognized be center species richness for a variety marine life forms. The remains incompletely documented, however, majority reef-associated invertebrate taxa, including zooxanthellate soft corals (Octocorallia) that dominate hard substrate on many Indo-Pacific reefs. We used genetic approach document diversity corals, sequencing two single-locus barcoding markers > 4400 coral specimens assigning individuals molecular operational taxonomic units proxies species. centers one Indo-Australian Archipelago second, equally diverse Western Indian Ocean. Centers endemicity are coincident with these richness, although peripheral Red Sea Hawaii also support high proportions endemic taxa. documented here suggest biogeographic distributions families may driven part by larval dispersal potential: taxa benthic larvae absent from oceanic islands central Pacific represented higher other geographic regions. Our findings demonstrate distinct among reef underscore need analyze more groups derive complete picture biogeography.

Язык: Английский

Algorithms going wild – A review of machine learning techniques for terrestrial ecology

Ecological Modelling, Год журнала: 2025, Номер 506, С. 111164 - 111164

Опубликована: Май 1, 2025

Язык: Английский

Macroecological patterns of planktonic unicellular eukaryotes richness in the Southeast Pacific Ocean

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Май 29, 2025

In recent years, studies focusing on microbial biogeography have been developed, but macroecological processes in marine microorganisms remain unclear, especially seemingly continuous environments such as the Southeast Pacific Ocean (SPO), where information distribution patterns is limited, and they may vary depending habitat lifestyle. We used unicellular planktonic eukaryotes model organisms to determine their biogeographic SPO, identify underlying ecological historical-evolutionary compare with other microorganism groups. Our analyses were based Niche Theory species diversity using large open-access physical-biogeochemical databases Bayesian approaches, an integrated nested Laplace approximation (INLA), Generalized Additive Models (GAM). As a result, two richness hotspots observed, which are associated coastal offshore regions central southern areas of SPO. The mainly nutrients (N/Si ratio) Mixed Layer Depth (MLD), could be explained by highly productive upwelling events contrast, negative correlation predicted low pH strongly related effect calcareous shells (tests), lower levels hinder formation stability calcium carbonate protists like foraminifera radiolaria, thereby affecting overall eukaryote diversity. results support role productivity, energy dynamics, limits shaping broad-scale show colonization extinction dynamics through replacement (i.e. High Turnover) along Chilean Equatorial coasts Hotspots biodiversity, also gradual loss Nestedness) Peruvian Coast Coldspots biodiversity; highlighting how local environmental fluctuations can shape these microorganisms' behavior, ecology distribution. little evidence effects historical evolutionary processes. This because high dispersal capacity microbes probably dilutes influence lacking clear barriers dispersal. Additionally, highlighted specific taxonomic groups at kingdom, phylum level or type addressing gaps about latitudinal provides insight into spatial contributes conservation efforts, essential foundation upper food web.

Язык: Английский