Tropical South America Diatom Database: a tool for studying the macroecology of microorganisms

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dc.contributor.author Benito, Xavier
dc.contributor.author Feitl, Melina
dc.contributor.author Carrevedo, Maria L.
dc.contributor.author Vélez, Maria I.
dc.contributor.author Escobar, Jaime
dc.contributor.author Tapia, Pedro M.
dc.contributor.author Steinitz-Kannan, Miriam
dc.contributor.author Fritz, Sherilyn C.
dc.date.accessioned 2022-08-02T14:41:04Z
dc.date.available 2022-08-02T14:41:04Z
dc.date.issued 2022-06-28
dc.description.abstract Determining the mechanisms of community assembly forms the foundation of biogeography and community ecology. Studies of the biodiversity and distribution of Neotropical macro-organisms have revealed the roles of environmental, spatial, and historical factors in structuring communities at different spatial and temporal scales. The role of these factors for species and communities of microorganisms are still poorly understood. Diatoms are a very species-rich group of algae, widely distributed, and sensitive to environmental variation because of their position at the base of aquatic food webs. Here, we present the Tropical South American Diatom Database (TSADB), which contains geographical and ecological information on diatom species across lentic and lotic environments, including predictors that describe local (limnological) and regional (geo-climatic) factors. The open access database can be used to ask fundamental questions in macroecology, including testing foundational theories of metacommunity ecology and biogeography, and evaluating the sensitivity of species and communities to the rapid environmental changes characteristic of tropical regions. The TSADB includes diatom taxa from 437 samples from 326 sites distributed across 26 regions (0–5,070 m a.s.l, and between 8°N–35°S; 58–90°W). In addition, long-term, diatom-based paleolimnological records are presented as a complementary tool for identifying geographically well-covered regions with modern and palaeo-datasets. We describe the TSADB structure and functionality, together with the R codes for data manipulation and visualization. Each of the 26 study regions is represented by three data matrices: sampling site information, environmental variables (limnology, climate, and landscape), and diatom community data (relative abundance or presence/absence). Access to data and future additions is through publicly available repositories and a guide to contributors, respectively. Thus, it offers ample opportunities to complement existing databases on diatoms, allowing optimal usage of TSADB by scientists including diatomists, limnologists, and aquatic ecologists.
dc.identifier.citation Xavier Benito, Melina Feitl, Maria L. Carrevedo, Maria I. Vélez, Jaime Escobar, Pedro M. Tapia, Miriam Steinitz-Kannan & Sherilyn C. Fritz (2022) Tropical South America Diatom Database: a tool for studying the macroecology of microorganisms, Diatom Research, DOI: 10.1080/0269249X.2022.2078429
dc.identifier.uri https://doi.org/10.1080/0269249X.2022.2078429
dc.identifier.uri https://repositorio.inaigem.gob.pe/handle/16072021/414
dc.language.iso es
dc.publisher Taylor & Francis
dc.title Tropical South America Diatom Database: a tool for studying the macroecology of microorganisms
dc.type Article
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