Plants metacommunity from temporary ponds

# Metacommunity of plants from temporary ponds The metacommunity of located in a flat landscape surrounded by hills, where a maximum of 61 ponds, every year, are filled with water in winter and dry out in summer in the same spatial locations. The study area is located in the Castillos Lagoon basin, in the Rocha department, Uruguay (3415'16.9 "S 53 58'51.6 "W; 5-8 meters altitude). Information on species occurrences at the sampling unit level were recorded since 2005 (until 2022 and continue). Databases of species occurrences, species traits, and local environment conditions are provided. ### Species Occurrences FILE: "Supplementary3_Table_3_Ponds_x_Species_Database.xlsx" Matrix with columns: year, month, sampling unit, pond, and 100 species in which each column represent the observation or not of the species. ### Species Traits FILE: "Supplementary1_Table_1_Species_Traits_Database.xlsx" A species-by-trait matrix constructed from literature review and direct observations. The list of traits considered is presented, introducing their description and functional roles. Different traits related to dispersal strategy, competitive ability, drought resistance strategy, life history, and tolerance to stress were considered. ### Functional roles of Species Traits FILE: "Supplementary2_Table_2_Descritpion_of_Traits_and_Functional_role" A brief summary of the functional roles potentially associated with the species traits ### Environmental data FILE: "Supplementary4_Table_4_Ponds_x_Environmental_variablesEnvironment.xlsx" Environmental variables available for each pond (further information may be upload in the future) A ponds by environmental variable matrix. With columns: X: latitude; Y: Longitude; DM: major diameter (mts), ddmm: minor diamter (mts); Shape: dm/Dm; Islands: Number of islands observed per meter of major and minor diameter (Islands/meter);log.Area: Pond Area (m2) expressed in log10 scale; log.Volumen: Pond Volume (m3) expressed in log10 sclae; Mean.Depth: mean depth of the pond (cm); Sd.Depth: Standard deviation in depth meassures (cm); CV.Depth: coefficient of vairation in depth (cm); Hydroperiod: Frequency of times in which the pond presented water standirized by the number of survies; Degree: number of direct links with other ponds; log.Betweenness: log of the number of couples of ponds that have to pass through this pond to be connected by the shortest path; Closenness: inverse of the topological distance of this ponds with all the other ponds Depth was measured at least 10 times in major and minor axes. Hydroperiod was estimated from a series of survives performed between 2005-2009 in which ponds were visited several times along the year. Community connectivity was quantified by the centrality metrics, degree, closeness, and betweenness estimated on a percolation graph, which is a network that connects all ponds with the minimum linkage Euclidean distance required for linkage. Degree centrality is the number of direct connections of a local pond with other ponds, and closeness centrality is the reciprocal of the average distances of a local pond with all the other ponds in the metacommunity, representing metrics of direct and global connectivity, respectively. The area of the pond was estimated as the area of an oval using the length of the major and minor axes of the ponds. The hydroperiod was estimated as the proportion of sampling times with water for sampling carried out between 2006 and 2009, when the ponds were visited several times. Heterogeneity was estimated as the number of 'islands', emergent mounds above water level, per meter of the main and minor axes of the ponds. The average environmental values during the sampling time were used.