Hydrological dynamics, wetland morphology and vegetation structure determine riparian arthropod communities in constructed wetlands

The data consists of data collected by 41 constructed wetlands in southern Sweden, where water level measurements were conducted between April 2020 and February 2023, and where vegetation height, grazing animal presence/absence, and flooded grassland area was measured in 2020. The data also includes collected abundances of riparian arthropods that were captured using SLAM (Sea Land and Air Malaise) trapping, pitfall trapping and vacuum sampling at three times during the spring and summer of 2020; late May, late June to early July and late August to early September. The arthropods were identified to genus level for spiders, beetles, predatory diptera and tipulidomorphs, whereas the remaining taxa were identified to family level. , Arthropod collections
During three periods of spring and summer of 2020 (late May, late June to early July and late August to early September, we collected riparian arthropods by the wetland using three capturing techniques. SLAM (Sea Land and Air Malaise) traps were placed <2m from the water edge during three nights at all collection periods whereas triplicate 70mm diameter pitfall traps were used during May collections, along a 10m gradient parallel to the wetland shoreline within 5m of the SLAM trap. Both SLAM and pitfall traps contained soapy water as the killing agent. Vacuum sampling was performed in late June to early July and late August to early September using a converted Stihl™ BG85 Leaf blower in triplicate along a 10m gradient parallel to the wetland shoreline delineated with a 45cm diameter hoop, where samples were manually collected using a pooter, after evacuating the contents into a collection container. All arthropod samples were stored in 70% ethanol and were later..., , # Data for: Hydrological dynamics, wetland morphology and vegetation structure determine riparian arthropod communities in constructed wetlands.

[https://doi.org/10.5061/dryad.2280gb62c](https://doi.org/10.5061/dryad.2280gb62c)

## Description of the data and file structure

**Files and variables**

#### File: dat\_orders.txt

**Description:** Data on arthropod abundance on order level

##### Variables

* loc - Site ID

- inund - [%] inundation frequency across all days in 10m radius around SLAM trap
- l_flood - Calculated total wetland flood zone area [m2] (log-transformed)
- l_elv - Difference in altitude between water surface and SLAM trap [m] (log-transformed)
- grazing - Presence or absence of grazing livestock [Yes/No]
- high_wl_ampl - Water level amplitude, mean water level subtracted from 95%-percentile water level
-  high_wl_max - Maximum consecutive days water level was higher than half way between mean water level and the altitude of the SLAM trap
- low_wl_max - Maximum cons...,