Assessing spatial and temporal biases and gaps in the publicly available distributional information of Iberian mosses.

摘要: One of the most valuable initiatives on massive availability biodiversity data is Global Biodiversity Information Facility, which creating new opportunities to develop and test macroecological knowledge. However, potential uses these are limited by gaps biases associated large-scale distributional databases (the so-called Wallacean shortfall). Describing quantifying limitations essential improve knowledge biodiversity, especially in poorly-studied groups, such as mosses. Here we assess coverage publicly-available information Iberian mosses, defining its eventual gaps. For this purpose, compiled IberBryo v1.0, a database that comprises 82,582 records after processing checking geospatial taxonomical information. Our results show metadata Particularly, ca. 42% lacked collecting date information, limits usefulness for time analyses enlarges existing Then evaluated overall several aspects spatial, temporal environmental variability Peninsula. Through assessment, demonstrate mosses presents significant biases. Inventory completeness strongly conditioned recorders' survey bias, particularly northern Portugal eastern Spain spatial pattern surveys also biased towards mountains. Besides, effort intensifies from 1970 onwards, encompassing progressive increase geographic Although just found 5% well-surveyed cells 30' resolution over 1970-2018 period, they cover about fifth main climatic gradients Peninsula, provides fair - though coverage. Yet, anthropised areas some them located under intense land-use changes, mainly due wood-fires last decade. Despite increase, noticeable gap south-west Iberia, Ebro river basin inner plateaus. All call careful use available biogeographical ecological modelling analysis. Further, our highlight necessity incorporating good practices high-quality These include digitalisation specimens improvement protocols get accurate or revisions vouchers field notebooks. procedures quality data. Finally, encourage bryologists establish series re-surveys classical localities would allow updating group, well design their future considering important IberBryo.