Waterbird indicator for oligotrophic and eutrophic habitats ... : Vesistötyyppikohtainen vesilintuindikaattori ...

• Main Author: Piha, Markus
• Format: Dataset
• Language: Finnish
• Published: Luonnonvarakeskus 2023
• Subjects: vesilinnut; vesistöt; parilaskenta; kannankehitys; Ecology, evolutionary biology; Ekologia, evoluutiobiologia; Ekologi, evolutionsbiologi; water system areas; vesistöalueet; vattendragsområden; state of water systems; vesistöjen tila; vattendragens tillstånd; water birds; čáhcelottit; vattenfåglar; dabbling ducks; puolisukeltajasorsat; beallebuokčevuojažat; simänder; anseriformes; sorsalinnut; andfåglar; population dynamics; kannanvaihtelut; populationsförändringar; Cygnus cygnus; Gavia arctica
• Online Access: https://dx.doi.org/10.23729/9b7d91ee-fc87-46c9-a62e-7c6b2f1b55e8; https://etsin.fairdata.fi/dataset/f8eeaf15-5a3c-4467-90a8-eb5bfcc98248

Multispecies waterbird indicators for oligotrophic and eutrophic habitats. Includes annual indices and smoothed trends. Trends are scaled so that both indicators have value 100 in 1995. ## Data quality description Published indicator values. Raw data (waterbird pair counts) is collected by volunteers. Indicators are calculated from curated data set with published methodology. ## Methods Raw data (waterbird pair counts) is collected by volunteers. Indicators are calculated from curated pair count data set with methodology previously published by Lehikoinen et al. 2016 and Soldaat et al. 2017. Indicator of oligotrophic habitats was calculated using the habitat and species specific indicators of Anas platyrhynchos, Anas crecca, Mareca penelope, Bucephala clangula and Cygnus cygnus and the indicators of species that are found almost solely from oligotrophic habitats (Mergus merganser, Mergus serrator and Gavia arctica). Indicator of eutrophic habitats was calculated using the habitat and species specific ... : Suomen vesilintujen parilaskenta-aineiston avulla lasketut monilajiset kannankehitystä kuvaavat indikaattorit karuille ja reheville vesistötyypeille. Molempia vesistötyyppejä kuvaavien indikaattoreiden (MSI = multispecies indicator l. monilajinen indikaattori) arvot on skaalattu siten, että niiden trendikäyrien arvona on 100 vuonna 1995. ...