Spearhead blues: How threats to the damselfly Coenagrion hastulatum changed over time (2023)

Termaat, T., Ketelaar, R., van Kleef, H. H., Verberk, W. C., van Grunsven, R. H., & WallisDeVries, M. F., 2023

We investigated how various environmental pressures, including former drivers of decline, have affected populations of the regionally endangered damselfly Coenagrion hastulatum and how their
relevance has evolved over time. In our analysis, we compared water quality, vegetation properties and population trends
across three distinct time spans: 1921–2000, 2001–2015 and 2016–2021.