Levels of biodiversity insurance: species dispersal, establishment, fi ltering and assembly in a changing world – glimpses of an ecologist engaged to limnology

Török, Péter and Tóthmérész, Béla (2025) Levels of biodiversity insurance: species dispersal, establishment, fi ltering and assembly in a changing world – glimpses of an ecologist engaged to limnology. STUDIA BOTANICA HUNGARICA, 56 (1). pp. 155-168. ISSN 0301-7001

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Abstract

To address the response of ecosystems to global change it is a pivotal task to study the dynamics of communities that structure natural and semi-natural ecosystems. We highlighted new aspects of spatial insurance theory (ecosystem functionality and stability are enhanced by high biodiversity) by introducing three levels of biodiversity insurance: i) landscape-level insurance, ii) habitat-level insurance, and iii) temporal insurance. Based on the above introduced three-levelscheme of biodiversity insurance we identifi ed and summarised several research directions and questions which could be considered in future research. For the better understanding of landscapelevel insurance of biodiversity, it is important to quantify the habitat-specifi c species pools of several terrestrial and aquatic ecosystems, both at the local and landscape-scale. Considering the biodiversity insurance at the habitat level, it is vital to analyse the eff ect of abiotic and biotic fi ltering on species and functional diversity both in terrestrial and aquatic communities, and also to analyse how the eff ects of habitat level fi ltering processes are infl uenced by diff erent levels of stress and disturbance. Finally, considering the temporal insurance of biodiversity it is important to determine how species traits interact with temporal biodiversity fi lters and use that knowledge to predict how species assemblages respond to a range of fi lter combinations.

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