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Global_Change_Biology
March 2025
Global Change Biology. - 31(2025)3, Art. e70119

Altered Phenotypic Responses of Asexual Arctic Daphnia After 10 Years of Rapid Climate Change

Athina Karapli-Petritsopoulou; Jasmin Josephine Heckelmann; Dörthe Becker; N. John Anderson; Dagmar Frisch

Freshwater ecosystems in the Arctic are important sentinels for climate change, but not much is known about the potential for rapid adaptation of their asexually reproducing key zooplankton members. Applying a resurrection ecology approach to an asexual Arctic Daphnia population, the authors provide evidence for a change in thermal and hypoxia tolerance within a decade.

 

Methods in Ecology and Evolution
March 2025
Methods in Ecology and Evolution. - 16(2025)4, 775-785

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

James Adam Campbell; Samuel Joseph Shry; Petter Lundberg; Olle Calles; Franz Hölker

In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that reduce the accuracy of telemetry positioning. A novel time-of-arrival model is presented. This allows for positioning of aquatic animal in acoustically challenging study areas. It provides good measures of positioning uncertainty and is useful for fine-scale telemetry.