This issue of Management of Biological Invasions includes 8 research articles encompassing early detection and management of invasive alien species, as well as new insights in invasion ecology.

Counihan & Thom assessed the level of trapping effort needed to detect the invasive European green crab (Carcinus maenas) in early invasion stages, and found that a significantly larger trapping effort was needed than conventionally applied in early detection programs on the coast of Washington State and Salish Sea shorelines. Whitehead et al. enriched the early detection toolkit of Zebra mussels (Dreissena polymorpha) in Texas, USA, by demonstrating that canines can be trained to effectively detect zebra mussels in environmental samples. However, environmental DNA (eDNA) analyses remained 2-100 times more sensitive than canine scent detection. Similarly, Flynn et al. propose an accessible, cost-efficient method of hydroacoustic surveying for macrophytes such as Nitellopsis obtuse, and applied this to detect and quantify extensive beds of this invasive charophyte in Irish lakes.

Conry et al. managed to detect zebra mussels in an early stage in Lake Waco (Texas, USA), and showed that in this stage, an impermeable benthic barrier approach can lead to successful eradication of the species. Using an experimental setup, Legrand et al. tested the effects of lime, hydrogen peroxide, and Azamethiphos on the biofouling cover of the colonial ascidian Didemnum vexillum, a marine invader that is spreading rapidly along Norwegian coastlines.

Yarnall et al. examined how reservoir surface elevation patterns, or storage dynamics, vary across reservoirs where quagga mussels (Dreissena rostriformis bugensis) were absent, suspect or established, and found that managed large-magnitude and long-duration drawdowns of reservoirs may serve as a risk-reduction strategy for quagga invasion prevention. Martínez-Peralta et al. evaluated the performance of seeds of different age of the invasive succulent Kalanchoe delagoensis to determine the probability of generating a seed bank under dark-light conditions and constant/alternating temperature to assess photoblastic response and seed tolerance to temperature. We conclude with a review conducted by Li et al. on invasion mechanisms and management measures of the invasive plant Sporobolus alterniflorus. These authors identified key factors enabling invasion mechanisms, and analyzed how they are targeted in current control methods.

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