Simple Summary Freshwater crayfish play critical roles in their ecosystems; however, non-
native species are increasingly threatening native crayfish populations worldwide. Here, we …

The concept of native range in invasion biology is difficult to define since, in many cases, this
type of range is unknown and cannot be determined. We investigate the uncertainties …

North American cambarid crayfish have been highly successful in establishing and
spreading across Europe and are now over-invading earlier arrivals in many water bodies …

We examined the impact of dominance on crayfish social spacing and resource control.
Spatial distributions of individual crayfish, Orconectes propinquus, were recorded from five …

Optimizing stocking density and increasing shelters have been thought as strategies to
enhance the performance of crayfish culture. In this study, indoor controlled experiments …

This laboratory study examined the effects of the specific serotonin reuptake inhibitor
fluoxetine on growth following molting and on a range of behaviors in the crayfish …

Simple Summary Aggressive invasive species can outcompete native species in contests
over resources, which can lead to the exclusion of a native species by the invader. Invasive …

Crayfish form social hierarchies through aggressive dyadic interactions. During hierarchy
formation, individual crayfish emerge as dominants or subordinates, and continue to express …

Male Xenopus laevis frogs produce underwater advertisement calls that attract gravid
females and suppress calling by male competitors. Here we explore whether groups of …

Aggressive encounters between invasive and native species are considered a key threat
associated with the spread of invasive species. Extrinsic factors such as habitat complexity …