Mate choice in a promiscuous poison frog.

In many animal species, members of one sex, most often females, exhibit a strong preference for mating partners with particular traits or resources. However, when females sequentially mate with multiple partners, strategies underlying female choice are not very well understood. Particularly, little is known if under such sequential polyandry females mate truly randomly, or if they actively try to spread mating events across multiple partners.

The minnow (Leuciscidae) shifts the Adriatic-Black Sea basin divide in the north-western Dinaric Karst region.

Karst landscapes are characterized by intermittent and sinking streams. The most common method used to study underground hydrological connections in karst is tracing tests. However, a more biologically oriented approach has been suggested: analysis of the genetic structure of aquatic organisms.

The value of broad taxonomic comparisons in evolutionary medicine: Disease is not a trait but a !

In this short paper, we argue that there is a fundamental connection between the medical sciences and evolutionary biology as both are sciences of biological variation. Medicine studies pathological variation among humans (and domestic animals in veterinary medicine) and evolutionary biology studies variation within and among species in general. A key principle of evolutionary biology is that genetic differences among species have arisen first from mutations originating within populations.

Southern introgression increases adaptive immune gene variability in northern range margin populations of Fire-bellied toad.

Northern range margin populations of the European fire-bellied toad () have rapidly declined during recent decades. Extensive agricultural land use has fragmented the landscape, leading to habitat disruption and loss, as well as eutrophication of ponds. In Northern Germany (Schleswig-Holstein) and Southern Sweden (Skåne), this population decline resulted in decreased gene flow from surrounding populations, low genetic diversity, and a putative reduction in adaptive potential, leaving populations vulnerable to future environmental and climatic changes.

Genomic consequences of human-mediated translocations in margin populations of an endangered amphibian.

Due to their isolated and often fragmented nature, range margin populations are especially vulnerable to rapid environmental change. To maintain genetic diversity and adaptive potential, gene flow from disjunct populations might therefore be crucial to their survival. Translocations are often proposed as a mitigation strategy to increase genetic diversity in threatened populations.