We review the phylogeny, sperm competition, morphology, physiology, and fertilization
environments of the sperm of externally fertilizing fish and amphibians. Increased sperm …

Simple Summary Integrating reproductive technologies into amphibian conservation
breeding programs can enhance the propagation and the genetic management of …

Amphibians and reptiles are experiencing serious declines, with the number of threatened
species and extinctions growing rapidly as the modern biodiversity crisis unfolds. For …

Anthropogenic environmental change has led to unprecedented rates of species extinction,
presenting a major threat to global biodiversity. Among vertebrates, amphibians have been …

Current rates of biodiversity loss pose an unprecedented challenge to the conservation
community, particularly with amphibians and freshwater fish as the most threatened …

Amphibian populations in the wild are experiencing massive die-offs that have led to the
extinction of an estimated 168 species in the last several decades. To address these …

Amphibians have experienced a catastrophic decline since the 1980s driven by disease,
habitat loss, and impacts of invasive species and face ongoing threats from climate change …

As amphibian populations continue to decline, both government and non-government
organisations are establishing captive assurance colonies to secure populations deemed at …

The evolution of sperm quality and quantity is shaped by various selective processes, with
sperm competition generally considered the primary selective agent. Particularly in external …

Each amphibian species is evolutionarily distinct, having developed highly specialized and
diverse reproductive strategies in both terrestrial and aquatic environments. These unique …