If habitat destruction or overexploitation of populations is severe, species loss can occur
directly and abruptly. Yet the final descent to extinction is often driven by synergistic …

The identification of population bottlenecks is critical in conservation because populations
that have experienced significant reductions in abundance are subject to a variety of genetic …

There is broad concern that a mass extinction of amphibians and reptiles is now underway.
Here I apply an extremely conservative Bayesian method to estimate the number of recent …

Natural history collections provide an immense record of biodiversity on Earth. These
repositories have traditionally been used to address fundamental questions in …

Many museums and academic institutions maintain first-rate collections of biological
materials, ranging from preserved whole organisms to DNA libraries and cell lines. These …

Information from natural history collections (NHCs) about the diversity, taxonomy and
historical distributions of species worldwide is becoming increasingly available over the …

In recent decades, global climate change [1] has caused profound biological changes
across the planet [2–6]. However, there is a great disparity in the strength of evidence …

La dinámica espacial de anfibios se asemeja de muchas maneras a los modelos
metapoblacionales clásicos donde las subpoblaciones en los estanques de reproducción …

Housed worldwide, mostly in museums and herbaria, is a vast collection of biological
specimens developed over centuries. These biological collections, and associated …

Plant specimens stored in herbaria are being used as never before to document the impacts
of global change on humans and nature. However, published statistics on the use of …