We present an overview of the global spatiotemporal distribution of avian biodiversity,
changes in our knowledge of that biodiversity, and the extent to which it is imperilled. Birds …

Artificial intelligence has been applied in wildfire science and management since the 1990s,
with early applications including neural networks and expert systems. Since then, the field …

Functional traits offer a rich quantitative framework for developing and testing theories in
evolutionary biology, ecology and ecosystem science. However, the potential of functional …

There is increasing availability and use of unstructured and semi‐structured citizen science
data in biodiversity research and conservation. This expansion of a rich source of 'big …

Traditional data sources are not sufficient for measuring the United Nations Sustainable
Development Goals. New and non-traditional sources of data are required. Citizen science …

Ecological and environmental citizen‐science projects have enormous potential to advance
scientific knowledge, influence policy, and guide resource management by producing …

Quantifying the abundance of species is essential to ecology, evolution, and conservation.
The distribution of species abundances is fundamental to numerous longstanding questions …

Around the globe, thousands of research projects are engaging millions of individuals—
many of whom are not trained as scientists—in collecting, categorizing, transcribing, or …

Although eco-acoustic monitoring has the potential to deliver biodiversity insight on vast
scales, existing analytical approaches behave unpredictably across studies. We collated …

For vertebrates, annual cycles are organized into a series of breeding and non-breeding
periods that vary in duration and location but are inextricably linked biologically. Here, we …