Global climate fluctuations have significantly influenced the distribution and abundance of
biodiversity [1]. During unfavorable glacial periods, many species experienced range …

Tropical birds are purported to be longer lived than their temperate counterparts, but it has
not been shown whether avian survival rates covary with latitude worldwide. Here, we …

More than 25% of species assessed by the International Union for Conservation of Nature
(IUCN) are threatened with extinction. Understanding how environmental and biological …

Biometrics form a key characteristic of a species. Here, we provide a summary of biometrics
held by the South African Bird Ringing Scheme (SAFRING), which was initiated in 1948 …

Context Human land-use transformation has fragmented natural landscapes around the
world, with fragmentation currently being considered a global threat to biodiversity …

Estimates of bird numbers through quantification of density and range sizes are necessary
for decisions regarding conservation status, yet counts of birds are often confounded by …

As an endemic bird to the Fynbos biome, prominently featured in literature and marketing
material for the avifauna of the continent, the Cape Rockjumper Chaetops frenatus is an …

This article calculates estimates of avian longevity for southern African Passeriformes and
demonstrates the impact citizen scientists have on data volumes curated by the South …

Migrating animals are known to play an important role in nutrient transfer over short
distances; however, this phenomenon has not been well studied for long-distance migrants …

Mimicry is often invoked as a classic demonstration of the power of natural selection.
However, mimicry systems are diverse and the accuracy of mimicry, or mimetic fidelity …