To reduce anthropological pressure on the environment, the implementation of novel
technologies in present and future economies is needed for sustainable development. The …

Recent advancements in stress physiology, driven by the relevance of the stress response in
animal welfare and conservation, have focused on alternative techniques beyond blood …

Obtaining endocrine data from alternative sample types such as baleen and other
keratinized tissues has proven a valuable tool to investigate reproductive and stress …

Abstract Purple Martins (Progne subis) are migratory birds that breed in North America and
overwinter and complete their molt in South America. Many of the breeding populations are …

Monitoring hormone concentrations in marine mammals provides valuable information
regarding reproductive status and health. Skin is potentially useful for measuring hormone …

Reproductive costs must be balanced with survival to maximize lifetime reproductive rates;
however, some organisms invest in a single, suicidal bout of breeding known as …

The short-beaked echidna (Tachyglossus aculeatus) is a monotreme endemic to Australia
and New Guinea, and is the most widespread native mammal in Australia. Despite its …

Identifying reliable bioindicators of population status is a central goal of conservation
physiology. Physiological stress measures are often used as metrics of individual health and …

Seventy-three percent of aerial insectivore species of birds breeding in North America have
declined in the past five years. This decline is even greater in migratory insectivorous …

The acquisition, modification, and curation of heads was endemic in the ancient Andes,
especially among the Nasca (1–650 CE) on the south coast of Peru. Analyzing this central …