Summary 1 A growing number of ecologists are turning to the enumeration of white blood
cells from blood smears (leukocyte profiles) to assess stress in animals. There has been …

Transparency in animals is a complex form of camouflage involving mechanisms that reduce
light scattering and absorption throughout the organism. In vertebrates, attaining …

To reverse the trend of declining wildlife populations globally, individuals must be provided
with conditions that allow them to not just survive, but to thrive. It is no longer only the remit of …

In this study an assessment is made of how the marsh frog P. ridibundus individuals, being
long-term inhabitants of an anthropogenically polluted habitat, are affected and what …

The aim of this study was to evaluate the acute lethality and chronic sublethal effects of
lithium (Li) on Rhinella arenarum tadpoles as model organisms. First a 96 h toxicity assay …

We investigated the effects of four commercial formulations of herbicides (glyphosate [GLY],
metsulfuron-methyl [MET], bispyribac-sodium [BIS], and picloram [PIC]) individually, and in …

In South America, economic interests in last years have produced a constant increase in
transgenic soybean crop**, with the corresponding rise in pesticide formulated products …

Amphibians have complex life cycles with aquatic and terrestrial life and uncovered skins;
therefore, they are exposed to chemical contamination, where dermal exposure is a …

Amphibians are the most threatened group of vertebrates because they have certain
biological and ecological characteristics that make them sensitive to environmental …

Anthropogenic activities may generate significant changes in the integrity of aquatic
ecosystems, so long-term monitoring of populations that inhabit them is crucial. Counting …