A study led by Stanford University scientists found that conventional surveying techniques have not only led to some Amazon animal populations being underestimated, but have even missed entire species ...

We compared 2 survey methods for assessing winter bird communities in temperate grasslands: Winter Bird Population Study surveys are area-searches that have long been used in a variety of habitats ...

Scientists are already able to ascertain what species are present in aquatic environments, by analyzing the cast-off DNA which is present in the water. Now, for the first, a team has conducted an ...