Estimates of narwhals summering in Canadian Arctic waters have improved because of new techniques. Previous estimates had placed populations between 20,000 and 30,000. New estimates increase that ...

One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...

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 ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...

Balancing the need for accurate estimates of wild ungulate populations with survey costs continues to challenge wildlife biologists. We present a case study to evaluate the feasibility of using ...

A silent, educational film about Second Order Triangulation would explore how this intermediate stage in establishing accurate survey frameworks refines and densifies the primary geodetic control ...

Bioacoustic recorders could provide us with vital additional information to help us protect rare and endangered birds such as the European nightjar, new research has shown. The study found that newly ...

WorkTango reports that investing in employee surveys is crucial for 2026 HR budgets to enhance engagement, productivity, and ...