Page 2: Research news on animal and plant census

An animal and plant census is a systematic survey method used to quantify the abundance, distribution, and composition of faunal and floral populations within a defined area and time frame. It typically involves standardized sampling protocols such as transects, quadrats, point counts, or capture–recapture techniques, with effort and spatial coverage designed to achieve statistically robust estimates. Data collected include species identity, counts or density estimates, life stage or size class, and habitat parameters. These censuses underpin population monitoring, biodiversity assessment, and ecological modeling, providing baseline metrics for detecting temporal trends, evaluating management interventions, and informing conservation and land-use planning.

Nepal starts tiger census to track recovery

Nepal launched on Tuesday a nationwide tiger census, a key step in conservation efforts to aid the recovery of the big cats that once faced near extinction in the Himalayan nation.

Survey raises estimate of African forest elephant numbers

DNA pulled from the dung of African forest elephants has given experts a more accurate—and higher—population estimate for the elusive animal, but the species remains critically endangered, a study showed Thursday.

Counting salmon is a breeze with airborne eDNA

During the annual salmon run last fall, University of Washington researchers pulled salmon DNA out of thin air and used it to estimate the number of fish that passed through the adjacent river. Aden Yincheong Ip, a UW research ...

page 2 from 4