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.
Citizen science has allowed regular citizens to participate in data collection as well as expanded biodiversity monitoring. Yet many datasets are still limited to the coverage of certain regions and habitats in particular ...
Plants & Animals
Sep 30, 2025
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85
There are plenty of fish in the sea, but how can you count stock levels or protect endangered fish without seeing or catching them?
Plants & Animals
Sep 15, 2025
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24
An AI-powered satellite counting effort conducted over two years concludes that less than 600,000 wildebeest migrate across the Serengeti-Mara ecosystem each year—half of previous estimates from manned aircraft surveys. The ...
Plants & Animals
Sep 9, 2025
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24
An international network of 30 scientists drew up an inventory of 496 species and 147 subspecies of trees in the Mediterranean region. These data, which are available through open access and include details on species extinction ...
Plants & Animals
Aug 18, 2025
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28
North America has lost an estimated 3 billion birds since 1970—a nearly 30% drop across species—mostly due to habitat loss and degradation. So when a team of researchers repeated a bird population study they did 30 years ...
Ecology
Aug 7, 2025
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257
Dikes are indispensable for bees, especially if they are home to many different plant and flower species. A large census conducted on 157 dikes along rivers in the Netherlands revealed that more and rarer bee species live ...
Plants & Animals
Jul 30, 2025
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89
Nearly 14,000 volunteers took part in the citizen science project Iguanas from Above, helping to count endangered Galapagos marine iguanas through an online survey—and in doing so, contributed to the preservation of this ...
Plants & Animals
Jul 25, 2025
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29
Researchers at the University of Illinois Urbana-Champaign have analyzed 96 years of forest census data to better understand ecological changes and inform management practices.
Plants & Animals
Jul 24, 2025
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25
Invasive plants are meeting their match. Driven by the desire to protect Missouri's ecosystems, a University of Missouri research team created a low-cost method to track the spread of invasive Callery pear trees in mid-Missouri—shedding ...
Ecology
Jul 22, 2025
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32
Researchers have conducted the world's biggest ever bird survey, recording 971 different species living in forests and cattle pastures across the South American country of Colombia. This represents almost 10% of the world's ...
Plants & Animals
Jul 22, 2025
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146
