opulation size
Why do scientists use things like footprints or droppings to guess how many animals are around, even though those clues might not be as accurate as just counting or using cameras?
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bio.libretexts.org bio.libretexts.org
- Aug 2025
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bio.libretexts.org bio.libretexts.org
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Figure 1.2.31.2.3\PageIndex{3}: The wild lupine Lupinus perennis is the host plant for the Karner blue butterfly.
I have many of these in my backyard. They bring in lots of butterflies and birds.
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Within the discipline of ecology, researchers work at four specific levels, sometimes discretely and sometimes with overlap: organism, population, community, and ecosystem (Figure 1.2.11.2.1\PageIndex{1})
How are the organism, population, community, and ecosystem levels connected in ecology?
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