C. Hennig. How many bee species? A case study in determining the number of clusters. In Data Analysis, Machine Learning and Knowledge Discovery, M. Spiliopoulou, L. Schmidt-Thieme, R. Janning (eds.), Springer, Berlin, 41-49, 2013.
Although a small number of bee species are important for crops such as oil-seed rape, apples and strawberries, experts say we should be taking care of all our bees. Researchers say conservation (保护) efforts should be aimed at a wide number of species—even those that contribute little to...
where we investigated a largely unregulated, growing honeybee density in an area of rich wild bee diversity. Based on an inventory of 462 wild bee species documented since 1990 in Vienna and the information of apiary locations gathered with the support of the beekeeping community, we created a g...
We live in a ‘throwaway culture‘, where many of our things aren’t built to last. Each year, every house in the UK produces about1 tonne of waste– that’s about the same weight as agreat white shark! What’s worse, is that60%of what we throw away, is actuallyrecyclable! That’...
How many ___ known altogetherA.species of fishes areB.species of fish isC.specieses of fish areD.species of fish are 免费查看参考答案及解析 题目: How many ___ are there on your farmA. sheep B. sheeps C. sheepes 免费查看参考答案及解析 题目: How many ___ can you see in the...
How long does a queen honey bee live? How many feathers does an ostrich have? How many babies do ostriches have? How long does a queen bumble bee live? How many species of ostriches are there? How long can a queen bee live without food? How many pincers does a lobster have? What do...
How many eggs does a queen bee lay? How many teeth did dinosaurs have? How many species of lemurs are there? How many babies do cane toads have? How many species does the class Aves have? How many legs do ants have? How many sauropods species were there?
We’re not the only animals that suffer anxiety. From lizards to song sparrows, challenging situations can have long-lasting impacts on species.
weapons; they’re not designed for killing elephants; they’re not good at killing elephants. You have to spray an elephant with bullets or be a very experienced shot to kill one immediately,” Pope said, adding that many of the elephants you’ll see in the wild “are the walking ...
With so many pollinating species facing an ecological tipping point, those non-profits and the others listed here need your donations to educate the public. Among the teaching programs offered by Pollinator Partnership: theBee Smart School Garden Kit, an online planting guide calledBee Friendly Garde...