Insect Unit - FNR 240 UNIT 3
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23 Terms
Insect class
Insecta
Insect phylum
Arthropoda
Insect body segments
Head, thorax, abdomen
Number of insect legs
Six legs (three pairs)
Adult insect wings
Usually two pairs
Coleoptera
Beetles
Lepidoptera
Butterflies and moths
Diptera
True flies
Hymenoptera
Bees, wasps, ants
Hemiptera
True bugs
Importance of insects
Pollination, decomposition, food webs
Primary food for terrestrial birds
Insects
Primary insect food for bird chicks
Caterpillars
Percent of birds needing insects to raise young
About 96%
Percent of flowering plants dependent on pollinators
About 80%
Insect Armageddon
Widespread global insect decline
Insect biomass decline
Over 75% decline in some regions
Major insect threats
Habitat loss, climate change, pesticides, invasives, disease
Why specialist insects decline faster
They rely on specific host plants
Best homeowner action for insects
Reduce lawn size
Why lawns are ecological deserts
Low biodiversity and food resources
Best native trees for insects
Oaks and willows
Note 
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