ZOOLOGY 260 Lecture Notes - Lecture 10: Western Honey Bee, Agroecology, Coevolution
2 Feb 2017
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Selfing- self pollination; almost cloning; efficient, not wasteful. Mast- synchronous (at the same time) mass flowering. Aggregation- clumping in groves of at least 1 species. Trap lining- plants flower in a wave so pollinators repeatedly visit specific plants in sequence; follow a circuit. Animal pollination- tl depends on animals, m & a usually do. Mostly insects but also many birds and bats, rarely other mammals. Mutualism- us farming heavily dependent on honeybees trucked to fields. Seed dispersal- dropping seeds below parents does not escape co-evolved see predators/pathogens. Same idea as migration freeing hominins from african pathogens. Plants disperse seeds by wind, water and animals. Animal seed dispersal is sometimes commensalism (animal does not help) and often mutualism (animal does help plant reproduce) Satiate- give them so much they can"t eat anymore; swamping seed predators. Herbivory is pure competition (no mutualism or commensalism) Dilution of risk- ie: plant rarity within diverse communities or mast fruiting.
