Everything about Granivore totally explained
In
zoology, a
granivore is an
herbivorous animal which selectively eats the nutrient-rich
seeds produced by plants, including those of
gymnosperms. Most true granivores are
insects or
birds or
mammals. The former group includes many different kinds of
true bugs,
ants, and
beetles, but also a few types of
moths and even some
parasitic wasps. The latter group includes many different
finches and numerous other related groups such as the
Hawaiian honeycreepers. Granivory is especially prevalent in desert habitats, as seeds are persistent.
Insects
Harvester ants, weevils (Curculionidae), bruchid beetles (Bruchidae), moths, wasps and others feed on seeds.
Yucca moths and
fig wasps feed on seeds and pollinate the plant in tightly co-evolved relationships.
Birds
Many of the typical backyard feeder birds eat a lot of seeds, but are not strict granivores; they eat a lot of insects too. Species that feed primarily on seeds as adults will often rear their young on insects instead. More strict granivores such as
Goldfinches feed their young regurgitated seeds.
Acorn woodpeckers form large granaries, but take a lot of insects too.
Clark's nutcracker and the
Pinyon Jay, similarly require pine seeds but supplement them with other items.
Crossbills are also highly reliant on conifer seeds.
Further Information
Get more info on 'Granivore'.
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