Question

Step 8: Simulate an environment with equal amounts of insects and seeds, but no fruit.
Which flock will be able to eat the most? The least? Why?

Answer 1

I don’t have the details of the specific flocks you used in earlier steps, so I’ll give the general answer and the logic you should use to decide in your simulation. If you tell me what the flocks’ diets/beak types are I can be specific.

General answer
- The flock that can eat both insects and seeds (a generalist or mixed-diet flock) will be able to eat the most.
- The flock that is specialized on fruit will eat the least (zero), because there is no fruit in this environment.

Why
- Resource matching: A bird population’s intake is limited by whether its feeding morphology and behaviour match the available resources. If a flock can use both available resource types it has access to a larger total resource pool.
- Niche breadth and competition: Generalists can switch between food types and therefore avoid intense competition on a single resource. Specialists are forced to compete only within the subset of resource they can use.
- If no generalist exists, then the winner is the specialist whose resource is easier to obtain (higher encounter/handling rate or higher energy per handling time). So with only insect-specialists and seed-specialists:
- If insects are easier/more quickly eaten per bird, insect-specialists will win.
- If seeds are easier/more profitable per handling time, seed-specialists will win.
- Fruit specialists will do worst because their required resource is absent.

If you want a precise prediction for your simulation, tell me the flocks and their diets (or the beak types and which foods each can handle) and the relative encounter/handling rates or numbers of items, and I’ll compute which flock will eat most and least.