From an ecological standpoint, this is an
interesting question: do animals reproduce less
when conditions are bad? Normally I encourage
people to test their own hypotheses, but in this
case, I'm going to suggest that you look at the
mouse studies in the literature. That's because
scientists do their best to limit stress and
suffering of animals. Almost all animal
scientists (including me) belong to organizations
with very strict guidelines about how vertebrate
animals can be treated in research. Earlier
studies have shown that stress (even crowding with
plenty of food) decreases reproduction rate in
Invertebrates, plants, and bacteria
are not covered by any welfare guidelines as far
as I know, so you could ask the same question with
them. Ethical issues aside, you will get a faster
answer with most of these organisms. One good
species to use for a study like this would be the
Wisconsin fast plant. It's small plant
from seed to seed in about 40 days.
find out more about them at
fast plants .
Then you can set up different "stress" situations
manipulating things like crowding, light, etc.
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