What's the definition of 'natural prey' and 'natural predator'?
2022年4月3日 · The only natural predator of leopard seals is the killer whale. The Wikipedia article on Leopard says. The leopard is primarily threatened by habitat fragmentation and conversion of forest to agriculturally used land, which lead to a declining natural prey base, human–wildlife conflict with livestock herders and high leopard mortality rates.
population genetics - Does the term "fitness advantage" or "fitness ...
2017年10月25日 · Natural selection If we grouped these individuals based on genetics, then the genotypes having a fitness advantage will likely raise in frequency in the population. If we used phenotypic trait to group individuals and if the trait is heritable , then the frequency of these phenotypic traits is also likely to raise in frequency in the population.
Why do humans find baby animals cute? - Biology Stack Exchange
2015年7月6日 · As these are potential competitors (when grown up!) or even natural enemies (like e.g. tigers, leopards, ..), the protection instinct (reasonable for the babies of your species) should therefore not apply. I can't imagine any reason why evolution let mankind adore foreign species that much.
Are there predators evolved to eat puffer fish?
2013年2月24日 · It seems that susceptibility to tetrodotoxin varies a lot from one animal to another, and so some natural variation might allow a reasonable amount of predation to occur. I also wonder whether the variation in the amount of toxin in …
What prevents predator overpopulation? - Biology Stack Exchange
It seems like the natural tendency would be for (for example) the sharks to continue breeding and eating until all the fish are gone, or the wolves to eat all the deer, etc. Obviously some predators have predators of their own, but that's just putting off the question: if the hyenas don't overpopulate because the lions eat them, then what's ...
What does fitness really mean? - Biology Stack Exchange
What is the right decision? The more you wait, the closest you will be to the long term effect of natural selection. The less you wait, the more probable you will suffer of genetic drift. 4) Fitness is just a measure of natural selection that is not perfectly accurate because it is …
ecology - Examples of humans intentionally introducing non …
The best examples are for when non-native pest species arrive, and then a search for their natural enemies in their native countries is undertaken to bring them back and control the invaders. This is called "biocontrol", and there are many examples of it …
How to introduce predators to a simulated ecosystem?
2016年8月17日 · What you're trying to do sounds really cool. I feel that you can do the following: 1) Increase reproductive period of predators
ecology - Can predator-prey relationship be an example of …
Natural enemies boost deep evolutionary fitness? 25. What prevents predator overpopulation? 6. Premise of ...
Ecomorphs as evolutionary definitions - Biology Stack Exchange
$\begingroup$ Evolution by natural selection is not a stochastic process. Only the generation of genetic variation is stochastic. The question is how much evolution is governed by natural selection versus genetic drift, which is stochastic, and …