- Sep 2021
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bio.libretexts.org bio.libretexts.org
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Characteristics of K-selected and r-selected species
Do species always fall under one of the two extremes? Are there any species that display some attributes of K selection and some of r?
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bio.libretexts.org bio.libretexts.org
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number marked first catch∗total number of second catchnumber marked second catch=N
I didn't know that this was how mark and recapture worked. It is a simple but interesting equation. I would assume the accuracy of this method varies from species to species.
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bio.libretexts.org bio.libretexts.org
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During this process, we expect to see distinct populations representing incipient species - species in the process of formation. Some researchers may describe these as subspecies or some other sub-category, according to the species concept used by these researchers.
This is interesting to me. I had not heard the term incipient species before.
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bio.libretexts.org bio.libretexts.org
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then cultural diversity of human populations and the ways that these populations use or otherwise interact with habitats and other species on Earth are a component of biodiversity too.
Does this mean that studies in topics such as sociology and social psychology can be prevalent in human ecological research and visa versa?
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bio.libretexts.org bio.libretexts.org
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some turtles and other reptiles have temperature-dependent sex determination (TSD). TSD means that individuals develop into males if their eggs are incubated within a certain temperature range, or females at a different temperature range.
This is interesting to me. I'm interested to know the mechanism of such a dramatic difference in genomics being triggered by temperature.
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bio.libretexts.org bio.libretexts.org
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The effect of natural selection on gene frequencies can be quantified.
Could we go through a few examples of questions like this in class?
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bio.libretexts.org bio.libretexts.org
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The process of speciation within the same space is called sympatric speciation; the prefix “sym” means same, so “sympatric” means “same homeland” in contrast to “allopatric” meaning “other homeland.”
Do sympatric speciation and allopatric speciation occur at relatively the same rate or does the demand from different environments push allopatric speciation to occur more quickly?
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that offspring, called a hybrid (a cross between two species), would probably be infertile—unable to successfully reproduce after it reached maturity
This case of producing infertile hybrid offspring also occurs when breeding a horse with a donkey, as well as when breeding a lion with a tiger.
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bio.libretexts.org bio.libretexts.org
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they may develop those policies and legislation themselves
What level of schooling would be necessary for an ecologist to develop their own legislation? Is a degree in law necessary?
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Mutualism is a form of a long-term relationship that has coevolved between two species and from which each species benefits.
Mutualistic relationships between species sharing a habitat are quite prevalent and often necessary for the survival of either species. For example, the establishment of mycorrhizae between subterrestrial fungi and the roots of plants provides critical nutrient exchange that keeps many species alive.
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