4,185 reputation
933
bio website slu.se/ecology/tobiasjeppsson
location Uppsala, Sweden
age
visits member for 1 year, 7 months
seen 7 hours ago

Researcher in ecology/conservation biology.

profile for fileunderwater on Stack Exchange, a network of free, community-driven Q&A sites


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reviewed Close How important is the womb's environment?
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reviewed Leave Open DDX11L2 Fusion Site (Human Chromosome #2)
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revised What does the empty space in the bamboo stem do?
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revised What does the empty space in the bamboo stem do?
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revised What does the empty space in the bamboo stem do?
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comment What does the empty space in the bamboo stem do?
@ChrisStronks Because that is the growth pattern of the ancestor of grasses along with current grasses. Why do oaks lack a hollow core? Why do you have 2 ears and not 4? Why do octopus have 8 arms and not 10? Most explanations for these kind of evolutionary contingencies do not have a clear explanation, and most possible explanations will be rather speculative and tentative.
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answered What does the empty space in the bamboo stem do?
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reviewed Close Cause of secondary symptoms of common cold
2d
revised Can someone help me analyze this article?
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20
comment How big should the human population be, as predicted by body mass?
@SlowMagic You're welcome. I enjoyed revisiting some of the litterature and writing it.
Dec
19
revised Did Darwin ever reach the conclusion that selection will remove variation?
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Dec
19
comment Like other animals, why humans don't have species & breeds?
@johnson316 You might find answers to this question interesting as well: Why Did 6 Great Ape Species Survive But Only 1 Hominid Species?
Dec
19
comment Choosing appropriate statistical test for ordinal data
I think this question could be useful to have on the site, since this issue can come up in many biological fields. It is clearly on-topic at stats.stackexchange.com as well, but this does not necessarily mean that it's off-topic here. The choice of methods/assumptions can also interact with the biological process you are trying to model, which is why I think it's on-topic here as well. If questions such as this one is closed, I think we need to close many of the other questions using the statistics tag for fairness.
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19
revised Choosing appropriate statistical test for ordinal data
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revised Choosing appropriate statistical test for ordinal data
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revised Choosing appropriate statistical test for ordinal data
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19
revised Choosing appropriate statistical test for ordinal data
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Dec
19
comment Choosing appropriate statistical test for ordinal data
There are parametric tests for ordinal response variables, which are basically extentions of logistic regressions.
Dec
19
answered Choosing appropriate statistical test for ordinal data
Dec
19
comment Deciduous trees in tropical rainforest
Are you sure that both talk specifically about tropical rainforests? There is also temperate rainforest, where deciduous trees are common. However, there is also seasonal (eg monsoon) tropical rainforest, which have many/mostly decidious trees. I cannot say which types are most common overall though (as in area).