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11 votes

Orangish-coloured insect living in wood chips

That is the pupa of a unicorn beetle, Dynastes tityus. https://arthurevans.wordpress.com/2010/09/15/453/
Karl Kjer's user avatar
  • 7,627
6 votes
Accepted

Peacock species identification

That is the male of the Indian peafowl species (Pavo cristatus), also called the blue peafowl or common peafowl. The male is called a peacock and the female a peahen, collectively peafowl, although ...
mgkrebbs's user avatar
  • 8,819
6 votes
Accepted

Database of Geographic Range of Species

This is to a large extent a question of how reliable the data in the database needs to be. Reliability (and spatial scale) will differ between datasets and between species groups within datasets, and ...
fileunderwater's user avatar
5 votes
Accepted

How do animals end up in remote areas?

This question pertains to organism dispersal, which is a very active field of study with relation to it's impact on conservation efforts. Much of what I will say below has been covered in this wiki. ...
FoldedChromatin's user avatar
5 votes

How do animals end up in remote areas?

I don't imagine a frog is going to go hopping over a hill to get to a marsh on the other side, is it? Why not? In wet weather, the conditions would be just fine for an enterprising amphibian to go ...
MattDMo's user avatar
  • 15.2k
4 votes

Beta-diversity for data with zeros

I would recommend using a Bray-Curtis dissimilarity matrix since it accounts for abundances and can handle the so called double zero problem. I'm on my commute now and so must return to this for a ...
theforestecologist's user avatar
4 votes

How do you know which organisms are keystone species?

According to the wikipedia page, a keystone species is: A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. Thus, you could ...
Phototroph's user avatar
4 votes
Accepted

How high into the air are spores of molds commonly occurring?

Air currents can carry bacteria and mold spores into stratospheric altitudes. Early balloon collections found bacteria and mold in air samples at a little above 71 thousand feet altitude. There were ...
shigeta's user avatar
  • 28.2k
4 votes
Accepted

Can two different species in the same genus generally succeed in the same habitat?

It is not correct to say that genera are based on genetic similarity. Different lineages diverge genetically at highly variable rates, and there is no set cut-off for what defines a genus. Instead, ...
Karl Kjer's user avatar
  • 7,627
3 votes
Accepted

Do ring species exist?

While no perfect example exists, there are various different 'ring species' in nature where you have which species are able to interbreed with closely related populations, but there are least two &...
Tyler Mc's user avatar
  • 243
3 votes
Accepted

Reporting observation of a bird outside its seasonal presence

It is NOT a Great Grey Shrike (Lanius excubitor). It is a young Lanius minor Lesser Grey Shrike (which breeds in Bulgaria). I say young (born the same year) because of the white tips of the feathers (...
have fun's user avatar
  • 1,365
3 votes

Database of Geographic Range of Species

The GBIF database that was suggested can give you locations of occurrences given a specific animal. But you asked for lists of animals given some location. An excellent tool to give a list of animals ...
Shawn's user avatar
  • 425
2 votes

Aquatic forest insect identification

This is a caddisfly larvae (Trichoptera). They live in streams and other water that are rich in oxygen. They protect themselves by building there own 'house', with whatever is available, e.g. plant ...
RHA's user avatar
  • 3,657
2 votes

Mechanism for earthworms to get into a roof gutter

I would say that the reason why a given organism reaches a given space relies on four main factors: Morphology and physiology: can that organism reach that place physically? Food distribution: is ...
pawelek zzz's user avatar
2 votes
Accepted

What do we mean by distribution of species?

From the limited context of the quote, it is referring to this definition of distribution (via Merriam-Webster): a : the position, arrangement, or frequency of occurrence (as of the members of a ...
Bryan Krause's user avatar
  • 41.2k
2 votes

What do we mean by distribution of species?

Welcome to Biology.SE! Species distribution is the manner in which a biological taxon is spatially arranged. In the specific sentence you suggest, it seems that the term species range would have ...
Remi.b's user avatar
  • 67.9k
2 votes

Ecology: Indices to calculate species overlap in a community?

If you only care about direct overlap, this sounds like a case for classical correlation coefficients. These answer you whether a high abundance of Species A coincides with a high abundance of Species ...
Wrzlprmft's user avatar
  • 588
2 votes
Accepted

Spider of the American continent spotted Europe. Is it expected?

Argiope is a cosmopolitan genus (the link is for the genus, not the individual species you linked). Argiope species A. bruennchi, and A. lobata are found in Europe in particular. Based on your photos ...
bob1's user avatar
  • 9,413
2 votes

What is a "Valid Species"?

"Valid" in this case is just emphasizing that the Heterotermes perfidus on this island are a different (real) species, and not just a variation of their closest relatives. You need not get bogged down ...
Karl Kjer's user avatar
  • 7,627
1 vote

What is a "Valid Species"?

This will vary from discipline to discipline. In paleontology valid species means a population that can be show to be morphologically distinctive in a way that cannot be better explained as sexual ...
John's user avatar
  • 13.9k
1 vote

Can two different species in the same genus generally succeed in the same habitat?

I don't think you can generalize either way. For an example, take penstemons: https://en.wikipedia.org/wiki/Penstemon Hereabouts I can find 3 or 4 species growing in the same conditions, within a ...
jamesqf's user avatar
  • 3,633
1 vote

Reporting observation of a bird outside its seasonal presence

The wiki article for the great grey shrike is very good and it says: Females are more prone to migration than males; they do not appear to migrate, on average, longer or shorter distances than males, ...
bandybabboon's user avatar
  • 9,322
1 vote

Estimation of species range fragmentation

Very interesting question +1. I don't know the literature on the subject very well but I did not find much by looking for it. I know that a number of methods exist when you have genetic data (...
Remi.b's user avatar
  • 67.9k
1 vote

What are important temperature breakpoints for plant distributions?

Can't help with citations. For temperate climates there are several critical temps that I know of: First one is 0 or possibly -2. The freezing point of water. Most plant cells have enough ...
Sherwood Botsford's user avatar
1 vote

How diverse are species in remote, isolated areas on Earth?

The concept that you hint at, has been studied at the example of the island of Australia, where marsupials often look quite similar as their counterparts in the same ecological niche, which live ...
tsttst's user avatar
  • 1,597
1 vote

Pink growth (aka pink slime) in bathtub or shower

I live in St. Louis, MO and get this in my bathtub over time, but not in my other sinks. I actually think @Christiaan is correct here, but with a few additional observations: I don't think it's ...
Jared Andrews's user avatar
1 vote
Accepted

Fruit Fly Hybrids

Probably they are not all the same species, as there are many fruit fly species in the UK and all over the world. It is also probable that you are not creating hybrids, as fruit flies have quite ...
Athe's user avatar
  • 192
1 vote

Using Canonical Correspondence Analysis on matrices with missing data

First, you cannot fully analyze pair-wise correlations between your environmental variables with NA values, and therefore cannot fully discount including covarying variables. If this is the case, you ...
theforestecologist's user avatar

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