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20

Though I cannot be 100% sure from the sound quality, it certainly does sound/seem like bats are making the calls you are hearing/seeing. I spent a number of years as a bat bioacoustics researcher and I came across similar sounds frequently and was able to confirm they came from foraging bats. I'll have to see if I can find any old spectrograms or ...


12

Adding some additional database sources: -- Climate -- Prism The PRISM Climate Group gathers climate observations from a wide range of monitoring networks, applies sophisticated quality control measures, and develops spatial climate datasets to reveal short- and long-term climate patterns. WorldClim WorldClim is a set of global climate layers (climate ...


11

kmm's answer is correct; I just want to add some of my points on what kind of data should follow Gaussian distribution. Unless you know from observation that a process doesn't follow a Gaussian distribution (e.g., Poisson, binomial, etc.), then it probably does at least well enough for statistical purposes. I won't fault kmm for this statement ...


10

For species occurance data the Global Biodiversity Information Facility (http://www.gbif.org/) database should be an obvious choice. It contains both historical records from museums etc and information from more recent surveys and inventories. Note that the occurrence data can both come from standardized inventories and observational records from specialists ...


10

For climate related data you can start from Realclimate pages on data repository. For ecological data I always found less global data, but a good starting point may be the Ecological Society of America Data Registry page. An overview of repositories can be found the the Simmons University Open Access Directory.


9

You raise two issues, both of which might be better suited for stats.SE, but I think the questions are suitably biological to warrant an answer here. Do most biological processes follow a Gaussian distribution? Unless you know from observation that a process doesn't follow a Gaussian distribution (e.g., Poisson, binomial, etc.), then it probably does at ...


7

-- Traits -- TRY TRY is a Plant Trait Database. More formally, it's a network of vegetation scientists headed by DIVERSITAS/IGBP, and the Max Planck Institute for Biogeochemistry, providing a global archive of curated plant traits. BioTraits This is an online resource for empirical data on how biological traits respond to environmental drivers such as ...


6

There does not appear to be a current standard, but Veg-X is a standard that has been developed to facilitate exchange of plot-based vegetation data, and may provide the closest to what you are looking for. Veg-X is described in Wiser et al 2011 and the project home page is http://wiki.tdwg.org/Vegetation/ From the abstract: The exchange standard for ...


5

Have you tried the Ecological Data Wiki? It's an NSF-funded repository of links to ecological databases and datasets: Main page: http://ecologicaldata.org Find data tab, refined to Taxon=Birds, Ecological level=Species: https://ecologicaldata.org/search?f[0]=taxonomy_vocabulary_2%253Aname%3ABirds&f[1]=taxonomy_vocabulary_6%253Aname%3ASpecies The '...


5

I would recommend just downloading the database, which HUGO allows you to do free of charge. The HUGO website has a "downloads" tab at the top that takes you to the following page http://www.genenames.org/cgi-bin/statistics You will see a table of statistics relating to how many protein- or non-protein-coding genes there are catalogued, etc. Under the ...


5

In the second figure – What does the color scale and color coding represent? Each color is an individual mosquito species, arranged the same from top to bottom on all plots. Here, on the left, all species are gathered on one plot, with the y-axis now labeled “Species.”   The sounds of many mosquitoes apparently have ...


5

The simplest difference is the scale and range. The aim of 1000 genome project was to provide comprehensive library of human genetic variation. DNA of individuals coming from different ethnic groups, geographic locations were sequenced and the results of the study were published here. Genomes from NCBI come from different organisms and the number of ...


4

The radius of tree is not a good measure of the tree age, the most efficient technique to know the age of a tree is with dendrochronological methods, this is the less invasive technique. However, knowing very well the dynamics of growth of each species you can infer the age, check out this study: Jan Lukaszkiewicz and Marek Kosmala. 2008. Determining the ...


4

It is just a way of highlighting your search term. If you search M00115+C03722, you will see C03722 in red.


4

You are right to be suspicious. I would contend that, in most situations, hypothesis tests based on the normal distribution are not appropriate. If hypothesis testing is needed, a permutation test should almost always be used. As WYSIWYG points out, there is no reason to assume a measurement is normal distributed without strong a priori knowledge. The ...


3

A good baseline for this type of research in human genetics is Standards and guidelines for the interpretation of sequence variants from ACMG. It is a guideline for clinicians, and it gives a good sense of good variants data, bad variants data and setting up confidence level. Try to consolidate data from: Population databases GWAS databases Exome ...


3

You may try the data for "Colon Adenocarcinoma" made by the TCGA project: http://gdac.broadinstitute.org/runs/analyses__2015_04_02/reports/cancer/COAD/ The file with mutations called by the tumor against a matched normal, http://gdac.broadinstitute.org/runs/analyses__2015_04_02/reports/cancer/COAD/MutSigNozzleReport2.0/COAD-TP.final_analysis_set.maf What ...


3

Here's a good start: http://www.aylward.org/notes/open-access-medical-image-repositories. I understand that this question was somewhat googleable, but perhaps amassing a collection of curated resource links is constructive here since a search through the exchange revealed no prior inquiries into this topic. Update: For those who are interested in ...


3

M00115 is a pathway module (NAD biosynthesis) whereas M00542 is a signature module (EHEC/EPEC pathogenicity signature). From the KEGG page on modules: pathway modules – representing tight functional units in KEGG metabolic pathway maps, such as M00002 (Glycolysis, core module involving three-carbon compounds) signature modules – as markers of ...


3

In my opinion you should use this formula: $$ \frac{\text{log}_2(\text{Iso}_1/\text{Iso}_2)}{\text{log}_2(\text{GAPDH})} $$ This will normalize the relative fold differences between the isoforms with the loading control- GAPDH. Since both numerator and denominator are log transformed they are in comparable domains unlike the formula-2 that you mention in ...


3

I am also a little confused about what exactly do you mean by "data type". As far as I know in programming "data type" is something you use to obstruct 0s and 1s e.g string, int and array is the way you'd reference your own data and something that language interpreter/compiler can understand and allocate right memory for. Whereas type of data you can get in ...


3

Two styles of graph come to mind. A simple 2 layer histogram showing the distribution of gland counts for each year. This is a kernel density as opposed to a histogram, but it gets the idea across. Line graph with year on the x-axis and gland count on the y-axis, with a colored line for each plant. This would show a little more detail, and would be better ...


3

Here is the link to the 1000 Genomes project, all the data is available for download. They already have a comprehensive list of SNPs as well. It is not the only project around but it is definitely the one with more accurate data on so many genomes right now.


3

Biological specimens are ordered in museums phylogenetically. So all the birds are in one place, and the insects in another. Fossils are generally kept in their own place. Different museums may have their own standards, but most sort specimens phylogenetically as well. But alphabetical sorting also happens. So that all the members of a family are in one ...


2

I will not go too deep into the details but here some information to facilitate your understanding of these ubiquitous statistics in biology. The F, $r^2$ and p-value are all equivalent statistics to measures the goodness-of-fit of a model against the data. The F is the ratio of the $unexplained~variance~/~explained~variance$. I let you look out what the ...


2

In order to date the age of a tree, you have three solutions : If you can cut the tree then you can simply count the number of rings. Note that for very old trees the central rings will have rotted and you will only have a lower bound on its age. If some parts of the tree are dead, you can use radiocarbon dating to estimate the time of death with a ...


2

That module represents Entner-Duodoroff pathway, which is an alternative pathway to the Embden-Mayerhof-Parnas pathway of glycolysis. Entner-Duordoff pathway exists only in prokaryotes.


2

Module means, as defined in the KEGG Module page, a functional unit. So it can be anything, from groups of enzymes to genes to metabolites. About the two that concerns you: Pathway modules represent groups of functionally related enzymes part of the metabolic network. I think this one is easy to understand because it represents the classical understanding ...


2

Open-access medical images: MedPix (by keyword, organic system, pathology and diagnosis A-Z) Radiopaedia (by keyword) PEIR Radiology (by keyword, organ or anatomic region) Ultrasound Cases (by keyword and organic system) Open Access Biomedical Image Search Engine (Openi) (by keyword) Wikimedia Commons (by keyword) Google image search (using the filter "...


2

One way of doing this is to run a protein BLAST search at NCBI in which you specify the Protein Data Bank as your database, as in the example shown below: The results will be all for proteins in the PDB.


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