Type: | Package |
Title: | Statistics Tutorials for Biologists |
Version: | 1.0.4 |
Author: | Rob Knell |
Maintainer: | Rob Knell <r.knell@qmul.ac.uk> |
Description: | Tutorials for statistics, aimed at biological scientists. Subjects range from basic descriptive statistics through to complex linear modelling. The tutorials include text, videos, interactive coding exercises and multiple choice quizzes. The package also includes 19 datasets which are used in the tutorials. |
Encoding: | UTF-8 |
LazyData: | true |
Imports: | learnr |
Suggests: | ggplot2, car, plotrix, knitr, rmarkdown |
License: | GPL-3 |
VignetteBuilder: | knitr |
RoxygenNote: | 7.1.1 |
NeedsCompilation: | no |
Packaged: | 2022-01-18 14:04:19 UTC; ugbt794 |
Depends: | R (≥ 3.5.0) |
Repository: | CRAN |
Date/Publication: | 2022-01-18 14:22:43 UTC |
Brain and body mass for carnivore species
Description
Data on mean brain and body mass for 199 species from the carnivora.
Usage
data("carnivores")
Format
A data frame with 199 observations on the following 7 variables.
Binomial
binomial species name
order
order name
family
family name
genus
genus name
species
species name
Mean_brain_mass_g
mean brain mass for that species in g
Mean_body_mass_Kg
mean body mass for that species in Kg
Source
Burger, Joseph Robert; George, Menshian Ashaki; Leadbetter, Claire; Shaikh, Farhin (2019), Data from: The allometry of brain size in mammals, Dryad, Dataset, https://doi.org/10.5061/dryad.2r62k7s
References
Burger, J.R., George, M.A., Leadbetter, C. & Shaikh, F. (2019) The allometry of brain size in mammals. Journal of mammalogy, 100, 276-283.
Examples
data(carnivores)
str(carnivores)
Cricket song dataset
Description
Data on condition, resource availability (food quality) and sexual signalling (calling song) in the decorated cricket, Gryllodes sigillatus.
Usage
data("cricket_song")
Format
A data frame with 568 observations on the following 5 variables.
Diet
total nutritional content of the diet in percent
Pronotum
Pronotum width in mm
Mass0
mass at the start of the experiment in g
Delta_smi
change in weight over the first week in g
Song_week1
Total amount of time the animal sang in the first week of the experiment in seconds
Source
Houslay, Thomas M. et al. (2017), Data from: Mating opportunities and energetic constraints drive variation in age-dependent sexual signalling, Dryad, Dataset, https://doi.org/10.5061/dryad.tj693
References
Houslay, T.M., Houslay, K.F., Rapkin, J., Hunt, J. & Bussi??re, L.F. (2017) Mating opportunities and energetic constraints drive variation in age-dependent sexual signalling (ed C Miller). Functional ecology, 31, 728-741.
Examples
data(cricket_song)
str(cricket_song)
Finch colouration and mitochondrial function
Description
Data on the hue of the red feathers and a series of measures of mitochondrial function in 36 male house finches Haemorhous mexicanus at a time when they were moulting and therefore actively producing red carotenoids.
Usage
data("finch_colours")
Format
A data frame with 36 observations on the following 5 variables.
ID
ID number for the individual bird
Hue
Hue of the red feathers. Lower values are redder
C1RCR
"Respiratory Control Ratio", calculated by dividing the maximum respiration rate by the basal rate
C1MMP
Mitochondrial Membrane Potential
PGC_1a
The level of a protein which activates transcription in mitochondrial biogenesis
Source
Hill, Geoffrey et al. (2019), Data from: Plumage redness signals mitochondrial function in the house finch, Dryad, Dataset, https://doi.org/10.5061/dryad.f0kr74v
References
Hill, G.E., Hood, W.R., Ge, Z., Grinter, R., Greening, C., Johnson, J.D., Park, N.R., Taylor, H.A., Andreasen, V.A., Powers, M.J., Justyn, N.M., Parry, H.A., Kavazis, A.N. & Zhang, Y. (2019) Plumage redness signals mitochondrial function in the house finch. Proceedings of the Royal Sociaty B: Biological sciences, 286, 20191354.
Examples
data(finch_colours)
## maybe str(finch_colours)
Data on relative animal abundances in Gabon
Description
Data on the relative abundance (proportion of total observations) of a variety of animal groups as recorded on a network of transects in NE Gabon. A variety of land use variables are also recorded.
Usage
data("gabon_diversity")
Format
A data frame with 24 observations on the following 14 variables.
TransectID
Identifier for each transect
Distance
Distance from the nearest village in Km
HuntCat
Estimate of the intensity of hunting
LandUse
What the land is used for
NumHouseholds
Number of households in the nearest village
Veg_Rich
Vegetation species richness measured as the number of tree species present in a series of plots along the transect
Veg_Canopy
Canopy cover as the percentage of the sky blocked by canpoy in each plot, scored as 1 = 0-25, 2 = 26-50, 3 = 51-75, 4 = 76-100
Veg_Understory
Understory cover as the percentage of the ground covered, scored as for canopy cover
RA_Apes
Relative abundance of apes
RA_Birds
Relative abundance of birds
RA_Elephant
Relative abundance of elephants
RA_Monkeys
Relative abundance of monkeys
RA_Rodent
Relative abundance of rodents
RA_Ungulate
Relative abundance of ungulates
Source
Koerner, Sally E. et al. (2017), Data from: Vertebrate community composition and diversity declines along a defaunation gradient radiating from rural villages in Gabon, Dryad, Dataset, https://doi.org/10.5061/dryad.vs97g
References
Koerner, S.E., Poulsen, J.R., Blanchard, E.J., Okouyi, J. & Clark, C.J. (2017) Vertebrate community composition and diversity declines along a defaunation gradient radiating from rural villages in Gabon (ed S Cheyne). The Journal of applied ecology, 54, 805-814.
Examples
data(gabon_diversity)
## maybe str(gabon_diversity)
Weapon size and insulin-like signalling in the broad-horned flour beetle
Description
Data from an experiment testing how weapon size in insects is controlled by insulin-like peptides. The weapon in question is the enlarged mandibles of the broad-horned flour beetle Gnatocerus cornutus. Larvae were treated with RNAi to knock out a number of candidate ILPs and adult size (elytron width) and weapon size were measured once they had eclosed.
Usage
data("gnatocerus")
Format
A data frame with 144 observations on the following 3 variables.
treatment
The RNAi knockout treatment used. GFP = control, 1-5 ILP are the 5 insulin-like peptides targetted
EW
Eytron width in micrometres
ML
Mandible length in micrometres
Source
https://figshare.com/s/609486022a3df39169bf DOI:10.6084/m9.figshare.9734780
References
Okada, Y., Katsuki, M., Okamoto, N., Fujioka, H. & Okada, K. (2019) A specific type of insulin-like peptide regulates the conditional growth of a beetle weapon. PLoS biology, 17, e3000541.
Examples
data(gnatocerus)
str(gnatocerus)
Data on the relationship between immune system functioning and body height in healthy people.
Description
Data from a study relating innate (complement & lysozyme activity, neutrophil function) and adaptive (lymphocyte count, IgA, IgG and vaccine responce) to height. The subjects were a group of Polish volunteers.
Usage
data("height_immunity")
Format
A data frame with 193 observations on the following 16 variables.
sex
Subject sex
age
Age in years
body.height
Height in mm
BMI
Body Mass Index
body_fat
Percent body fat
testosterone
Free testosterone titre
complement
Complement activity
lysozyme
Lysozyme activity
phagocytic
Phagocytic uptake
ROS
Reactive Oxygen Species production
IgA
Immunoglobulin A levels
IgG
Immunoglobulin G levels
CD3
CD3 lymphocytes
CD19
CD19 lymphocytes
flu_post_vaccination_response
Antibody response to 'flu vaccination
tetanus_post_vaccination_response
Antibody response to tetanus vaccination
Source
Pawlowski, Boguslaw et al. (2017), Data from: Body height and immune efficacy: testing body stature as a signal of biological quality, Dryad, Dataset, https://doi.org/10.5061/dryad.2vn0d
References
Drulis-Kawa, Z. (2017) Body height and immune efficacy: testing body stature as a signal of biological quality. Proceedings. Biological sciences / The Royal Society, 284: 0171372
Examples
data(height_immunity)
str(height_immunity)
Tree diversity data
Description
Data on tree diversity from 24 forest plots in locations ranging from the tropics to northern Europe and the USA
Usage
data("latitude_diversity")
Format
A data frame with 24 observations on the following 12 variables.
Plot
Plot name
Country
Country
Latitude
Plot latitude
Longitude
Plot longitude
Plot_size_Ha
Size of the plot in Ha
Total_individuals
Total number of trees >1cm DBH
Species_richness
Total number of tree species
Rarified_sp_richness
Rarified species richness
Shannon_diversity
Shannon diversity index
Mean_local_richness
Mean richness per 20m quadrat
Mean_local_richness_rarified
Rarified richness per 20m quadrat
Mean_local_Shannon
Shannon diversity index per 20m quadrat
Source
Table S1 in https://science.sciencemag.org/content/sci/suppl/2017/06/28/356.6345.1389.DC1/aam5678_LaManna_SM.pdf
References
LaManna, J.A., Mangan, S.A., Alonso, A., Bourg, N.A., Brockelman, W.Y., Bunyavejchewin, S., Chang, L.-W., Chiang, J.-M., Chuyong, G.B., Clay, K., Condit, R., Cordell, S., Davies, S.J., Furniss, T.J., Giardina, C.P., Gunatilleke, I.A.U.N., Gunatilleke, C.V.S., He, F., Howe, R.W., Hubbell, S.P., Hsieh, C.-F., Inman-Narahari, F.M., Janik, D., Johnson, D.J., Kenfack, D., Korte, L., Kral, K., Larson, A.J., Lutz, J.A., McMahon, S.M., McShea, W.J., Memiaghe, H.R., Nathalang, A., Novotny, V., Ong, P.S., Orwig, D.A., Ostertag, R., Parker, G.G., Phillips, R.P., Sack, L., Sun, I.-F., Tello, J.S., Thomas, D.W., Turner, B.L., Vela Diaz, D.M., Vrska, T., Weiblen, G.D., Wolf, A., Yap, S. & Myers, J.A. (2017) Plant diversity increases with the strength of negative density dependence at the global scale. Science, 356, 1389-1392.
Examples
data(latitude_diversity)
str(latitude_diversity)
Data on maximum lifespan for 909 species of mammal and bird
Description
A dataset used to explore the ecological correlates of longevity in mammals and birds.
Usage
data("longevity")
Format
A data frame with 909 observations on the following 9 variables.
species
Species name
class
Class: mammalia = mammals, aves = birds
order
Order
maximum_lifespan_yr
Maximum lifespan in years
mass_g
Average body weight in g
volancy
Does it fly?
fossoriallity
Does it live in holes in the ground?
foraging_environment
Environment where it forages
daily_activity
When is it active?
Source
https://royalsocietypublishing.org/doi/suppl/10.1098/rspb.2014.0298
References
Healy, K., Guillerme, T., Finlay, S., Kane, A., Kelly, S.B.A., McClean, D., Kelly, D.J., Donohue, I., Jackson, A.L. & Cooper, N. (2014) Ecology and mode-of-life explain lifespan variation in birds and mammals. Proceedings. Biological sciences / The Royal Society, 281, 20140298.
Examples
data(longevity)
str(longevity)
Carbon exposure and lung immunity
Description
Data on two lung immunity measures (oxidative burst activity and phagocytic activity) from people exposed to chronic carbon particulates in their homes in Malawi
Usage
data("malawi_carbon")
Format
A data frame with 29 observations on the following 4 variables.
X
Row number
log_carbon
Log carbon particulate exposure
oxidative_burst
Lung oxidative burst activity
phagocytosis
Phagocytic activity in the lung
Source
Rylance, Jamie et al. (2016), Data from: Chronic household air pollution exposure is associated with impaired alveolar macrophage function in Malawian non-smokers, Dryad, Dataset, https://doi.org/10.5061/dryad.89nj3
References
Rylance, J., Chimpini, C., Semple, S., Russell, D.G., Jackson, M.J., Heyderman, R.S. & Gordon, S.B. (2015) Chronic Household Air Pollution Exposure Is Associated with Impaired Alveolar Macrophage Function in Malawian Non-Smokers. PloS one, 10, e0138762.
Examples
data(malawi_carbon)
str(malawi_carbon)
Data on maximum lifespan for 375 species of mammal
Description
A subset of a dataset used to explore the ecological correlates of longevity in mammals and birds, with only the mammals represented.
Usage
data("longevity")
Format
A data frame with 375 observations on the following 10 variables.
X
Row number
species
Species name
class
Class: mammalia = mammals, aves = birds
order
Order
maximum_lifespan_yr
Maximum lifespan in years
mass_g
Average body weight in g
volancy
Does it fly?
fossoriallity
Does it live in holes in the ground?
foraging_environment
Environment where it forages
daily_activity
When is it active?
Source
https://royalsocietypublishing.org/doi/suppl/10.1098/rspb.2014.0298
References
Healy, K., Guillerme, T., Finlay, S., Kane, A., Kelly, S.B.A., McClean, D., Kelly, D.J., Donohue, I., Jackson, A.L. & Cooper, N. (2014) Ecology and mode-of-life explain lifespan variation in birds and mammals. Proceedings. Biological sciences / The Royal Society, 281, 20140298.
Examples
data(mammal_longevity)
str(mammal_longevity)
MHC promiscuity and pathogen diversity data
Description
Data relating the breadth of the MHC response for the HLA-DRB1 MHC gene from a number of populations worldwide, and an estimate of the diversity of intracellular and extracellular pathogens that the population is exposed to
Usage
data("mhc")
Format
A data frame with 28 observations on the following 4 variables.
Population
Population identifier
Extracellular
Diversity of extracellular pathogens
Intracellular
Diversity of intracellular pathogens
Promiscuity_in_vitro
Estimated range of epitopes that the MHC can bind to
Source
https://doi.org/10.1371/journal.pbio.3000131.s017
References
Manczinger, M., Boross, G., Kemeny, L., Muller, V., Lenz, T.L., Papp, B. & Pal, C. (2019) Pathogen diversity drives the evolution of generalist MHC-II alleles in human populations. PLoS biology, 17, e3000131.
Examples
data(mhc)
str(mhc)
Locomotor activity in offspring of mice exposed to nicotine
Description
Data on the spontaneous locomotor activity of the F1 offspring of nicotine exposed or control males mated with unexposed females over a 12 hour period.
Usage
data("mouse_activity")
Format
A data frame with 54 observations on the following 3 variables.
Treatment
Parental treatment
Sex
Sex of the animal in question
SLA
Spontaneous locomotor activity (the count of all the recorded times an infra-red beam was broken during the 12-hour period)
Source
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.2006497
References
McCarthy, D.M., Morgan, T.J., Jr, Lowe, S.E., Williamson, M.J., Spencer, T.J., Biederman, J. & Bhide, P.G. (2018) Nicotine exposure of male mice produces behavioral impairment in multiple generations of descendants. PLoS biology, 16, e2006497.
Examples
data(mouse_activity)
str(mouse_activity)
Parrot lifespan data
Description
A dataset on maximum lifespan for 69 species of parrot. A subset of the larger longevity dataset with further information on family and subfamily added.
Usage
data("parrots2")
Format
A data frame with 69 observations on the following 11 variables.
species
Species name
class
Class: aves = birds
order
Order
family
Family
subfamily
Subfamily
maximum_lifespan_yr
Maximum lifespan in years
mass_g
Average body weight in g
volancy
Does it fly?
fossoriallity
Does it live in holes in the ground?
foraging_environment
Environment where it forages
daily_activity
When is it active?
Source
https://royalsocietypublishing.org/doi/suppl/10.1098/rspb.2014.0298
References
Healy, K., Guillerme, T., Finlay, S., Kane, A., Kelly, S.B.A., McClean, D., Kelly, D.J., Donohue, I., Jackson, A.L. & Cooper, N. (2014) Ecology and mode-of-life explain lifespan variation in birds and mammals. Proceedings. Biological sciences / The Royal Society, 281, 20140298.
Examples
data(longevity)
str(longevity)
Pinniped brain sizes and mating system
Description
A data set of body and brain mass for 33 species of pinniped (seals, sea lions and walruses) along with the type of mating system for that species.
Usage
data("pinniped")
Format
A data frame with 33 observations on the following 6 variables.
Species
Binomial species name
Male_brain_g
Brain mass for males in g
Female_brain_g
Brain mass for females in g
Male_mass_Kg
Body mass for males in Kg
Female_mass_Kg
Body mass for females in Kg
Mate_type
Mating system: mono = monogynous, poly = polygynous
Source
https://onlinelibrary.wiley.com/doi/10.1111/j.1420-9101.2012.02520.x
References
Fitzpatrick, J.L., Almbro, M., Gonzalez-Voyer, A., Hamada, S., Pennington, C., Scanlan, J. & Kolm, N. (2012) Sexual selection uncouples the evolution of brain and body size in pinnipeds. Journal of evolutionary biology, 25, 1321-1330.
Examples
data(pinniped)
str(pinniped)
Data on physical performance in Northern Quolls
Description
Data from a study of physical performance and morphology in Northern Quolls, Dasyurus hallucatus. These data were collected to test hypotheses about trade-offs between different types of physical activity. NB all physical measurements are standardised to a mean of 0 and an SD of 1.
Usage
data("quolls")
Format
A data frame with 63 observations on the following 23 variables.
name
Number of the individual
sex
Sex
mass
mass in g
bodylength
length in mm
taillength
tail length in mm
taildiameter
tail diamter in mm
headwidth
head width in mm
headlength
head length in mm
meanforearm
mean forearm length in mm
meanhindlimb
mean hind limb length in mm
meanfootlength
mean length of feet in mm
bodysize_PC1
PC1 of body size measurements
acceleration
Acceleration
sprint
sprint speed
jump
jump speed
grasp
grasping strength
bite
bite force
motorcontrol
A measure of motor control
maneuverability
manauverability
Max_O2_consump
Maximum oxygen consumption
Performance_PC1
Principal component 1 from a PCA of performance variables
Performance_PC2
Principal component 2 from a PCA of performance variables
Performance_PC3
Principal component 3 from a PCA of performance variables
Source
Charters, Jordan E. et al. (2019), Data from: Multidimensional analyses of physical performance reveal a size dependent trade-off between suites of traits, Dryad, Dataset, https://doi.org/10.5061/dryad.k0v636g
References
Charters, J.E., Heiniger, J., Clemente, C.J., Cameron, S.F., Amir Abdul Nasir, A.F., Niehaus, A.C. & Wilson, R.S. (2018) Multidimensional analyses of physical performance reveal a size-dependent trade-off between suites of traits. Functional ecology, 32, 1541-1553.
Examples
data(quolls)
str(quolls)
Data on how plant-soil feedback affects growth of ragwort
Description
Data from an experiment looking at how the removal of soil biota affects plant-soil feedback and hence the growth of ragwort, Jacobaea vulgaris.
Usage
data("ragwort")
Format
A data frame with 45 observations on the following 3 variables.
inoculum
Mesh size of the filter used to process water from soil used to inoculate otherwise sterile soil. Smaller mesh = less microbiota
root_mass
plant root mass in g (dry weight)
leaf_mass
plant leaf mass in g (dry weight)
Source
Wang, M., Ruan, W., Kostenko, O., Carvalho, S., Hannula, S.E., Mulder, P.P.J., Bu, F., van der Putten, W.H. & Bezemer, T.M. (2019) Removal of soil biota alters soil feedback effects on plant growth and defense chemistry. The New Phytologist, 221, 1478-1491.
Examples
data(ragwort)
str(ragwort)
Oxidative stress and group size in social weaver birds
Description
Data from an experiment looking at the oxidative stress brought on by reproduction in white-browed sparrow weavers Plocepasser mahali. The birds live in groups but only one pair reproduces. Either eggs were left alone or some eggs were removed to reduce the stress caused by reproduction. Two measures of oxidative stress were made.
Usage
data("weaver")
Format
A data frame with 34 observations on the following 6 variables.
Bird_ID
Individual bird identifier
Treatment
either control (eggs left) or some eggs removed to reduce the cost of reproduction
GrpSize
Size of the social group
SOD_final
Superoxide dismutase activity
MDA_final
Malondialdehyde concentration
mass_final
mass of the bird in g
Source
Cram, Dominic L.; Blount, Jonathan D.; Young, Andrew J. (2015), Data from: The oxidative costs of reproduction are group-size dependent in a wild cooperative breeder, Dryad, Dataset, https://doi.org/10.5061/dryad.j1305
References
Cram, D.L., Blount, J.D. & Young, A.J. (2015) The oxidative costs of reproduction are group-size dependent in a wild cooperative breeder. Proceedings. Biological sciences / The Royal Society, 282, 20152031.
Examples
data(weaver)
str(weaver)
Data comparing 186 countries originally published by the World Bank
Description
A variety of geographical, economic, environmental and social measures for 186 countried from the year 2014. Compiled from data published by the World Bank.
Usage
data("worldbank")
Format
A data frame with 186 observations on the following 25 variables.
Climate_region
a factor with levels
Temperate or Polar
Tropical
Income_binary
a factor with levels
High
Low
Country_Name
Name of the country
Country_Code
Three letter code for the country
Region
Geographic region
Income_group
Divides countries into one of four income groups
Population
Population size
Land_area
Area of the country in km^2
Forest_area
Area forested as percent of land area
Precipitation
Annual precipitation in mm
Population_density
People per km^2
Capital_lat
Latutude of the capital
GNP_per_Cap
Gross National Product per capita in US$
Population_growth
Annual population growth in percent
Cereal_yield
Cereal yield in Kg per Ha
Female_life_expectancy
Average life expectancy of women in years
Under_5_mortality
Deaths of children under 5 per 100000
Renewables.
Renewable energy consumption (percent of total final energy consumption)
CO2
CO2 production in tonnes per capita
PM25
PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
Women_in_parliament
Percent of seats held by women in national parliaments
GINI_index
Gini index of wealth inequality
Govt_spend_education
Government expenditure on education, total (percent of GDP)
Secondary_school_enrolment
School enrollment, secondary (percent net)
School_gender_parity
Index of gender parity for school enrollment
Source
https://data.worldbank.org/indicator
Examples
data(worldbank)
str(worldbank)
Data on bacterial adaptation to host gut environments.
Description
Data from a study on bacterial adaptation to host gut environments. These data are measures of the competitive ability a bacterium called Aeromonas veronii after either 4 or 18 passages through the gut of an otherwise germ-free larval zebrafish.
Usage
data("zebra_bacteria")
Format
A data frame with 208 observations on the following 4 variables.
Line
Which of three lines
Host
Wild type (WT) or an immunodeficient myd88- mutant
Passage
Number of passages
CI
Competitive index
Source
https://figshare.com/articles/dataset/Experimental_bacterial_adaptation_to_the_zebrafish_gut_reveals_a_primary_role_for_immigration/7445246
References
Robinson, C.D., Klein, H.S., Murphy, K.D., Parthasarathy, R., Guillemin, K. & Bohannan, B.J.M. (2018) Experimental bacterial adaptation to the zebrafish gut reveals a primary role for immigration. PLoS biology, 16, e2006893.
Examples
data(zebra_bacteria)
str(zebra_bacteria)