| Title: | Data Analysis in Ecology |
|---|---|
| Description: | Data sets used in Cayuela and De la Cruz (2022, ISBN:978-84-8476-833-3). |
| Authors: | Luis Cayuela [aut], Marcelino De la Cruz [aut, cre] |
| Maintainer: | Marcelino De la Cruz <[email protected]> |
| License: | GPL (>= 2) |
| Version: | 1.5 |
| Built: | 2024-10-31 22:17:00 UTC |
| Source: | CRAN |
Germination frequency of Ailanthus altissima seeds in a factorial experiment with varying levels of light and water.
data("ailanto")data("ailanto")
A data frame with 48 observations on the following 4 variables.
SemillasNumber of seeds in each tray.
LuzPercentage of incident light.
AguaPercentage of soil water.
GerminacionNumber of seeds germinating.
An experiment with forty-eight trays, with 40 pots each, and one seed per pot, was set up in a factorized design, with four levels of incident light and three levels of humidity. Numbers of germinating seeds by tray were recorded.
González-Muñoz, N., Castro-Díez, P., and Fierro-Brunnenmeister, N. 2011. Establishment success of coexisting native and exotic trees under an experimental gradient of irradiance and soil moisture. Environmental Management 48: 764-773.
data(ailanto) str(ailanto)data(ailanto) str(ailanto)
Data about size and reproductive status in randomly collected individuals of three species of Codium seaweeds in the Cantabrian coast.
data("algas")data("algas")
A data frame with 359 observations on the following 3 variables.
SpSpecies of Codium. A factor with levels Fra (C. fragile), Tom (C. tomentosum) and Ver(C. vermilara).
LongLength of each individual.
EstadoPresence (1) or absence (0) of reproductive structures.
Rojo, I., Olabarria, C., Santamaria, M., Provan, J., Gallardo, T. and Viejo, R.M. 2014. Coexistence of congeneric native and invasive species: The case of the green algae Codium spp. in northwestern Spain. Marine Environmental Research 101: 135-144.
data(algas) str(algas)data(algas) str(algas)
Counts of Araucaria araucana (Molina) K. Koch seedlings in 26 plots (0.2 ha each) to investigate the effect of management (small stakeholders vs. forestry companies) and cattle pressure (measured indirectly by the number of dungs in each plot).
data("ara")data("ara")
A data frame with 26 observations on the following 3 variables.
seedlingsNumber of seedlings in each plot.
dungsNumber of cattle dungs in each plot.
propertyOwner of the terrain where each plot was set up. A factor with 2 levels, Campesino (small stakeholder) and Empresa Forestal (forestry company).
Zamorano-Elgueta, C., Cayuela, L., González-Espinosa, C., Lara, A. and Parra-Vázquez, M.R. 2012. Impacts of cattle on the South American temperate forests: Challenges for the conservation of the endangered monkey puzzle tree (Araucaria araucana) in Chile. Biological Conservation 152: 110-118.
data(ara) str(ara)data(ara) str(ara)
Data about competition between seaweeds and sessile benthic invertebrates in three Californian reefs. Data were collected in sixteen 40 m x 2 m transects during 8 years. This dataset includes the "non-urchin barren" (transects where the density of sea urchins was low, which includes 4 transects x 7 yr + 6 transects x 6 yr +1 transect x 5 yr).
data("arrecifes")data("arrecifes")
A data frame with 69 observations on the following 3 variables.
sitioLocation of the transect. A factor with three levels: Carpinteria, Mohawk and Naples.
algasPercentage cover of seaweds.
invertebradosPercentage cover of sessile invertebrates.
These data have been digitized from Figure 3a of Arkema et al. 2009.
Arkema, K,K., Reed, D.C., and Schroether, S.C. 2009. Direct and indirect effects of giant kelp determine benthic community structure and dynamics. Ecology 90: 3126-3137.
data(arrecifes) str(arrecifes)data(arrecifes) str(arrecifes)
Some measurements of body length and genitalia size of 156 individuals of Chalcosoma atlas (Linnaeus, 1758) in four localities in SW Asia.
data("chalco")data("chalco")
A data frame with 156 observations on the following 3 variables.
LocalidadLocality. A factor with levels C. Malasia, E. Tailandia, Nias, and S. Sumatra.
Long_cuerpoBody size (length) in mm.
Long_genitaliaGenitalia size (length) in mm.
Kawano, K. 2002. Character displacement in giant rhinoceros beetles. The American Naturalist 159(3): 255-271.
data(chalco) str(chalco)data(chalco) str(chalco)
Average cover of the lichen Cladonia rangiferina (L.) Weber ex F.H.Wigg. in the understory of pine forests in 24 locations in Finland, plus some measurements of soil properties in the same localities.
data("cladonia")data("cladonia")
A data frame with 24 observations on the average cover of Cladonia rangiferina (cladrang), the estimated cover of bare soil (Baresoil), the thickness of the humus layer (Humdepth) and measurements of chemical soil characteristics (obvious names).
Väre, H., Ohtonen, R. and Oksanen, J. (1995) Effects of reindeer grazing on understorey vegetation in dry Pinus sylvestris forests. Journal of Vegetation Science 6: 523-530.
These data are compiled form the varespec and varechem datasets in package vegan.
data(cladonia) str(cladonia)data(cladonia) str(cladonia)
Data about defoliation in 76 stands of Pinus spp. forests in Sierra de los Filabres, Almeria, Spain.
data("defo")data("defo")
A data frame with 76 observations on the following 12 variables.
xUTM x-coordinate of the stand.
yUTM y-coordinate of the stand.
EspecieDominant species of Pinus. A factor with two levels: Pinus nigra and Pinus sylvestris.
DefoliacionPercentage of the stand affected by defoliation.
Area_basimetricaBasal area of the stand.
Altura_mediaAverage height of pines in the stand.
Densidad_pinosDensity of pine trees in the stand.
ElevacionElevation.
PendienteAverage slope.
OrientacionSlope orientation.
InsolacionAmount of solar insolation.
Potencial_hidricoWater potential.
data(defo) str(defo)data(defo) str(defo)
Richness of forest trees and average productivity for the 2001-2007 period estimated from MODIS images (NDVI, Normalized Difference Vegetation Index for 250 x 250 m pixels) in 96 plots of 0.1 ha in the dry forests of Chiapas (Mexico).
data("dry")data("dry")
A data frame with 96 observations on the following 2 variables.
richnessNumber of tree species per plot.
ndviAverage productivity.
NDVI values range between 0 an 1, with higher values indicating higher productiviy.
data(dry) str(dry)data(dry) str(dry)
Number of eggs laid by female fireflies (Photinus ignitus (Fall, 1927)) after mating either with just one male or sequentially with three males.
data("firefly")data("firefly")
A data frame with 40 observations on the following 3 variables.
weightWeight of each female firefly.
eggsNumber of eggs produced after mating.
matingType of experimental mating: either single male or triple mating with tree different males.
Rooney, J. and Lewis, S. M. 2002 Fitness advantage from nuptial gifts in female fireflies. Ecological Entomology 27: 373-377.
data(firefly) str(firefly)data(firefly) str(firefly)
Observations of the presence of a plant disease and of a certain species of insect in 14 plants.
data("insecto")data("insecto")
A data frame with 14 observations on the following 2 variables.
enfermedadPresence of the plant disease. A factor with levels ausente (absent) and presente (present).
insectoPresence of the insect species. A factor with levels ausente (absent) and presente (present).
Zar, J. H. 2010. Biostatistical Analysis. 5th ed. Prentice Hall.
data(insecto) str(insecto)data(insecto) str(insecto)
Percentage cover of foliose and fruticulose epiphytic lichen species in 20 cm x 20 cm quadrats placed on the trunk of several trees along three transects in a pine forest in Sierra de Guadarrama (Madrid, Spain).
data("liquenes")data("liquenes")
A data frame with 608 observations on the following 33 variables.
Grupo. Transect identifier.
Arbol. Tree identifier within each transect.
DAP. DBH, i.e., diameter (cm) at breast height of the phorophyte tree.
Especie. Species of the phorophyte tree. A factor with levels P (Pinus sylvestris) and R (Quercus pyrenaica).
Distancia. Distance (m) from the tree to a road on the border of the forest.
Sitio. Location on the trunk. A factor with levels B (base of the tree) or P (at breast height).
Orientacion. Orientation of the quadrat over the tree trunk. A factor with levels N (facing North) or S (facing South).
Musgos. Percentage cover of mosses.
Crustaceos. Percentage cover of crustaceous lichens.
Agrietacion. A measure (percentage) of bark rugosity.
Cetraria.chlorophylla to Sp.1. Percentage cover of each recorded species of foliose or fruticulose lichen.
Riqueza. Richness of fruticulose and foliose lichen species per quadrat.
Data collected by students of Ecology of Rey Juan Carlos University in September 2016.
data(liquenes) str(liquenes)data(liquenes) str(liquenes)
Measurements of head width and elytra length of several individuals of Lucanus cervus (Linnaeus, 1758) recorded in several localities in Northern Spain.
data("Lucanus")data("Lucanus")
A data frame with 265 observations on the following 4 variables.
KBHead size (mm).
ELElytra length (mm).
SEXOSex, a factor with levels hembra (female) or macho (male).
PROVINCIASpanish province where each individual was collected. Either Asturias, Cantabria or Otras (other).
data(Lucanus) str(Lucanus)data(Lucanus) str(Lucanus)
Monitoring of several cohorts of seedlings of Helianthemum squamatum (L.) Dum. Cours., from emergence to the end of sumer drought.
data("plantulas0")data("plantulas0")
A data frame with 691 observations on the following 6 variables.
CensoCohort, i.e., when the seedling was first censused. A factor with levels abril (April), junio (June), marzo (March), mayo (May).
MSETFate of each seedling at September census. A factor with levels herbivoria (died by herbivory), sequia (died by drought), sobrevive (survived).
HjunNumber of leaves in the June census.
TjunHeight of the seedling (cm) in the June census.
NN05Number of neighbour seedlings within a circle with a radius of 5 cm around each seedling.
NN10Number of neighbour seedlings within a circle with a radius of 10 cm around each seedling.
De la Cruz, M., Romao, R.L., Escudero, A. and Maestre, F.T. 2008. Where do seedlings go? A spatio-temporal analysis of seedling mortality in a semi-arid gypsophyte. Ecography 31: 720-730 .
data(plantulas0) str(plantulas0)data(plantulas0) str(plantulas0)
Richness of benthic species in 45 sampling stations along the coastline of The Netherlands, measured by two researches of the the RIKZ (Rijksinstituut voor Kust en Zee), i.e., the Dutch Institute for Coastal and Marine Management.
data("RIKZ")data("RIKZ")
A data frame with the abundance (number of individuals) of 75 benthic macrofauna species (columns 2 -C1- to 76 -I5-) and several environmental meassurements recorded in each sampling station (Sample), i.e., the five sampling stations within each of the nine beaches considered (Beach). The most important is NAP, i.e., Normal Amsterdams Peil (NAP), which measures the height of the sampling station (in m) in relation to the average sea level. Other variables are related to the nature of the sandy sediment, i.e., average grain size (grainsize), grain sorting (sorting1), penetrability (penetrability), carbonate content (chalk), or to each beach, i.e., slope (angle2), salinity (salinity) and average temperature (temperature).
Janssen, G. and Mulder, S.. 2005. Zonation of macrofauna across sandy beaches and surf zones along the Dutch coast. Oceanologia 47(2): 265-282.
data(RIKZ) str(RIKZ)data(RIKZ) str(RIKZ)