search for: riparian

Displaying 5 results from an estimated 5 matches for "riparian".

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2003 Jul 22
1
Making a group membership matrix
...Lodgepole Pine Low Sage Mixed Chaparral 60332 31 1043 Montane Chaparral Montane Hardwood Montane Hardwood-Conifer 6648 326 0 Montane Riparian Orchard and Vineyard Perennial Grassland 180 0 17 Pinyon-Juniper Ponderosa Pine Red Fir 968 708 66263 Riverine Sagebrush...
2013 Jan 15
0
temporal and spatial correlation structures in GAMM
...model the probability that a forest carnivore might have in be located in a tree hollow (1) (the main resting site selected) rather than elsewhere (0) (other resting site types, dens, nests, etc.). The model should be related with several variables such as for instance:   SHRUB_CV – shrub cover; D_RIPARIAN – distance to riparian habitats FOREST_PP – forest habitat (tree availability) proportion in each sampling unit (1 km buffer around each resting site) D_RIP_KM – distance to the nearest riparian habitat.. Day – day of the year…   My data consist of a daily resting site monitoring of 21 animals (dur...
2006 Jun 05
0
CCA Plot
I am a beginner with R and have managed to use vegan to run a CCA on my data. I am evaluating the habitat relationships of select species in riparian areas around creeks before and after logging across three sampling intervals (pre-logging, two-years post-logging,. and 10 years post-logging). I sampled from 18 sites of 3 treatments (n = 6 sites for each treatment). When I plot my pre-treatment data, I am plotting data from all 18 sites and...
2008 Mar 28
0
Estimating variance components of groups of covariates within regression model
I am interested in estimating the variance components from different groups of variables in a linear regression. For example, I want to model dependent variable ?Y? based on six covariates as follows: (these are land use types measured at three scales for each Y, "Local", "Riparian", and "Catchment" - these are not nested as there is a unique area for each Y - and Y is a measure of stream health) L_F=c(3.36,-0.5,-0.91,1.55,-0.02,-0.91,-0.91,-0.91,-0.07,1.69) L_W =c(-0.3,-0.3,-0.3,4.55,3.2,-0.3,-0.3,-0.3,8.55,-0.3) R_A = c(-1.4,-1.06,-1.43,-1.72,-0.78,-1.72,-...
2001 Feb 16
12
canonical correspondence analysis
Is there an R function that does canonical correspondence analysis. Can it be done using the VR function corresp()? If not, how hard it be to write R code to do it? I am a population biologist with long but patchy programming experience in C, Smalltalk, Java and other languages. Thanks, Patrick Foley patfoley at csus.edu