ANT 109 FINAL

Davina Rodriguez

Statewide Terrestrial Native Species Richness Summary

The Area of Conservation Emphasis Project (ACE) aims to summarize species richness in relation to spatial density existing within each Hexagon. These measurements are paramount for the preservation and conservation efforts for Native species within California.

There are 63,890 hexagons in the data set; Hexagon represent 2.5 square miles in which the species richness count is estimated

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bird <- read.csv("~/Desktop/FINAL ANT 109/species richness csv files/bird layer.csv", stringsAsFactors=TRUE)
mammal <- read.csv("~/Desktop/FINAL ANT 109/species richness csv files/mammal layer.csv", stringsAsFactors=TRUE)
reptile <- read.csv("~/Desktop/FINAL ANT 109/species richness csv files/reptile layer.csv", stringsAsFactors=TRUE)

m2<-merge(bird,mammal, by="Hex_ID")
m<-merge(m2,reptile, by="Hex_ID")
par(mfrow=c(1,3))

hist(m$NtvBird, main="(a). Native Bird Population", xlab="Native Species Richness Count", ylab= "Spatial Distribution (Hexagon)", col="#76b1e3",border="red")
hist(m$NtvMamm, main="(b). Native Mammal Population", xlab="Native Species Richness Count", ylab="Spatial Distribution (Hexagon)", col="#f08d8d", border="deeppink4")
hist(m$NtvRept, main="(c). Native Reptile Population", ylab="Spatial Distribution (Hexagon)", xlab="Native Species Richness Count", col="#80c995", border="#000f05")

The 3-Panel graph above represents the species richness of (a) Native Birds, (b) Native Mammals, (c) Native Reptiles per Hexagon in relation to spatial distribution

Native Species Richness and Spatial Distribution

par(mfrow=c(1,3))

hist(bird$NtvBird, main="(a). Native Mammal vs Native Bird Species",xlab="Number of Native Species", ylab= "Species Range Distribution (Hexagon)", col=rgb(0,0.439,0.71,0.5))
hist(mammal$NtvMamm, col=rgb(0.89,0.455,0.455,0.5), add=T)

hist(mammal$NtvMamm, xlab="Number of Native Species", main= "(b).Native Reptile vs Native Mammal", ylab="Species Range Distribution (Hexagon)", ylim=c(0,17000),col=rgb(0.89,0.455,0.455,0.5))  
hist(reptile$NtvRept,col=rgb(0.012,0.612,0.141,0.5),add=T)

     
hist(bird$NtvBird, main="(c). Native Reptile vs Native Bird", xlab="Number of Native Species",ylab="Species Range Distribution(Hexagon)",col=rgb(0,0.439,0.71,0.5))
hist(reptile$NtvRept, col=rgb(0.012,0.612,0.141,0.5), add=T)

legend("topright", legend=c("Mammal","Bird","Reptile"),
       col=c("#f08d8d","#76b1e3","#80c995"), cex=1.5, title="LEGEND", text.font=9, pch=17)

The histograms above, (a) Native Mammal and Native Bird, (b) Native Mammal and Native Reptile, (c) Native Bird and Native Reptile, all exhibit the abundance of species richness in relation to the spatial distribution measured using Hexagonal units. By analyzing the bar graphs, you can see the differences of frequency between species distribution, as well as the overlapping shared habitats between both species.

California Bird Species Richness

Population of Native Bird Species Throughout The State of California The map displays the native bird species richness distribution in the state of California.The color gradient exhibits the variation of bird species richness being more abundant along the coastal region, and decreasing the number of species richness towards southeastern, California state line