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Home>>State of the Desert Biome Table of Contents>>Table 9: Commercial Wild Plant "Forestry" Extraction in Sonora in cubic meter rolls, except for jojoba (in metric tons)
 

Table 13: Worsening Threats, Vulnerable Species and Areas and Areas Meriting Protection in the Subregions of the Sonoran Desert Bioregion

(* indicates a conservation priority)

 

Arizona Uplands

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Urbanization

Habitat fragmentation

Bankside vegetation clearing

Increased erosion

Native wash channelization

Invasion by exotic species

Groundwater depletion

Sonoran Purple Martins, owls, and other cavity nesters

Ferruginous Pygmy Owl,

Spadefoots and other toads

Organpipe shovelnose snake

Western diamondback rattlesnake

Tucson shovelnose snake

Sidewinder

Long tailed brush lizard

Ironwood

Hohokam & Delameter's agaves

Black grama and Plains lovegrass

Virtually all of the native perennial grasses

Tucson basin (incl. south side of Tortolita) Mountains, Rincon Valley Tanque Verde Valley, Oro Valley)

Salt River basin

Verde Valley

Tonto basin

Gila basin

Avra Valley

Bosqueform mesquite forests

Tonto Creek

Baboquivari Canyon

Verde Valley crucifixion thorncovered ridges

 

 

Lower Colorado River Valley

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Urbanization especially in the Yuma, Phoenix, & coastal areas

Land clearing for agriculture

Habitat fragmentation

Overgrazing by livestock

Water manipulation

Exotic species mustards

Potential for fire due to exotic

Tourism

Offroad vehicles, especially in dunes

Campertrailers on BLM land

Ironwood harvesting

Poaching

Mining in Sonora

Increased salinity and selenium levels

Megadumps in the desert

Human occupancy

Exaggerated carrying capacity through import of resources

 

Sonoran pronghom antelope

Flattailed homed lizard

Saltbush/wolfberry flats

Palo verde nurse plant associates

Ironwood nurse plant associates

Saguaro

Both nightblooming cereus cacti

tamarisks, etc

Barrel cactus

herbs

Sonoran panicgrass

Ocotillo

Cardon

Acuna cactus

Senita

Cottonwood / willow forest

Mesquite

Sandfood

Many decomposers and pollinators

Davis dam south to U.S Mexico border

Yuma Mesa

White Tank Mountain area

Lower Colorado River wetlands

Sierra Estrella

Santans Mountains

Sacaton Mountains

Puerto Penasco

Mexicali Valley

Tinajas Altas

Sierra San Felipe and Matomi

Quitovac*

Pozo Nuevo*

Tinajas Altas*

Laguna Percebu*

Punta Estrella*

Sierra de Juarez*

Laguna Salada*

Algodones Dunes*

Sierra Estrella

White Tanks, Yuma Proving Ground

Wellton Slough / Tacna Marsh

Alto Golfo

Sand dunes near Laguna Prieta

Sand plains

Granitic Ranges

NE Puerto Penasco

 

 

 

Plains of Sonora

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Land clearing

Mine expansion

Buffelgrass planting

Urbanization

 

 

All hardwood trees but especially ironwood

Two nightblooming cacti

Northernmost palm populations

Endemic grasses

Blue yuccas

Hohokam agaves

 

CananeaSan Pedro*

Sierra del Tigre*

Sierra San Javier

Sierra Mazatan

 

 

 

Central Gulf Coast of Sonora

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Urbanization

Tourism

Recreation

Resort building

Clearing for agriculture (especially south of Kino Bay)

Increased cattle grazing in unsuitable areas

Exotic species especially buffelgrass

Ironwood / fuelwood cutting

 

Ospreys

Chuckwallas

Ironwood

Desert tortoises

Boojums

Endemic cotton

Figs

 

Coastline north of San Carlos

 

Sierra de la Libertad*

Sierra Seri*

Laguna de la Cruz*

Sierra del Viejo*

Bahia de San Jorge*

Cajon del Diablo*

Lobos region and areas between San Carlos and Ensenada (e.g. near Pto. Lobos)

Chica Venetia

Desemboque San Carlos coastline and interior

Sierra Libre

 

 

Viscaino/Magdalena Plain

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Groundwater pumping

Agriculture in the south

Illegal collecting

Poorly managed use of yuccas

 

 

Pronghorn Antelope

Boojums

Palms

Yuccas

Cardons

Endemic brittlebush

 

 

Sierra San Francisco

Viscaino plain

Areas of Bahia de los Angeles and El Rosario

Guerrero NegroVizcalnoSan Ignacio

 

Sierra El Mechudo*

Planicies de Magdalena

Sierra La Giganta*

Bahia de Concepcion*

Valle de los Cirios*

Vizcaino Guerrero area*

Sierra Guadalupe

 

 

Foothills of Sonora Thornscrub/ Coastal Thornscrub

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Livestock overgrazing

Clearing for pasture

Clearing for agriculture

Exotic species especially buffelgrass

Fuelwood cutting; charcoal manufacturing

Ornamental plant collecting

 

Brasilwood

Ironwood

Mesquite

Endemic grasses

Barrel Cacti

 

Rio Yaqui to south of the Rio Fuerte

 

Sierra Bacatete*

Canon de Chinipas*

San Javier  Tepoca  El Palmal*

Sahuaripa  Bacanora*

Mazatan*

Soyopa*

Cruz del Diablo*

Mazocahui  Puerta del Sol*

Las Bocae

Sierra Libre

NavojoaAgiabambo Pitahaya forest

Sierra de Barobampo (Sinaloa)

 

 

Cape Region Thornscrub

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

 

  • All endemics
  • Sierra la Laguna*

 

 

 

Semidesert Grassland

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Habitat fragmentation due to ranch subdivision

Livestock grazing

Recreation

 

Pronghorn antelope

Plains leopard frog

Tarahumara frog

Masked bobwhite quail

Yellow mud turtle

Massasauga

Black grama

Tobosa

Pima pineapple cactus

Sulphur Springs Valley

Tumacacori Peak / Rock Corral Canyon*

Oracle Junction area

EE Ranch (near McNeal, AZ) and SonoitaElgin grasslands

Sierra Vista area

Altar Valley

Santa Cruz Valley

Tumacacori Peak / Rock Corral Canyon*

tobosa grass stands to south

Babocomad Ranch and adjacent

lands

Santa Rita Experimental Range

Greater Altar ValleyEmpire Ranch

San Rafael Valley

 

 

Riparian Deciduous Forests

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Urbanization

Livestock grazing

Groundwater mining, water impoundment

Exotic fish, frogs, and crayfish

Tamarisk

Bermuda grass

Africanized bees

Recreational vehicle use

Recreation development

Aberrs Towhee

Cactus Ferruginous Pygmy Owl

Elf Owl

Zonetailed hawk

Blackcapped gratcatcher

Yellowbilled cuckoo

Buff collared nightjar

Native fishes and all native ranid frogs

Large canopy mesquites

Fremont cottonwood

Doubleleaved cottonwood

Middle San Pedro (Hereford to Benson)

Peck Canyon [Atascosa Mtns.]

California Gulch [Pajarito Mtns.]

Tucson basin

Chino Canyon

Brown Canyon

Baja California

Phoenix metropolitan area and adjacent communities

 

Cienagas south of Nogales north of Imuris*

Imuris gallery forests*

Tubac gallery forests*

Some major rivers in Sonora

Verde River

Hassayampa, expanded protection

Lower San Pedro (Pomerene to Winkelman)

Gila River

Colorado River

Upper Tanque Verde Wash

Pockets along middle Rillito in Tucson

Chino Canyon of Santa Ritas Mountains

California Gulch of Atascosa Mountains

Santa Cruz River  Nogales to Rio Rico

Rio Fuerte

 

 

Palm Oasis Fores/Woodland

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Buffelgrass / Fires

Development / habitat destruction

 

Sabal and Brahea palms

Blue yuccas (hesperaloe)

Washingtonia palms

 

Canon Guadalupe, BCN

Canon Tajo, BCN

Ures - Soyopa canyons

Nacapule Canyon

San Carlos area

Magdalena Palm Canyon*

Nacapule Canyon*

Sierra San Pedro Martir

 

 

Riparian Scrubland/Mesquite Bosque

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Groundwater mining

Exotic grasses

Fuelwood cutting

Land clearing

Subsidence

Merriam's pocket mouse

Mesquite

San Xavier / Pla. de Agua

Cascabel

Black Mountain / Pla. de Agua

 

 

Maritime Strand

 

Threats that are becoming more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

 

Coastal development

Sandfood

Beaches north of Guaymas

Beach nesting birds

Everything between Kino and Guaymas

Salinas

El Golfo de Santa Clara

Bahia de Los Angeles

 

 

Mangrove Scrub

Threats that are becoming

more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Desalting of river estuaries (Rios Mayo and Yaqui)

Marina / harbor development

Red, black and white mangrove

Invertebrate nursery grounds

Migratory birds

Estero Soldado

Bahia de la Cruz

Estero Soldado'

Punta Sargento

Punta Santa Rosa

Estero Lobos

Bahia de la Cruz

Rio Mayo delta

Rio Yaqui delta

Topolohampo Lagoon System (Sinaloa)

 

 

Islands

Threats that are becoming

more severe

Vulnerable Species

Vulnerable Areas

Areas that Merit Protection

Exotic species

Recreation

Fishing villages

Mining

Angel de la Guardia pocket mice

San Esteban chuckwalla

Desert tortoise

San Esteban Agave

All other endemics

Beaches on San Esteban

Alcatraz (Kino Bay)

Isla San Marcos*

Isla Alcatraz*

All islands' tourist stops

 

 

 

   
       


Last Updated: December 9, 2002
Page URL: http://alic.arid.arizona.edu/sonoran/documents/nabhan/db_table13.html
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