Amaranthaceae

Amaranthus sp.

AH

N.A.

-

-

+

+

-

-

-

Asclepiadaceae

Asclepias fascicularis

PH

N

-

-

-

-

-

+ ⁷

-

Asteraceae

Carthamus tinctorius

AH

I

+

-

-

+

-

-

-

Centaurea solstitialis

AH

I

+

-

+

+

-

-

-

Conyza canadensis

AH

N

+

+

-

+

-

-

-

Helianthus annuus

AH

N

+

+

-

+

-

-

-

Hemizonia pungens *

AH

N

-

-

-

-

-

-

+

Isocoma acradenia *

S

N

-

-

-

-

-

+

-

Lactuca serriola

AH

I

+

+

-

+

+

+

+

Lasthenia californica *

AH

N

-

-

-

-

-

+

+

Microseris sp.

AH (?)

N

-

-

+

-

-

-

-

Picris echioides

A/PH

I

-

-

-

-

-

-

-

Senecio vulgaris

AH

I

-

-

+

+

+

+

-

Sonchus asper

AH

I

+

-

-

+

+

-

-

Sonchus oleraceus

AH

I

+

+

+

+

+

+

+

Xanthium strumarium

AH

N

-

-

+

+

-

-

-

Boraginaceae

Amsinckia menziesii

AH

N

-

-

-

-

-

-

+

Heliotropium curassavicum *

PH

N

-

-

-

+

-

-

-

Brassicaceae

Brassica nigra

AH

I

-

-

-

+

+

+

+

Capsella bursa-pastoris

AH

I

-

+

-

+

+

+

+

Hirschfeldia incana

PH

I

+

-

+

+

-

-

-

Raphanus sativus

A/BH

I

+

-

-

+

-

-

-

Sisymbrium irio

AH

I

-

-

-

+

+

+

+

Chenopodiaceae

Atriplex argentea

AH

N

+

+

-

-

+

+

+

Atriplex patula

AH

N

-

-

-

-

-

-

-

Atriplex polycarpa *

S

N

-

-

-

-

-

-

-

Beta vulgaris

PH

I

-

-

-

+

+

+

+

Chenopodium album

AH

I

-

-

+

+

+

+

-

Monolepis nuttalliana

AH

N

-

-

-

-

-

+

-

Chenopodiaceae

Salsola tragus

AH

I

+

-

-

+

-

-

+

Suaeda moquinii *

PH

N

-

-

-

-

-

+

+

Convolvulaceae

Calystegia sp.

V (?)

N

-

-

+

-

-

-

-

Convolvulus arvensis

PH/V

I

-

-

-

+

+

+

-

Fabaceae

Medicago sativa

PH

I

-

-

-

-

-

-

+

Melilotus indica

AH

I

+

+

+

+

+

+

+

Frankeniaceae

Frankenia salina *

PH

N

-

-

-

-

-

+

-

Geraniaceae

Erodium cicutarium

AH

I

-

-

-

+

+

+

+

Hydrophyllaceae

Phacelia distans

AH

N

-

-

-

+

+

+

+

Juncaceae

Juncus sp.

N.A.

N.A.

-

-

-

+

-

-

-

Malvaceae

Eremalche parryi

AH

N

-

-

-

+

+

+ ⁷

-

Malva parviflora

AH

I

-

-

-

-

+

+

-

Malvella leprosa

PH

N

-

-

+

+

-

+

-

Onagraceae

Epilobium brachycarpum

AH

N

+

-

-

+

-

-

-

Poaceae

Avena fatua

AH

I

+

-

+

+

+

+

+

Bromus carinatus *

AH

N

-

-

-

-

-

+

+

Bromus diandrus

AH

I

-

-

-

-

-

-

+

Bromus hordeaceus

AH

I

+

-

-

+

-

-

-

Bromus madritensis

AH

I

+

-

+

+

+

+

+

Crypsis schoenoides

AH

I

-

-

+

+

-

-

-

Cynodon dactylon

PH

I

-

-

-

-

-

-

-

Distichlis spicata

PH

N

+

-

-

+

-

-

-

Hordeum depressum

AH

N

-

-

-

+

+

+

-

Hordeum marinum

AH

I

+

-

+

+

-

-

-

Hordeum murinum

AH

I

+

-

-

+

+

+

+

Hordeum vulgare

AH

C

-

-

-

+

+

+

+

Leptochloa uninervia

AH

N

-

-

+

+

-

-

-

Leymus triticoides *

PH

N

-

-

-

-

-

-

+

Phalaris minor

AH

I

+

+

+

+

-

+

+ ⁸

Polypogon monspeliensis

AH

I

-

+

-

+

-

-

-

Vulpia microstachys *

AH

N

-

-

-

-

-

+

+

Polemoniaceae

Gilia tricolor

AH

N

-

-

-

-

-

-

-

Polygonaceae

Polygonum sp.

N.A.

N.A.

-

-

-

-

-

-

-

Rumex crispus

PH

I

+

-

+

+

-

-

-

Sapotaceae

Bassia hyssopifolia

AH

I

-

-

-

-

-

-

+

Solanaceae

Physalis lanceifolia

AH

I

+

-

+

+

-

-

-

Solanum americanum

A/PH

N

-

-

-

-

-

+

-

Tamaricaceae

Tamarix ramosissima

T or S

I

-

-

-

+

-

-

-

AMME

N

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

0.13

-

-

-

-

ATAR

N

0.19

-

18.90

0.15

0.02

1.54

-

3.23

6.29

-

0.13

-

0.25

0.63

-

-

0.02

3.56

4.29

0.02

AVFA

I

0.13

2.00

-

-

-

-

1.69

4.46

-

0.13

0.19

3.19

6.19

-

1.25

-

14.10

21.04

-

-

BAHY

I

-

-

-

-

-

-

-

-

-

-

-

-

-

0.02

-

-

-

-

-

-

BEVU

I

7.15

-

-

-

0.13

-

-

-

-

-

0.02

-

-

-

-

-

-

-

-

-

BRCA*

N

-

-

0.02

-

-

-

-

-

0.13

-

-

-

-

-

-

-

-

-

-

-

BRDI

I

0.02

-

-

-

-

-

-

0.13

-

-

-

-

-

-

-

-

-

-

-

-

BRMA

I

11.65

-

-

-

-

25.31

0.02

0.02

-

-

18.46

-

-

3.23

-

66.67

-

-

-

0.25

BRNI

I

0.90

-

-

-

16.19

0.79

-

0.02

3.54

4.94

0.02

-

-

-

38.23

0.58

0.71

-

0.13

-

CABU

I

-

2.63

-

0.13

0.21

-

8.19

0.50

-

0.13

-

1.35

-

-

0.25

-

1.15

4.31

-

0.04

ERCI

I

1.19

-

-

-

-

0.33

-

-

-

-

0.52

-

-

-

-

1.00

-

-

-

-

HEPU*

N

-

-

-

-

-

-

-

0.02

-

-

-

-

-

-

-

-

-

-

-

-

HOMU

I

5.13

-

-

-

0.13

21.73

-

0.02

-

0.75

33.75

-

-

2.56

3.54

1.04

-

-

-

0.63

HOVU

C

0.56

16.31

1.94

0.02

0.15

0.19

13.58

4.48

0.81

-

0.19

6.46

6.19

0.15

-

0.56

17.60

1.31

0.15

-

LACA*

N

-

0.15

0.02

-

-

0.06

0.21

0.04

0.04

-

-

-

-

-

-

-

-

-

-

-

LASE

I

0.04

0.56

1.46

1.02

-

0.04

0.17

0.90

0.21

-

0.06

0.27

1.40

-

-

-

1.83

2.19

4.63

-

LETR

N

0.02

0.02

-

-

-

-

0.06

0.15

-

-

-

-

-

-

-

-

-

-

-

-

MEIN

I

3.94

0.15

0.69

-

-

5.88

0.02

2.98

-

-

7.17

0.02

6.44

-

-

9.13

1.52

2.77

-

-

MESA

I

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

0.02

-

PHSP

NA

0.08

-

-

-

-

0.02

-

-

-

-

0.13

-

-

-

-

-

0.02

-

-

0.13

PHDI

N

1.52

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

SATR

I

-

-

4.33

0.65

-

-

-

-

-

-

-

-

0.75

-

-

0.13

-

1.71

-

-

SIIR

I

-

9.04

7.50

1.44

19.42

-

11.92

6.35

13.96

19.06

-

15.77

0.88

16.54

27.69

-

4.94

5.85

9.08

53.33

SOOL

I

0.10

0.63

1.92

0.13

-

0.02

0.23

1.65

-

-

0.02

0.02

0.13

-

-

0.02

0.15

1.00

1.31

-

SUMO*

N

-

0.63

0.02

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

VUMI*

N

-

0.94

-

-

-

0.02

0.71

0.13

-

-

-

-

-

-

-

-

-

-

-

-

1. Taxon Code: AMME, Amsinckia menziesii; ATAR, Atriplex argentea; AVFA, Avena fatua; BAHY, Bassia hyssopifolia; BEVU, Beta vulgaris; BRCA, Bromus carinatus; BRDI, Bromus diandrus; BRMA, Bromus madritensis subsp. rubens; BRNI, Brassica nigra; CABU, Capsella bursa-pastoris; ERCI, Erodium cicutarium; HEPU, Hemizonia pungens; HOMU, Hordeum murinum; HOVU, Hordeum vulgaris (Barley); LACA, Lasthenia californica; LASE, Lactuca serriola; LETR, Leymus triticoides; MEIN, Melilotus indica; MESA, Medicago sativa ; PHSP, Phalaris sp.; PHDI, Phacelia distans; SATR, Salsola tragus; SIIR, Sisymbrium irio; SOOL, Sonchus oleraceus; SUMO, Suaeda moquinii; VUMI, Vulpia microstachys.
2. Origin: N, Native; I, Introduced; C, Cultivar (Barley); NA, not known.
3. 3. Species Richness: number of species observed in a particular plot.

Amsinckia menziesii

Native

1

1

Atriplex argentea

Native

14

50

Avena fatua

Introduced

11

82

Bassia hyssopifolia

Introduced

1

1

Beta vulgaris

Introduced

3

13

Bromus carinatus *

Native

2

2

Bromus diandrus

Introduced

2

2

Bromus madritensis subsp. rubens

Introduced

8

94

Brassica nigra

Introduced

11

72

Capsella bursa-pastoris

Introduced

11

70

Erodium cicutarium

Introduced

4

28

Hemizonia pungens *

Native

1

1

Hordeum murinum

Introduced

10

82

Hordeum vulgare (Barley)

Introduced

17

159

Lasthenia californica *

Native

6

15

Lactuca serriola

Introduced

14

76

Leymus triticoides *

Native

4

7

Melilotus indica

Introduced

12

98

Medicago sativa

Introduced

1

1

Phalaris sp.

Introduced

5

13

Phacelia distans

Native

1

5

Salsola tragus

Introduced

5

13

Sisymbrium irio

Introduced

16

264

Sonchus oleraceus

Introduced

14

40

Suaeda moquinii

Native

2

2

Vulpia microstachys

Native

4

18

1. Frequency of plots in which a particular species was noted.
2. Frequency of quadrats in which a particular species was noted.

381

30.96

31.120

Hordeum vulgare {Barley}

Poaceae

B

AH

-

-

-

208

4.52

2.497

Hordeum murinum

Poaceae

I

AH

+

+

+

168

5.20

2.289

Melilotus indica

Fabaceae

I

AH

+

+

+

124

1.75

0.565

Amsinckia menziesii

Boraginaceae

N

AH

+

+

+

124

6.42

2.107

Phalaris minor

Poaceae

I

AH

-

+

+

114

10.14

3.089

Avena sativa

Poaceae

I

A/P

-

-

-

111

3.63

1.059

Erodium cicutarium

Geraniaceae

I

AH

+

+

+

77

5.31

1.065

Medicago polymorpha

Fabaceae

I

AH

-

-

-

52

1.21

0.164

Chenopodium sp.

Chenopodiaceae

N.A.

H

-

-

-

51

1.65

0.219

Sisymbrium irio

Brassicaceae

I

AH

+

+

+

50

0.80

0.104

Bromus m. subsp. rubens

Poaceae

I

AH

+

+

+

49

0.86

0.109

Capsella bursa-pastoris

Brassicaceae

I

AH

-

-

-

38

0.62

0.061

Unknown Cordate Leaved

N.A.

N.A.

N.A.

-

-

-

36

1.88

0.176

Atriplex argentea

Chenopodiaceae

N

AH

+

+

+

36

0.71

0.066

Vulpia myuros

Poaceae

I

AH

-

-

-

24

0.92

0.057

Narrow Leaf Grass

Poaceae

N.A.

H

-

-

-

24

0.71

0.044

Sonchus oleraceus

Asteraceae

I

AH

-

+

-

24

4.29

0.268

Spergularia sp.

Caryophyllaceae

N.A.

H

-

-

-

22

1.07

0.061

Poa annua

Poaceae

I

AH

-

-

-

21

7.50

0.410

Polygonum sp.

Polygonaceae

N.A.

H

-

-

-

18

3.61

0.169

Polypogon monspeliensis

Poaceae

I

AH

-

+

-

14

1.21

0.044

Lactuca serriola

Asteraceae

I

AH

+

+

-

12

26.88

0.840

Bassia hyssopifolia

Chenopodiaceae

I

AH

+

+

+

11

2.09

0.060

Bromus diandrus

Poaceae

I

AH

-

+

+

11

0.73

0.021

Lolium sp.

Poaceae

I

H

-

-

-

10

0.75

0.020

Shiny Grass

Poaceae

N.A.

H

-

-

-

10

0.50

0.013

Sonchus sp.

Asteraceae

I

H

-

-

-

8

4.19

0.087

Brassica nigra

Brassicaceae

I

AH

-

+

-

7

2.57

0.047

Atriplex sp.

Chenopodiaceae

N.A.

S (?)

-

-

-

6

0.50

0.008

Cressa truxillensis

Convolvulaceae

N

PH

+

+

+

5

0.50

0.007

Malva parviflora

Malvaceae

I

AH

-

+

+

4

4.75

0.050

Carthamus tinctorius

Asteraceae

I

AH

-

-

-

4

1.13

0.012

Unknown Narrow Leaved

N.A.

N.A.

N.A.

-

-

-

4

2.38

0.025

Unknown Shiny Leaf

N.A.

N.A.

N.A.

-

-

-

2

1.75

0.009

Annual Atriplex

Chenopodiaceae

N.A.

S (?)

-

-

-

2

1.75

0.009

Unknown toothed leaf.

N.A.

N.A.

N.A.

-

-

-

2

0.50

0.003

Unknown w/ red cotyledons

N.A.

N.A.

N.A.

-

-

-

2

0.50

0.003

Unknown with Fleshy Leaf

N.A.

N.A.

N.A.

-

-

-

1

3.00

0.008

Digitaria sp.

Poaceae

I

H

-

-

-

1

0.50

0.001

Hemizonia pungens

Asteraceae

N

AH

+

+

+

1

15.00

0.039

Hordeum sp.

Poaceae

N.A.

H

-

-

-

1

0.50

0.001

Monolepis nuttalliana

Chenopodiaceae

N

AH

-

+

-

1

0.50

0.001

Senecio vulgaris

Asteraceae

N.A.

AH

-

-

-

1

0.50

0.001

Unknown Grass

Poaceae

N.A.

H

-

-

-

1

0.50

0.001

Unknown Hairy Leaved

N.A.

N.A.

N.A.

-

-

-

1

0.50

0.001

Unknown Hairy Ovate Leaved

N.A.

N.A.

N.A.

-

-

-

1

0.50

0.001

Unknown Lanceolate Leaved

N.A.

N.A.

N.A.

-

-

-

1

0.50

0.001

Unknown Mustard

Brassicaceae

N.A.

H

-

-

-

1

0.50

0.001

Unknown species

N.A.

N.A.

N.A.

-

-

-

-

-

-

Acroptilon repens

Asteraceae

I

PH

-

+

-

-

-

-

Allenrolfea occidentalis

Chenopodiaceae

N

S

+

-

-

-

-

-

Distichlis spicata

Poaceae

N

PH

+

+

+

-

-

-

Helianthus annuus

Asteraceae

N

AH

+

+

-

-

-

-

Heliotropium curassavicum

Boraginaceae

N

PH

+

+

-

-

-

-

Isocoma acradenia

Asteraceae

N

S

+

+

-

-

-

-

Malvella leprosa

Malvaceae

N

PH

-

+

-

-

-

-

Medicago sativa

Fabaceae

I

PH

-

+

-

-

-

-

Rumex crispus

Polygonaceae

I

PH

-

+

+

-

-

-

Salsola tragus

Chenopodiaceae

I

AH

+

+

-

-

-

-

Scirpus acutus

Cyperaceae

N

PH

-

-

+

-

-

-

Sesuvium verrucosum

Aizoaceae

N

PH

+

+

+

-

-

-

Tamarix parviflora

Tamaricaceae

I

T or S

+

-

-

1. Frequency: the number of quadrats in which the taxon was noted. Species with no values listed were those encountered during the pre-project Inventory (2000) that were not observed in sampling quadrats during the baseline survey (2001).
2. Estimated mean percent cover of the taxon calculated from only those quadrats in which the species was noted. Percent cover values were estimated from midpoints of the cover class (e.g., a species with an estimated cover of 5-25% was evaluated as having a cover of 15%).
3. Estimated site-wide mean percent cover calculated from the summed cover data divided by the total number (384) of quadrats.
4. Key to Origins: B, Barley; I, Introduced; N, Native; N.A., Not Known.
5. Key to Life History: ,H, Herb; AH, Annual Herb; PH, Perennial Herb; APH, Annual or Perennial Herb; S, Shrub; T, Tree; N.A., Not Known.
6. Species encountered in Area A during the pre-project Inventory (see Figure 19).
7. Species encountered in Area B during the pre-project Inventory (see Figure 19).
8. Species encountered in Area C during the pre-project Inventory (see Figure 19).

AMCR

American Crow

Corvus brachyrhynchos

+

+

+

AMKE

American Kestrel*

Falco sparverius

+

+

+

AMPI

American Pipit**

Anthus rubescens

+

-

+

BAOW

Barn Owl*

Tyto alba

-

+

+

BARS

Barn Swallow

Hirundo rustica

+

+

+

BHCO

Brown-headed Cowbird*

Molothrus ater

-

-

+

BNST

Black-necked Stilt

Himantopus mexicanus

+

-

-

BRBL

Brewer's Blackbird*

Euphagus cyanocephalus

+

+

+

BUOW

Burrowing Owl**

Athene cunicularia

FSC/CSC

-

-

+

CLSW

Cliff Swallow

Petrochelidon pyrrhonota

+

+

+

CORA

Common Raven

Corvus corax

+

+

-

HOFI

House Finch

Carpodacus mexicanus

+

+

+

HOLA

Horned Lark**

Eremophila alpestris

CSC

+

+

+

KILL

Killdeer*

Charadrius vociferus

+

+

+

LASP

Lark Sparrow*

Chondestes grammacus

+

-

-

LBCU

Long-billed Curlew**

Numenius americanus

CSC

+

+

+

LOSH

Loggerhead Shrike*

Lanius ludovicianus

FSC/CSC

+

+

+

MALL

Mallard*

Anas platyrhynchos

+

+

+

MOPL

Mountain Plover**

Charadrius montanus

FPT/CSC

-

+

-

NOHA

Northern Harrier**

Circus cyaneus

CSC

+

+

+

NOMO

Northern Mockingbird

Mimus polyglottos

+

-

+

PRFA

Prairie Falcon*

Falco mexicanus

CSC

-

+

-

RNPH

Ring-necked Pheasant*

Phasianus colchicus

-

+

+

RTHA

Red-tailed Hawk

Buteo jamaicensis

-

+

-

RWBL

Red-winged Blackbird*

Agelaius phoeniceus

+

+

+

SAPH

Say's Phoebe*

Sayornis saya

-

-

+

SAVS

Savannah Sparrow**

Passerculus sandwichensis

+

+

+

SEOW

Short-eared Owl**

Asio flammeus

CSC

-

+

+

SOSP

Song Sparrow

Melospiza melodia

-

+

+

WCSP

White-crowned Sparrow

Zonotrichia leucophrys

+

+

+

WEKI

Western Kingbird*

Tyrannus verticalis

+

+

+

WEME

Western Meadowlark**

Sturnella neglecta

+

+

+

WESA

Western Sandpiper

Calidris mauri

+

-

-

WHIM

Whimbrel

Numenius phaeopus

+

-

-

WTKI

White-tailed Kite

Elanus leucurus

+

+

+

YHBL

Yellow-headed Blackbird

Xanthocephalus xanthocephalus

+

-

-

YRWA

Yellow-rumped Warbler

Dendroica coronata

-

-

+

1. * = Facultative grassland specialist; **, Obligate grassland specialist as in Vickery et al. 1999.
2. Key to status: FSC, Federal Special Concern species; CSC, CA Special Concern Species; FPT, Federally proposed for listing as Threatened.