Pre‐mission invasion of Erodium cicutarium in California

  title={Pre‐mission invasion of Erodium cicutarium in California},
  author={Scott A. Mensing and Roger A. Byrne},
  journal={Journal of Biogeography},
Abstract. The California grassland is dominated by alien plant species. It is generally assumed that the invasion of aliens began with the initial introduction of livestock by Spanish missionaries in 1769. In this paper we present pollen evidence which indicates that Erodium cicutarium, a Mediterranean annual, was well established in the Santa Barbara region several years before the founding of the first California mission at San Diego in 1769. Historical evidence shows that it took the Spanish… 

Removing an invader: evidence for forces reassembling a Chihuahuan Desert ecosystem

Surprisingly, the abundance of native species collectively was decreased by E. cicutarium removal, however, previously rare Astragalus nuttallianus appears to be facilitated by the invasive species, as demonstrated by higher density and relative abundance.

The relative importance of disturbance and exotic-plant abundance in California coastal sage scrub.

It is found that disturbance history was only modestly related to exotic abundance overall, but fire frequency showed the strongest association, and effective CSS conservation will require developing means to curb the negative impacts of exotic plants, which may abound with or without severe or recent disturbance.

The Biology of Canadian Weeds. 151. Erodium cicutarium (L.) L'Hér. ex Aiton

Stork's bill, Erodium cicutarium, is an annual weed of the geranium family (Geraniaceae), native to Mediterranean Europe, North Africa and western Asia, which has spread widely to temperate regions of both hemispheres, in particular to semi-arid ranges and prairies where it is frequently a dominant weed.

The Biology of Canadian Weeds. 151. Erodium cicutarium (L.) L'Hér. ex Aiton

Stork's bill, Erodium cicutarium, is an annual weed of the geranium family (Geraniaceae), native to Mediterranean Europe, North Africa and western Asia, which has spread widely to temperate regions of both hemispheres and has been host to viral, fungal and insect pathogens that can cause damage to crops and pastures.

Stability of exotic annual grasses following restoration efforts in southern California coastal sage scrub

In restoration of semi-arid shrub ecosystems, grass control can reduce exotic grasses over the short-term, however, recovery of grasses in the longer term indicates that restoration does not form a new stable state.

Human impacts, plant invasion, and imperiled plant species in California.

The distribution of 834 of the more than 1000 exotic plant taxa that have become established in California, USA is examined, finding that the exotic flora is richest in low-lying coastal sites that harbor large numbers of imperiled species, while native diversity is highest in areas with high mean elevation.

Dispersal Limitation Does Not Control High Elevational Distribution of Alien Plant Species in the Southern Sierra Nevada, California

Testing the hypothesis that alien plant species invading high elevations around the world are typically climate generalists capable of growing across a wide elevational range found that native species showed a distribution of upper elevation limits peaking at 3000–3499 m, an elevation that corresponds to the zone of upper montane and subalpine forests.

High water-use efficiency and growth contribute to success of non-native Erodium cicutarium in a Sonoran Desert winter annual community

Testing hypotheses for its success found no evidence for a release from natural enemies, and E. cicutarium was able to achieve higher growth rates while controlling leaf-level water loss, allowing it to out-compete natives.

The Holocene biogeography of Pinus sabiniana Douglas ex D. Don (gray pine) in California

Pinus sabiniana Douglas ex D. Don (gray pine) is one of the dominant species in the ubiquitous Gray Pine-Blue Oak Woodland that rings the Great Central Valley of California. The species is absent,

Seed and establishment limitation contribute to long-term native forb declines in California grasslands.

Exotic competition is likely only one factor contributing to local declines of native species in invaded ecosystems, with a combination of propagule limitation, site quality, and land use history also playing important and interactive roles in native plant recruitment.




ABSTRACT A gridline survey for exotic plant species was undertaken in 1983 and repeated in 2005 at the Desert Laboratory, a 352-ha natural area just west of downtown Tucson, Arizona, USA. Coordinate

Self-burial behaviour of Erodium cicutarium seeds.

The self-planting mechanism of the hygroscopic 'seeds' of Erodium cicutarium was examined and it was found that seeds with intact awns and carpels attained greater depths than that of those without these structures.

Germination and Seedling Establishment in California Annual Grassland

Comparison of depletion of the seed-bank in the soil and increase of plant density showed that seeds germinating in the first week of the growing season produced fewer established seedlings than seeds germination in the second or third weeks.

Stratification in Recent Sediments of Santa Barbara Basin as Controlled by Organisms and Water Character

Santa Barbara Basin is one of the most interesting of the fourteen submarine basins off southern California because of the high organic productivity of its surface waters and the low oxygen content

Ecological Imperialism: The Biological Expansion of Europe, 900-1900

People of European descent form the bulk of the population in most of the temperate zones of the world - North America, Australia and New Zealand. The military successes of European imperialism are

Germination and Seedling Establishment

This chapter is concerned for the first time with detailed discussions of states and processes as they relate to individual plants, to draw attention to the neglect of these processes by physiologists, as well as to assess the significance of germination and establishment in larger scale ecological processes.

Sedimentation and climatic patterns in the Santa Barbara Basin during the 19th and 20th centuries

The thickness of annual sediment laminations in the Santa Barbara Basin is compared to southern California drought-resistant tree growth and to regional indices of rainfall and temperature. The rate

Mineralogy And Sedimentation History, Santa Barbara Basin, California

ABSTRACT Holocene sediments in Santa Barbara Basin, California Continental Borderland, consist primarily of laminated olive gray lutite intercalated with abundant layers of gray lutite. On the basis