Titlebook: ;

ACRID

Stress

辞职

Sources of the Naturalized Grasses and Herbs in California Grasslands,rtions of the island chain to the west of what later became revealed as the San Andreas fault system were far to the south of their present situation. The sea covered the present Transverse Ranges but was penetrated by the San Gabriel Mountains (Raven and Axelrod 1978).

博爱家

Endemic

Impacts of Non-Domesticated Vertebrates on California Grasslands,earing as natural communities become better understood. This paper concerns a subset of this larger issue, namely, the impacts of vertebrate animals in California grassland communities. No one would deny the profound effects on this community-type imposed by grazing livestock. But what about non-domesticated vertebrates?

GOAT

Management Controls on Productivity,0). Most of the pristine valley grassland (Heady 1977) has been replaced by irrigated agricultural crops, but much annual grassland remains on the margin of the Great Valley in open grassland, oak (. sp.) savannas, and as understory vegetation in the foothill oak woodlands of the Coast Ranges and the Sierra Nevada mountains below 1000 m elevation.

cinder

https://doi.org/10.1007/978-3-642-91152-1bury 1929; Watt 1947). Temporal and spatial variation in resources (Grubb 1977; Wiens 1977; Tilman 1982), grazing (Ellison 1960; Harper 1969), disturbance (Connell 1978; Pickett 1980), and dispersal dynamics (Caswell 1978) all have been proposed as regulators of species diversity because of their effect on competitive coexistence.

明确

https://doi.org/10.1007/978-3-476-04174-6dominance. Any functional explanation depends on structural descriptions, a relationship infrequently acknowledged (Whittaker 1970), although resource partitioning is a fundamental tenet of ecological theory.

Irksome

裂隙