Showing papers on "Native plant published in 1979"

Survival of Diaprepes abbreviatus larvae on selected native and ornamental Florida plants.

Abstract: Of 65 ornamental nursery and 6 native plant species examined during 1976-7 at Plymouth, FL, only 9 species of nursery plants and 1 native plant species other than citrus and sugarcane appeared suitable for the development of larvae of Diaprepes abbreviatus (L.). Transport of infested ornamental plants could convey the weevil within and outside of the regulated area in south and central Florida. Native host species could contribute to local weevil populations in Florida.

Response of blue-winged teal to range management on waterfowl production areas in southeastern south Dakota.

Abstract: The blue-winged teal (Anus discors) was the predominant upland-nesting waterfowl species in Waterfowl Production Areas (WPA’s) in southeastern South Dakota. In native plant communities, factors that resulted in high nest density and success were excellent range condition (high proportion of climax vegetational and matted residual vegetation. In tame plant communities, smooth bromegrass (Bromus inermis) cover in which residual vegetation formed a matted mulch had high nest densities and nest success. Many prime wetland areas that have been acquired in the prairie pothole region of the United States by the Fish and Wildlife Service are known as Waterfowl Production Areas and are managed as breeding habitat for waterfowl. Habitat conditions for nesting waterfowl are improved by the maintenance of certain vegetative characteristics of native and tame plant communities and by controlling the state of plant succession. Conflicting opinions on proper management of grassland nesting cover for individual waterfowl species probably results from differences in habitats at different geographical locations and the proportion of different duck species on a study site. Nesting habitat in Iowa that had Kentucky bluegrass (Poa praterzsis) as the dominant cover type and that was grazed lightly to moderately was more productive of blue-winged teal than was ungrazed habitat. Overgrazing was detrimental to teal production (Bennett 1938; Glover 1956; Burgess et al. 1965). Where the surface-feeding duck population included nearly equal proportions of mallards, gadwalls, pintails, and bluewinged teal in North Dakota, overall duck production was reduced considerably by grazing (Kirsh 1969). The potential production of upland nesting waterfowl will increase as our understanding of the relationships between plant and animal communities increases. Our study was designed to determine plant community types and vegetational characteristics present on the WPA’s that provide habitat for upland-nesting waterfowl. Field work was conducted in spring and summer of 1974, while the senior author was a student employee at the Lake Andes National Wildlife Refuge, Lake Andes, South Dakota.

Methods for establishment of native plant communities on topsoiled coal stripmine spoils in the northern Great Plains

Abstract: Use of native plant species in the revegetation of coal stripmined lands is encouraged in federal and state regulations. Experiments concerning such revegetation efforts in Montana are discussed. Two common seeding methods, drill and broadcast seeding, were utilized. At equal seeding rates, drill seeding was found to be superior to broadcast seeding in terms of perennial grass productivity. (15 references, 3 tables)

Effects of the 1978 Freeze on Native Plants of Sonora, Mexico

Abstract: An observation trip to western Sonora was made February 22 to 25 to record evidence of the depth of the December 6 to 10 freeze of 1978 and the effects of this freeze on native desert plants. Observations were recorded at sites where previous collections had been made in research on desert plants of possible landscape use. Numerous visits had been made in the past to these areas in connection with the Hatch Project "Introduction, Breeding and Selection of Arid Land Plant Material for use in Desert Regions." Cold tolerance in a desert species becomes a major criterion for rating potential value of the plant for general landscape use. Making observations in the natural environment of the plant, concerning damage (or the lack of it) after a major freeze, thus becomes very important.

The indigo of commerce in colonial north america

Abstract: It can be demonstrated that the Indigo of Commerce in Colonial North America consisted of three species in the genusIndigofera. One of these was a native plant,I. Caroliniana Mill, while the other two were introduced.Indigofera tinctoria L. (French Indigo), an Old World species, andI. Suffruticosa Mill. (Guatemala Indigo), a New World species, were both introduced into South Carolina in the late 17th and early 18th centuries. Their cultivation flourished until the American Revolution. Neither of the introduced species has become naturalized in the Carolinas.

The Potential of Native Plants for Food, Fiber and Fuel in Arid Regions

Abstract: There is a wealth of native plant material either not being efficiently used or not used at all, that might make important contributions to the food, fiber and fuel needs in arid areas. These are non-agricultural plants, that may be grown with limited water supplies either derived from rainfall or from rainfall augmentation by means of dams, diversions and other means of collecting and distributing moisture from precipatation.