Treesearch

We compared consistency of species richness and relative abundance data collected concurrently using mist netting and point counts during migration in riparian habitats along the middle Rio Grande of central New Mexico. Mist netting detected 74% and point counts detected 82% of the 197 species encountered during the study. Species that mist netting failed to capture were usually large, such as quails, raptors, owls, woodpeckers, jays, and crows, or those foraging on the wing, such as swallows and nighthawks; species that point counts failed to detect were usually small, such as sparrows,...

The Southwestern Willow Flycatcher Recovery Team is composed of a Technical Subgroup (pg. ii), six Implementation Subgroups (Appendix A), and a Tribal Working Group. The Technical Subgroup consists of 14 academic scientists, researchers, and resource managers with a wide range of expertise in avian biology and ecology, southwestern willow flycatcher ecology, cowbird ecology, riparian ecology, hydrology, range management, and conservation planning. The Implementation Subgroups consist of more than 200 community representatives across the Southwest including ranchers, environmental representa...

The approach of FRA 2000 by FAO was the reliance on the participation of individual countries for both supply and analysis of information. It is hoped that this approach will lead for further capacity building in countries (FRA 2000 -main report). While countries firmly support this approach, it has sometimes been criticised on the basis that country information may be inaccurate, incomplete, out-of-date, or internationally inconsistent (Stokstad, 2001; Czaplewski, 2002). According to the FRA 2000 main report, many countries still lack reliable primary information at the national level....

Most nursery managers and culturists are comfortable growing bareroot seedlings. A few have become comfortable growing containerized seedlings. This discussion will compare the two systems, with a focus on SYP production, and will include a discussion on capital, equipment, space, and personnel requirements.

Muscodor vitigenus is a recently described endophytic fungus of Paullinia paullinioides, a liana growing in the understorey of the rainforests of the Peruvian Amazon. This fungus produces naphthalene under certain cultural conditions. Naphthalene produced by M. vitigenus was identified by gas chromatography/mass spectrometry. Its chromatographic and mass spectral properties were identical to authentic naphthalene. Agar plugs supporting growth of the fungus and producing known amounts of naphthalene effectively repelled the adult stage of the wheat stem sawfly, Cephus cinctus, in Y-tube...

We evaluated wheat stem sawfly, Cephus cinctus Norton, parasitism, infestation, and sawfly-cut stems in wheat fields bordering intensely tilled (no visible stubble residue), minimally tilled (>75% stubble residue visible), and untilled (chemical fallow, herbicide fallow management) summer fallow fields in north-central and south-central Montana. No difference in sawfly parasitism or sawfly-cut stems was found between fields bordering minimally tilled and fields bordering untilled summer fallow. Sawfly parasitism in fields bordering untilled summer fallow was greater than in fields bordering...

The Colorado River Indian Reservation is located in southwestern Arizona on the California/Arizona border. On the reservation is the 'Ahakhav Tribal Preserve, located on the banks of the Lower Colorado River. On the preserve is the 'Ahakhav Native Plant Nursery, specializing in plants used for southwest riparian restoration. The nursery primarily grows native mesquite, cottonwood and willow. Due to increased competition and minimal tribal support, the nursery is at a critical turning point.

In 1916, The Red Lake Indian Forest Act was created. The Red Lake Band of Chippewa in Minnesota stood alone and refused to consent to allotment. Consequently, The Red Lake Band is the only tribe in Minnesota for which a congressional act was passed to secure a permanent economic foundation for the band and its future.

This information sheet outlines the major requirements and factors that should be considered by someone contemplating starting a small greenhouse operation for the production of tree seedlings, nursery stock, perennials, herbs or other specialized crops. It can also be used when planning an expansion of an existing business.

The Mapuche (native indians from Chile) population is one of the largest populations of native indians left in America (approximately 1 million). As many of the other Native communities, they continuously struggle to maintain their rituals and customs. One of the most valuable customs for the Mapuche is the use of medicinal plants. All these plants are native plants from the southern area of Chile and some of them are now hard to get. Two workshops were done with a group of Machis (Mapuche medicine woman), in order to determine the species they used the most and the scarcity status of...