Iver Johnson Shotgun Serial Number Database Fix
Iver Johnson Shotgun Serial Number Database >>> https://shurll.com/2texvX
I see nothing on the bottom tang. A bit rusty & what I suppose was chrome type plating is gone. Appears to be smooth with no indication of serial number removal. Also, the number I previously listed (36581) was not on the hammer but on the barrel latch on the breech end visable when the barrel and stock are broke to load.Thank you for taking the time to respond.
I have a 16 guage iver johnson with the serial number 25053 on the bottom tang. I was lucky enough to get this from my father-in-law who got it from his grandpa years ago. The gun hasn't been fired in at least 40 years and had some issues. I had the gun gone through and re-done recently and am excited to go pop a few rounds off. It isn't the greatest looking gun but I would never sell it as it has been in the family for generations. In the love of history and trying to find out more about this gun I'm wondering if you can help me figure out how old this gun is. I've been looking for a while now but have not had any success finding serial number information on these guns, any help
\"BBXB\" is the serial number for an Iver Johnson Champion Model shotgun made in the period 1939-1957 when Iver Johnson used letters in place of numbers. There are no records available to give a more exact date.
Food and cash crops play important roles in Australia's economy with black, grey and red clay soil, widely use for growing cotton, wheat, corn and other crops in rotation. While the majority of cotton growers use nitrogen and phosphate fertilizers only in the form of agrochemicals, a few experiment with the addition of manure or composted plant material before planting. We hypothesized that the use of such organic amendments would enhance the soil microbial function through increased microbial diversity and abundance, thus contribute to improved soil sustainability. To test the hypothesis we collected soil samples from two cotton-growing farms in close geographical proximity and with mostly similar production practices other than one grower has been using composted plants as organic amendment and the second farmer uses only agrochemicals. We applied the Biolog Ecoplate system to study the metabolic signature of microbial communities and used qPCR to estimate the abundance of functional genes in the soil. The soil treated with organic amendments clearly showed higher metabolic activity of a more diverse range of carbon sources as well as higher abundance of genes involved in the nitrogen and phosphorous cycles. Since microbes undertake a large number of soil functions, the use of organic amendments can contribute to the sustainability of agricultural soils.
Many marine sedimentary microbes have only been identified by 16S rRNA sequences. Consequently, little is known about the types of metabolism, activity levels, or relative abundance of these groups in marine sediments. We found that one of these uncultured groups, called the Miscellaneous Crenarchaeotal Group (MCG), dominated clone libraries made from reverse transcribed 16S rRNA, and 454 pyrosequenced 16S rRNA genes, in the White Oak River estuary. Primers suitable for quantitative PCR were developed for MCG and used to show that 16S rRNA DNA copy numbers from MCG account for nearly all the archaeal 16S rRNA genes present. RT-qPCR shows much less MCG rRNA than total archaeal rRNA, but comparisons of different primers for each group suggest bias in the RNA-based work relative to the DNA-based work. There is no evidence of a population shift with depth below the sulfate-methane transition zone, suggesting that the metabolism of MCG may not be tied to sulfur or methane cycles. We classified 2,771 new sequences within the SSU Silva 106 database that, along with the classified sequences in the Silva database was used to make an MCG database of 4,646 sequences that allowed us to increase the named subgroups of MCG from 7 to 19. Percent terrestrial sequences in each subgroup is positively correlated with percent of the marine sequences that are nearshore, suggesting that membership in the different subgroups is not random, but dictated by environmental selective pressures. Given their high phylogenetic diversity, ubiquitous distribution in anoxic environments, and high DNA copy number relative to total archaea, members of MCG are most likely anaerobic heterotrophs who are integral to the post-depositional marine carbon cycle.
Earthworms are regarded as ecosystem engineers, integral to soil processes such as aggregation, nutrient cycling, water infiltration, plant growth and microbial function. Earthworm surveys were conducted for one year on hedge-to-field transects in arable and pasture fields (Yorkshire, UK). The transects incorporated hedgerow and field margin habitats and extended 60 m into the arable or pasture field. At defined distances, earthworm abundance and biomass were recorded, and earthworms were identified to species and ecological group. Soil density, moisture and temperature were also measured. Additional transects were surveyed on experimental plots with arable-to-ley conversions in the arable fields (wheat crop to grass-clover ley), and tilled plots in the pasture fields (grass-clover ley to wheat crop). The conversion plots were established to determine the benefit of grass-clover leys on soil function; and the tilled pasture plots were established to compare the impact of conventional or minimum tillage practices on earthworm abundance and diversity. A baseline survey was conducted before establishment of the experimental ley and tillage plots. The results showed differences in earthworm abundance, with greater earthworm numbers in the pasture soils compared to arable soils. In both soils, abundance of ecological group was endogeic > epigeic > anecic, and each group was dominated by the same species: Allolobophora chlorotica, Lumbricus castaneus and Apporectodea longa. After one year of treatment, there was some indication of increased earthworm abundance in the arable-to-ley conversion strips. Conversely, tillage in the pasture plots tended to reduce earthworm abundance, and conventional tillage tended to have the greater impact. However, within these major changes, there was also evidence of spatial (distance along transect; field location) and temporal (seasonal) variation on earthworm abundance. Although conversion to ley or tillage did not alter the pattern of
There is renewed interest in implementing surrogate species approaches in conservation planning due to the large number of species in need of management but limited resources and data. One type of surrogate approach involves selection of one or a few species to represent a larger group of species requiring similar management actions, so that protection and persistence of the selected species would result in conservation of the group of species. However, among the criticisms of surrogate approaches is the need to test underlying assumptions, which remain rarely examined. In this study, we tested one of the fundamental assumptions underlying use of surrogate species in recovery planning: that there exist groups of threatened and endangered species that are sufficiently similar to warrant similar management or recovery criteria. Using a comprehensive database of all plant species listed under the U.S. Endangered Species Act and tree-based random forest analysis, we found no evidence of species groups based on a set of distributional and biological traits or by abundances and patterns of decline. Our results suggested that application of surrogate approaches for endangered species recovery would be unjustified. Thus, conservation planning focused on individual species and their patterns of decline will likely be required to recover listed species. PMID:23240051
There is renewed interest in implementing surrogate species approaches in conservation planning due to the large number of species in need of management but limited resources and data. One type of surrogate approach involves selection of one or a few species to represent a larger group of species requiring similar management actions, so that protection and persistence of the selected species would result in conservation of the group of species. However, among the criticisms of surrogate approaches is the need to test underlying assumptions, which remain rarely examined. In this study, we tested one of the fundamental assumptions underlying use of surrogate species in recovery planning: that there exist groups of threatened and endangered species that are sufficiently similar to warrant similar management or recovery criteria. Using a comprehensive database of all plant species listed under the U.S. Endangered Species Act and tree-based random forest analysis, we found no evidence of species groups based on a set of distributional and biological traits or by abundances and patterns of decline. Our results suggested that application of surrogate approaches for endangered species recovery would be unjustified. Thus, conservation planning focused on individual species and their patterns of decline will likely be required to recover listed species.
Downed wood functions as a source of nurse logs, physical structure in streams, food, and carbon. Because downed wood is important in upland and aquatic habitats, an understanding of wood recruitment along a continuum from wet to dry landscapes is critical for both preservation of biodiversity and restoration of natural ecosystem structure and function. We assessed downed wood in public and private forests of Washington and Oregon by using a subset of the Forest Inventory and Analysis (FIA) database including 15,842 sampled conditions. Multivariate regression trees, ANOVA, and t-tests were used to discern environmental conditions most closely associated with abundance of woody debris. Of the 16 parameters included in the analysis, rainfall, forest ownership, number of damaged standing trees, and forest elevation were most indicative of woody debris abundance. The Hemlock/spruce Group, including hemlock, spruce, cedar, and white pine, most associated with wetter soils, had significantly more downed wood than 12 other forest groups. The Ponderosa Pine Group, indicative of drier sites with higher fire frequencies, included ponderosa pine, sugar pine, and incense cedar, and had significantly less downed wood volume. Overall, the amount of woody debris in either the Spruce/hemlock Group or the Ponderosa Pine Group did not change significantly as tree age increased from 5 to 350 years. Plots within the Hemlock/spruce with greater standing tree volume also had significantly greater downed wood volume. In contrast, greater downed wood volume was not associated with greater standing tree volume in the Ponderosa Pine Group. Knowledge of linkages among environmental variables and stand characteristics are useful in development of regional forest models aimed at understanding the effects of climate change and disturbance on forest succession. 153554b96e
https://www.corposs.org/forum/bienvenido-al-foro/the-jerm-msr206-utility-v178-written-by-the-jerm-6l
https://es.senorrio.com/group/senor-rio-group/discussion/501feb35-2965-4dd3-8b95-5a68ba29fbdb