... highest abundance in June and July. Abundance of Trombidiidae was bimodal with higher abundance in May and ... were significantly more abundant in orchard M, and Trombidiidae and Homoptera other than Aphi...
NBII National Biological Information Infrastructure
... Forces Health Surveillance Center, 2900 Linden Lane, Suite 100, Silver Spring, MD 20910 Abstract The seasonal abundance and ... ...
We document invertebrate benthic and drift dynamics in a regulated river in central Spain at two temporal scales: seasonal (for both benthos and drift) and daily (for drift). The benthic abundance of individuals and taxon richness generally increased in the summer. Drift abundance showed no ...
NASA Astrophysics Data System (ADS)
The population dynamics of rat ectoparasites on Taiwan was studied. During 18 months of observation, the flea, louse, and mite populations exhibited definite seasonal periodicities. The abundance of all 3 populations was greatest during the cool fall and ...
National Technical Information Service (NTIS)
... III and IV early season soybean production systems (ESPS) (Ashlock et al. 1998, Lorenz et al. 2002, ... et al. 1971) and type of production system (ESPS or FSSPS) to the apparent increased stink bug ... ...
A study was conducted during 1999-2000 in Pensacola Bay, Florida, USA to characterize the seasonal dynamics of nutrients, phytoplankton, and bacterioplankton. Monthly samples were collected from 5 sites spanning the salinity gradient. Abundances of non-heterocystous chroococcoid...
EPA Science Inventory
The benthic habitat is the terminal destination for marine animals in terms of their reproductive lifecycle. Recruitment dynamics relating to seasonal changes in the benthic habitat may be the best source of information for predicting recruit abundance an...
... Title : Seasonal Fluctuations in the Abundance of the Larvae of Mackerel and Herring in the Northeastern Atlantic and North Sea,. ...
DTIC Science & Technology
Basic features of seasonal and multiyear dynamics of accumulation of Chernobyl-derived 137Cs and 90Sr in wood are considered. Seasonal variation in the radionuclide concentration are shown to be more regular and predictable than the multiyear variation. Seasonal dynamics of 137Cs is opposite by ...
PubMed
The article provides information on the seasons of West Virginia. There are four sections, one for each season. The different seasons have information on wildlife that are abundant at ... ...
With the advent of molecular methods, it became clear that microbial biodiversity had been vastly underestimated. Since then, species abundance patterns were determined for several environments, but temporal changes in species composition were not studied to the same level of resolution. Using massively parallel sequencing on the 454 GS FLX platform we identified a highly ...
PubMed Central
This teaching box is designed to teach students about the biotic and abiotic factors that drive the process of upwelling in the oceans. Students will deepen their understanding of the dynamics that create a seasonal abundance of marine life in coastal upwelling zones by exploring marine food webs, primary food production in the ocean, ...
NSDL National Science Digital Library
... York. Kfir, R. Seasonal abundance of the stem borer Chilo partellus (Lepidoptera: Pyralidae) and its parasites on summer grain ... R. Attempts at biological control of the stem borer Chilo partellus (Swin...
... and abundant food resources (Kunz 1974; Kunz and Robson 1995). At this time, many colony members should ... flight is consistent with previous reports (Kunz and Robson 1995). However, volant juvenile bats...
... W. R. Cotton scout handbook. 1992. Univ. Ga. College of Agriculture Coop. Ext. Serv. McPherson, R. M. Relationship between soybean maturity group and the phenology and ... ...
... Title : Relative Abundance and Seasonal and Geographic Distribution of Coquillettidia Perturbans (Walker) Collected with Light Traps from USAF ...
... Title : Marine Mammal Habitat in Ecuador: Seasonal Abundance and Environmental Distribution. Descriptive Note : Conference paper. ...
Aerobic anoxygenic phototrophic bacteria (AAPB) are a group of heterotrophic bacteria capable of photosynthesis. The dynamics of AAPB in the East China Sea, a typical marginal sea characterized by diverse physical-chemical and ecological conditions, were investigated from April 2002 to September 2003. The results showed that the abundance of AAPB varied ...
The dynamics of litter stock, microbial biomass, and composition and structure of microbial communities, were studied in the course of soil organic matter transformation during vegetation season. The dynamics of litter stock in coniferous and deciduous forests proved to correlate with the biomass and total ...
Seasonal dynamics of 2 trematode species, Cyathocotyle bushiensis and Sphaeridiotrema globulus, were assessed in relation to life history traits of the parasites and their hosts, as well as abundance of host species and abundance of infective stages. Both of these trematodes are associated with recurrent mortality ...
The seasonal dynamics of river biofilm communities in two German rivers, the Elbe and one of its tributaries, the Spittelwasser, were investigated for the first time by using fluorescence in situ hybridization and a standardized biofilm sampling procedure. We show the importance of members of the ? subclass of the class Proteobacteria, which formed the ...
Seasonal trends and short-term fluctuations in abundance of Plodia interpunctella (Hübner) and Cadra cautella (Walker) infesting corn stored on two South Carolina farms were studied during three storage seasons. Coils of corrugated paper placed on the grain surface were used to trap mature larvae ...
Technology Transfer Automated Retrieval System (TEKTRAN)
In this paper, we demonstrate that the seasonal dynamics in the abiotic factors, without including seasonal changes in the biological relationships, can appropriately account for the seasonal dynamics of Chrysochromulina spp. This is through the analysis of data on the population ...
... Title : QUANTITATIVE DISTRIBUTION AND SEASONAL DYNAMICS OF ZOOPLANKTON IN THE NEWFOUNDLAND AREA,. ...
We have studied the temporal variation in viral abundances and community assemblage in the eutrophic Lake Loosdrecht through epifluorescence microscopy and pulsed field gel electrophoresis (PFGE). The virioplankton community was a dynamic component of the aquatic community, with abundances ranging between ...
The population dynamics of a fire ant (Solenopsis invicta Buren) parasitoid (Pseudacteon tricuspis Borgmeier) was studied in Louisiana. The objectives of this study were to understand the daily and seasonal population dynamics of P. tricuspis in the context of environmental variables, determine whether P. tricuspis populations were ...
There are an estimated 10(30) virioplankton in the world oceans, the majority of which are phages (viruses that infect bacteria). Marine phages encompass enormous genetic diversity, affect biogeochemical cycling of elements, and partially control aspects of prokaryotic production and diversity. Despite their importance, there is a paucity of data describing virioplankton distributions over time ...
1. Rainfall is the prime climatic factor underpinning the dynamics of African savanna ungulates, but no study has analysed its influence on the abundance of these ungulates at monthly to multiannual time scales. 2. We report relationships between rainfall and changes in age- and sex-structured abundances of seven ungulate species ...
The community structure and seasonal dynamics of 16 helminth species infecting green (Lepomis cyanellus) and bluegill (L. macrochirus) sunfishes in Charlie's Pond, North Carolina, was examined. One hundred and fifty-four fishes including 90 green sunfish and 64 bluegill sunfish were collected between March and November 2000 and examined for the presence of ...
A 2 1/2-year study (September 1980-March 1983) of abundance, dispersion, and prevalence of the pseudophyllidean cestode, Bothriocephalus acheilognathi, in 3 species of fish (Gambusia affinis, Notropis lutrensis, and Pimephales promelas) was conducted in 3 ecologically distinct areas of a North Carolina cooling pond. Mean infrapopulation density and prevalence differed by site, ...
Energy Citations Database
Calanoid copepod abundance and distribution were measured by monthly plankton tows from May through November in 1998 and March through August in 1999 in three subestuaries of the Waquoit Bay estuarine system. There was a dramatic seasonal change in the composition of calanoids in Waquoit Bay with a spring community consisting of Acartia hudsonica, ...
