Resultados de búsqueda - Population Statistics.

What is the monetary value of a clean environment in The Himalayas? por Grossman, Victor

Enlace del recurso

Trends in theoretical plant epidemiology por Scherm, H., Ngugi, H., Ojiambo, P.

“…We review trends and advances in three specific areas of theoretical plant epidemiology: models of temporal and spatial dynamics of disease, the synergism of epidemiology and population genetics, and progress in statistical epidemiology. …”
Enlace del recurso

Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: experimental evidence of the effects of temperature and host plant on population growth rates por Yaninek, J., Gutierrez, A.P., Herren, H.R.

“…The lower thermal threshold for development was estimated to be 14.4°C. A simple population model based on empirical rm values predicted larger mite populations on host plants during the wet season than commonly observed. …”
Enlace del recurso

Rwanda Nutrition, Markets and Gender Analysis 2015: An integrated approach towards alleviating malnutrition among vulnerable populations in Rwanda por Lung'aho, Mercy G., Birachi, Eliud Abucheli, Butare, L., Musoni, Augustine, Muhinda M, JJ, Buruchara, Robin Arani

Enlace del recurso

No detectable association of the ESR Pvull mutation with sow productivity in a Meishan x Large White F2 population por Gibson, John P., Jiang, Z.H., Robinson, J.A.B., Archibald, A.L., Haley, C.S.

“…The polymorphism at the PvuII recognition site in the ESR gene showed no statistically significant association with sow productivity traits in a Meishan x Large White F2 population. …”
Enlace del recurso

The dynamics of trypanosome infections in natural populations of tsetse (Diptera: Glossinidae) studied using wing-fray and ovarian ageing techniques por Leak, S.G.A., Rowlands, G.J.

Enlace del recurso

Examining dietary cadmium exposure levels within the population of a metal recycling village in Bac Ninh Province, Vietnam por Hagberg, Marcus

“…This report examines the dietary cadmium (Cd) exposure levels within the population of a metal re-cycling village in northern Vietnam, close to the city of Hanoi. …”

Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator por Cagnotti, Cynthia Lorena, Andorno, Andrea Veronica, Hernández, Carmen Marcela, Carabajal Paladino, Leonale Suzel, Botto, Eduardo Norberto, López, Silvia Noemi

“…An over-flooding ratio of 10:1 caused a decline in larvae production compared with the untreated control cages, but these differences were not statistically significant. Using an over-flooding ratio of 15:1, the moth population in the cages with irradiated insects decreased significantly compared with those in the untreated control cages. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

Priset på åkermark por Lundell, Anders, Östlund, Jonas

Enlace del recurso

Yield improvement in maize for tolerance to low soil nitrogen por Ajala, S., Olaniyan, A.B., Olayiwola, M.O., Job, A.O.

Enlace del recurso

Bayesian segregation analysis of somatic cell scores of ontario Holstein cattle por Pan, Y., Boettcher, P.J., Gibson, John P.

Enlace del recurso

Changes in frigate tuna populations on the south coast of Sri Lanka: evidence of the shifting baseline syndrome from analysis of fisher observations por Venkatachalam, A.J., Price, A.R.G., Chandrasekara, S., Senaratna Sellamuttu, Sonali, Kaler, J.

“…This study examines changes in frigate tuna populations in southern Sri Lanka, based on reports from fishers in three age classes. …”
Enlace del recurso

Investigating the role of poultry in livelihoods and the impact of HPAI in Ethiopia por Ayele, Gezahegn, Asare-Marfo, Dorene, Birol, Ekin, Roy, Devesh

“…At a micro level, it has been estimated that livestock supports the livelihoods of about 80 percent of the rural population (FAO 2004). Almost all (94 percent) of the country’s 34 million poultry population comprises indigenous birds, revealing that the poultry subsector is characterized by small-scale household-level poultry (Central Statistical Agency (CSA) 2005; Alemu et al. 2008).…”
Enlace del recurso

Spatiotemporal patterns of genetic change amongst populations of cassava Bemisia tabaci whiteflies driving virus pandemics in East and Central Africa por Legg, James P., Sseruwagi, P., Boniface, S., Okao-Okuja, G., Shirima, R.R., Bigirimana, S., Gashaka, G., Herrmann, H.W., Jeremiah, S., Ndyetabula, I., Tata-Hangy, W.K., Masembe, C., Brown, J., Obiero, H.

“…During the 14-year study period, the group associated with the CMD pandemic expansion shifted from SSA2 to SSA1-SG1. Population genetics analyses of SSA1, using Tajima's D, Fu's Fs and Rojas’ R2 statistics confirmed a temporal transition in SSA1 populations from neutrally evolving at the outset, to rapidly expanding from 2000 to 2003, then back to populations more at equilibrium after 2004. …”
Enlace del recurso

Why do farmers expand their land into forests?: theories and evidence form Tanzania por Angelsen, A., Shitindi, E.F.K., Aarrestad, Johnstein

“…The controversial role of population growth in expalining deforestation is addressed. …”
Enlace del recurso

Multiple QTL mapping in autopolyploids: A random-effect model approach with application in a hexaploid sweetpotato full-sib population por Silva Pereira, G. da, Gemenet, D., Mollinari, M., Olukolu, B.A., Wood, J.C., Díaz, F., Mosquera, V., Grüneberg, W.J., Buell, R., Yencho, George Craig, Zeng, Z.B.

“…Here we report the use of a random-effect model approach to map multiple QTL based on score statistics in a sweetpotato bi-parental population ('Beauregard' × 'Tanzania') with 315 full-sibs. …”
Enlace del recurso

Population genomics of the widespread African savannah trees Afzelia africana and Afzelia quanzensis reveals no significant past fragmentation of their distribution ranges por Donkpegan, A.S.L., Piñeiro, R., Heuertz, M., Duminil, J., Daïnou, K., Doucet, J.-L., Hardy, Olivier J.

“…However, these clusters revealed low levels of differentiation and no clear geographical entities, so that they were interpreted as resulting from the isolation by distance pattern rather than from past population fragmentation. These results suggest that populations have remained connected throughout the large, continuous savannah landscapes. …”
Enlace del recurso

Prediction of the in vitro gas production dynamics of kikuyu grass by near-infrared reflectance spectroscopy using spectrally-structured sample populations por Herrero, Mario, Jessop, N.S., Fawcett, R.H., Murray, I., Dent, J.B.

“…The equations were validated using a set of 48 samples previously chosen at random from the total sample population (validation set). Satisfactory calibrations and cross-validations were obtained for all the static measurements of gas production (R2 = 0.77−0.86 (S.E. 0.48−2.06) and 0.74−0.82 (S.E. 0.50−2.18), for the gas volumes from 3 to 96 h, respectively), and the use of a spectrally-structured population improved the calibration and cross-validation statistics of the NIRS equations. …”
Enlace del recurso

Identification of quantitative trait loci affecting resistance to gastrointestinal parasites in a double backcross population of Red Maasai and Dorper sheep por Silva, M.V.B., Sonstegard, T.S., Hanotte, Olivier H., Mugambi, J.M.M., García, J.F., Nagda, S.M., Gibson, John P., Iraqi, F.A., McClintock, A.E., Kemp, Stephen J., Boettcher, P.J., Malek, M., Tassell, C.P. van, Baker, R.L.

“…A genome-wide scan for quantitative trait loci (QTL) affecting gastrointestinal nematode resistance in sheep was completed using a double backcross population derived from Red Maasai and Dorper ewes bred to F1 rams. …”
Enlace del recurso

The ideological symptom of tenure insecurity por Wallin Fernqvist, Karolina

Enlace del recurso