Resultados de búsqueda - "biology"

Abundance of syrphid larvae in willow plantations : role of habitat type, prey (Phratora vulgatissima) availability and interactions with other natural enemies por Johansson, Hans

“…This study shows that a higher diversity within the enemy-complex may have negative effects on the biological control of pests and that predators within the same guild are susceptible to predation in certain developmental stages. …”

Undervegetation : användning av vedartade marktäckare i anläggning por Nilstein, Kristina

“…The woody ground covers can improve the biological conditions in the habitat as well to flora as to fauna. …”

Ett grönt möte mellan eklandskapet och en ny stadsdel i Linköping por Zenkert, Linnéa

“…The web strengthens the biological values and the accessibility out in the landscape. …”
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Inhysningssystem för kalvar och ungdjur i större besättningar por Petersson, Kristin

“…Technical descriptions and designs were made for the different housing systems. The biological prerequisites and consequences including weight gain, animal health and room for natural behaviour were presented for the different housing systems. …”
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Associated learning of odour and colour in the seven-spotted ladybird Coccinella septempunctata (L.) : an olfactometer experiment por Remén, Cecilia

“…The potential to increase the effectiveness of ladybirds as a biological control agent is discussed. Sammanfattning " Inlärning av färg och doft hos sjuprickiga nyckelpigor Coccinella septempunctata (L.) – ett olfaktormeter experiment" I denna undersökning studerades sjuprickiga nyckelpigors Coccinella septempunctata (L.) förmåga att associera en kombinerad stimuli av färg och doft med mat. …”

Commercial forestland investments por Olsson, Mikael, Sparrevik, Gustaf

“…The forest asset has traditionally been desirable in a portfolio for the diversification aspect associated with the unique characteristic of the biological growth being uncorrelated to the financial markets. …”
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Optimerad hygienisering vid kompostering av avloppsslam por Dunder, Linda

“…At higher pH the major part of the ammonia is in its uncharged form, NH3, which is harmful for most biological organisms. At a lower pH, in contrast, the ammonia is in its charged state, NH4+, which is readily available as plant nutrient. …”

Physiological ranges and variability in organ blood flow in laboratory animals por Anger, Camilla

“…Variability in organ blood flow rates originate from both biological variations within and between individuals as well as from extrinsic variation due to protocol design, measuring technique and data assessment.…”
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Prioritizing Colombian plant genetic resources for investment in research using indicators about the geographic origin, vulnerability status, economic benefits, and food security i... por Cerón Souza, Ivania, Delgadillo Duran, Diego A., Polo Murcia, Sonia M., Sarmiento Naizaque, Zaida X., Reyes Herrera, Paula H.

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Effect of tree legumes in hedgerows on soil fertility changes and crop performance in the semiarid highlands of Rwanda por Balasubramanian, V., Sekayange, L.

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Tectonics, climate and the diversification of the tropical African terrestrial flora and fauna por Couvreur, T.L., Dauby, G., Blach-Overgaard, A., Deblauwe, V., Dessein, S., Droissart, V., Hardy, Olivier J., Harris, D.J., Janssens, S., Ley, A.C., Mackinder, B.A., Sonke, B., Sosef, M.S., Stevart, T., Svenning, J.C., Wieringa, J.J., Faye, A., Missoup, A.D., Tolley, K.A., Nicolas, V., Ntie, S., Fluteau, F., Robin, C., Guillocheau, F., Barboni, D., Sepulchre, P.

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The road to recovery: a synthesis of outcomes from ecosystem restoration in tropical and sub-tropical Asian forests por Banin, Lindsay F., Raine, Elizabeth H., Rowland, Lucy M., Chazdon, Robin L., Smith, Stuart W., Binte Rahman, Nur Estya, Butler, Adam, Philipson, Christopher, Applegate, Grahame G., Axelsson, E. Petter, Budiharta, Sugeng, Chin Chua, Siew, Cutler, Mark E.J., Elliott, Stephen, Gemita, Elva, Godoong, Elia, Graham, Laura L.B., Hayward, Robin M., Hector, Andy, Ilstedt, Ulrik, Jensen, Joel, Kasinathan, Srinivasan, Kettle, Christopher J., Lussetti, Daniel, Manohan, Benjapan, Maycock, Colin, Ngo, Kang Min, O'Brien, Michael J., Osuri, Anand M., Reynolds, Glen, Sauwai, Yap, Scheu, Stefan, Silalahi, Mangarah, Slade, Eleanor M., Swinfield, Tom, Wardle, David A., Wheeler, Charlotte, Kok Loong Yeong, Burslem, David F.R.P.

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Africa RISING Tanzania- Simulating Adoption Study por World Agroforestry Centre, University of Dodoma

“…These are: (i) Integrated Soil Fertility Management technologies, (ii) physical and biological barriers for erosion control through adoption of tie ridges locally known as ?…”
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Effects of Intercropping ‘Orange-Fleshed’ Sweetpotato with Onion on the Level of Weevil Damage por Kapalamula, C.

“…A field experiment was carried out in Dedza (Malawi) from April to November 2013 to assess the “effects of intercropping orange-fleshed sweetpotato with onion on the level of weevil damage” with the objectives of developing a biological efficient onion intercropping for orange-fleshed sweetpotato (OFSP) production and determining the agronomic productivity of the intercrop systems. …”
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Substituting fishmeal with napier grass protein: effects on intake, growth performance and carcass characteristics of broiler chickens por Kiggundu, A.M., Nampijja, Z., Kigozi, A., Mugerwa, S., Molly, A., Namazzi, C., Kayondo, S.I., Walugembe, F., Bombom, A.

“…These results suggest that NGP is of low biological value in broiler diets, probably due to its high fiber content and deficiency in methionine and lysine, which are limiting essential amino acids in broiler diets.…”
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Distinction of naive and memory BoCD4 lymphocytes in calves with a monoclonal antibody, CC76, to a restricted determinant of the bovine leukocyte-common antigen, CD45 por Howard, C.J., Sopp, P., Parsons, K.R., McKeever, Declan J., Taracha, E.L.N., Jones, B.V., MacHugh, Niall D., Morrison, W. Ivan

“…A murine IgG1 monoclonal antibody (mAb), CC76, has been produced that, based on findings of the relative molecular mass of polypeptides that it recognized, staining of leukocytes in blood and tissues, and the biological properties of the T lymphocyte subpopulations with which it reacts, is considered to identify an isoform of the leukocyte common antigen (LCA) family of molecules in cattle. …”
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Indigenous livestock husbandry and ethno veterinary practices in Endamohoni District of Tigray Region, Ethiopia por Abraha, F.

“…As most of the medicinal plants are grown in wild, it is very important to promote conservation in ex-situ and in-situ. And further biological studies should be conducted on the reported medicinal plant species of the study area so as to utilize them in drug development.…”
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Biodiversity in a forestagriculture mosaic: the changing face of west Africa rainforests por Norris, K., Asase, A., Collen, B., Gockowski, J., Mason, J., Phalan, B., Wade, A.

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Maize yield and profitability tradeoffs with social, human and environmental performance: is sustainable intensification feasible? por Snapp, Sieglinde S., Grabowski, Philip, Chikowo, Regis, Smith, A., Anders, E., Sirrine, D., Chimonyo, Vimbayi Grace Petrova, Bekunda, Mateete A.

“…Environmental performance of the two pigeonpea-diversified technologies was variable, but generally high compared with sole maize systems, due to gains in vegetative biomass, duration of cover and biological nitrogen (N) fixation. Maize production and economic assessment varied by site, and with steeper tradeoffs for legume diversification in the mesic site, less so in the marginal site. …”
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Soil Phosphatase Activities across a Liming Gradient under Long-Term Managements in Kenya por Margenot, Andrew J., Sommer, Rolf, Parikh, Sanjai J.

“…Liming can impact the enzymatic component of soil P cycling in the short term.We investigated liming in soil mesocosms from 11‐yr managements: no input, mineral N+P, and manure.There were minor or no changes in labile inorganic P, labile organic P, and microbial biomass P.Changes in the activity of different phosphatases following liming depended on management.Liming decreased acid phosphomonoesterase/phosphodiesterase across management systems.Liming can impact the enzymatic component of soil P cycling in the short term.Changes in the biological drivers of soil P cycling could contribute to improving P availability in weathered soils after liming. …”
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