Resultados de búsqueda - "systematics"

Neotropical savannas: prospects for economically and ecologically sustainable crop-livestock production systems por Spain, James M.

“…The genetic diversity of savanna ecosystems has already proven to be very valuable yet there is almost no systematic inventory nor estimate of potential value of the germplasm present in most savanna regions. …”
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Using participatory research and gender analysis in natural resource management por Johnson, Nancy L., Lilja, Nina, Ashby, Jacqueline A.

“…There has been little systematic analysis of how participatory research (PR) methods and gender/stakeholder analysis (GSA) are being used in NRM research. 1 This study begins to fill the gap by providing a comparative analysis of over 60 participatory NRM research projects compiled by the Systemwide Program on Participatory Research and Gender Analysis (PRGA). …”
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Global tree cover and biomass carbon on agricultural land: The contribution of agroforestry to global and national carbon budgets por Zomer, Robert J., Neufeldt, Henry, Xu, Jianchu, Ahrends, Antje, Bossio, Deborah A., Trabucco, Antonio, Noordwijk, Meine van, Wang, Mingcheng

“…Agroforestry systems and tree cover on agricultural land make an important contribution to climate change mitigation, but are not systematically accounted for in either global carbon budgets or national carbon accounting. …”
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Lentil (Lens culinaris Medik.) nodulates with genotypically and phenotypically diverse rhizobia in Ethiopian soils por Tena, W., Woldemeskel, Endalkachew, Degefu, T., Walley, F.

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Joining smallholder farmers’ traditional knowledge with metric traits to select better varieties of Ethiopian wheat por Mancini, C., Mengistu, D.K., Pè, M.E., Fadda, Carlo, Dell'Acqua, M., Melfa and Workaye Farmer Community, Kidane, Yosef Gebrehawaryat

“…Metric measurements of ten agronomic traits were simultaneously collected, allowing to systematically break down farmers’ preferences on quantitative phenotypes. …”
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The gender gap between water management and water users: evidence from Southwest Bangladesh por Buisson, Marie-Charlotte, Curnow, Jayne, Naz, F.

“…However, when considering women's inclusion in community water management and more specifically in Water Management Organizations (WMOs), we demonstrate that women face diverse forms of social barriers resulting in systematic exclusion and self-exclusion from these institutions. …”
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Evolution of quality standards in plant cryobanks - The International Potato Center as a case study por Vollmer, R., Ellis, David, Barkley, N.A.

“…Full plant recovery (+LN) as standard parameter for regrowth assessment, a large-scale applicable cryo-protocol (high success rate), systematic viability reassessment, clear threshold of minimum acceptable regrowth (30%: one single cryo-run, 20-30%: two independent cryo-runs, <20%: accession was discarded and not transferred to the cryobank), a high sample size (20%) for initial regrowth assessment, safety back-up of cryobanked accessions, performance indicators of the cryo-staff, and a continuous electronical monitoring of the correct temperature within the cryotanks are other important features of the system. …”
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Trees for life: The ecosystem service contribution of trees to food production and livelihoods in the tropics por Reed, J.D., Vianen, J. van, Foli, S., Clendenning, J., Yang, K., MacDonald, M., Petrokofsky, G., Padoch, Christine, Sunderland, Terry C.H.

“…This review synthesizes the current evidence base examining the contribution of forest and trees to agricultural production and livelihoods in the tropics, where production often occurs within complex land use mosaics that are increasingly subjected to concomitant climatic and anthropogenic pressures. Using systematic review methodology we found 74 studies investigating the effect of forest or tree-based ecosystem service provision on a range of outcomes such as crop yield, biomass, soil fertility, and income. …”
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Identification and distribution of microsymbionts associated with soybean nodulation in Mozambican soils por Gyogluu, C., Jaiswal, S.K., Boahen, S., Dakora, F.D.

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SaPI mutations affecting replication and transfer and enabling autonomous replication in the absence of helper phage por Ubeda, Carles, Maiques, Elisa, Barry, Peter, Matthews, Avery, Tormo-Mas, María A., Lasa, Inigo, Novick, Richard P., Penadés, José R.

“…They generally contain 18-22 ORFs. We have systematically inactivated each of these ORFs and determined their functional groupings. …”
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Does host adaptation of Tetranychus urticae populations in clementine orchards with a Festuca arundinacea cover contribute to a better natural regulation of this pest mite? por Aguilar-Fenollosa, Ernestina, Pina, Tatiana, Gómez-Martínez, María A., Hurtado-Ruiz, Mónica A., Jaques, Josep A.

“…Because local adaptation implies mean deme fitness to be systematically higher for the sympatric deme x habitat combinations than for the allopatric ones, these results can be taken as indicative of occurrence of local adaptation in T. urticae. …”
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Good data are not enough: Understanding limited information use for climate risk and food security management in Guatemala. por Girón, Estuardo, y 7 autores más

“…But the impact of agro-climatic and food security information on decisions is ad hoc or not systematic. Through a mix of qualitative, ethnographic, and participatory methods, we investigated why this situation occurs. …”
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Nanoplastic transport in soils by advection and bioturbation por Heinze, Wiebke Mareile

“…The bioturbation model systematically underestimated nanoplastics in the lower layers, indicating that further differentiation of the transport modes by soil biota might be necessary. …”

Djur inom vården por Svensson, Regina

“…Therapy with animals involves that animals are used in a systematic way, in a person's process of treatment. …”
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The impact of participatory forest management on Miombo woodland tree species diversity and local livelihoods : a case study of Bereku Miombo woodland, Babati District, Tanzania por Lupala, Zacharia John

“…While ecological data was collected by systematic sampling using transects of circular plots with different radius. …”
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Förbättringsarbete och avvikelsehantering för ökad tjänstekvalitet hos SCA Skog AB Jämtlands skogsförvaltning por Andersson, Maria

“…The purpose of the study was to identify a practical and systematic method to handle deviations and suggestions for improvements to achieve a higher customer satisfaction. …”

Determinants for smallholder farmers’ adoption of improved forages in dairy production systems: The case of Tanga region, Tanzania por Tim Ndah, Hycenth, Schuler, Johannes, Nkwain, Vandoline N., Nzogela, Beatus, Mangesho, Walter E., Mollel, Richard, Loina, Rose, Zander, Peter, Paul, Birthe K.

“…By applying a qualitative mixed-method approach, including farm visits, interviews and a multi-stakeholder workshop guided by the Qualitative Assessment Tool for Forage Technologies (QATo-FT), we systematically identify and analyse the roles of the (i) institutional and political, (ii) socio-economic and (iii) cultural factors influencing the adoption and diffusion of improved forage technologies. …”
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Consistent diel activity patterns of forest mammals among tropical regions por Vallejo-Vargas, A.F., Sheil, D., Semper-Pascual, A., Beaudrot, L., Ahumada, Jorge A., Akampurira, E., Bitariho, R., Espinosa, S., Estienne, V., Jansen, P.A., Kayijamahe, C., Martin, E.H., Lima, M.G.M., Mugerwa, B., Rovero, F., Salvador, J., Santos, F., Spironello, W.R., Uzabaho, E., Bischof, R.

“…Here we examine whether community-level activity patterns differ among biogeographic regions, and explore the roles of top-down versus bottom-up processes and thermoregulatory constraints. Using data from systematic camera-trap networks in 16 protected forests across the tropics, we examine the relationships of mammals’ diel activity to body mass and trophic guild. …”
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Digital tools and agricultural market transformation in Africa: Why are they not at scale yet, and what will it take to get there? por Abate, Gashaw T., Abay, Kibrom A., Chamberlin, Jordan, Kassim, Yumna, Spielman, David J., Tabe-Ojong, Martin Paul

“…In particular, there is a need for more systematic assessments of both successes and failures at both the piloting and scaling stages.…”
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Cascades of tipping in impacts por Juhola, Sirkku, Rocha, Juan, Sillmann, Jana, Basel, Ashleigh, Constantino, Sara M., Craparo, Alessandro C. W., Cumming, Graeme S., Donges, Jonathan F., Filatova, Tatiana, Malmström, Alexandra, Mithal, Vidur, Scheffran, Jürgen, Tuhkanen, Heidi, Watson, Tabitha

“…Further research steps include development of conceptual understanding of causal chains and feedbacks, as well as systematic accumulation of the empirical evidence base over temporal and across spatial scales. …”
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