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Université de Neuchâtel

Tritrophic interactions on cultivated maize and its wild ancestor "teosinte"

De Lange, Elvira Simone ; Turlings, Ted (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2014.

Modern maize plants (Zea mays ssp. mays, Poaceae) are characterized by large cobs that contain juicy grains, although they have not always had these characteristics. Approximately 9000 years ago, maize was domesticated from teosinte (Z. mays ssp. parviglumis), its closest wild ancestor, which produces much less and much smaller seeds. Teosinte still grows in the wild...

Université de Neuchâtel

A method for the stochastic modeling of karstic systems accounting for geophysical data : an example of application in the region of Tulum, Yucatan Peninsula (Mexico)

Vuilleumier, Cécile ; Borghi, Andrea ; Renard, Philippe ; Ottowitz, David ; Schiller, A. ; Supper, Robert ; Cornaton, Fabien

In: Hydrogeology Journal, 2013, vol. 21, no. 9, p. 523-544

The eastern coast of the Yucatan Peninsula, Mexico, contains one of the most developed karst systems in the world. This natural wonder is undergoing increasing pollution threat due to rapid economic development in the region of Tulum, together with a lack of wastewater treatment facilities. A preliminary numerical model has been developed to assess the vulnerability of the resource. Maps of...

Haute école de gestion de Genève

Different experiences of socio-cultural integration : a European merger in Mexico

Lupina-Wegener, Anna A. ; Schneider, Susan C. ; van Dick, Rolf

In: Journal of organizational change management, 2011, vol. 24, no. 1, p. 65-89

Purpose – Building on social identity theory, the purpose of this paper is to present a study on the socio-cultural integration process in amerger of twoEuropean pharmaceutical subsidiaries inMexico. The paper investigates antecedents of perceived threat to pre-merger identities in an officially claimed “merger-of-equals”. Design/methodology/approach – A mixed-methods approach was adopted...

Université de Neuchâtel

Occurrence and direct control potential of parasitoids and predators of the fall armyworm (Lepidoptera: Noctuidae) on maize in the subtropical lowlands of Mexico

Hoballah, Maria Elena ; Degen, Thomas ; Bergvinson, David ; Savidan, Anita ; Tamò, Cristina ; Turlings, Ted C. J.

In: Agricultural and Forest Entomology, 2004, vol. 6, no. 1, p. 83-88

1 Native natural enemies have the potential to control fall armyworm Spodoptera frugiperda (Smith) in tropical maize grown in Mexico, where this insect pest causes severe economic losses to farmers. It has been proposed that enhancing herbivore-induced volatile emissions in maize plants may help to increase the effectiveness of natural enemies, which use these volatiles to locate...