Modeling Producer Responses with Dynamic Programming: A Case for Adaptive Crop Management
Past research found agricultural producers’ conditional responses during the growing season are important adaptations to weather and other stochastic events. Failing to recognize these responses overstates the risks confronting producers and...
Identification of strategies to improve goat marketing in the lowlands of Ethiopia: a hedonic price analysis
This article aims at identifying factors that determine market prices of goats and analyse potential mechanisms by which smallholder goat producers could maximize their benefits. Data on 357 farm households and 2103 goat transactions were...
Revision of the taxonomic status of Rhodanthidium sticticum ordonezi (Dusmet, 1915), an anthidiine bee endemic to Morocco (Apoidea: Anthidiini)
Rhodanthidium ordonezi (Dusmet, 1815) is recognized here as a valid species endemic to central and southern Morocco. It has previously been regarded as a subspecies of R. sticticum (Fabricius). The two taxa are in allopatry throughout most of...
Chromatic exclusivity hypothesis and the physical basis of floral color
This paper presents the results of floral spectral studies on 1275 flowers from India, Brazil, Israel, Germany, and Norway. Floral spectral reflectance from 400 to 700 nm (nm) was used to quantitatively represent ‘human-perceived’ color of...
Les interactions entre les parasites (Toxoplasma gondii et Haemonchus contortus) et la fonction de reproduction chez les ovins
The reproductive function is affected by several environmental constraints including health problems. In small ruminants, the interaction between parasite infestations and infections and reproductive function has been little studied. The...
Occurrence of Septoria tritici blotch (Zymoseptoria tritici) disease on durum wheat, triticale, and bread wheat in Northern Tunisia
Wheat (Triticum aestivum L.) is the most important cereal crop in Tunisia, nonetheless production is highly affected by drought and diseases mainly Septoria tritici blotch (STB) caused by Zymoseptoria tritici (Roberge ex Desm.) Quaedvl. & Crous...
The Maghreb (North Africa) rangelands evolution over forty years: re-greening or degradation
The Sahel region is subject of several controversies over the current trends of its ecosystems. Some consider that despite the rain recovery, this region remains in a regressive dynamics, while others consider that they are in re-greening...
Farmers’ adoption of sulla (Hedysarum coronarium L.) cultivation as an alternative livestock feed
The objective of this study was to investigate farmers' adoption of sulla (Hedysarum coronarium L.) cultivation in northern Tunisia. Sulla adoption at farmer level and farmers‟ perception about the role of sulla were investigated through a...
Elaboration of Livestock R&D Scenarios and Assessment of the Impact of Alternative Investment Scenarios on Employment Generation: A Methodological Framework
As agriculture is the largest employment sector in Sub-Saharan Africa, and as the average contribution of agriculture to GDP is more than 17% (OECD/FAO, 2016; World Bank, 2017), the agricultural employment growth can be a driving force of...
