RESUMEN
Crop-pollinator interactions are essential for world food security. Studying crop pollination from a network approach allows identification of target pollinators for conservation and management, and gaps in our knowledge. Solanaceae represents the third highest ranked family based on economic value, and its production is highly improved by animal pollination. This study aimed to integrate global data on solanaceous crop pollination and analyse the interaction patterns using a meta-network approach. Our questions were: (i) how are interactions structured and what are the structuring roles of species; and (ii) what are the main gaps in our knowledge? Data were obtained through a systematic review of the main scientific databases. The network structure was described using connectivity and modularity calculations, and the role of species using centrality metrics. The 251 pollinator species reported were in seven orders, mainly Hymenoptera (84.9%). The generalists Bombus and Apis species were the most common pollinators. The meta-network was modular, and all modules mostly included bees. Most species were peripherals, around 12% were connectors, and there were no module hubs. Apis mellifera was the only network hub (supergeneralist). The most important pollinators are the most managed pollinators worldwide; however, many native species play a role in structuring the meta-network. Main gaps include species of importance to pepper pollination, lack of species-specific identification, and the need for more robust experimental studies evaluating the pollination efficiency of native, manageable bees.
Asunto(s)
Productos Agrícolas , Polinización , Solanaceae , Polinización/fisiología , Animales , Productos Agrícolas/fisiología , Solanaceae/fisiología , Abejas/fisiología , Himenópteros/fisiologíaRESUMEN
Alcohol which, at first, is part of great ceremonies, parties, get-togethers, is now becoming an important issue, for the number of women who consume alcoholic beverages has increased, and consequently the number of pregnant women, considering that not only the mother's body but also the one of the child that is being formed, are under metabolic changes, and inevitably will be a target for acquired alcohol alterations (intake). During the human development, it is important to take into consideration the pregnancy stage and depending on it, the individual becomes susceptible to teratogenic agents. This paper aims at providing some contribution related to this social issue bringing knowledge on the action of alcohol on the fetus alterations, from the slightest (irritability, lack of attention, mobility deficiency) until Fetal Alcoholic Syndrome (F.A.S.) and also tries to analyse the extent of people knowledge on the consequences of alcohol effects over pregnant women bodies and the possible changes that may occur with the fetus. In order to make this study possible, interviews have been made by the use of forms with a population sample of about 100 people living in the northern, western, southern and interior low land regions. We have also visited some public and private institutions (23) on those regions, interviewing nurses in paediatric wards, aiming at identifying the difficulties found related to the diagnosis and management towards F.A.S.