Wild insect diversity increases inter-annual stability in global crop pollinator communities.

While an increasing number of studies indicate that the range, diversity and abundance of many wild pollinators has declined, the global area of pollinator-dependent crops has significantly increased over the last few decades. Crop pollination studies to date have mainly focused on either identifying different guilds pollinating various crops, or on factors driving spatial changes and turnover observed in these communities. The mechanisms driving temporal stability for ecosystem functioning and services, however, remain poorly understood. Our study quantifies temporal variability observed in crop pollinators in 21 different crops across multiple years at a global scale. Using data from 43 studies from six continents, we show that (i) higher pollinator diversity confers greater inter-annual stability in pollinator communities, (ii) temporal variation observed in pollinator abundance is primarily driven by the three-most dominant species, and (iii) crops in tropical regions demonstrate higher inter-annual variability in pollinator species richness than crops in temperate regions. We highlight the importance of recognizing wild pollinator diversity in agricultural landscapes to stabilize pollinator persistence across years to protect both biodiversity and crop pollination services. Short-term agricultural management practices aimed at dominant species for stabilizing pollination services need to be considered alongside longer term conservation goals focussed on maintaining and facilitating biodiversity to confer ecological stability.

Ocorrência de anemia em idosos atendidos na Estratégia da Saúde da Família em Aparecida de Goiânia, Goiás / Occurrence of anemia in elderly serverd by the Family Health Strategy in Aparecida de Goiânia, Goiás

Objetivo: Avaliar a ocorrência de anemia e presença de enteroparasitos relacionados a condições socioeconômicas e demográficas em idosos atendidos na Estratégia Saúde da Família (ESF) no município de Aparecida de Goiânia, Goiás, Brasil. Métodos: Trata-se de um estudo transversal, realizado com idosos atendidos na ESF do município de Aparecida de Goiânia. Foram coletadas fezes frescas e recém-eliminadas, as quais foram processadas pela técnica de Hoffman, Pons e Janer de 24 horas e coletadas amostras de sangue analisadas no aparelho automatizado Pentra 60®. Realizou-se análise estatística pelo programa BioEstat® versão 5.1 com medidas de associação odds ratio entre a presença de parasitos com a anemia, e as variáveis pesquisadas com o intervalo de confiança de 95% (IC 95%) e nível de significância de 5% (p < 0,05). Resultados: Foram avaliados os materiais biológicos de 101 idosos, e, destes, 15 (14,8%) apresentaram anemia. O estado civil, sexo, renda familiar, número de pessoas em casa, ocupação, consumo de frutas, verduras e legumes e hábitos comportamentais não apresentaram significância em relação à anemia. As variáveis com associação significativa (p<0,005) foram: nível baixo de escolaridade (p=0,05) e sedentarismo com consumo de álcool e/ou tabaco (p=0,05). Na análise das fezes encontrou-se positividade em uma amostra com presença de ovo de Ascaris lumbricoides. Conclusão: Os dados sobre a ocorrência de anemia podem variar bastante, dependendo da região e população estudada. O presente estudo demonstrou os fatores socioeconômicos e geográficos associados e baixa ocorrência de anemia e associação com parasitoses. A anemia não deve ser uma condição negligenciada durante o envelhecimento, portanto merece atenção e tratamento adequado.

Objective: To evaluate the occurrence of anemia and presence of enteroparasites related to socioeconomic and demographic conditions in the elderly attending the Family Health Strategy (FHS) in the municipality of Aparecida de Goiânia, Goiás, Brazil. Methods: This is a cross-sectional study, conducted with elderly people attended at the FHS of Aparecida de Goiânia. Fresh, newly disposed stools were collected and processed by the 24-hour Hoffman, Pons, and Janer technique and blood samples were collected on the Pentra 60® automated device. Statistical analysis was performed using the BioEstat® version 5.1 program, with odds ratios, between the presence of parasites with the anemia and variables surveyed with the 95% confidence interval (95% CI) and level. significance level of 5% (p <0.05). Results: The biological materials of 101 elderly individuals were evaluated, of which 15 (14.8%) presented anemia. Marital status, gender, family income, number of people at home, occupation, consumption of fruits, vegetables and behavioral habits were not significant in relation to anemia. The variables with significant association (p <0.005) were: low level of education (p = 0.05) and physical inactivity with alcohol and / or tobacco consumption (p = 0.05). In the analysis of feces was found positivity in one sample, presence of egg Ascaris lumbricoides. Conclusion: Data on the occurrence of anemia may vary widely, depending on the region and population studied. We demonstrated the associated socioeconomic and geographic factors and low occurrence of anemia and association with parasites. Anemia should not be a neglected condition during aging, so it deserves proper attention and treatment.