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Palms species (Arecaceae) are abundant in tropical forests and influence ecosystems in important ways. Moreover, they are a relevant feature in the Atlantic Forest biodiversity hotspot. In this study, we seek to better understand the distribution of palm richness in Rio de Janeiro state, Brazil, with the aim to support conservation decisions and actions. Maps for 15 palm species were generated through species distribution modeling and then stacked into a palm richness map, which was further combined with current land-use and protected area maps to generate a realistic portrayal of the current situation of Arecaceae in the state. Our results revealed an increasing inland-to-coast pattern of richness that matches the biogeographical subdivision of the Atlantic Forest. Considering the land-use information, the palm species potential distribution is drastically reduced, especially for some species which already have a restricted distribution in the state. We also identified the most relevant protected areas for the conservation of palms in the state and those which might have been overlooked in floristic inventories, thus requiring more detailed investigation. Moreover, we point out those species with few points, for which species distribution models could not be built, and argue that they are the ones more likely to be threatened by habitat loss and should be the focus of specimen collection and recording. Finally, we draw attention to a large medium-richness remnant located between two protected areas which probably functions as a connection between them and should be a priority area for conservation.

O Congresso Brasileiro de Agroecologia promove debates que permitem traçar um panorama atual e desenvolver a temática agroecológica no país. Entretanto, pouco se conhece sobre a distribuição dos trabalhos científicos apresentados pelos participantes neste evento, em questão de procedência geográfica e afiliação. O objetivo deste estudo é identificar a partir dos anais de estudos apresentados nos últimos três eventos (em 2015, 2017 e 2019), as localidades e afiliações predominantes dos autores. Nos eventos realizados nos anos de 2015 e 2017 foram apresentados o menor e o maior número de trabalhos científicos, respectivamente. Os estados e regiões sede, de cada um dos eventos, tiveram crescimento no número de estudos em relação aos demais anos. A afiliação às universidades públicas apresentou maior ocorrência nos três eventos. Identificamos que a realização itinerante dos eventos possui alta importância para atração de diferentes participantes, sendo também essencial a realização em locais onde a participação mostrou-se pequena.

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