RESUMOCães domésticos (Canis lupus familiaris L., Canidae) têm atuado como espécie exótica perturbando e modificando ecossistemas nativos de diferentes maneiras. Esses animais, estando em ambiente natural, retornam ao estado selvagem passando a ser chamados ferais. A presença destes cães é uma situação grave levando-se em conta a possibilidade de declínio das populações de diversos animais nativos, incluindo a redução das populações de presas para os carnívoros silvestres, e por serem uma via de entrada de muitas doenças contagiosas para os animais nativos. Neste texto será tratado dos impactos de cães ferais em Unidades de Conservação, conflitos socioambientais e formas de controle das populações destes animais. Palavras-chave: Conflitos Socioambientais. Invasão Biológica. Declínio de Espécies. Manejo de Unidades de Conservação. Competição. ABSCTRACT Domestic dogs (Canis lupus familiaris L., Canidae) have acted as exotic species, disrupting and modifying native ecosystems with different ways. When in natural environments, those animals return to an wild state, becoming called feral. The presence of these dogs causes a serious situation, because they bring the possibility of declining many native animals' populations, the reduction of prey populations for wild carnivores as well as a gateway to many contagious diseases to native animals. On this text will be treated the impacts of feral dogs in protected areas, the environmental conflicts, and ways of control those animals' populations.

Coffee seeds rapidly lose viability during storage, which hinders the development of vigorous seedlings for crop establishment. There are reports that seed endosperm is more sensitive to deterioration than embryos, which can be excised and cultivated in vitro. However, a substantial number of plants grown in vitro do not survive during transfer to a greenhouse or field environment. The objective of this study was to evaluate the acclimatization of coffee seedlings of cultivar Catuaí Amarelo IAC 62, developed from zygotic embryos obtained from aged seeds in different substrates and environments, for the production of well-developed seedlings suitable for planting. For this purpose, seedlings were obtained from the in vitro cultivation of embryos obtained from seeds of two quality levels: freshly harvested seeds and artificially aged seeds. Zygotic embryos were extracted from the seeds and cultivated in MS medium. At 60 days, the percentages of normal and abnormal seedlings and dead seeds were evaluated. The good-quality seedlings grown in vitro for 60 days were transplanted into two different substrates (Tropstrato and coconut fiber) and acclimatized in two environments (growth room and greenhouse with a misting system). The plants were evaluated for height, stem diameter, number of leaves, chlorophyll content, and growth rate. The greenhouse environment was better for seedling growth, possibly due to its higher sunlight and temperature. The best substrate was coconut fiber, as it ensured better development of plants from freshly harvested seeds and those from aged seeds. It is possible to develop healthy seedlings from seeds with low viability

Seed deterioration induces the formation of free radicals and proliferation of microorganisms, but the application of external antioxidants may lessen these effects. The aim of this study was to investigate the antioxidant and antimicrobial activity of cathode and anode water on the physiological quality and health of Coffea arabica L. seeds. Part of the seeds were soaked in cathode water and the other part in anode water for periods of 1, 6, 12, 24, and 36 hours. The physiological quality of the seeds was evaluated by the germination test and tetrazolium test, and seed health by the Blotter test. Analysis of variance and Pearson correlation analysis were performed on the data for all the response variables. Soaking in cathode water or anode water up to 24 hours improves the physiological quality of coffee seeds. Anode water has a beneficial effect on the health of coffee seeds, reducing the incidence of Fusarium spp., Penicillium spp., Cladosporium spp., and Alternaria spp. after one hour of soaking and of Aspergillus spp. after six hours. Soaking in cathode water for a period of one hour leads to a reduction in the fungi Aspergillus spp., Fusarium spp., Cladosporium spp., and Alternaria spp., and reduction in Penicillium spp. after six hours.