Lampronycteris brachyotis is known to occur at 12 localities in 11 Brazilian states, encompassing the Amazon, Caatinga, Cerrado, and Atlantic Forest biomes. Here, we report the capture of two specimens in gallery forests within the Cerrado of the state of Mato Grosso. These records expand the known range of L. brachyotis into the Brazilian Midwest.
Fungal bioremediation stands out as an effective method for reclaiming soils tainted with pollutants. Leveraging patent registrations and scholarly publications has proven instrumental in advancing this promising technology. This study aimed to evaluate the technological trajectories in fungal bioremediation of chemically contaminated soils and to explore the evolution of patented biotechnologies within this domain. The research employed patent mapping, scrutinizing patents sourced from Orbit Intelligence, complemented by extensive bibliographic exploration. Subsequently, qualitative and quantitative methodologies were employed to dissect academic and technological trends. The findings underscored the efficacy, cost-effectiveness, and environmental friendliness of soil bioremediation utilizing fungi. Particularly, genera like Trichoderma and Aspergillus exhibited notable bioremediation capabilities, owing to their proficiency in degrading diverse chemical compounds. However, the strategies underlying fungal degradation of contaminants remain inadequately elucidated, indicating a gap in technological innovation. Despite significant advancements in this field over recent decades, certain aspects warrant further development. Notably, China and the USA emerged as the leading nations in patent applications, whereas Brazil, despite its considerable biotechnological potential, displayed relatively low patent and publication rates. Ultimately, these findings hold promise for the advancement of technological solutions to address contemporary soil contamination challeng.
Understanding the effects of habitat loss on communities is essential for biodiversity conservation and maintenance of ecosystem services. Considering that bats are efficient consumers of arthropods, including insects of economic interest, knowledge on how local and landscape factors influence bat assemblages may provide the basis for enhancement of key ecosystem functions, such as natural control for arthropods. Based on the species richness (total and insectivorous) and on the defaunation index (DI), defined as the loss or depletion of an animal species attribute, we investigated how the landscape can influence patterns of leaf-nosed bats and their potential of arthropod consumption in the Brazilian Atlantic Forest. We calculated species richness and DI using a compilation of bat records in the Atlantic Forest over 20 years (focal assemblages) and IUCN's potential occurrence polygons (reference assemblages used in DI). We quantified the vegetation cover, the dominant type and the heterogeneity of the matrix within circular landscapes around each sampling site of focal assemblages. One hundred and four assemblages were included in the analyses, most of them in the southeast of the Atlantic Forest, with agriculture as the dominant non-natural matrix. We found a negative effect of matrix heterogeneity on DI, and a positive effect of forest cover on the richness of insectivorous bats. The results highlight the importance of forest remnants in fragmented landscapes in the Brazilian Atlantic Forest for the maintenance of leaf-nosed bats and their potential for arthropod consumption.
1 March 2024 in Cuadernos de Educación y Desarrollo
O presente estudo teve como objetivo descrever a estrutura de comunidade de morcegos em dois ambientes de um ecótono savânico: mata de galeria e vereda. Com um esforço amostral de 12960 h.m2 em três cachoeiras, que apresentam dois ambientes muito próximos, foram capturados 261 morcegos pertencentes a 17 espécies e duas famílias. Uma das espécies foi registrada pela primeira vez no centro oeste do Brasil. O teste Tstudent revelou diferença significativa entre as abundâncias encontradas nas áreas (p < 0.01, t = 3.34, gl = 33). As matas de galeria apresentaram 16 espécies e 187 capturas, sendo 10 espécies exclusivas. Nas veredas foram capturados 74 indivíduos, pertencendo a sete espécies, sendo uma exclusiva. Foram registradas 89 % e 88 % das espécies nas matas de galeria e vereda, respectivamente, segundo o estimador de riqueza Jackknife (Mata de galeria: Jack 1 = 22.22 ± 5.11; Vereda: Jack 1 = 7.89 ± 2.05). O índice de diversidade ficou em torno do esperado, H’ = 1.95, sendo maior na mata de galeria (Mata de galeria - H’ = 1.91; Vereda – H’ = 1,68). O estudo revelou que ambientes próximos abrigam espécies diferentes, provavelmente em função da sua complexidade. Comunidades de morcegos em savanas tropicais se aproximam do modelo da Teoria de Nicho Ecológico, onde ambientes diferentes apresentam composições diferentes em função de suas particularidades.
16 November 2025 in Agriculture, Ecosystems & Environment