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Biological parameters of Rhipicephalus linnaei determined using rabbits as experimental hosts under laboratory conditionsNARA Subscribed
Rhipicephalus linnaei is a tick widely associated with domestic dogs and is of recognized veterinary and public health importance. However, the recent taxonomic delimitation of this species, previously included within the Rhipicephalus sanguineus sensu lato complex, has made the production of species-specific biological data necessary. Therefore, this study aimed to characterize the life cycle parameters and reproductive perfo...
Optimizing maize–Brachiaria intercropping requires effective weed management with selective maize herbicides. This study evaluated the spray performance and efficacy of atrazine + nicosulfuron for weed management in maize–Brachiaria intercropping, focusing on how droplet classes and spray volumes affect maize growth and yield. The deposition experiment was conducted in a greenhouse in a completely randomized design with six re...
We report the first complete nucleotide sequence of an isolate of iris yellow spot virus (IYSV; Orthotospovirus iridimaculaflavi ) from Brazil. Isolate Br-25 was collected in 2025 in Imbuia, Santa Catarina, from symptomatic onion scapes. The genome of IYSV-Br-25 consisted of L, M and S genomic RNAs of 8879, 4866 and 3223 nt, respectively. Comparison of the L segment nucleotide (nt) sequence showed identities ~96% to most of th...
Forest-grassland mosaics structure fruit-feeding butterfly assemblages in the Pampa biomeNARA Subscribed
Forest-grassland mosaics are phytophysiognomies of grassland and forest ecosystems that create strong environmental contrasts, influencing species distribution in biomes like the Pampa of Southern Brazil. Our study analyses the structure of fruit-feeding butterfly (Nymphalidae) assemblages across natural mosaics of native grasslands and forest fragments in the Pampa biome in relation to butterfly abundance, species richness an...
The aim of this study was to evaluate the effect of xylanase addition (1.8 g/kg dry matter [DM]) to tropical grass haylage used in total mixed rations (TMR) on in vitro organic matter degradability, ruminal fermentation kinetics, and methane (CH4) emission. A completely randomized design was adopted in a 4 × 2 factorial arrangement, corresponding to four tropical grass cultivars (Andropogon, Mombaça, Massai, and Marandu) with...
Land use around protected areas affects functional diversity of anuran assemblages in ponds of Southern Brazilian Highland GrasslandsNARA Subscribed
Anthropogenic land-use change drives biodiversity loss by altering habitat structure, reducing connectivity, and reshaping ecological processes, even within protected areas. Although protected areas are key for biodiversity conservation, their effectiveness may depend on the surrounding landscape context. This study evaluates the effects of land use around and within protected areas on species richness and functional diversity...
Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species by assessing the vulnerability of 256 marine megafauna species to 23 at‐sea threat...
The biggest landslide event in Brazil: preliminary analysis of the Rio Grande do Sul mega disaster in May 2024NARA Subscribed
An unprecedented precipitation event in Rio Grande do Sul, Brazil, between April and May 2024 caused widespread floods and landslides. This extreme event impacted 96% of the state’s municipalities, affecting approximately 2.4 million people and resulting in 183 deaths. This article reports the magnitude of this extreme event, focusing on the preliminary results of a comprehensive landslide inventory. Our analysis revealed that...
The effects of agroforestry and conventional banana plantations on multiple dimensions of butterfly diversity in the Atlantic ForestNARA Subscribed
Environmental changes, particularly in agriculture, contribute significantly to biodiversity loss, with habitat fragmentation hindering dispersal and reducing biological diversity. Specific land uses can confine evolutionary groups to certain areas, decreasing local genetic and phylogenetic diversity but potentially increasing them at a larger spatial scale. Utilising genetic information at the population level, along with ric...
Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM coverage to gauge its potential as a global research and monitoring tool. To address this...