M.P. Mendes results 95
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Cryptobenthic reef fishes may not be safe from invasive lionfish ( Pterois spp. Oken, 1817)NARA Subscribed
Lionfish ( Pterois spp.) are hypothesized to negatively influence cryptobenthic reef fish assemblages through predation. We evaluated these potential effects on Caribbean reefs in Costa Rica and tropical reefs in Brazil. Brazil provided a reference condition for cryptobenthic assemblages prior to lionfish invasion, while the Costa Rica sites enabled comparisons between reefs inside marine protected areas (MPAs), where lionfish...
Actinostella flosculifera (Le Sueur, 1817) is a common species of sea anemone in the tropical Atlantic’s coastal and reef ecosystems, with records ranging from Bermuda Islands to Brazil, and from some areas of the Eastern Atlantic. Actinostella flosculifera exhibits wide morphological variability, mainly in terms of coloration patterns and a range of different sizes. We conducted a morphological and genetic study of this speci...
Biological performance of Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae) on different host plantsNARA Subscribed
The sorghum aphid, Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae), is a significant pest. This study classified the host suitability of seven Poaceae genotypes: commercial and wild sorghum ( S. bicolor , S. sudanense , S. bicolor verticilliflorum ), pearl millet ( Pennisetum glaucum ), and maize ( Zea mays ). Aphid biological performance was assessed via leaf-disc bioassays under controlled conditions (24 ± 2 °C, 60...
Quieting the Storm: Hypoxia as a Strategy to Boost UC-MSC Therapies for Hypoxic-Ischemic Brain Lesions in Neonatal RatsNARA Subscribed
Background Integrating stem cell therapies into clinical settings faces several challenges, particularly in achieving the high cell yields necessary for attaining therapeutic doses. Preconditioning with hypoxic conditions has shown promise in enhancing the mesenchymal stem cells (MSCs)’ reparative capabilities of the central nervous system. Recent evidence suggests that oxygen concentration and exposure duration can shape MSCs...
Leaf herbivory is a ubiquitous ecological interaction that varies significantly in intensity across species, habitats, and biogeographic regions. Although quantification of leaf damage is crucial for understanding many ecological processes, the accuracy and precision of various damage estimation methods used by researchers, including visual estimation, digital image analysis, and artificial intelligence, have not been evaluate...
Variation in the diet composition and weight–length relationship of small characids in urbanized and forested streamsNARA Subscribed
The diet of indicator fish species plays a crucial role in assessing ecosystem health. This study evaluated streams with and without urban influences, focusing on abiotic parameters and the trophic ecology of Psalidodon fasciatus and Piabina argentea . Forested streams exhibited higher redox potential, dissolved oxygen, transparency, and depth, whereas urban streams had higher temperatures, greater widths, and increased levels...
Morphological and ecological approaches in reproduction of the endemic catfish of the eastern AmazonNARA Subscribed
This study aimed to describe reproductive ecology based on morphological aspects of Peckoltia oligospila in stream rapids, eastern Amazon. A total of 186 fish (75 males and 111 females) were collected. The sex and gonadal maturity stage of these specimens were obtained based on histological characteristics of the gonads. The sex ratio, gonado‐somatic index (GSI), relative frequency of the different maturity stages, size at fir...
Key conservation actions for European steppes in the context of the Post-2020 Global Biodiversity FrameworkNARA Subscribed
The Kunming–Montreal Global Biodiversity Framework (KM–GBF) envisions a world living in harmony with nature by 2050, with 23 intermediate targets to be achieved by 2030. However, aligning international policy and national and local implementation of effective actions can be challenging. Using steppe birds, one of the most threatened vertebrate groups in Europe, as a model system, we identified 36 conservation actions for the a...
Climatic niche evolution and speciation modes in the transisthmian Alpheus shrimps (Caridea: Alpheidae)NARA Subscribed
Aim We studied the niche evolution and diversification modes in transisthmian Alpheus shrimps by examining the interplay between environmental niche divergence and conservatism in allopatric sister species. In a broader perspective, the current study analysed the evolution of climatic niche and the role of the environment in species diversification of Alpheus transisthmian shrimp. Location Atlantic and Eastern‐Pacific oceans....