Lundiana: International Journal of Biodiversity https://periodicos.ufmg.br/index.php/lundiana <p style="margin-top: 0.1cm; margin-bottom: 0.1cm; line-height: 150%; background: transparent;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span lang="pt-PT">Lundiana é uma revista de acesso aberto com revisão por pares que publica artigos a respeito de todos os aspectos da biodiversidade em um modelo de publicação contínua (na medida em que os artigos vão sendo editados, sem o atraso causado pela espera por fechar volumes). Lundiana aceita artigos taxonômicos, especialmente com a descrição de novos táxons e espécies, de biologia da conservação, ecologia, filogenia, filogeografia, estudos a respeito da diversidade genética de espécies nativas ou introduzidas, educação, divulgação científica e história da ciência a respeito da biodiversiade. Lundiana também espera ser um canal para opiniões da comunidade científica e da população em geral em políticas a respeito da biodiversidade.</span> </span></span></p> pt-BR apepato@icb.ufmg.br (Almir R. Pepato) portalperiodicos@prpq.ufmg.br (Portal de Periódicos:) Seg, 01 Fev 2016 00:00:00 -0200 OJS 3.1.2.4 http://blogs.law.harvard.edu/tech/rss 60 Leveduras adaptadas ao frio da Patagônia https://periodicos.ufmg.br/index.php/lundiana/article/view/23847 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">The Patagonian Andes possess a great variety of glaciers, large temperate ice masses, and glacially formed water bodies. Most of these environments are included in protected areas characterized by low anthropogenic impact and minimal atmospheric pollution. Studies on occurrence of psychrotolerant (cold-adapted) and psychrophilic yeasts in these natural environments have allowed the characterization of native cold-adapted yeast communities, the description of six novel species, as well as description of the capability of these yeasts to produce extracellular enzymes, and other metabolites (carotenoids and mycosporines). Cold-adapted yeasts from Patagonian glaciers were able to hydrolyze natural polymers (casein, lipids, starch, pectin and carboxymethylcellulose) at low temperatures and some were able to produce photo-protective compounds. These results suggest a significant ecological role of these organisms as organic matter decomposers and nutrient cyclers, also reveal that some of these yeasts could be used for further metabolic, ecological and biotechnological studies. The objective of this review is to summarize all the findings related to cold adapted yeasts from glacial environments of the South Hemisphere (outside Antarctica), also to highlight the importance of continental ice masses from the microbiological perspective.</span></span></p> <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%; text-decoration: none;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Keywords: yeasts, psychrophilic, glaciers, extracellular enzymes. </span></span></p> Virginia de Garcia, Maria Rosa van Broock Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23847 Seg, 01 Fev 2016 00:00:00 -0200 Atração inesperada de Urostreptus sp. (Spirostreptidae) pelos elaiossomas de sementes: um novo registro de recurso para a dieta de milípedes https://periodicos.ufmg.br/index.php/lundiana/article/view/23848 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">We describe, for the first time, the attraction of an unidentified millipede species (<em>Urostreptus </em><span style="font-style: normal;">sp.) to an elaiosomes of a Euphorbiaceae species (</span><em>Jatropha mutabilis </em><span style="font-style: normal;">(Pohl) Baill.). After field observations of </span><em>Urostreptus </em><span style="font-style: normal;">specimens feeding on elaiosomes’ seeds of </span><em>J. mutabilis </em><span style="font-style: normal;">in areas of Caatinga in Petrolina, northeast Brazil, we conducted experiments to test the hypothesis that this millipede is specifically attracted to </span><em>J. mutabilis </em><span style="font-style: normal;">elaiosomes. In the first experiment, millipedes were offered a choice between pairs of seeds with and without elaiosomes. In each trial we recorded the animal choice and the time required to access the seed. In the second experiment, millipedes were offered a choice between pairs of pebbles similar in size to the seeds, one of which was soaked in elaiosome extract. The results showed that millipedes significantly preferred seeds with elaiosomes and were all attracted to pebbles soaked in the elaiosome extract. We also speculate some of the potential implications for seed dispersal and seedlings distribution.</span></span></span></p> <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span style="text-decoration: none;"><span style="font-style: normal;">Keywords: Brazil; Caatinga; Diplopoda; elaiosome-bearing seed; Euphorbiaceae.</span></span></span></span></p> Samuel C. Ribeiro, Vanessa G. N. Gomes, Elivania C. Barral, Marcos V. Meiado, Inara R. Leal, José A. Siqueira Filho, Geraldo Wilson Fernandes Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23848 Seg, 01 Fev 2016 00:00:00 -0200 A comunidade de insetos indutores de galhas associados a Baccharis concinna (Asteraceae): o papel da taxa de crescimento de brotos e das variações sazonais https://periodicos.ufmg.br/index.php/lundiana/article/view/23851 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Resource allocation patterns have been extensively studied on the dioecious shrub <em>Baccharis concinna </em><span style="font-style: normal;">Barroso (Asteraceae) in rupestrian grasslands in Brazil. Female plants have longer apical shoots, more flowers per shoot, and greater leaf, flower and stem biomass on apical shoots while male plants have longer lateral shoots. Otherwise, no differences were observed in total biomass of vegetative parts between male and female plants. We further investigated the relationship between lateral shoot growth rates and the richness and abundance of galling-insect species on this host plant. Male plants had longer lateral shoots due to greater growth rates throughout the year. On the other hand, galling-insect richness and abundance did not differ between male and female plants throughout the year. Gall-inducing insects showed greater richness and abundance in the drier months of the year while lateral shoot growth rates were greater during the rainy season. In conclusion, male plants allocated more resources to the growth of lateral shoots when compared to female plants, but this differential growth did not reflect on male plants being more attacked by galling-insects.</span></span></span></p> <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span style="text-decoration: none;"><span style="font-style: normal;"><strong>Keywords: </strong></span></span><span style="text-decoration: none;"><span style="font-style: normal;">insect galls, insect herbivory, growth rates, plant dioecy, resource allocation, rupestrian grasslands, Serra do Cipó. </span></span></span></span></p> Evelyn S. A. Marques, Geraldo Wilson Fernandes Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23851 Seg, 01 Fev 2016 00:00:00 -0200 Facilitação subjacente ao sucesso do bagre exótico Hoplosternum littorale (Callichthyidae) em lagos da bacia do Médio Rio Doce, sudeste do Brasil https://periodicos.ufmg.br/index.php/lundiana/article/view/23852 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Facilitation is defined as an interaction between two or more species, which benefits at least one of them and causes harm to neither. The establishment of non-native species in new areas is a global phenomenon that raises the question of how facilitation may help in successful biological invasions. We describe a possible facilitation process between the catfish <em>Hoplosternum littorale </em><span style="font-style: normal;">(Tamboatá) and its predators: </span><em>Pygocentrus nattereri </em><span style="font-style: normal;">(</span><em>piranha</em><span style="font-style: normal;">) and </span><em>Cichla </em><span style="font-style: normal;">cf </span><em>kelberi </em><span style="font-style: normal;">(</span><em>tucunaré</em><span style="font-style: normal;">), all non-native fish that live in the lakes of the Middle Doce River Basin, southeastern Brazil. We found evidence of indirect facilitation, where non-native predators probably release </span><em>H. littorale </em><span style="font-style: normal;">from competition, as they prefer to prey on native fish. Our main evidence in favor of this interpretation was a difference in the abundance of </span><em>H. littorale </em><span style="font-style: normal;">between lakes where these species co-occur and lakes where </span><em>H. littorale </em><span style="font-style: normal;">is the only non-native fish species. This difference was not associated with environmental differences between lakes or spatial segregation of age classes of </span><em>H. littorale</em><span style="font-style: normal;">. Differences in peak activity among </span><em>H. littorale </em><span style="font-style: normal;">and non-native predators are probably the main driver of co-occurrence.</span></span></span></p> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 100%; text-decoration: none;" align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Keywords: biological invasion, tropical lakes, fish, non-native species.</span></span></p> Dilermando Pereira Lima Jr., Anderson Oliveira Latini Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23852 Morfometria de Catagonus stenocephalus (Lund in Reinhardt 1880) (Artiodactyla: Tayassuidae) e consideraçãoes taxonomicas a respeito do gênero Catagonus Ameghino 1904 https://periodicos.ufmg.br/index.php/lundiana/article/view/23853 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Factors such as the discordance on the choice of characters by different authors and the fragmentary condition of the majority of fossils are responsible for many issues on the taxonomy of the South American Tayassuidae. The extinct Tayassuidae species <em>Catagonus stenocephalus </em><span style="font-style: normal;">(Lund in Reinhardt 1880) presents a confuse nomenclatural history and a questionable genus designation. The morphometric analysis performed in this study, based on craniomandibular and dental characters, allowed to distinguished three groups morphologically distant from each other within the </span><em>Catagonus </em><span style="font-style: normal;">genus. This result highlights the need for more precise phylogenetic analysis for the definition of taxonomic groups in the South American Tayassuidae.</span></span></span></p> <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span style="text-decoration: none;"><span style="font-style: normal;">Keywords: </span></span><span style="text-decoration: none;"><em>Catagonus stenocephalus</em></span><span style="text-decoration: none;"><span style="font-style: normal;">, morphometric analysis, Quaternary, taxonomy.</span></span></span></span></p> Rafaela Velloso Missagia, Rodrigo Parisi-Dutra, Mario Alberto Cozzuol Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23853 Leptodactylus chaquensis (Anura, Leptodactylidae) como predador de Pseudis platensis (Anura, Hylidae) no sul do Brasil https://periodicos.ufmg.br/index.php/lundiana/article/view/23854 <p style="margin-bottom: 0cm; font-weight: normal; line-height: 100%;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Frogs from the Family Leptodactylidae are among the most important opportunistic feeders on other anuran species. Here we report a case of predation of <em>Pseudis platensis </em><span style="font-style: normal;">by the Cei’s white-lipped frog </span><em>Leptodactylus chaquensis </em><span style="font-style: normal;">in breeding habitat from agricultural landscape, southern Brazil.</span></span></span></p> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 100%; text-decoration: none;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Keywords: aquatic frog, breeding season, opportunistic predation, prey, terrestrial frog.</span></span></p> Fabrício Hiroiuki Oda, Priscilla Guedes Gambale, Vinicius Guerra Batista Copyright (c) https://periodicos.ufmg.br/index.php/lundiana/article/view/23854