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Dec 6, 2024 | 
academic.oup.com | Conservação e Biodiversidade |Instituto de Biologia |Departamento de Ecología |Rogério V S
Floral adaptations supposedly favour pollen grains to cross the numerous barriers faced during their journey to stigmas. Stamen dimorphism and specialized petals, like the cucculus in the Cassieae tribe (Fabaceae), are commonly observed in flowers that offer only pollen as a resource for bee pollinators. Here, we experimentally investigated whether the stamen dimorphism and cucculus enhance pollen placement on the bee’s body.
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Jul 18, 2024 | 
onlinelibrary.wiley.com | Departamento de Ecología |Instituto de Biologia |Cidade Universitária |Bruno B. Althoff
REFERENCES , & (1983). Handbook of tropical aquarium fishes (p. 718). T.F.H. Publications. , , , , , & (2018). Effect of flood pulses on the trophic ecology of four piscivorous fishes from the eastern Amazon. Journal of Fish Biology, 93(1), 30–39. , , & (2008). Life-history of the south American darter, Characidium pterostictum (Chrenuchidae): Evidence for small scale spatial variation in a piedmont stream. Neotropical Ichthyology, 6, 591–598. , , , , & (2015).
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Jul 15, 2024 | 
onlinelibrary.wiley.com | Instituto de Biologia |João Pedro Souza-Alves |Departamento de Zoología |Laboratorio de Ecología
CONFLICT OF INTEREST STATEMENT The authors declare no conflict of interest. Supporting Information Filename Description ajp23665-sup-0001-Supporting_Information.docx415.3 KB Supporting information. REFERENCES (1974). Observational study of behavior: Sampling methods. Behaviour, 49, 227–266. https://doi.org/10.1163/156853974x00534 , & (2010). Seed dispersal patterns in two closely related howler monkey species (Alouatta palliata and A.
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May 21, 2024 | 
academic.oup.com | Nogueira do Amaral |Instituto de Biologia |Departamento de Fisiología |Instituto de Fisiología
Plants synchronize their growth and development with environmental changes, which is critical for their survival. Among their life cycle transitions, seed germination is key for ensuring the survival and optimal growth of the next generation. However, even under favorable conditions, oftentimes germination can be blocked by seed dormancy, a regulatory multilayered checkpoint integrating internal and external signals.
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Apr 27, 2024 | 
academic.oup.com | Instituto de Biologia |Ciudad Universitaria |Facultad de Biología |Universidad Veracruzana
The size and shape of reproductive structures is especially relevant in evolution because these characters are directly related to the capacity of pollination and seed dispersal, a process that plays a basic role in evolutionary patterns. The evolutionary trajectories of reproductive phenotypes in gymnosperms have received special attention in terms of pollination and innovations related to the emergence of the Spermatophytes.
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Apr 12, 2024 | 
link.springer.com | Instituto de Biociências |Porto Alegre |Departamento de Botánica |Instituto de Biologia
AbstractPlants and ants engage in diverse mutualistic interactions that contribute to their adaptive fitness. However, the presence of ants in flowers can generate conflicts between plants and pollinators. These interactions are little studied in temperate grasslands, despite the ubiquitous interactions between ants and plants in this region. In this study, we investigated how the presence and mobility of Camponotus termitarius (Emery) ants on Eryngium chamissonis Urb.
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Mar 1, 2024 | 
link.springer.com | Instituto de Biologia
AbstractThe goal of evolutionary biology is to explain the diversity of the entire sweep of the natural world; population biology only examines tiny slices of time of a few individuals of single species.
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Mar 1, 2024 | 
academic.oup.com | Minas Gerais |Departamento de Zoología |Instituto de Biologia
Identifying areas of endemism, the fundamental units in biogeography (Hausdorf 2002), is the first step towards understanding the historical or current factors that explain modern patterns of speciation and range restriction (Slatyer et al. 2007). Different biological groups living in the same biogeographical region usually exhibit distinct patterns of endemism owing to differences in their traits, habitat preferences, and evolutionary histories (Kessler et al. 2001, González-Orozco et al. 2015).
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Oct 5, 2023 | 
frontiersin.org | Departamento de Botánica |Instituto de Biologia
Stefan Wanke1, 2
Susann Wicke3*
1Institute for Botany, Faculty of Biology, School of Science, Technical University of Dresden, Germany
2Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico
3Institute for Biology, Faculty of Life Sciences, Humboldt University of Berlin, Germany
The final, formatted version of the article will be published soon.
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May 23, 2023 | 
abm.ojs.inecol.mx | Eduardo Navarro |Instituto de Biologia
Resumen Antecedentes y Objetivos: El género Tulostoma agrupa especies que se caracterizan por sus basidiomas angiocárpicos con un saco esporífero, poseyendo un ostiolo o boca apical y un estípite bien definido. A nivel mundial se conocen 173 especies y se han reportado 49 en México. Una de las pocas especies del género con hábito lignícola es T. exasperatum, que, en combinación con sus características morfológicas, la definen claramente.
