A5067665735- Plant and animal studies
- Marine Biology and Ecology Research
- Animal Behavior and Reproduction
- Subterranean biodiversity and taxonomy
- Evolution and Genetic Dynamics
- Amphibian and Reptile Biology
- Insect and Arachnid Ecology and Behavior
- Cephalopods and Marine Biology
- Evolutionary Game Theory and Cooperation
- Aquatic Ecosystems and Biodiversity
- Ecology and Vegetation Dynamics Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Evolution and Paleontology Studies
- Geology and Paleoclimatology Research
- Genetic diversity and population structure
- Isotope Analysis in Ecology
- Species Distribution and Climate Change
- Urban Development and Societal Issues
- Geological Studies and Exploration
- Gender and Feminist Studies
- Marine and fisheries research
- Spider Taxonomy and Behavior Studies
- Science and Education Research
- Education in Rural Contexts
- Ocean Acidification Effects and Responses
Smithsonian Institution
2017-2023
Chartered Institute of Management Accountants
2023
Universidade Federal de São Carlos
2023
University of Algarve
2013-2021
National Museum of Natural History
2017-2020
University of Parma
2009-2013
University of Gdańsk
2008-2013
Swiss Federal Institute of Aquatic Science and Technology
2009-2010
ETH Zurich
2009
Transitions from sexual to asexual reproduction are often coupled with elevations in ploidy. As a consequence, the importance of ploidy per se for maintenance and spread populations is unclear. To examine effects as independent determinants success lineages, we sampled diploid sexual, asexual, triploid Eucypris virens ostracods across European wide range. Applying nuclear mitochondrial markers, found that E. consists genetically highly differentiated populations, extent these clades could be...
Abstract Background The fucoid brown algae (Heterokontophyta, Phaeophyceae) are increasingly the focus of ecological genetics, biodiversity, biogeography and speciation research. molecular genetics underlying mating system variation, where repeated dioecious – hermaphrodite switches during evolution recognized, sex-related genes key questions currently hampered by a lack genomic information. We therefore undertook comparative analysis male female reproductive tissue transcriptomes against...
In many species with mixed reproduction, parthenogens cover a wider geographic range than sexuals. freshwater ostracods this pattern referred to as parthenogenesis is traditionally explained by ascribing higher potential for dispersal parthenogens. For example, the postglacial invasion hypothesis states that lack of males in northern Europe caused relatively slow expansion sexual lineages after deglaciation. An alternative explanation contemporary distribution sexes based on spatial and...
Abstract Aim Geographical parthenogenesis – in which parthenogenetic populations are more widely distributed than sexually reproducing is observed many plant and animal species. Many hypotheses have been proposed to account for this biogeographical pattern, these often invoke historical processes such as the influence of glaciation. However, there relatively few empirical studies contemporary factors associated with geographical parthenogenesis. The aim study was understand its causes by...
Ostracods have a ubiquitous distribution, high diversity of life history strategies and an extensive fossil record. These characteristics make the group useful study tool in multiple disciplines. In Portugal, very few studies on recent freshwater ostracods been published. This is particularly important given need for accurate database both autoecology geographical distribution extant species correct use these crustaceans as environmental proxies. Six temporary ponds were periodically sampled...
Assessing the long-term macroevolutionary consequences of sexual selection has been hampered by difficulty studying this process in fossil record. Cytheroid ostracodes offer an excellent system to explore record because their readily fossilized carapaces are sexually dimorphic. Specifically, males relatively more elongate than females superfamily. This shape difference is thought arise so that can accommodate very large copulatory apparatus, which account for up one-third body volume. Here...
Abstract Sexual dimorphism is common in many extant animals, but it difficult to demonstrate fossil species. Working with material from the Late Cretaceous of U.S. Coastal Plain, we herein analyze sexual ostracodes superfamily Cytheroidea, a group whose members have males that are relatively more elongate than females. We digitized outlines 6000 individual ostracode valves or carapaces, extracted size (area) and shape (length-to-height ratio) information, used finite mixture models assess...
Sexual selection often favours investment in expensive sexual traits that help individuals compete for mates. In a rapidly changing environment, however, allocation of resources to related reproduction at the expense those survival may elevate extinction risk. Empirical testing this hypothesis fossil record, where can be directly documented, is largely lacking. The rich record cytheroid ostracods offers unique study system context: male shell systematically more elongate than females, and...
The Ostracoda – ubiquitous aquatic micro-crustaceans show an exceptionally high incidence of female-biased adult sex ratio. Intraspecific ratio is known to vary in extant species and yet the fossil record a species' can be highly stable across time. Sex conditions intensity sexual selection influences which undergoes stronger selective pressure. However, impact variation spatial temporal intraspecific on evolution remains open question, calling for further investigations factors controlling...
Ostracodes of the superfamily Cytheroidea exhibit sexual dimorphism in carapace such that males are more elongate than females. This sex difference is attributed to need accommodate large male copulatory apparatus, and degree an indication investment reproduction. In this study, we examine trends dimorphism, as a proxy for selection, from Late Cretaceous late Eocene better understand long-term effects Cretaceous/Paleogene mass extinction. We used mixture models identify clusters digitized...
Neste artigo pretende-se apresentar o jogo de tabuleiro A aventura para conhecimento como uma ferramenta facilitadora do processo ensino-aprendizagem. Este foi criado auxiliar a disseminação e comunicação ciência no âmbito um projeto investigação internacional interdisciplinar que estuda as alterações ambientais ocorreram ao longo dos últimos 7500 anos na costa sudeste Moçambique.
A school photo album is presented to record activities related the Science curriculum, during period from 2013 2019.The records show integration actions between and a university extension project.The organization of constitutes process understanding curriculum in specific context, enabling analyzes reflections scope materiality curriculum.A series 26 photographs explored an attempt understand elements dynamization teaching teacher training context.Portraits selected for that are about...
O trabalho apresenta propostas de tradução para a língua portuguesa três poemas autoria do poeta francês início século XX Guillaume Apollinaire. Exploram-se, nos comentários, as noções ritmo, sujeito poema e modernidade na linha pensamento linguista, tradutor Henri Meschonnic. Também desse pensamento, alerta-se forma com que os componentes da Ética, Poética Político presentificam-se em processo interação recíproca. Trata-se publicados anos 1911, 1913 1918, encontrando-se cada um deles uma...