Publications by authors named "Miguel Matias"

Metabolic rate, the rate of energy use, underpins key ecological traits of organisms, from development and locomotion to interaction rates between individuals. In a warming world, the temperature-dependence of metabolic rate is anticipated to shift predator-prey dynamics. Yet, there is little real-world evidence on the effects of warming on trophic interactions.

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Fournier gangrene is a disease characterized by necrotizing fasciitis of the perineal and genital region, resulting from synergistic polymicrobiotic infection. Most infections can be localized to a cutaneous, urethral, or rectal source and can culminate in a fulminant sepsis. Current state of the art is systemic broad-spectrum antibiotics and serial aggressive debridement which result in superficial perineal defect of wide dimensions.

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Introduction And Importance: Dermatofibrosarcoma protuberans (DFSP) is a rare soft tissue sarcoma affects mainly the trunk and proximal limbs. Clinically, it typically presents as an asymptomatic plaque or nodular-like lesion that progresses slowly before entering a rapid growth phase. DFSP exhibits a low potential for metastasis, mainly in cases where fibrosarcomatous transformation occurs, but it has a high rate of local recurrence.

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Article Synopsis
  • Plastic debris is widely found in freshwater ecosystems, but assessing its distribution is challenging due to a lack of consistent data.
  • A standardized survey of 38 lakes and reservoirs identified that plastic pollution is present in all studied locations, indicating these ecosystems are significantly affected by plastic contamination.
  • The study reveals that urbanized lakes and large bodies of water with specific characteristics are particularly susceptible to high levels of plastic, stressing the need to consider these freshwater areas in pollution management efforts.
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The widespread salinisation of freshwater ecosystems poses a major threat to the biodiversity, functioning, and services that they provide. Human activities promote freshwater salinisation through multiple drivers (e.g.

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A variety of organisms can colonize microplastic surfaces through biofouling processes. Heterotrophic bacteria tend to be the focus of plastisphere research; however, the presence of epiplastic microalgae within the biofilm has been repeatedly documented. Despite the relevance of biofouling in determining the fate and effects of microplastics in aquatic systems, data about this process are still scarce, especially for freshwater ecosystems.

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Humans have made such dramatic and permanent changes to Earth's landscapes that much of it is now substantially and irreversibly altered from its preanthropogenic state. Remote islands, until recently isolated from humans, offer insights into how these landscapes evolved in response to human-induced perturbations. However, little is known about when and how remote systems were colonized because archaeological data and historical records are scarce and incomplete.

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Article Synopsis
  • Understanding species' geographic distributions is essential for assessing biodiversity threats, but survival is influenced by small-scale processes often overlooked in broader studies.
  • The study employs Bayesian Network Inference (BNI) to integrate community structure and environmental data into Species Distribution Models (SDMs) using a dataset of Mediterranean woody plants, resulting in improved predictions.
  • Findings indicate that most species associations are positive and ecologically similar, suggesting these co-occurrences can enhance SDM accuracy by reflecting local ecological processes.
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Habitat structure influences the diversity and distribution of organisms, potentially affecting their response to disturbances by either affecting their 'susceptibility' or through the provision of resources that can mitigate impacts of disturbances. Chemical disturbances due to contamination are associated with decreases in diversity and functioning of systems and are also likely to increase due to coastal urbanisation. Understanding how habitat structure interacts with contaminants is essential to predict and therefore manage such effects, minimising their consequences to marine systems.

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Understanding the consequences of fragmentation of coastal habitats is an important topic of discussion in marine ecology. Research on the effects of fragmentation has revealed complex and context-dependent biotic responses, which prevent generalizations across different habitats or study organisms. The effects of fragmentation in marine environments have been rarely investigated across heterogeneous habitats, since most studies have focused on a single type of habitat or patch.

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Inferring biotic interactions from functional, phylogenetic and geographical proxies remains one great challenge in ecology. We propose a conceptual framework to infer the backbone of biotic interaction networks within regional species pools. First, interacting groups are identified to order links and remove forbidden interactions between species.

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Despite edges being common features of many natural habitats, there is little general understanding of the ways assemblages respond to them. Every edge between two contrasting habitats has characteristics governed by the composition of adjoining habitats and/or by the nature of any transitions between them. To develop better explanatory theory, we examined the extent to which edges act independently of the composition of the surrounding landscape and to which transitions between different types of habitats affect assemblages.

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Article Synopsis
  • Biodiversity acts as a form of insurance for ecosystems by promoting stability in varying environments, but its loss poses significant risks.
  • Researchers conducted an experiment comparing generalist and specialist bacteria under different salinity levels, finding that generalists led to greater productivity and stability during environmental changes.
  • The study suggests that understanding different ecological strategies is crucial for predicting how biodiversity impacts ecosystem resilience, highlighting the need to consider these strategies in future studies on biological insurance.
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One of the simplest hypotheses used to explain species coexistence is the competition-colonization trade-off, that is, species can stably coexist in a landscape if they show a trade-off between competitive and colonization abilities. Despite extensive theory, the dynamics predicted to result from competition-colonization trade-offs are largely untested. Landscape change, such as habitat destruction, is thought to greatly influence coexistence under competition-colonization dynamics, although there is no formal test of this prediction.

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Despite a long history of work on relationships between area and number of species, the details of mechanisms causing patterns have eluded ecologists. The general principle that the number of species increases with the area sampled is often attributed to a sampling artifact due to larger areas containing greater numbers of individuals. We manipulated the patch size and surface area of experimental mimics of macro-algae to test several models that can explain the relationship between abundance and species richness of assemblages colonizing different habitats.

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1. The nature and resources supplied by different components of habitats influence species, creating variability from place to place within a habitat. 2.

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