8 documents found, page 1 of 1

Case Report: Dermatofibrosarcoma Protuberans of the Foot: What Steps Can We Take?

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 r...

Plastic debris in freshwater systems worldwide

Plastic debris is widespread in freshwater ecosystems, but a rigorous assessment of its global distribution has been hindered by a lack of comprehensive and comparable data. We performed the first standardized global survey of lakes to assess the quantity and type of plastics (>250μm). We included 38 lakes located in 23 different countries distributed across five continents, spanning different environmental gra...

Disentangling food-web environment relationships: A review with guidelines

Food webs represent the energy fluxes and the nutrient cycling between interacting species that underpin several ecosystem functions. Whether and how interactions vary across environmental gradients is still largely unknown. We reviewed the literature searching for systematic relationships between structural food-web properties and environmental gradients. Temperature and biotic factors are amongst the most fre...

Food web, taxonomy and functional level community response to large-scale bioge...

Food webs are being increasingly used to predict ecosystem stability. The ultimate food web properties already account for the abiotic (environment) and biotic interactions (i.e. predator-prey interactions). While the importance of abiotic environment on a single taxonomical or functional diversity is being recognized, the role of environment in structuring trophic interactions is less explored. Additionally, f...

Abundance-body mass relationships structuring aquatic food webs across biogeogr...

Most of the biological rates (growth, metabolic, reproduction) are greatly associated with body mass. Trophic interactions are also highly dependent on body mass due to feeding constraints. Scaling of body mass with abundance, known as size spectrum, provides information on community structure, energy flow, and ecosystem functioning. However, not many studies have incorporated individual body mass-abundance sca...

Combining eDNA metabarcoding and morphological-based approaches to increase res...

Environmental DNA (eDNA) metabarcoding has the potential to improve aquatic biodiversity assessments by improving detection capability, taxonomic resolution and cost-effectiveness when compared to morphological- based approaches. Advances have been made in the field of metabarcoding, but challenges remain, including sensitivity of results to DNA extraction method and marker choice, and its dependency on often-i...

Global patterns and predictors of microplastic occurrence and abundance in lent...

The majority of microplastic research has focused on seawater, with fewer than 4% of microplasticsrelated studies occurring on freshwaters. The limited available information suggests that the abundance of microplastics in freshwaters is often as high or even higher than marine environments. However, comprehensive investigations on occurrence and fate of microplastics in freshwaters are scarce and highly fragmen...

Early colonization of macroalgae in an Atlantic Island subtidal rocky shore: an...