Publications by authors named "Brunno F Oliveira"

Ecological and evolutionary theories have proposed that species traits should be important in mediating species responses to contemporary climate change; yet, empirical evidence has so far provided mixed evidence for the role of behavioral, life history, or ecological characteristics in facilitating or hindering species range shifts. As such, the utility of trait-based approaches to predict species redistribution under climate change has been called into question. We develop the perspective, supported by evidence, that trait variation, if used carefully can have high potential utility, but that past analyses have in many cases failed to identify an explanatory value for traits by not fully embracing the complexity of species range shifts.

View Article and Find Full Text PDF

The publish-or-perish culture in academia has catalysed the development of an unethical publishing system. This system is characterised by the proliferation of journals and publishers-unaffiliated with learned societies or universities-that maintain extremely large revenues and profit margins diverting funds away from the academic community. Early career researchers (ECRs) are particularly vulnerable to the consequences of this publishing system because of intersecting factors, including pressure to pursue high impact publications, rising publication costs and job insecurity.

View Article and Find Full Text PDF

A key component of nature's contribution to people is aesthetic value. Charismatic species rally public support and bolster conservation efforts. However, an insidious aspect to humanity's valuation of nature is that high value also drives wildlife trade, which can spearhead the demise of prized species.

View Article and Find Full Text PDF

A rich body of evidence from local-scale experiments and observational studies has revealed stabilizing effects of biodiversity on ecosystem functioning. However, whether these effects emerge across entire regions and continents remains largely overlooked. Here we combine data on the distribution of more than 57,500 plant species and remote-sensing observations throughout the entire Western Hemisphere to investigate the role of multiple facets of plant diversity (species richness, phylogenetic diversity, and functional diversity) in mediating the sensitivity of ecosystems to climate variability at the regional-scale over the past 20 years.

View Article and Find Full Text PDF
Article Synopsis
  • Continental mountain areas, while only covering less than 15% of the Earth's surface, hold over 80% of terrestrial diversity, prompting research into the reasons behind this phenomenon.
  • A study on amphibians revealed that families with higher speciation rates are more likely to be found in mountainous regions, indicating that topographically complex areas promote faster speciation.
  • Findings suggest that not only speciation is influenced by mountain environments, but also factors like low extinction and high colonization rates play a role in maintaining high biodiversity, underscoring the importance of these regions for conservation efforts.
View Article and Find Full Text PDF

Introduced pathogens can alter the geographic distribution of susceptible host species. For example, Batrachochytrium dendrobatidis (Bd) is a fungal pathogen that has been linked to the global decline and extinction of numerous amphibian species during the last four decades. A growing number of studies have described the distribution of Bd and susceptible hosts across the globe; however, knowledge on how Bd may shape the climatic niche of susceptible species is still missing.

View Article and Find Full Text PDF

The broadening in species' thermal tolerance limits and breadth from tropical to temperate latitudes is proposed to reflect spatial gradients in temperature seasonality, but the importance of seasonal shifts in thermal tolerances within and across locations is much less appreciated. We performed thermal assays to examine the maximum and minimum critical temperatures (CT and CT , respectively) of a mosquito community across their active seasons. Mosquito CT tracked seasonal shifts in temperature, whereas CT tracked a countergradient pattern with lowest heat tolerances in summer.

View Article and Find Full Text PDF

Wildlife trade is a multibillion dollar industry that is driving species toward extinction. Of >31,500 terrestrial bird, mammal, amphibian, and squamate reptile species, ~18% ( = 5579) are traded globally. Trade is strongly phylogenetically conserved, and the hotspots of this trade are concentrated in the biologically diverse tropics.

View Article and Find Full Text PDF

Assemblage similarity decays with geographic distance-a pattern known as the distance-decay relationship. While this pattern has been investigated for a wide range of organisms, ecosystems and geographical gradients, whether these changes vary more cryptically across different forest strata (from ground to canopy) remains elusive. Here, we investigated the influence of ground vs.

View Article and Find Full Text PDF

Current ecological and evolutionary research are increasingly moving from species- to trait-based approaches because traits provide a stronger link to organism's function and fitness. Trait databases covering a large number of species are becoming available, but such data remains scarce for certain groups. Amphibians are among the most diverse vertebrate groups on Earth, and constitute an abundant component of major terrestrial and freshwater ecosystems.

View Article and Find Full Text PDF

There is an increasing interest in measuring loss of phylogenetic diversity and evolutionary distinctiveness which together depict the evolutionary history of conservation interest. Those losses are assessed through the evolutionary relationships between species and species threat status or extinction probabilities. Yet, available information is not always sufficient to quantify the threat status of species that are then classified as data deficient.

View Article and Find Full Text PDF