This study investigates the hypothesis that increased water turbidity reduces the efficiency of native aquatic predators in controlling invasive species. We tested whether turbidity affects the predation behavior of the aquatic bug Notonecta melaena Kirkaldy, 1897, on juvenile stages of the invasive crayfish Procambarus clarkii (Girard, 1852). Under controlled laboratory conditions, we exposed predator–prey interactions to var...

Climate change is having profound impacts on biodiversity, with notable effects on the distribution, and morphology of species. Many studies have documented changes in body size and shape in response to changing climatic conditions, with a widespread trend of decreasing body size observed in temperate regions. Despite the growing body of evidence on morphological changes in birds associated with climate change, no study has as...

Global climate change phenomena are amplified in Arctic regions, driving rapid changes in the biota. Here, we examine changes in plant community structure over more than 30 years at two sites in arctic Alaska, USA, Imnavait Creek and Toolik Lake, to understand long‐term trends in tundra response to changing climate. Vegetation cover was sampled every 4–7 years on permanent 1 m 2 plots spanning a 1 km 2 grid using a point‐frame...

The Cunene Province (Southern Angola) is facing recurrent and pluriannual droughts. Surface water supply could be reinforced using the groundwater resources of the multilayered aquifer systems (MAS) hosted in the siliciclastic sediments of the Kalahari Group. The MAS were first identified in the early 2000s in Northern Namibia and recently in the Cunene Province, by studies of the PLANAGEO project based on modern processing an...

Oily sludge is a residue from the petroleum industry composed of a mixture of sand, water, metals, and high content of hydrocarbons (HCs). The heavy oily sludge used in this study originated from Colombian crude oil with high density and low American Petroleum Institute (API) gravity. The residual waste from heavy oil processing was subject to thermal and centrifugal extraction, resulting in heavy oily sludge with very high de...

Aim To assess geographical and temporal patterns of diversification in Metallura hummingbirds, particularly with respect to topographical barriers and climatic variation between different populations. Location Tropical Andes. Methods We estimated a multilocus phylogeny for all nine species of Metallura and evaluated phylogeographical patterns within Metallura tyrianthina using mitochondrial DNA sequences from across its range...

Aim To evaluate the role of historical processes in the evolution of Sclerurus leaftossers by integrating phylogenetic and phylogeographical approaches. Location Humid forests of the Neotropical region. Methods We reconstructed the evolutionary history of Sclerurus based on DNA sequences representing all species and 20 of the 26 recognized subspecies using one autosomal nuclear locus and three protein‐coding mitochondrial gene...