Climate change is altering environmental conditions in the Patagonia ecosystems, with potential consequences for the distribution of marine species that sustain artisanal fisheries within the inner sea of northern Chilean Patagonia (41°28.6′S–45°30′S). We evaluated current and future habitat suitability for one forage species (Falkland sprat, Sprattus fuegensis ) and three demersal predators ( Macruronus magellanicus , Merlucc...

Predicting changes in the spatial distribution of marine resources under climate change (CC) is key for sustainability, since some species may change their historical fishing zones and/or the spatial boundaries set for managing fisheries. Chile is a leading country in fishing landings and products (e.g., fish oil and fishmeal). This productivity is influenced by the Humboldt Current, one of the most important upwelling systems...

Aim Endemism is a critical aspect of biological diversity, yet the mechanisms driving it remain unclear. The leading hypothesis posits that prolonged environmental stability fosters speciation and reduces extinction rates, promoting endemism. While terrestrial studies exist, marine environments remain underexplored. This study analysed the global distribution and drivers of phylogenetic endemism in two marine taxa: Calanidae c...

Species distribution models based solely on climatic variables are limited in their ability to predict future geographic ranges. One way to overcome this difficulty is to incorporate biological variables relevant to the focal species and variables representing the anthropogenic effect in the study area. Leopardus guigna (güiña) is a charismatic and threatened feline species of southern South America. Based on climatic models,...

Zooplankton diversity in the deep “midnight zone” (>1000 m), where sunlight does not reach, remains largely unknown. Uncovering such diversity has been challenging because of the major difficulties in sampling deep pelagic fauna and identifying many (unknown) species that belong to these complex swimmer assemblages. In this study, we evaluated zooplankton diversity using two taxonomic marker genes: mitochondrial cytochrome oxi...

Euphausiids (hereafter “krill”) are one of the main components of the pelagic communities of the Humboldt Current System (HCS). Their community dynamics have been well studied in central-southern Chile where upwelling is strongly seasonal, but little is known about the permanent-upwelling area of the HCS, which yields the largest fishery in the world, the Peruvian anchovy. We applied hierarchical generalized additive models wi...

Aim To assess the largely neglected patterns and causes of latitudinal diversity gradients in soil protists, using South American testate amoebae as model organisms. Location South‐western South America (SSA). Methods We assessed the relationship among richness, latitude and predictions of eight ecological hypotheses in SSA, a region characterized by harsh abiotic conditions northward and southward from mid‐latitudes. We also...