Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]
Ecol EvolPredator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S +7 more
europepmc +2 more sources
Modeling nature-based restoration potential across aquatic-terrestrial boundaries. [PDF]
Conserv BiolAbstract Today, few watersheds remain untouched by global change processes arising from climate warming, impoundments, channelization, water extraction, pollution, and urbanization. The need for restoration has resulted in a myriad of interventions, generally performed at small scales, which have limited measurable impact in restoring biodiversity and
Wegscheider B +5 more
europepmc +2 more sources
Phylogeography of Cold Water Soft Coral Alcyonium spp. (Anthozoa, Octocorallia: Alcyonacea) Between South America and the West Antarctic Peninsula. [PDF]
Ecol EvolOur study on genetic diversity in Alcyonium species across the southern South American‐Antarctic region revealed significant genetic divergence, indicating long‐term persistence and adaptation to varied environmental conditions since their diversification approximately 41.1 million years ago, coinciding with the opening of the Drake Passage and the ...
Bruning P +7 more
europepmc +2 more sources
Twoline Skiffia's Latency to Exit a Refuge and to Locate Food When Socialising With Invaders and Raising Temperatures. [PDF]
Ecol EvolNative twoline skiffia's behaviour in response to increasing temperatures and coexistence with invasive guppies was assessed and results uncovered potential benefits for the native fish, including quicker emergence from shelters and more efficient food location when associating with invasive species.
Santiago-Arellano A +3 more
europepmc +2 more sources
Recovery and Degradation Drive Changes in the Dispersal Capacity of Stream Macroinvertebrate Communities. [PDF]
Glob Chang BiolFreshwater ecosystems across Europe are recovering unevenly despite restoration efforts, partly due to the limited ability of many species to disperse. Using a dataset of over 1300 time series, we found that improved ecological quality often leads to gains in macroinvertebrate species with strong dispersal capacities, while degrading sites lose these ...
Cano-Barbacil C +3 more
europepmc +2 more sources
Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use. [PDF]
Ecol EvolAquatic ecosystems in the Andes‐Amazon transition zone of Colombia are now at high risk due to expanded human activities after peace agreements in 2016 ended armed conflict. Fish communities exhibit altitudinal biodiversity gradients that are consistent in space and time, and that need to be accounted for conservation and management considerations. Our
Bogota-Gregory JD +3 more
europepmc +2 more sources
Aquatic macroinvertebrate assemblages in rivers influenced by mining activities [PDF]
Scientific Reports, 2022 Mining is one of the major pollution sources worldwide, causing huge disturbances to the environment. Industrial and artisanal mining activities are widespread in Mexico, a major global producer of various metals.
Axel Eduardo Rico-Sánchez +4 more
doaj +2 more sources
Climate change can disproportionately reduce habitats of stream fishes with restricted ranges in southern South America [PDF]
Scientific ReportsFreshwater fishes are among the most threatened taxa worldwide owing to changes in land use, species introductions, and climate change. Although more than half of the freshwater fishes in the Chilean Mediterranean ecoregion are considered vulnerable or ...
Gustavo Bizama +6 more
doaj +2 more sources
Author Correction: Climate change can disproportionately reduce habitats of stream fishes with restricted ranges in southern South America [PDF]
Scientific ReportsGustavo Bizama +6 more
doaj +2 more sources
New record of Rineloricaria daraha Rapp Py-Daniel & Fichberg, 2008 from Rio Paca, upper Rio Negro, Amazon River basin [PDF]
Check List, 2016 The geographic distribution of a catfish of the family Loricariidae, Rineloricaria daraha Rapp Py-Daniel and Fichberg, 2008, which was only known from its type locality within the Rio Daraá, Brazil, is extended here within the Rio Negro basin to Colombia.
Juan Bogotá-Gregory +3 more
doaj +3 more sources