📄 earth_science

Testing the Effects of Changing Landscape Connectivity on Juvenile Chinook Salmon Densities within the Skagit River Delta in Response to a Natural Experiment

This study experimentally demonstrates a consistent positive relationship between landscape connectivity and juvenile Chinook Salmon densities in the Skagit River Delta by analyzing population changes following a natural river avulsion, thereby validating connectivity as a key predictor for habitat restoration success.

Matthew Leonard Nelson, Michael T. LeMoine, Correigh M. Greene, Eric M. Beamer2026-08-07
📄 earth_science

Spatial patterns of benthic macrofaunal communities and sediment contaminants in a subarctic bay (Newfoundland, Canada)

This study evaluates spatial patterns of benthic macrofaunal communities and sediment contaminants in Newfoundland's Placentia Bay, revealing that reduced biodiversity at the bay's head is linked to elevated organic matter and heavy metal concentrations, particularly arsenic, chromium, and copper, which exceed sediment quality guidelines.

Ivana Komendić, Bárbara de Moura Neves, Patricia A. Ramey-Balci2026-08-07
📄 earth_science

An unusually delayed and persistent atmospheric CO₂ response to the 2023/24 El Niño

This study reveals that the 2023/24 El Niño triggered an unusually delayed and persistent atmospheric CO₂ growth response driven by a prolonged land–atmosphere carbon imbalance, which resulted in a cumulative carbon anomaly twice as large as that of the 2015/16 event despite weaker initial forcing.

Xiaoyu Sun, Denghui Ji, Sharon Patris, Darko Dubravica, Mathias Palm, Frank Hase, Minqiang Zhou, Marcus Rex, Justus Noth (…)2026-08-07
📄 earth_science

Tree height variation enhances the effect of tree shade as heat mitigation strategy: A case study across urban-seminatural landscapes in North-Eastern Germany

This study demonstrates that tree shade's heat mitigation effect is significantly stronger in semi-natural landscapes than in urban areas and is primarily driven by canopy height variation and proximity to forests rather than land-cover composition, suggesting that adaptation strategies should prioritize vegetation structure and landscape configuration over simply increasing tree cover.

Anisha Aryal, Konlavach Mengsuwan, Masahiro Ryo2026-08-07
📄 earth_science

Divergent Drought Propagation Pathways in Adjacent Mediterranean Lakes Under Identical Climatic Forcing: Satellite-Based Attribution of Land Cover–Hydrology Interactions

This study utilizes a novel satellite-only attribution framework to demonstrate that while identical climatic drying trends drove hydrological drought in two adjacent Mediterranean lakes, their divergent propagation timescales were governed by basin morphology, and their similar non-climatic declines were caused by distinct land-cover and water-use changes, offering a scalable diagnostic tool for data-scarce regions.

Ali Muslim AMIRI, Feza ÖRÜÇ2026-08-07
📄 earth_science

Long-Term Climatic Trends (Temperature, Precipitation) and Cutaneous Leishmaniasis Risk Across Seven Communes of Saïda, Northwestern Algeria (2002–2025)

This study characterizes the geographic setting of Saïda, Algeria, and reveals a statistically significant 24-year trend of rising temperatures and declining precipitation, providing a critical climatic baseline for optimizing vector-control strategies and surveillance for cutaneous leishmaniasis in this semi-arid region.

BERBER Naima, KEBIR Nasr Eddine, Maya HASSANI, Bendaoud Amina2026-08-07
📄 earth_science

Rapid and slow quartz precipitation during cyclic fault healing in seismogenic fault rocks from subduction zones

This study utilizes SEM–CL and EPMA analyses of ultracataclasites from the Minami-Awa Fault to demonstrate that cyclic alternations between rapid, Al-rich quartz precipitation under disequilibrium conditions and slower, Al-poor precipitation near equilibrium provide direct microstructural evidence for repeated fault healing and permeability evolution in subduction zones.

Takahiro Hosokawa, Yoshitaka Hashimoto, Rüdiger Kilian, Michael Stipp2026-08-07
📄 earth_science

Temporal Variation in Ecological Indices of the Fish Assemblage in a Port- Influenced Amazonian Estuarine System in the Gulf of Maranhão, Brazil

This study assesses the temporal and spatial variations in fish assemblage ecological indices within the port-influenced Coqueiros Strait estuary in Brazil, revealing that while seasonal factors drive community structure and some sampling points show signs of anthropogenic pressure, the overall ecological indices remain relatively stable, underscoring the area's critical role as a nursery and the need for continued sustainable management.

Filipe França dos Santos Silva, Danielle Viana Mendes, Scarlleth Patrícia Salomão Silva, Larissa Gabrielle Pinheiro Fer (…)2026-08-07