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"David, Carmen"
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Diego : bigger than life
The life and work of the artist Diego Rivera is told through chronological poems that capture salient points in his life.
BOOK
Pan-Arctic marine biodiversity and species co-occurrence patterns under recent climate
The Arctic region is experiencing drastic climatic changes bringing about potential ecological shifts. Here, we explored marine biodiversity and potential species associations across eight Arctic marine areas between 2000 and 2019. We compiled species occurrences for a subset of 69 marine taxa (i.e., 26 apex predators and 43 mesopredators) and environmental factors to predict taxon-specific distributions using a multi-model ensemble approach. Arctic-wide temporal trends of species richness increased in the last 20 years and highlighted potential emerging areas of species accrual due to climate-driven species redistribution. Further, regional species associations were dominated by positive co-occurrences among species pairs with high frequencies in the Pacific and Atlantic Arctic areas. Comparative analyses of species richness, community composition, and co-occurrence between high and low summer sea ice concentrations revealed contrasting impacts of and detected areas vulnerable to sea ice changes. In particular, low (high) summer sea ice generally resulted in species gains (loss) in the inflow and loss (gains) in the outflow shelves, accompanied by substantial changes in community composition and therefore potential species associations. Overall, the recent changes in biodiversity and species co-occurrences in the Arctic were driven by pervasive poleward range shifts, especially for wide-ranging apex predators. Our findings highlight the varying regional impacts of warming and sea ice loss on Arctic marine communities and provide important insights into the vulnerability of Arctic marine areas to climate change.
Journal Article
Picasso : I the king = Yo el rey
\"Pablo Picasso's relationships with both his children and his female companions were often tempestuous and destructive, but they provided the drama on which he fed as he created one groundbreaking work after another. From ceramics to print making to sculpture to photography to poetry, Picasso had a huge appetite for expressing himself through every kind of artistic medium, and he is now considered one of the greatest artists of the 20th century. With bold, powerful oil paintings, David Diaz captures the intensity of a man who once signed a drawing as \"Yo el rey\" or \"I the King.\" Besides beautifully crafted free-verse poems on Picasso's life, there is a back section that includes a glossary, a chronology, sources, notes, and a biographical essa essay.\"--Provided by publisher.
BOOK
Connectivity modelling informs metapopulation structure and conservation priorities for a reef-building species
Aim In coastal marine systems, biogenic reef‐building species have great importance for conservation as they provide habitat for a wide range of species, promoting biodiversity, ecosystem functioning and services. Biogenic reef persistence and recovery from perturbations depend on recolonization by new recruits. Characterizing larval dispersal among distant reefs is key to understanding how connectivity shapes metapopulation structure and determines network coherence; all of which are of critical importance for effective conservation. Location Northeast Atlantic coast and western English Channel, France. Methods We used a biophysical transport model to simulate larval dispersal of the reef‐building polychaete Sabellaria alveolata. We combined dispersal modelling and network analysis into a framework aiming to identify key reef areas and critical dispersal pathways, whose presence in the network is vital to its overall coherence. We evaluated changes in dispersal pathways constrained by different connectivity thresholds, i.e., minimum dispersal rate for the presence of a connection. We tested scenarios of sequential loss of reefs: randomly, by habitat quality (a score for reef status and occupancy in an area) or by betweenness centrality metric (BC; quantifying the proportion of shortest paths connecting all areas that are passing through any given area). Results We found that the network of S. alveolata reefs forms two main regional clusters, the Atlantic coast and the English Channel, which are connected only through weak sporadic dispersal events. Within each cluster, the network is characterized by relatively high connectivity among neighbouring areas with reefs, maintained even under higher connectivity thresholds. Simulating scenarios of sequential loss of reefs further identified high centrality reefs, those with highest BC values, key to network coherence. Main conclusions Effective conservation of this important reef habitat requires a network of protected areas designed to sustain a combination of locally important source reefs, and those that act as stepping stones connecting distant reefs.
Journal Article
Sea-ice habitat minimizes grazing impact and predation risk for larval Antarctic krill
Survival of larval Antarctic krill (Euphausia superba) during winter is largely dependent upon the presence of sea ice as it provides an important source of food and shelter. We hypothesized that sea ice provides additional benefits because it hosts fewer competitors and provides reduced predation risk for krill larvae than the water column. To test our hypothesis, zooplankton were sampled in the Weddell-Scotia Confluence Zone at the ice-water interface (0–2 m) and in the water column (0–500 m) during August–October 2013. Grazing by mesozooplankton, expressed as a percentage of the phytoplankton standing stock, was higher in the water column (1.97 ± 1.84%) than at the ice-water interface (0.08 ± 0.09%), due to a high abundance of pelagic copepods. Predation risk by carnivorous macrozooplankton, expressed as a percentage of the mesozooplankton standing stock, was significantly lower at the ice-water interface (0.83 ± 0.57%; main predators amphipods, siphonophores and ctenophores) than in the water column (4.72 ± 5.85%; main predators chaetognaths and medusae). These results emphasize the important role of sea ice as a suitable winter habitat for larval krill with fewer competitors and lower predation risk. These benefits should be taken into account when considering the response of Antarctic krill to projected declines in sea ice. Whether reduced sea-ice algal production may be compensated for by increased water column production remains unclear, but the shelter provided by sea ice would be significantly reduced or disappear, thus increasing the predation risk on krill larvae.
Journal Article
The best horror of the year. Volume ten
A group of mountain climbers, caught in the dark, fights to survive their descent; An American band finds more than they bargained for in Mexico while scouting remote locations for a photo shoot; A young student's exploration into the origins of a mysterious song leads him on a winding, dangerous path through the US's deep south; A group of kids scaring each other with ghost stories discovers alarming consequences. The Best Horror of the Year showcases the previous year's best offerings in horror short fiction. This edition includes award-winning and critically acclaimed authors Mark Morris, Kaaron Warren, John Langan, Carole Johnstone, Brian Hodge, and others. For more than three decades, award-winning editor and anthologist Ellen Datlow has had her finger on the pulse of the latest and most terrifying in horror writing. Night Shade Books is proud to present the tenth volume in this annual series, a new collection of stories to keep you up at night.
BOOK
Cognitive Regulation Strategies Used by Children with Reading Difficulties
(1) Background: Children with reading difficulties may experience negative emotions and social isolation. The cognitive emotion regulation strategies that they use in different reading tasks can make them more vulnerable in the stressful situations. Using adaptative emotion regulation strategies may help them overcome stressful reading situations. (2) Methods: Children identified with poor reading comprehension skills were compared to children without reading comprehension difficulties on measures of self-evaluation and thought in relation to task, and on cognitive coping strategies relevant to performance. The effect of some relevant demographic factors was also investigated, such as gender and urban/rural setting. (3) Results: Our results indicate that children that have poor reading comprehension skills present higher scores on negative self- evaluation and off-task thoughts that are in relation to performance anxiety. Also, in what concerns cognitive coping strategies, students with difficulties in reading comprehension display a greater use of blaming others strategy, which is in relation to the negative self-evaluations. Also, they displayed less use of putting into perspective. No effect of gender and setting emerged for off and on task thoughts and cognitive coping strategies, except for lower scores of students from rural setting in positive self-evaluation. (4) Conclusions: students presenting difficulties in reading comprehension tend to use more negative self-statements and disengagement through off-task thoughts and employ coping strategies directed to protect self-worth.
Journal Article