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North Pacific humpback whales are a celebrated conservation success, rebounding from extensive commercial whaling. Yet they remain vulnerable to the impacts of climate change, a multifaceted stressor that can exacerbate existing threats. During 2013–2016, a Northeast Pacific marine heatwave severely reduced forage availability in their feeding grounds, concurrent with diminished whale recruitment and increased mortality. We an...
Global patterns and regional insights into kelp forest protection, restoration, and stewardshipNARA Subscribed
Kelp forests are among the most extensive and productive coastal ecosystems, yet they remain underrepresented in global conservation policy despite widespread declines driven by interacting global- (i.e., ocean warming, marine heatwaves) to local-scale stressors. At the same time, kelp conservation and restoration efforts are expanding rapidly across regions, but measures of success and syntheses tend to primarily focus on eco...
The Damaraland mole-rat ( Fukomys damarensis ) is a cooperatively breeding rodent primarily inhabiting sandy soils of southern Africa. It has the largest distribution of all the species in the genus Fukomys , from northwestern South Africa to Zambia, and from central Namibia across to western Zimbabwe. To the north of the Zambezi River in Zambia, it is replaced by its sister species Micklem’s mole-rat ( Fukomys micklemi ). Des...
Paleomagnetism relies4 on stable remanent magnetizations held in rocks to reconstruct the ancient geomagnetic field direction and intensity. However, rocks may carry secondary overprints that obscure or completely destroy the original signal. To study the stability of the magnetic vector(s), laboratories routinely apply static alternating field demagnetization along three orthogonal axes (AFD₃), which is fast, non-destructive,...
Non-Tensorial Anhysteretic Remanent Anisotropy and the Detection of Composite FabricsNARA Subscribed
The anisotropy of anhysteretic remanent magnetization (AARM) provides a powerful, nondestructive means of assessing magnetic fabrics. It is widely applied to infer strain and emplacement conditions in sedimentary, volcanic, and intrusive rocks. AARM is generally represented by a symmetric second-rank tensor describing its orientation, strength, and shape. AARM, however, departs from a tensorial shape when the number of grains...
Preliminary insights into fish movements beyond the massive Iron Gate dams on the Danube River using acoustic telemetryNARA Subscribed
Upstream fish movement in the Danube River at the Iron Gate is blocked by the massive hydropower dams and ship locks, as shown by tracking six fish species (vimba bream Vimba vimba , common nase Chondrostoma nasus , barbel Barbus barbus , asp Leuciscus aspius , Pontic shad Alosa immaculata and common carp Cyprinus carpio ). In the absence of effective fish passage systems, the current level of river connectivity is insufficien...
Regional Variation in Insularity Effects on Acorn Herbivory in European Oaks Challenges Predictions of Lower Herbivory on IslandsNARA Subscribed
Aim Ecological theory predicts lower herbivory on islands. However, most island‐mainland comparisons have focused on vegetative tissues, while reproductive structures remain understudied despite their direct influence on plant fitness and recruitment. This study investigates how insularity affects insect herbivory in oak ( Quercus ) acorns across multiple island‐mainland regions and explores the role of acorn traits (chemical...
Migratory patterns and seasonal habitat use of great hammerhead sharks ( Sphyrna mokarran ) in the southeastern United StatesNARA Subscribed
The great hammerhead shark ( Sphyrna mokarran ) is a highly mobile shark species whose population in the United States declined dramatically through the early 2000s. Their spatial ecology is poorly understood, creating challenges for effective conservation of this enigmatic marine predator. Using acoustic telemetry and network analyses, we describe the movement patterns of 15 mature great hammerhead sharks (207–331.5 cm fork l...
We assembled a European bread wheat ( Triticum aestivum L.) association mapping panel ( n = 480) genotyped using a 90,000 feature single nucleotide polymorphism array, with the aim of identifying genetic loci controlling resistance to four fungal diseases: yellow (stripe) rust (YR), brown (leaf) rust (BR), Septoria tritici blotch (ST) and powdery mildew (PM). Simulations showed our panel to have good power to detect genetic lo...
Conservation changed but not dividedNARA Subscribed
Two similar permafrost degradation landslides at Paatuut, West Greenland, caused tsunamis of substantially different magnitudesNARA Subscribed
On November 21, 2000 CE, the c . 48 × 10 6 m 3 Paatuut landslide in West Greenland triggered a tsunami with a maximum runup height of c. 45 m. Although a field team examined the landslide in the immediate aftermath, prior events and processes, in addition to the cause of the landslide, were never studied. We combined field data, satellite images, and historical photos to bridge this knowledge gap. Our investigation unveiled th...
The spurdog ( Squalus acanthias Linnaeus, 1758) is a globally distributed squaliform shark that has historically been overfished but is now recovering in the northeast Atlantic. Data series on spurdog movement and habitat use have been somewhat limited to research surveys due to challenges associated with electronic tagging. Here, we offer a revised attachment method for externally attached pop‐up satellite archival tags that...
Re‐assessment of a blackfoot abalone ( Haliotis iris ) population in Peraki Bay, New Zealand, after 45 yearsNARA Subscribed
Marine species are facing an increasing number of stressors and some species once thought to be resilient to change are now threatened. It is important to understand how species populations have changed through time so that management can be adjusted accordingly, and so that achievable restoration goals can be set. However, many species lack population data at multidecadal or longer time scales. Using historical data from the...
Botryococcus braunii reduces algal grazing losses to Daphnia and Poterioochromonas through both chemical and physical interferenceNARA Subscribed
Crop protection from algal grazers is a key area of concern, as grazing zooplankton and flagellates can decimate microalgae crops and impede economic viability of cultivation for biofuels and bioproducts. Inhibition of grazing by chemical and physical interference is one promising solution; however, there have been few empirical tests of this approach that use defense traits innate to algal crop species. Botryococcus braunii i...