Results 11 to 20 of about 2,252 (102)
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid +5 more
wiley +1 more source
CO2 Fertilisation of Growth in Wild C4 Grasses may be Amplified by Upregulated Photosynthesis
ABSTRACT Rising atmospheric CO2 is expected to have limited direct effects on C4 photosynthesis because the carbon‐concentrating mechanism maintains near‐saturating CO2 at Rubisco. Consequently, growth responses of C4 plants to elevated CO2 (eCO2) are generally attributed to indirect improvements in plant water relations.
Edith J. Singini +3 more
wiley +1 more source
Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica
Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner +6 more
wiley +1 more source
First Report on the Diet of the Angolan Flying Squid (Todarodes angolensis) in New Zealand Waters
The Angolan flying squid (Todarodes angolensis) is a southerly distributed, large‐bodied ommastrephid preyed upon by many large marine vertebrates such as the southern elephant seal and deep‐sea squalid sharks. Here, we report its diet in New Zealand waters for the first time, identifying prey items from the stomach contents of 58 adults using ...
Samuel Clough +5 more
wiley +1 more source
The Role of Lightning in Atmospheric Chemistry
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering +2 more
wiley +1 more source
Abstract Atmospheric Rivers (ARs) are narrow regions of extratropical water vapor transport, situated in the lower troposphere. They are responsible for a large proportion of poleward vapor transport from the tropics to the midlatitudes. Although ARs are known to cause devastating floods when encountering topography, they are a crucial source of water ...
A. K. Sneddon +2 more
wiley +1 more source
Gamma Rays Signal the Vulnerability of Forest to Extreme Drought
Abstract Extreme drought and heat are driving forest die‐off globally, yet regional‐scale mapping of subsurface water storage capacity, governing forest vulnerability, remains a major challenge. Here, we demonstrate that airborne gamma‐ray spectrometry (GRS) of potassium (40K) decay provides a powerful proxy for subsurface constraints on water ...
Gavan S. McGrath +3 more
wiley +1 more source
Abstract Near‐surface wind regimes govern critical Earth system processes including dust mobilization, ocean mixing, and wildfire spread, yet their multi‐decadal evolution under anthropogenic forcing remains poorly constrained. Here we quantify extreme wind frequency changes (1981–2024) using ERA5‐Land reanalysis with a monthly aggregation approach ...
Adil Salhi, Essam Heggy
wiley +1 more source
ABSTRACT Many sharks and rays aggregate in critical habitats to migrate, rest, feed, mate or give birth. These predictable events, often involving dozens to thousands of individuals, represent important and vulnerable phases in their life cycles. However, fishing activities and unregulated tourism can threaten these aggregations, disrupting natural ...
Desirée Grancagnolo +5 more
wiley +1 more source
An Index to Characterize the South Indian Ocean High‐Pressure System and Its Variability
The South Indian Ocean subtropical high steers rainfall and drought across southern Africa, Australia, and the surrounding islands, yet it lacked a consistent measure of its behavior. Using an index built from 84 years of atmospheric pressure data, this study shows the high alternates between two distinct states, a strong southeastern position and a ...
Kwesi Akumenyi Quagraine +5 more
wiley +1 more source

