Results 71 to 80 of about 101,096 (303)

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Ecology and Dispersal of the Bedbug [PDF]

open access: yes, 2012
The global bedbug resurgence has left the scientific community racing to fill large gaps in our understanding of the biology and ecology of this forgotten pest. Studying the ecology of a species so closely associated with humans has inherent difficulties,
Naylor, Richard A
core  

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

Ecology and evolution of cycad‐feeding Lepidoptera

open access: yesEcology Letters, 2020
Abstract Cycads are an ancient group of tropical gymnosperms that are toxic to most animals – including humans – though the larvae of many moths and butterflies (order: Lepidoptera) feed on cycads with apparent immunity. These insects belong to distinct lineages with varying degrees of specialisation and diverse feeding ecologies ...
Melissa R. L. Whitaker, Shayla Salzman
openaire   +3 more sources

An Ecological Model for Premature Infant Feeding [PDF]

open access: yesJournal of Obstetric, Gynecologic & Neonatal Nursing, 2009
Premature infants are at increased risk for poor health, feeding difficulties, and impaired mother-infant interaction, leading to developmental delay. Social-environmental risks, such as poverty or minority status, compound these biological risks, placing premature infants in double jeopardy. Guided by an ecological model, the Hospital-Home Transition:
Rosemary, White-Traut, Kathleen, Norr
openaire   +2 more sources

Engineering Microbial Particles for Next‐Generation Biomedical Platforms

open access: yesAdvanced Science, EarlyView.
Microbe‐derived particles (MDPs), which include extracellular vesicles, outer membrane vesicles, inclusion bodies, polysaccharide particles, and virus‐like particles, represent a rapidly expanding category of bioinspired nanomaterials. With their natural origin, intrinsic biocompatibility, and highly programmable functionality, MDPs serve as a ...
Yuting Li   +7 more
wiley   +1 more source

Trophic ecology of Atlantic spotted dolphins (Stenella frontalis) in a tropical bay of the southwestern Atlantic Ocean

open access: yesGlobal Ecology and Conservation
Information on the trophic ecology of top predators such as cetaceans is critical for understanding their role in ecosystem structure. Furthermore, populations of the same species can exhibit different feeding ecologies, with intraspecific variation ...
M.C. Neves   +6 more
doaj   +1 more source

Achieving High‐Density and Stress‐Resilient Maize Breeding Via Germplasm Innovation

open access: yesAdvanced Science, EarlyView.
Global population growth and climate change have exacerbated the global food crisis. This perspective presents a conceptual framework focusing on enhancing population advantages. Several novel breeding objectives are proposed to improve density tolerance and stress resistance for yield improvement.
Xinlong Li   +9 more
wiley   +1 more source

Evolution of feeding specialization in Tanganyikan scale-eating cichlids: a molecular phylogenetic approach

open access: yesBMC Evolutionary Biology, 2007
Background Cichlid fishes in Lake Tanganyika exhibit remarkable diversity in their feeding habits. Among them, seven species in the genus Perissodus are known for their unique feeding habit of scale eating with specialized feeding morphology and ...
Nishida Mutsumi   +3 more
doaj   +1 more source

The feeding ecology of and carbon and nitrogen budgets for Engraulis capensis in the southern Benguela ecosystem

open access: yes, 1988
Bibliography: leaves 179-231.The two main schools of thought regarding the diets of intermediate microphagous clupeids are: A) that they are herbivorous and B) that they are omnivorous, but consume mainly zooplankton. The former view has been employed to
James, Andrew Gordon
core  

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