Results 231 to 240 of about 152,350 (313)

Species with U‐shaped geographic ranges as an opportunity to study early stages of divergence: The case of Ipomoea microsepala

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The study of the early stages of divergence between populations is crucial to understanding how species and biodiversity originate. Geographic distributions that capture some aspects of the process of divergence, such as those that are markedly U‐shaped, could offer a window to identify systems undergoing incipient speciation, which ...
Itzel A. Piña‐de la Rosa   +1 more
wiley   +1 more source

Evolutionary history and taxonomy of the genus Zea

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Taxonomic differentiation of teosinte species (Zea spp.), the closest relatives of maize (Z. mays) is crucial for understanding their distribution, ecology, and evolutionary history. Resolving the taxonomic uncertainties is of scientific interest and has practical implications for biodiversity management, preservation, and utilization.
José de Jesús Sánchez González   +4 more
wiley   +1 more source

Heterosis in crosses between remnant populations of the rare prairie forb Silene regia: Implications for restoration genetics

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Calls to adopt seed‐sourcing strategies in biological restoration that preserve local adaptation while maximizing genetic variation (e.g., regional admixture provenancing) are increasingly common. Heterosis, the increased fitness of progeny from crosses between populations relative to progeny from crosses within populations, could ...
Isabelle A. Turner   +3 more
wiley   +1 more source

Floral traits and hermaphrodite abundance shape female advantage in a gynodioecious plant

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Gynodioecy is maintained through female advantage in seed fitness that depends on the sex ratio of a population. We hypothesized that females of Silene acaulis would exhibit floral traits associated with elevated outcross pollination and that sex ratio would impact pollen limitation and inbreeding depression such that female advantage ...
Emma K. Chandler, Megan L. DeMarche
wiley   +1 more source

Freedom dreaming of migrant justice: Critical reflections on counterspaces and institutional violence in the university

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract US universities are built on stolen land and sustained through hierarchies of power that produce what migrant justice scholars name as b/order regimes. As institutions that claim to be sites of learning and inclusion, universities are fraught with contradictions as simultaneously sites of dispossession, exclusion, and control.
Sara L. Buckingham   +1 more
wiley   +1 more source

Benzodiazepine prescribing in chronic military-related PTSD: real-world patterns and correlates in specialized care. [PDF]

open access: yesFront Psychiatry
Collins E   +12 more
europepmc   +1 more source

Presumptive Coverage Policies and Workers’ Compensation of Post‐Traumatic Stress Disorder and Other Mental Health Conditions: A Retrospective Time‐Series Study in Canada 2001–2019

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background The impact of presumptive coverage policies for work‐related mental health disorders has not been extensively studied to date. Using data from the Association of Workers’ Compensation Boards of Canada (AWCBC), our objectives were to describe the evolution of compensated mental health conditions, and to explore the association ...
Quentin Durand‐Moreau   +3 more
wiley   +1 more source

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