Articles with "geographic variation" as a keyword



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Geographic variation of reproductive traits and competition for pollinators in a bird‐pollinated plant

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Published in 2019 at "Ecology and Evolution"

DOI: 10.1002/ece3.5457

Abstract: Abstract Geographic variation in the reproductive traits of animal‐pollinated plants can be shaped by spatially variable selection imposed by differences in the local pollination environment. We investigated this process in Babiana ringens (Iridaceae), an enigmatic… read more here.

Keywords: variation reproductive; seed; variation; geographic variation ... See more keywords
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Geographic variation in palliative care delivery among patients diagnosed with metastatic lung cancer in the USA: Medicare population-based study

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Published in 2020 at "Supportive Care in Cancer"

DOI: 10.1007/s00520-020-05549-z

Abstract: Purpose The USA has observed a significant increase in the use of palliative care for patients diagnosed with advanced cancer. However, it is unknown how geographic variation affects patients’ use of palliative care services. We… read more here.

Keywords: metastatic lung; geographic variation; palliative care; cancer ... See more keywords
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Geographic variation in Part B reimbursement and physician offsetting behavior: a physician matching approach

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Published in 2021 at "International Journal of Health Economics and Management"

DOI: 10.1007/s10754-021-09297-3

Abstract: Historically, Medicare has operated under the assumption that providers respond to reductions in reimbursement through increased provision of services in an effort to offset declining practice revenue; however, some recent empirical work examining fee reductions… read more here.

Keywords: part reimbursement; geographic variation; reimbursement; variation part ... See more keywords
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Osteoporosis and premature ovarian insufficiency: geographic variation in clinicians’ and consumers’ knowledge gaps and barriers to care

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Published in 2020 at "Archives of Osteoporosis"

DOI: 10.1007/s11657-020-00713-8

Abstract: Purpose To determine whether geographic variation exists in osteoporosis knowledge, management, and barriers to care in the setting of premature ovarian insufficiency (POI), among general practitioners (GPs) and women with POI. Methods Australian GPs completed… read more here.

Keywords: osteoporosis knowledge; geographic variation; barriers care; premature ovarian ... See more keywords
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The influence of geographic variation in vegetation characteristics on habitat use and productivity of an endangered warbler

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Published in 2021 at "Forest Ecology and Management"

DOI: 10.1016/j.foreco.2020.118857

Abstract: Abstract Understanding how geographic variation in environmental conditions influences species’ distributions and population dynamics is critical for effective management of at-risk species and can help us anticipate wildlife responses to future change. The Golden-cheeked Warbler… read more here.

Keywords: variation; warbler; geographic variation; study sites ... See more keywords
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Geographic Variation in EGFR Mutation Frequency in Lung Adenocarcinoma May Be Explained by Interethnic Genetic Variation

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Published in 2018 at "Journal of Thoracic Oncology"

DOI: 10.1016/j.jtho.2017.11.128

Abstract: ABSTRACT Our understanding of the etiology of EGFR‐mutant lung cancer remains incomplete. One persistent finding in the literature is the geographic variation in the frequency of EGFR mutations in lung adenocarcinoma. We investigated the association… read more here.

Keywords: lung adenocarcinoma; variation; frequency; geographic variation ... See more keywords
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Annual Trends and Geographic Variation in the Utilization of Imaging in Pediatric Patients with Low Back Pain in the United States.

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Published in 2020 at "World neurosurgery"

DOI: 10.1016/j.wneu.2020.11.064

Abstract: BACKGROUND Low back pain (LBP) is increasingly burdening the pediatric population. Advanced imaging such as computerized tomography (CT) scans and magnetic resonance imaging (MRIs) associated with LBP impose significant costs with little benefit. We investigated… read more here.

Keywords: variation; back pain; geographic variation; low back ... See more keywords
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Geographic variation in vocalisations of the Military Macaw in western Mexico

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Published in 2020 at "Bioacoustics"

DOI: 10.1080/09524622.2020.1714479

Abstract: ABSTRACT Geographic variation in acoustic signals may arise in vocal learning species due to processes of cultural evolution and population dynamics, but few studies have evaluated geographic vocal variation for large-bodied non-oscine species such as… read more here.

Keywords: variation; similarity; military macaw; geographic variation ... See more keywords
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Geographic variation in availability of opioid treatment programs across U.S. communities.

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Published in 2023 at "Journal of addictive diseases"

DOI: 10.1080/10550887.2023.2165869

Abstract: Methadone for Opioid Use Disorder (OUD) treatment is only dispensed at Opioid Treatment Programs (OTPs). Little is known about the geographic variation in OTP availability and community characteristics associated with the availability across smaller geographic… read more here.

Keywords: availability; opioid treatment; otp availability; geographic variation ... See more keywords
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Experimental sympatry reveals geographic variation in floral isolation by hawkmoths

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Published in 2019 at "Annals of Botany"

DOI: 10.1093/aob/mcy143

Abstract: Background and Aims Under a widely accepted model of pollinator-driven speciation, geographic variation in pollinator assemblage drives floral divergence and automatically causes reproductive isolation. Yet it is unclear whether divergent floral adaptation initially confers strong… read more here.

Keywords: floral isolation; pollinator; geographic variation; experimental sympatry ... See more keywords
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Geographic variation in a South American clade of mormoopid bats, Pteronotus (Phyllodia), with description of a new species

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Published in 2018 at "Journal of Mammalogy"

DOI: 10.1093/jmammal/gyy048

Abstract: The subgenus Phyllodia (genus Pteronotus) comprises 9 species ranging from the western coast of Mexico to central Brazil, including Greater and Lesser Antilles. Two of them, Pteronotus rubiginosus and Pteronotus sp. 1, form an endemic… read more here.

Keywords: american clade; new species; south american; geographic variation ... See more keywords