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  1. 6681
    “…Monarch butterflies (Danaus plexippus) in eastern North America re-colonize the breeding range over several generations that result in population densities that vary across space and time during the breeding season. …”
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    Experimental Examination of Intraspecific Density-Dependent Competition during the Breeding Period in Monarch Butterflies (Danaus plexippus)
  2. 6682
    por Mächler, Elvira, Altermatt, Florian
    Publicado 2012
    “…In a controlled lab experiment, protist and rotifer species originally isolated in North America invaded into a natural, field-collected community of microorganisms of European origin. …”
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    Interaction of Species Traits and Environmental Disturbance Predicts Invasion Success of Aquatic Microorganisms
  3. 6683
    “…Tundra swans (Cygnus columbianus) are broadly distributed in North America, use a wide variety of habitats, and exhibit diverse migration strategies. …”
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    Molecular Detection of Hematozoa Infections in Tundra Swans Relative to Migration Patterns and Ecological Conditions at Breeding Grounds
  4. 6684
    “…West Nile Virus (WNV) is now endemic throughout North America, with annual recurrence dependent upon successful overwintering when cold temperatures drive mosquito vectors into inactivity and halt transmission. …”
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    Dynamics of West Nile Virus Persistence in House Sparrows (Passer domesticus)
  5. 6685
    “…Furthermore, the fourth cluster consisted of Pacific continent, North America and European countries. CONCLUSION: Considering the benefits of clustering based on normal mixture models, it seems that can be applied this method in wide variety of medical and public heath contexts.…”
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    Classification of Death Rate due to Women’s Cancers in Different Countries
  6. 6686
    “…Sin Nombre hantavirus (SNV), hosted by the North American deermouse (Peromyscus maniculatus), causes hantavirus pulmonary syndrome (HPS) in North America. Most transmission studies in the host were conducted under artificial conditions, or extrapolated information from mark-recapture data. …”
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    Transmission Ecology of Sin Nombre Hantavirus in Naturally Infected North American Deermouse Populations in Outdoor Enclosures
  7. 6687
    “…METHODS: Fourteen focus groups and five telephone interviews were conducted in seven countries in North America and Europe, comprised of adults who had received a diagnosis of ADHD. …”
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    Comparison of the burden of illness for adults with ADHD across seven countries: a qualitative study
  8. 6688
    “…Terrestrial long-distance migrations are declining globally: in North America, nearly 75% have been lost. Yet there has been limited research comparing habitat suitability and connectivity models to identify migration corridors across increasingly fragmented landscapes. …”
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    Comparing Habitat Suitability and Connectivity Modeling Methods for Conserving Pronghorn Migrations
  9. 6689
    “…We present a redescription of Megalocoelacanthus dobiei, a giant fossil coelacanth from Upper Cretaceous strata of North America. Megalocoelacanthus has been previously described on the basis of composite material that consisted of isolated elements. …”
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    The Giant Cretaceous Coelacanth (Actinistia, Sarcopterygii) Megalocoelacanthus dobiei Schwimmer, Stewart & Williams, 1994, and Its Bearing on Latimerioidei Interrelationships
  10. 6690
    por Elbroch, L. Mark, Wittmer, Heiko U.
    Publicado 2013
    “…Our data suggested that condors exacted foraging costs on pumas by significantly decreasing puma handling times at carcasses, and that pumas increased their kill rates by 50% relative to those reported for North America to compensate for these losses. Finally, we determined that the relative risks of detection and associated harassment by condors, rather than prey densities, explained puma “giving up times” (GUTs) across structurally variable risk classes in the study area, and that, like many prey species, pumas disproportionately hunted in high-risk, high-resource reward areas.…”
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    Nuisance Ecology: Do Scavenging Condors Exact Foraging Costs on Pumas in Patagonia?
  11. 6691
    “…We demonstrate that two distinct epidemic lineages, FQR1 and FQR2, not one as previously thought, emerged in North America within a relatively short period after acquiring the same fluoroquinolone resistance mutation and a highly-related conjugative transposon. …”
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    Emergence and global spread of epidemic healthcare-associated Clostridium difficile
  12. 6692
    “…Ecologically driven divergence has been invoked to explain the repeated evolution of sympatric dwarf and normal lake whitefish (Coregonus clupeaformis) species in multiple lakes in eastern North America. Nevertheless, links between most putatively adaptive traits and ecological variation remain poorly defined within and among whitefish species pairs. …”
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    Variable extent of parallelism in respiratory, circulatory, and neurological traits across lake whitefish species pairs
  13. 6693
    “…Pubmed, Psychinfo, Psychnet, Cochrane CENTRAL, and Web of Science were searched for English language papers published between January 1990 and March 2012 RESULTS: Twenty-seven studies were found which fitted the criteria, of which, all but one were from North America. Only three measured adolescent sexual, reproductive, or mental health outcomes related to SBHC and none of the studies were randomized controlled trials. …”
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    A systematic review of the role of school-based healthcare in adolescent sexual, reproductive, and mental health
  14. 6694
    “…In the present study, the Amylostereum species and genotypes associated with three species of Sirex native to eastern North America and one relatively recent invasive Sirex from Europe were investigated by comparing intergenic spacer regions (IGS). …”
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    Fidelity Among Sirex Woodwasps and Their Fungal Symbionts
  15. 6695
    “…North America and the neotropics harbor nearly all species of plethodontid salamanders. …”
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    Resistance to Chytridiomycosis in European Plethodontid Salamanders of the Genus Speleomantes
  16. 6696
    “…Here we examine evolution of reproductive structures in the leiobunine harvestmen or “daddy long-legs” of eastern North America, a monophyletic group that includes species in which males court females using nuptial gifts and other species that are equipped for apparent precopulatory antagonism (i.e., males with long, hardened penes and females with sclerotized pregenital barriers). …”
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    Comparative Analyses of Reproductive Structures in Harvestmen (Opiliones) Reveal Multiple Transitions from Courtship to Precopulatory Antagonism
  17. 6697
    “…Thirteen plastid haplotypes were identified throughout North America, including one dominant haplotype, which was present in all C. caroliniana populations. …”
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    Pathways of introduction of the invasive aquatic plant Cabomba caroliniana
  18. 6698
    “…The levels of (13)C in tooth enamel were higher in North America than in teeth from Europe and Asia, and Mexican teeth showed even higher levels than those from USA. …”
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    Analysis of Radiocarbon, Stable Isotopes and DNA in Teeth to Facilitate Identification of Unknown Decedents
  19. 6699
    “…Since the last decade, unusually high honey bee colony losses have been reported mainly in North-America and Europe. Here, we report on a comprehensive bee pathogen screening in Belgium covering 363 bee colonies that were screened for 18 known disease-causing pathogens and correlate their incidence in summer with subsequent winter mortality. …”
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    Comprehensive Bee Pathogen Screening in Belgium Reveals Crithidia mellificae as a New Contributory Factor to Winter Mortality
  20. 6700
    “…In addition, areas of southern Africa, the Mediterranean, the Arctic, and Central America/western North America also emerge as prominent regional climate change hotspots in response to intermediate and high levels of forcing. …”
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    Climate change hotspots in the CMIP5 global climate model ensemble
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