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「川の堰撤去で在来種も外来種も増加、意外な保全のジレンマ」の検索結果

9 件中 9 件を表示 (3471 ms) · ⭐ 保存した論文

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(dam removal OR weir removal OR barrier removal) AND (rivers OR streams) AND (native species OR indigenous species) AND (invasive species OR alien species OR exotic species) AND (conservation OR biodiversity)

💡 堰撤去と在来種・外来種の両増加という保全ジレンマに焦点を当て、河川生態系と生物多様性の視点で検索

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🔍 PubMed の検索結果

  • Population genetics of Bull Trout (Salvelinus confluentus) in the upper Athabasca River basin.

    Emma K T Carroll, Steven M Vamosi · Ecology and evolution · 2021

    Freshwater ecosystems are negatively impacted by a variety of anthropogenic stressors, with concomitant elevated rates of population decline for freshwater aquatic vertebrates. Because reductions in population size and extent can negatively impact genetic diversity and gene flow, which are vital for sustained local adaptation, it is important to measure these characteristics in threatened species …

    📄 PubMed で読む (PMID: 34765122)
  • Riverine Barrier Removals Could Proliferate Biological Invasions.

    Ellen J Dolan, Ismael Soto, Jaimie T A Dick 他 · Global change biology · 2025

    Multiple stressors, such as pollution, climate change, invasive species and fragmentation, threaten global ecosystems, requiring holistic management actions. Freshwater ecosystems are disproportionately biodiverse and particularly impacted by fragmentation and biological invasions. Artificial barriers, such as dams and weirs, are long-standing features of global landscapes, with a divergence of vi…

    📄 PubMed で読む (PMID: 40041937)
  • Invasive wild pig (Sus scrofa) diets on barrier islands in the southeastern United States.

    Vienna R Canright, Antoinette J Piaggio, James C Beasley 他 · Pest management science · 2024

    Biological invasions are a leading cause of reductions in global biodiversity. Islands are particularly sensitive to invasions, which often result in cascading impacts throughout island communities. Wild pigs (Sus scrofa) are globally invasive and pose threats to numerous taxa and ecosystems, particularly for islands where they have contributed to declines of many endemic species. However, the imp…

    📄 PubMed で読む (PMID: 38517109)
  • Minimizing opportunity costs to aquatic connectivity restoration while controlling an invasive species.

    Austin W Milt, Matthew W Diebel, Patrick J Doran 他 · Conservation biology : the journal of the Society for Conservation Biology · 2018

    Controlling invasive species is critical for conservation but can have unintended consequences for native species and divert resources away from other efforts. This dilemma occurs on a grand scale in the North American Great Lakes, where dams and culverts block tributary access to habitat of desirable fish species and are a lynchpin of long-standing efforts to limit ecological damage inflicted by …

    📄 PubMed で読む (PMID: 29813172)
  • Prioritizing native migratory fish passage restoration while limiting the spread of invasive species: A case study in the Upper Mississippi River.

    Arthur R Cooper, Dana M Infante, Jesse R O'Hanley 他 · The Science of the total environment · 2021

    Despite increasing efforts globally to remove dams and construct fish passage structures, broad-scale analyses balancing tradeoffs between cost and habitat gains from these mitigations infrequently consider invasive species. We present an optimization-based approach for prioritizing dam mitigations to restore habitat connectivity for native fish species, while limiting invasive species spread. Our…

    📄 PubMed で読む (PMID: 34412399)
  • Native and Non-Native Populations Respond Unevenly to River Barrier Removals.

    Ellen J Dolan, Ismael Soto, Julian D Olden 他 · Global change biology · 2026

    The multi-faceted threats of habitat degradation and biological invasions are increasing concerns for the integrity of freshwater ecosystems and their associated services globally. Removal of anthropogenic riverine barriers has gained momentum over the last three decades, motivated by the maintenance requirements of the aging infrastructure, while also functioning as a primary means of restoring r…

    📄 PubMed で読む (PMID: 42253095)
  • Is it safe to remove a dam at the risk of a sprawl by exotic fish species?

    D P S Terêncio, F A L Pacheco, L F Sanches Fernandes 他 · The Science of the total environment · 2021

    The longitudinal dimension of river connectivity has been significantly disrupted by barriers to compensate for water demand in the long periods of water scarcity in the Iberian Peninsula. The scale of this modification is widespread in the Portuguese part of Douro River network where, side to side with agriculture water demand, there is a constant increase in hydropower production. Thus, native s…

    📄 PubMed で読む (PMID: 33524681)
  • An integrated approach to balance freshwater connectivity restoration and invasion risk.

    Alex Arkilanian, David Coté, Yolanda F Wiersma 他 · Conservation biology : the journal of the Society for Conservation Biology · 2026

    Habitat fragmentation negatively affects many native migratory fish populations. However, this fragmentation can also prevent the spread and establishment of invasive species. We modified the dendritic connectivity index (DCI), a commonly used freshwater connectivity metric, to account for multiple invasive dispersal pathways in estimates of invasive species connectivity. We considered dispersal f…

    📄 PubMed で読む (PMID: 41531369)
  • Use of physiological knowledge to control the invasive sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes.

    Michael J Siefkes · Conservation physiology · 2017

    Sea lamprey (Petromyzon marinus) control in the Laurentian Great Lakes of North America is an example of using physiological knowledge to successfully control an invasive species and rehabilitate an ecosystem and valuable fishery. The parasitic sea lamprey contributed to the devastating collapse of native fish communities after invading the Great Lakes during the 1800s and early 1900s. Economic tr…

    📄 PubMed で読む (PMID: 28580146)