A decade of expansion of the invasive plant Carex kobomugi in a coastal foredune system

Charbonneau, Bianca R.; Nicoletta, Rocco; Wootton, Louise

doi:10.1007/s10530-020-02240-6

Cited by 7 publications

(10 citation statements)

References 90 publications

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“…Coastal dunes are dynamic and harsh ecosystems at the land‐sea interface characterized by strong winds and waves, salt spray, and sand burial. These conditions reduce the likelihood of plant invasions (Maun 2009) but regular disturbance events (e.g., overwash and blowouts) can produce openings and opportunities for appropriately adapted plants to establish (Hesp 2002, David et al 2015, Charbonneau et al 2020). Coastal ecosystems are especially vulnerable to the geomorphic changes caused by ecosystem engineering invaders (Fei et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Discovery of a dune‐building hybrid beachgrass (Ammophila arenaria × A. breviligulata) in the U.S. Pacific Northwest

et al. 2021

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The production of novel hybrid zones is an ecologically important consequence of globally increasing rates of species introductions and invasions. Interspecific hybridization can facilitate gene flow between parent species or produce novel taxa that may alter invasion dynamics or ecosystem services. The coastal sand dunes of the U.S. Pacific Northwest coast are densely populated by two non‐native, congeneric, dune‐building beachgrasses (Ammophila arenaria and A. breviligulata). Here, we present morphological, cytological, and genetic evidence that the two beachgrass species have hybridized in this globally unique range overlap. The A. arenaria × A. breviligulata hybrid has been found at 12 coastal sites in Washington and Oregon. It is a first‐generation hybrid between the beachgrass species as evidenced by genome size comparisons and single nucleotide polymorphism genotyping. It is intermediate between the parent grasses in many morphological characters but exceeds both parents in shoot height, a trait associated with dune‐building potential. Understanding the ecological and population genetic consequences of this novel hybridization event is of the utmost importance in a system where any change in dominant beachgrass species can have large effects on both biodiversity management and coastal protection.

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Section: Introductionmentioning

confidence: 99%

Discovery of a dune‐building hybrid beachgrass (Ammophila arenaria × A. breviligulata) in the U.S. Pacific Northwest

et al. 2021

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“…Invasive C. kobomugi arrived in the United States in 1929 at IBSP, and in 1957, C. kobomugi was contained to “one exceptionally stable dune” (Martin, 1959; Small, 1954; Wootton et al, 2005). However, it has since spread to multiple foredune and swale areas all over the park (Charbonneau et al, 2017, 2020). Numerous named as well as unnamed storms have impacted IBSP since 1957, most notably, the Ash Wednesday Storm in March 1962 (Dolan & Davis, 1992) and Hurricane Sandy in October 2012 (Charbonneau et al, 2017; Doran et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

“…foredune and swale areas all over the park (Charbonneau et al, 2017(Charbonneau et al, , 2020. Numerous named as well as unnamed storms have impacted IBSP since 1957, most notably, the Ash Wednesday Storm in March 1962 (Dolan & Davis, 1992) and Hurricane Sandy in October 2012 (Charbonneau et al, 2017;Doran et al, 2013).…”

Section: Study Sitementioning

confidence: 99%

The persistence and conversion of coastal foredune and swale vegetation community distributions 63 years later

2023

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Vegetation shifts can directly alter habitat dynamics and indirectly impact habitat stability relative to disturbance response. Barrier island dune habitats exhibit spatiotemporally dynamic topography that is affected by vegetation. However, vegetation distribution data can be rare and vegetation persistence is largely unknown such that species turnover over in communities can occur unnoticed. This is true despite concerns and documented cases of woody encroachment related to climate change in these ecogeomorphic habitats where physical stability to resist storm erosion varies with vegetation distribution and density. In 1956 and 1957, the vegetation of Island Beach State Park, NJ, was mapped as a permanent record for subsequent ecological study. In June 2020, we remapped the vegetation of 5.4 of 17 km north to south, seaward of the thicket community boundary. We maintained the same classification system as the historic record, physically mapping vegetation patches via GPS. We quantified changes in thicket, heather, and grass community distribution between the two time periods. Habitat persistence and conversion varied in the 63 years. Heath communities saw 80%–97% habitat loss in conversion to woody thicket. Conversely, thicket community distribution drastically increased, replacing heath where it was previously prevalent. This represents the first known documented instances of woody encroachment for Morella pensylvanica. When they did not expand, thicket communities receded landward or underwent turnover to an invasive species. Woody species of interest for dune stabilization occupied areas of similar habitat characteristics. Dune vegetation distribution persistence from 1957 to 2020 was relatively consistent and stable with the exception of heath habitat conversion. Barrier island stability is directly related to vegetation stability such that understanding where community shifts might occur over time can aid in managing and modeling efforts surrounding these dynamic ecogeomorphic habitats.

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“…In these ecosystems, local factors related to the sea-inland gradients (e.g. salt spray, nutrient and water limitations, sandblasting and burial) often play as big a role in determining habitat suitability as macroscale climate attributes (Carboni et al, 2011;Charbonneau et al, 2020;Del Vecchio et al, 2018;Hesp, 1991). This explains why traditionally coastal dune invasives are largely underrepresented in the SDM literature, despite including numerous species of ecological and economic concern (Giulio et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Invasion dynamics and potential future spread of sea spurge across Australia’s coastal dunes

Giulio

Pinna

Carboni

et al. 2022

Journal of Biogeography

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Aim: Invasive species provide an opportunity to study biogeography in action, allowing us to observe how species adapt and fill their environmental niche when introduced to new ecological settings. Here we use sea spurge-a foredune specialist plant species native to Europe which has recently spread across Australia's southern coasts-as a model system to explore species' environmental niches adaptations and potential for future spread following introduction outside their native range.Location: Europe and Australia.

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A decade of expansion of the invasive plant Carex kobomugi in a coastal foredune system

Cited by 7 publications

References 90 publications

Discovery of a dune‐building hybrid beachgrass (Ammophila arenaria × A. breviligulata) in the U.S. Pacific Northwest

Discovery of a dune‐building hybrid beachgrass (Ammophila arenaria × A. breviligulata) in the U.S. Pacific Northwest

The persistence and conversion of coastal foredune and swale vegetation community distributions 63 years later

Invasion dynamics and potential future spread of sea spurge across Australia’s coastal dunes

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