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41 results for “Eelgrass”
Figure 7 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 7: Frequency distributions at 0.25-m increments of tidal elevation in the study area: area of intertidal habitat (A), and percent occupancy by Zostera marina (B) and Zostera japonica (C) for 1997 and 2007.
Figure 4 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 4: Areal distributions of Zostera marina and Zostera japonica from classification of digital orthophotographs obtained from the July 2007 aerial survey of lower Yaquina Estuary.
Figure 2 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 2: Monthly average values (±95% CI) for percent cover of Zostera marina plants within the 1000-m2 monitoring zones off Idaho and Coquille Points, obtained from randomly-placed 0.25-m2 quadrats (1999–2002).
Figure 5 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 5: Area of Zostera marina and Zostera japonica as a function of distance from the mouth of Yaquina Estuary, from August normalised classifications of the digital orthophotographs obtained in 1997 and 2007.
Figure 8 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 8: Perimeters of Zostera japonica patches in Idaho Flat embayment, mapped via DGPS on foot (June 23, 2000 and August 13, 2014).
Figure 3 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 3: Seasonal variation in area of selected Zostera japonica meadows within Sallys Bend embayment, mapped via DGPS from a hovercraft (April 2011–November 2012).
Figure 6 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 6: Total (August normalised) area of intertidal Zostera marina (A) and Zostera japonica (B) in lower Yaquina Estuary from orthophotograph image classifications (Year 1 is 1997, Year 11 is 2007) and best-fit equations with 95% CI.
Mating system variation in the eelgrass, Zostera marina
<p>Genetic diversity can modulate a population's response to a changing environment and plays a critical role in its ecological function. While multiple processes act to maintain genetic diversity, sexual reproduction remains the primary driving force. The eelgrass (<em>Zostera marina</em>) is an important habitat forming species found in temperate coastal ecosystems across the globe. Recent increases in sea surface temperatures have resulted in shifts from a perennial to a largely annual life-history strategy at its southern edge-of-range. Given that mating systems are intimately linked to standing levels of genetic variation, understanding the scope of sexual reproduction can illuminate the processes that shape genetic diversity. To describe and characterize edge-of-range eelgrass mating systems, developing seeds on flowering <em>Z. marina </em>shoots were genotyped from three meadows in Topsail, North Carolina. In all meadows, levels of multiple mating were high, with shoots pollinated by an average of 8 sires (range: 3 – 16). The number of fertilized seeds (i.e., reproductive success) varied significantly across sires (range: 1 – 25) and was positively correlated with both individual heterozygosity and self-fertilization. Outcrossing rates were high (approx. 70%) and varied across spathes. No clones were detected and kinship among sampled flowering shoots was low, supporting observed patterns of reproductive output. Given the role that genetic diversity plays in enhancing resistance to and resilience from ecological disturbance, disentangling the links between life-history, sexual reproduction and genetic variation will aid in informing the management and conservation of this key foundation species. </p>
The Blue carbon storage capacity of temperate eelgrass (Zostera marina) meadows- the dataset.
<p>Dataset used in the text and figures of article " The Blue carbon storage capacity of temperate eelgrass (<em>Zostera marina</em>) meadows".</p>
Data from: Genetic relatedness influences plant biomass accumulation in eelgrass (Zostera marina)
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Growth and flowering responses of eelgrass to simulated grazing and fecal addition by brant geese
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Data from: Eelgrass (Zostera marina) food web structure in different environmental settings
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Data from: Indirect effects of predators control herbivore richness and abundance in a benthic eelgrass (Zostera marina) mesograzer community
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Data from: Population structure and genetic diversity among eelgrass (Zostera marina) beds and depths in San Francisco Bay
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Mating system variation in the eelgrass, Zostera marina
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Data from: Variation of carbon contents in eelgrass (Zostera marina) sediments implied from depth profiles
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Data from: Population genetic structure of eelgrass (Zostera marina) on the Korean coast: current status and conservation implications for future management
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Data from: Macrobenthic assemblage structure in a cool-temperate intertidal dwarf-eelgrass bed in comparison to those in lower latitudes.
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Data from: Extensive fouling of eelgrass (<em>Zostera marina</em>) reproductive shoots by invasive tunicates – a potential threat to meadow reproductive output?
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Figure 1 in Comparison of non-native dwarf eelgrass (Zostera japonica) and native eelgrass (Zostera marina) distributions in a northeast Pacific estuary: 1997-2014
Figure 1: Study area in Yaquina Estuary, Oregon, USA.
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