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Author

Jennifer D. Wasko

Other affiliations: Assiniboine Community College
Bio: Jennifer D. Wasko is an academic researcher from Brandon University. The author has contributed to research in topics: Typha. The author has an hindex of 1, co-authored 1 publications receiving 1 citations. Previous affiliations of Jennifer D. Wasko include Assiniboine Community College.
Topics: Typha

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors used microsatellite markers of field-collected tissue samples from 131 wetlands spread over approximately 350,000 km2 in the Prairie Pothole Region (PPR) of North America to assess the distribution of hybrid T. × glauca relative to its parental species and examine the prevalence of F1 hybrids and advanced-generation hybrids.
Abstract: The Prairie Pothole Region (PPR) of North America has experienced extreme changes in wetland habitat due to proliferation of invasive plants. Typha × glauca is a highly competitive hybrid between native T. latifolia and non-native T. angustifolia, and it is likely the predominant taxon in PPR wetlands. Genetics-based studies are limited, and distributions are poorly known for the first-generation (F1) hybrid and advanced-generation hybrids from F1 mating. Information pertaining to the distribution of T. × glauca could benefit efforts to understand the mechanisms of its spread and to develop management strategies to limit hybrid expansion and preserve progenitors. We used microsatellite markers of field-collected tissue samples from 131 wetlands spread over approximately 350,000 km2 in the PPR to assess the distribution of hybrid T. × glauca relative to its parental species and to examine the prevalence of F1 hybrids and advanced-generation hybrids. Typha × glauca was found in over 80% of wetlands throughout the PPR, compared to 26 and 18% of wetlands with T. latifolia and T. angustifolia, respectively. Advanced-generation hybrids were more common than F1 hybrids, suggesting that hybridization is not a recent phenomenon. Hybrids were significantly taller than T. latifolia, indicating heterosis. Only 7% of sampled individual genets were pure T. latifolia. These results suggest that T. × glauca is pervasive throughout the PPR and may spread independently of both parents. In addition, limited prevalence of native T. latifolia indicates the need for active management to preserve the species.

7 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article , the authors used spectral imagery analysis and species distribution modeling to find that T. × glauca appears to be the more abundant taxon, suggesting heterosis may facilitate this invasion.
Abstract: The early detection of invasive species is an important predictor of management success. Non-native narrow-leaved cattail (Typha angustifolia) has been detected in the Fraser River Estuary (FRE) in recent decades, but questions around their degree of establishment, and the potential emergence of hybrid cattail (Typha × glauca), remain unanswered. This study models the current and potential future distribution of non-native cattail in the FRE using a combination of spectral imagery analysis and species distribution modeling. Contrary to our expectation, we find that non-native cattails are widespread, currently occupying approximately 4 or 50 ha of FRE tidal marshes. Though never formally recorded in the estuary previously, T. × glauca appears to be the more abundant taxon, suggesting heterosis may be facilitating this invasion. We describe these taxa as cryptic invasive species, as their resemblance to native cattail (Typha latifolia) likely inhibited their detection. In our species distribution model, we distinguish between site suitability (ability to establish and persist) and susceptibility (risk of colonization when suitable). Our model predicts the scale of this invasion may increase over time, as 29% and 20% of the estuary has moderate or high suitability and susceptibility probabilities, respectively, while 16% and 24% of these habitats are currently occupied. Estuary-wide containment and eradication are unlikely given the extent of this invasion. Consequently, we recommend management prioritize monitoring and early eradication in areas of high conservation and cultural value. This study highlights the vulnerability of estuaries to cryptic invasions and the invasibility of Pacific Northwest estuaries by non-native cattail.

1 citations

Posted ContentDOI
22 Apr 2023-bioRxiv
TL;DR: In this paper , a suite of genomic resources for Typha, a macrophyte genus essential to wetlands that is also becoming an increasingly problematic biological invader in numerous regions worldwide, were developed.
Abstract: A critical knowledge gap in freshwater plants research is the lack of genetic resources necessary to answer fundamental questions about their demographic histories, adaptation, and taxonomy. One example of this is Typha, a macrophyte genus essential to wetlands that is also becoming an increasingly problematic biological invader in numerous regions worldwide; while important insights have been discovered for this genus, currently available genetic markers are insufficient to resolve its phylogenetic relationships, population structure, and hybridization dynamics. We performed a cost and time–accessible library preparation for high–throughput sequencing to develop a suite of genomic resources for Typha. Genome– wide nuclear SNPs of 140 Typha samples from North America, temperate Eurasia and Africa revealed three independent genetic clusters corresponding to T. angustifolia, T. domingensis and T. latifolia. Data from ∼40% of the nuclear genome was obtained, permitting the characterization of 119,324 nuclear diagnostic markers (SNPs that differentiate the three species). A reference–guided workflow to reconstruct whole–chloroplast–genome sequences was implemented, recovering ∼60% of the genome per sample. Three genetic lineages were identified from the cpDNA phylogenetic analysis, agreeing with those determined from nrDNA. With a cost below 15 USD per sample and a processing time of two hours for the library preparation, this is a rapid and cost–effective protocol for population genomic studies. The genomic locations of diagnostic markers and the chloroplast sequences produced in this study will be permanent resources that can be incorporated into future studies of Typha, a globally important and evolutionarily dynamic genus.

1 citations

Journal ArticleDOI
TL;DR: In this article , plot-scale and landscape-scale CH4 emissions from the Prairie Pothole Region (PPR), North America's largest wetland complex, were modeled using an exceptionally large CH4 flux dataset and remotely sensed information.
Abstract: Natural methane (CH4) emissions from aquatic ecosystems may rise because of human-induced climate warming, although the magnitude of increase is highly uncertain. Using an exceptionally large CH4 flux dataset (~19,000 chamber measurements) and remotely sensed information, we modeled plot- and landscape-scale wetland CH4 emissions from the Prairie Pothole Region (PPR), North America’s largest wetland complex. Plot-scale CH4 emissions were driven by hydrology, temperature, vegetation, and wetland size. Historically, landscape-scale PPR wetland CH4 emissions were largely dependent on total wetland extent. However, regardless of future wetland extent, PPR CH4 emissions are predicted to increase by two- or threefold by 2100 under moderate or severe warming scenarios, respectively. Our findings suggest that international efforts to decrease atmospheric CH4 concentrations should jointly account for anthropogenic and natural emissions to maintain climate mitigation targets to the end of the century.

1 citations