A Palaeoecological Record of Recent Environmental Change at Big Creek Marsh, Long Point, Lake Erie

Bunting, M. Jane; Duthie, H. C.; Campbell, Daniel; Warner, Barry G.; Turner, Laurie J.

doi:10.1016/s0380-1330(97)70918-3

Cited by 15 publications

(9 citation statements)

References 18 publications

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“…Increased percentages of acidophilic taxa can also indicate marginal wetland expansion during low-lake phases (e.g. Bunting et al, 1997;Shkarpa, 2006). In African lakes, diatom-inferred pH signals usually result in the opposite effect.…”

Section: Nutrient Environmentmentioning

confidence: 99%

Diatoms as indicators of water level change in freshwater lakes

Wolin¹,

Stone²

The Diatoms

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100

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Section: Nutrient Environmentmentioning

confidence: 99%

Diatoms as indicators of water level change in freshwater lakes

Wolin¹,

Stone²

The Diatoms

Self Cite

100

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“…Wild rice still grows behind Long Point and has been there for at least 200 years [4]. Several Poaceae peaks in a pollen diagram from Redhead Pond at Point Pelee probably reflect variations in abundance of wild rice in response to changing lake levels [16].…”

Section: People and Wild Ricementioning

confidence: 99%

Identifying fossil wild rice (Zizania) pollen from Cootes Paradise, Ontario: a new approach using scanning electron microscopy

Lee

Davis

Smith

et al. 2004

Journal of Archaeological Science

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“…Fossil‐pollen data reflect relative vegetation abundance at the time of deposition and can illustrate plant community shifts over time (Moore, ) and could provide the historical data necessary to evaluate photo‐interpretation accuracy. Paleoecological studies typically examine changes in vegetation at the centennial or millennial timescales (Bunting et al ., ; Finkelstein & Davis, ). However, 210 Pb and 137 Cs sediment dating and pollen core analysis together can be used to identify more recent vegetation shifts (50–100 yr bp ) (Goldberg, ; Jackson, ).…”

Section: Introductionmentioning

confidence: 99%

Reconstructing plant invasions using historical aerial imagery and pollen core analysis: Typha in the Laurentian Great Lakes

Lishawa

Treering

Vail

et al. 2012

Diversity and Distributions

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Aim Determining the spatial‐temporal spread of an invasive plant is vital for understanding long‐term impacts. However, invasions have rarely been directly documented given the resources required and the need for substantial foresight. One method widely used is historical photography interpretation, but this can be hard to verify. We attempt to improve this method by linking historical aerial photos to a paleobotanical analysis of pollen cores. Location Laurentian Great Lakes coastal wetlands, United States of America. Methods We chose invasive cattail ( Typha) as our model species because it is identifiable from aerial imagery and has persistent, identifiable pollen, and its ecological impacts appear to be time‐dependent. We used Geographic Information Systems, aerial photo‐interpretation and field verification to post‐dict the invasion history of Typha in several wetland ecosystems. Using 210 Pb and 137 Cs sediment dating and pollen classification, we correlated the temporal dominance of Typha to our estimates of per cent coverage at one site. The pollen record was then used to estimate the Typha invasion dynamics for dates earlier than those for which aerial photos were available. Results Typha spread through time in all study wetlands. Typha pollen dominance increased through time corresponding with increased spatial dominance. Hybrid cattail, T. × glauca increased in pollen abundance relative to T. angustifolia pollen through time. Main conclusions This study illustrates the value of generating historical invasion maps with publically available aerial imagery and linking these maps with paleobotanical data to study recent (< 100 years) invasions. We determined rates of Typha expansion in two coastal wetland types, validated our mapping methods and modelled the relationship between pollen abundance and wetland coverage, enhancing the temporal precision and breadth of analyses. Our methodology should be replicable with similar invasive plant species. The combination of pollen records and historical photography promises to be a valuable additional tool for determining invasion dynamics.

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A Palaeoecological Record of Recent Environmental Change at Big Creek Marsh, Long Point, Lake Erie

Cited by 15 publications

References 18 publications

Diatoms as indicators of water level change in freshwater lakes

Diatoms as indicators of water level change in freshwater lakes

Identifying fossil wild rice (Zizania) pollen from Cootes Paradise, Ontario: a new approach using scanning electron microscopy

Reconstructing plant invasions using historical aerial imagery and pollen core analysis: Typha in the Laurentian Great Lakes

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