Citation:

PANGAEA.968499

Name: Pollen raw counts of sediment core LLCore2 from Lost Lake, British Columbia in 2020
Published: 2025-02-10
License: https://creativecommons.org/licenses/by/4.0/
Keywords: disturbance ecology; novel ecosystem; Paleoclimate; paleoecology; palynology; wildfire

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Published: 2025-02-10 • DOI registered: 2025-03-11

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Abstract:

This dataset provides pollen counts for the Holocene lacustrine sedimentary sequence retrieved from Lost Lake, Canada (49.4038, -122.9756, 235 m above sea level). The LLCore2 composite sediment core was collected from Lost Lake, in the Lower Seymour Conservation Reserve, North Vancouver, British Columbia, Canada in fall 2020. The composite core is composed of a 0.41 meter surface core, collected using a Glew gravity corer, and a 2.41 meter sediment core collected using a Livingstone piston corer. The chronology was established using 210Pb, 137Cs, and accelerator mass spectrometry 14C radiometric dating. 1-cm³ volumetric pollen samples were selected at 10-cm intervals along the core, and isolated according to Faegri and Iversen (1989) and Moore et al. (1991). Pollen and spores were counted using a Leica M205C stereomicroscope, and measured against depth (m) and age (ka BP). These data were collected to provide information about local and regional changes in ecosystem composition and fire activity throughout the Holocene in the Lower Mainland of British Columbia.

Keyword(s):

disturbance ecology; novel ecosystem; Paleoclimate; paleoecology; palynology; wildfire

Supplement to:

Duncan, Maggie; Pellatt, Marlow G; Kohfeld, Karen E (2025): Coastal moderation of Holocene fire and vegetation change on the Pacific coast of Canada. Frontiers in Ecology and Evolution, 13, https://doi.org/10.3389/fevo.2025.1504983

References:

Faegri, K; Iversen, J (1989): Textbook of pollen analysis. John Wiley & Sons., New York, US, fourth edition

Moore, Peter D; Webb, Judith A; Collinson, Margaret E (1991): Pollen Analysis. Blackwell scientific publications

Coverage:

Latitude: 49.403795 * Longitude: -122.975563

Date/Time Start: 2020-09-04T00:00:00 * Date/Time End: 2020-09-04T00:00:00

Minimum DEPTH, sediment/rock: 0.5 m * Maximum DEPTH, sediment/rock: 281.5 m

Event(s):

LLCore2 * Latitude: 49.403795 * Longitude: -122.975563 * Date/Time: 2020-09-04T00:00:00 * Elevation: 235.0 m * Location: North Vancouver, British Columbia, Canada * Method/Device: Piston corer (Livingstone)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Duncan, Maggie		Geocode
2	AGE	Age	ka BP	Duncan, Maggie	Age, 14C AMS	Geocode
3	Lycopodium (grains/tablet)	Lyc.g/t	#	Duncan, Maggie	Stereo microscope, Leica, m205C
4	Lycopodium (added)	Lyc(ad)	#	Duncan, Maggie	Stereo microscope, Leica, m205C
5	Pinus undifferentiated	Pinus undiff	#	Duncan, Maggie	Stereo microscope, Leica, m205C
6	Cupressaceae	Cupae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
7	Larix/Pseudotsuga	Lar/Pse	#	Duncan, Maggie	Stereo microscope, Leica, m205C
8	Tsuga heterophylla	T. heterophylla	#	Duncan, Maggie	Stereo microscope, Leica, m205C
9	Tsuga mertensiana	Tsu.m	#	Duncan, Maggie	Stereo microscope, Leica, m205C
10	Picea	Pic	#	Duncan, Maggie	Stereo microscope, Leica, m205C
11	Abies	Abi	#	Duncan, Maggie	Stereo microscope, Leica, m205C
12	Alnus rubra-type	A. rubra-T	#	Duncan, Maggie	Stereo microscope, Leica, m205C
13	Betula	Bet	#	Duncan, Maggie	Stereo microscope, Leica, m205C
14	Acer	Ace	#	Duncan, Maggie	Stereo microscope, Leica, m205C
15	Salix	Sal	#	Duncan, Maggie	Stereo microscope, Leica, m205C
16	Myrica	Myr	#	Duncan, Maggie	Stereo microscope, Leica, m205C
17	Corylus	Cor	#	Duncan, Maggie	Stereo microscope, Leica, m205C
18	Rosaceae	Rosae	#	Duncan, Maggie	Stereo microscope, Leica, m205C	<20 µm
19	Rosaceae	Rosae	#	Duncan, Maggie	Stereo microscope, Leica, m205C	>20 µm
20	Ericaceae	Eriae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
21	Sambucus	Sam	#	Duncan, Maggie	Stereo microscope, Leica, m205C
22	Cornus	Crn	#	Duncan, Maggie	Stereo microscope, Leica, m205C
23	Poaceae	Poac	#	Duncan, Maggie	Stereo microscope, Leica, m205C
24	Cyperaceae	Cypae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
25	Asteraceae-type	Astae-T	#	Duncan, Maggie	Stereo microscope, Leica, m205C
26	Artemisia	Art	#	Duncan, Maggie	Stereo microscope, Leica, m205C
27	Ambrosia	Amb	#	Duncan, Maggie	Stereo microscope, Leica, m205C
28	Apiaceae	Apiae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
29	Brassicaceae	Braae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
30	Caryophyllaceae	Cphae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
31	Chenopodiaceae	Cheae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
32	Liliaceae	Lilae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
33	Onagraceae	Onaae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
34	Saxifragaceae	Saxae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
35	Polygonum	Pol	#	Duncan, Maggie	Stereo microscope, Leica, m205C
36	Fabaceae	Fabae	#	Duncan, Maggie	Stereo microscope, Leica, m205C
37	Plantago	Pla	#	Duncan, Maggie	Stereo microscope, Leica, m205C
38	Potamogeton	Pot	#	Duncan, Maggie	Stereo microscope, Leica, m205C
39	Typha latifolia	Typ.l	#	Duncan, Maggie	Stereo microscope, Leica, m205C
40	Botrychium	Bot	#	Duncan, Maggie	Stereo microscope, Leica, m205C
41	Polypodium	Ppd	#	Duncan, Maggie	Stereo microscope, Leica, m205C
42	Pteridium-type	Ptd-T	#	Duncan, Maggie	Stereo microscope, Leica, m205C
43	Selaginella	Sel	#	Duncan, Maggie	Stereo microscope, Leica, m205C
44	Blechnum	Ble	#	Duncan, Maggie	Stereo microscope, Leica, m205C
45	Dryopteris	Drp	#	Duncan, Maggie	Stereo microscope, Leica, m205C
46	Athyrium filix-femina	Ath.f-f	#	Duncan, Maggie	Stereo microscope, Leica, m205C
47	Spores, monolete undifferentiated	mono.ud	#	Duncan, Maggie	Stereo microscope, Leica, m205C
48	Spores undifferentiated	Spo.ud	#	Duncan, Maggie	Stereo microscope, Leica, m205C
49	Pollen	Pollen	#	Duncan, Maggie	Calculated	Sum
50	Pollen and spores	Pollen+spores	#	Duncan, Maggie	Calculated	Sum

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1488 data points

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