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f | 1 | { | f | 1 | { |
2 | "Creator": "Paul B Hamilton, Scott J Hutchinson, R Timothy | 2 | "Creator": "Paul B Hamilton, Scott J Hutchinson, R Timothy | ||
3 | Patterson, Jennifer M Galloway, Nawaf A Nasser, Christopher Spence, | 3 | Patterson, Jennifer M Galloway, Nawaf A Nasser, Christopher Spence, | ||
4 | Mike J Palmer, and Hendrik Falck", | 4 | Mike J Palmer, and Hendrik Falck", | ||
5 | "author": null, | 5 | "author": null, | ||
6 | "author_email": null, | 6 | "author_email": null, | ||
7 | "creator_user_id": "3d05e0de-1423-4655-b300-645717582c74", | 7 | "creator_user_id": "3d05e0de-1423-4655-b300-645717582c74", | ||
8 | "description": "", | 8 | "description": "", | ||
9 | "funding_program": "", | 9 | "funding_program": "", | ||
10 | "geographic_range": [ | 10 | "geographic_range": [ | ||
11 | "North Slave" | 11 | "North Slave" | ||
12 | ], | 12 | ], | ||
13 | "groups": [], | 13 | "groups": [], | ||
14 | "id": "bd2a2a43-b683-4894-9f79-ff46108862b7", | 14 | "id": "bd2a2a43-b683-4894-9f79-ff46108862b7", | ||
15 | "isopen": false, | 15 | "isopen": false, | ||
16 | "license_id": "notspecified", | 16 | "license_id": "notspecified", | ||
17 | "license_title": "License Not Specified", | 17 | "license_title": "License Not Specified", | ||
18 | "local_relevance": "This study investigates climate change over the | 18 | "local_relevance": "This study investigates climate change over the | ||
19 | past 2800 years from a small lake near Yellowknife in the NWT.", | 19 | past 2800 years from a small lake near Yellowknife in the NWT.", | ||
20 | "maintainer": null, | 20 | "maintainer": null, | ||
21 | "maintainer_email": null, | 21 | "maintainer_email": null, | ||
22 | "metadata_created": "2023-12-06T18:30:50.809569", | 22 | "metadata_created": "2023-12-06T18:30:50.809569", | ||
n | 23 | "metadata_modified": "2023-12-06T18:31:37.256853", | n | 23 | "metadata_modified": "2023-12-06T18:31:37.400736", |
24 | "metatags": "Paleolimnology,Lake,Diatoms,Holocene,Yellowknife", | 24 | "metatags": "Paleolimnology,Lake,Diatoms,Holocene,Yellowknife", | ||
25 | "modified_date": "2021-04-25", | 25 | "modified_date": "2021-04-25", | ||
26 | "name": | 26 | "name": | ||
27 | olocene-diatom-community-response-to-climate-driven-chemical-changes", | 27 | olocene-diatom-community-response-to-climate-driven-chemical-changes", | ||
28 | "notes": "The paleolimnological record of diatoms and climate, | 28 | "notes": "The paleolimnological record of diatoms and climate, | ||
29 | spanning the last 2800\u2009years, was investigated in a small | 29 | spanning the last 2800\u2009years, was investigated in a small | ||
30 | subarctic lake (Pocket Lake).", | 30 | subarctic lake (Pocket Lake).", | ||
31 | "num_resources": 1, | 31 | "num_resources": 1, | ||
32 | "num_tags": 5, | 32 | "num_tags": 5, | ||
33 | "organization": { | 33 | "organization": { | ||
34 | "approval_status": "approved", | 34 | "approval_status": "approved", | ||
35 | "created": "2023-11-27T15:29:16.450990", | 35 | "created": "2023-11-27T15:29:16.450990", | ||
36 | "description": "", | 36 | "description": "", | ||
37 | "id": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | 37 | "id": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | ||
38 | "image_url": "", | 38 | "image_url": "", | ||
39 | "is_organization": true, | 39 | "is_organization": true, | ||
40 | "name": "academic-journal", | 40 | "name": "academic-journal", | ||
41 | "state": "active", | 41 | "state": "active", | ||
42 | "title": "Academic Journal", | 42 | "title": "Academic Journal", | ||
43 | "type": "organization" | 43 | "type": "organization" | ||
44 | }, | 44 | }, | ||
45 | "owner_org": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | 45 | "owner_org": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | ||
46 | "private": false, | 46 | "private": false, | ||
47 | "relationships_as_object": [], | 47 | "relationships_as_object": [], | ||
48 | "relationships_as_subject": [], | 48 | "relationships_as_subject": [], | ||
49 | "release_date": "2021-04-25", | 49 | "release_date": "2021-04-25", | ||
50 | "resources": [ | 50 | "resources": [ | ||
51 | { | 51 | { | ||
52 | "cache_last_updated": null, | 52 | "cache_last_updated": null, | ||
53 | "cache_url": null, | 53 | "cache_url": null, | ||
54 | "created": "2023-12-06T18:31:37.274740", | 54 | "created": "2023-12-06T18:31:37.274740", | ||
55 | "datastore_active": false, | 55 | "datastore_active": false, | ||
56 | "datastore_contains_all_records_of_source_file": false, | 56 | "datastore_contains_all_records_of_source_file": false, | ||
57 | "description": null, | 57 | "description": null, | ||
58 | "format": "", | 58 | "format": "", | ||
59 | "hash": "", | 59 | "hash": "", | ||
60 | "id": "ab89d844-787f-4192-bdf2-8fb7b449689b", | 60 | "id": "ab89d844-787f-4192-bdf2-8fb7b449689b", | ||
61 | "last_modified": null, | 61 | "last_modified": null, | ||
n | 62 | "metadata_modified": "2023-12-06T18:31:37.262925", | n | 62 | "metadata_modified": "2023-12-06T18:31:37.407453", |
63 | "mimetype": null, | 63 | "mimetype": null, | ||
64 | "mimetype_inner": null, | 64 | "mimetype_inner": null, | ||
65 | "name": "Late-Holocene diatom community response to climate | 65 | "name": "Late-Holocene diatom community response to climate | ||
66 | driven chemical changes in a small, subarctic lake, Northwest | 66 | driven chemical changes in a small, subarctic lake, Northwest | ||
67 | Territories, Canada", | 67 | Territories, Canada", | ||
68 | "package_id": "bd2a2a43-b683-4894-9f79-ff46108862b7", | 68 | "package_id": "bd2a2a43-b683-4894-9f79-ff46108862b7", | ||
69 | "position": 0, | 69 | "position": 0, | ||
70 | "resource_type": null, | 70 | "resource_type": null, | ||
71 | "size": null, | 71 | "size": null, | ||
72 | "state": "active", | 72 | "state": "active", | ||
73 | "url": | 73 | "url": | ||
74 | "https://journals.sagepub.com/doi/10.1177/09596836211003214", | 74 | "https://journals.sagepub.com/doi/10.1177/09596836211003214", | ||
75 | "url_type": null | 75 | "url_type": null | ||
76 | } | 76 | } | ||
77 | ], | 77 | ], | ||
t | 78 | "state": "draft", | t | 78 | "state": "active", |
79 | "summary": "The paleolimnological record of diatoms and climate, | 79 | "summary": "The paleolimnological record of diatoms and climate, | ||
80 | spanning the last 2800\u2009years, was investigated in a small | 80 | spanning the last 2800\u2009years, was investigated in a small | ||
81 | subarctic lake (Pocket Lake) that from AD 1948 to 2004 was | 81 | subarctic lake (Pocket Lake) that from AD 1948 to 2004 was | ||
82 | contaminated by gold smelting waste. An age-depth model was | 82 | contaminated by gold smelting waste. An age-depth model was | ||
83 | constructed using a combination of 210Pb, 14C, and tephra to determine | 83 | constructed using a combination of 210Pb, 14C, and tephra to determine | ||
84 | a 2800\u2009year history of lake ontogeny (natural aging), biological | 84 | a 2800\u2009year history of lake ontogeny (natural aging), biological | ||
85 | diversity, and regional climate variability. Diatoms form six strong | 85 | diversity, and regional climate variability. Diatoms form six strong | ||
86 | paleoecological assemblages over time in response to changes in local | 86 | paleoecological assemblages over time in response to changes in local | ||
87 | hydrological and sedimentological conditions (including metals). | 87 | hydrological and sedimentological conditions (including metals). | ||
88 | Selected environmental variables explained 28.8% of the variance in | 88 | Selected environmental variables explained 28.8% of the variance in | ||
89 | the diatom assemblages, with Fe, Ca, and sediment end member | 89 | the diatom assemblages, with Fe, Ca, and sediment end member | ||
90 | distribution being important indicators. The diatom assemblages | 90 | distribution being important indicators. The diatom assemblages | ||
91 | correlated to the Iron Age Cold Epoch (2800\u20132300\u2009cal BP), | 91 | correlated to the Iron Age Cold Epoch (2800\u20132300\u2009cal BP), | ||
92 | Roman Warm Period (2250\u20131610\u2009cal BP), Dark Age Cold Period | 92 | Roman Warm Period (2250\u20131610\u2009cal BP), Dark Age Cold Period | ||
93 | (1500\u20131050\u2009cal BP), Medieval Climate Anomaly (ca. | 93 | (1500\u20131050\u2009cal BP), Medieval Climate Anomaly (ca. | ||
94 | 1100\u2013800\u2009cal BP), and the Little Ice Age | 94 | 1100\u2013800\u2009cal BP), and the Little Ice Age | ||
95 | (800\u2013200\u2009cal BP). The disappearance of Staurosira venter | 95 | (800\u2013200\u2009cal BP). The disappearance of Staurosira venter | ||
96 | highlights the change from the Iron Age Cold Epoch to the Roman Warm | 96 | highlights the change from the Iron Age Cold Epoch to the Roman Warm | ||
97 | Period. After deposition of the White River Ash (833\u2013850 CE; | 97 | Period. After deposition of the White River Ash (833\u2013850 CE; | ||
98 | 1117\u20131100\u2009cal BP), transition to circumneutral conditions | 98 | 1117\u20131100\u2009cal BP), transition to circumneutral conditions | ||
99 | was followed in tandem by a transition to planktic influenced | 99 | was followed in tandem by a transition to planktic influenced | ||
100 | communities. Ten discrete peaks of Cu, Pb, and Zn were observed and | 100 | communities. Ten discrete peaks of Cu, Pb, and Zn were observed and | ||
101 | attributed to soluble mobility from catchment soils through enhanced | 101 | attributed to soluble mobility from catchment soils through enhanced | ||
102 | seepage and spring snowmelt. The prominent metal spikes were aligned | 102 | seepage and spring snowmelt. The prominent metal spikes were aligned | ||
103 | with increases in Brachysira neoexilis. Downward mobilization of | 103 | with increases in Brachysira neoexilis. Downward mobilization of | ||
104 | arsenic and antimony from contaminated surficial sediments highlight | 104 | arsenic and antimony from contaminated surficial sediments highlight | ||
105 | the problem of post depositional industrial contamination of | 105 | the problem of post depositional industrial contamination of | ||
106 | paleosediments. Results demonstrate that paleoclimatic changes in the | 106 | paleosediments. Results demonstrate that paleoclimatic changes in the | ||
107 | region, modulated by solar radiation, impacted temperature and | 107 | region, modulated by solar radiation, impacted temperature and | ||
108 | precipitation in the lake catchment, influencing temporal shifts in | 108 | precipitation in the lake catchment, influencing temporal shifts in | ||
109 | diatom ecology. Changes in diatom taxa richness provided valuable | 109 | diatom ecology. Changes in diatom taxa richness provided valuable | ||
110 | information on the relative influence of water quality (planktic taxa) | 110 | information on the relative influence of water quality (planktic taxa) | ||
111 | and sediment input (benthic taxa). The diatom assemblage succession | 111 | and sediment input (benthic taxa). The diatom assemblage succession | ||
112 | also provides evidence that natural aging over time has played a role | 112 | also provides evidence that natural aging over time has played a role | ||
113 | in the ecological evolution of the lake.", | 113 | in the ecological evolution of the lake.", | ||
114 | "tags": [ | 114 | "tags": [ | ||
115 | { | 115 | { | ||
116 | "display_name": "Diatoms", | 116 | "display_name": "Diatoms", | ||
117 | "id": "d5d23619-88a8-4220-9d44-82bd0ea20938", | 117 | "id": "d5d23619-88a8-4220-9d44-82bd0ea20938", | ||
118 | "name": "Diatoms", | 118 | "name": "Diatoms", | ||
119 | "state": "active", | 119 | "state": "active", | ||
120 | "vocabulary_id": null | 120 | "vocabulary_id": null | ||
121 | }, | 121 | }, | ||
122 | { | 122 | { | ||
123 | "display_name": "Holocene", | 123 | "display_name": "Holocene", | ||
124 | "id": "95bce701-914c-40d5-9607-ba58eb6e6446", | 124 | "id": "95bce701-914c-40d5-9607-ba58eb6e6446", | ||
125 | "name": "Holocene", | 125 | "name": "Holocene", | ||
126 | "state": "active", | 126 | "state": "active", | ||
127 | "vocabulary_id": null | 127 | "vocabulary_id": null | ||
128 | }, | 128 | }, | ||
129 | { | 129 | { | ||
130 | "display_name": "Lake", | 130 | "display_name": "Lake", | ||
131 | "id": "7396036b-24e9-4f28-a79d-9169488e1c4e", | 131 | "id": "7396036b-24e9-4f28-a79d-9169488e1c4e", | ||
132 | "name": "Lake", | 132 | "name": "Lake", | ||
133 | "state": "active", | 133 | "state": "active", | ||
134 | "vocabulary_id": null | 134 | "vocabulary_id": null | ||
135 | }, | 135 | }, | ||
136 | { | 136 | { | ||
137 | "display_name": "Paleolimnology", | 137 | "display_name": "Paleolimnology", | ||
138 | "id": "a44fc132-3aa0-4c0b-91fc-e4c8154d58fe", | 138 | "id": "a44fc132-3aa0-4c0b-91fc-e4c8154d58fe", | ||
139 | "name": "Paleolimnology", | 139 | "name": "Paleolimnology", | ||
140 | "state": "active", | 140 | "state": "active", | ||
141 | "vocabulary_id": null | 141 | "vocabulary_id": null | ||
142 | }, | 142 | }, | ||
143 | { | 143 | { | ||
144 | "display_name": "Yellowknife", | 144 | "display_name": "Yellowknife", | ||
145 | "id": "e3b118d1-7af8-400e-a5f7-8776c185b15c", | 145 | "id": "e3b118d1-7af8-400e-a5f7-8776c185b15c", | ||
146 | "name": "Yellowknife", | 146 | "name": "Yellowknife", | ||
147 | "state": "active", | 147 | "state": "active", | ||
148 | "vocabulary_id": null | 148 | "vocabulary_id": null | ||
149 | } | 149 | } | ||
150 | ], | 150 | ], | ||
151 | "title": "Late-Holocene diatom community response to climate driven | 151 | "title": "Late-Holocene diatom community response to climate driven | ||
152 | chemical changes in a small, subarctic lake, Northwest Territories, | 152 | chemical changes in a small, subarctic lake, Northwest Territories, | ||
153 | Canada", | 153 | Canada", | ||
154 | "type": "dataset", | 154 | "type": "dataset", | ||
155 | "url": null, | 155 | "url": null, | ||
156 | "version": null | 156 | "version": null | ||
157 | } | 157 | } |