Assessment of drought over the past two millennia using near-shore sediment cores from a Canadian boreal lake

Haig, Heather A.; Kingsbury, Melanie V.; Laird, Kathleen R.; Leavitt, Peter R.; Laing, Robyn J.; Cumming, Brian F.

doi:10.1007/s10933-013-9712-z

Cited by 12 publications

(34 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under conditions of a stable epilimnion, the flagellated chrysophytes are at an advantage compared to more turbulent conditions during which their flagellar motility is far more hampered. Several studies have associated increases in scaled chrysophytes in recent decades to greater strength and duration of thermal stratification driven by warming (Haig et al 2013;Ginn et al 2010;Paterson et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Climate-driven changes in lakes from the Peruvian Andes

et al. 2015

View full text Add to dashboard Cite

The consequences of recent warming in the Andes have been dramatic, most iconically visualized by the rapid retreat of tropical mountain glaciers. Of all the ecosystems in the tropical Andes, lakes have received amongst the least research attention. We examined subfossil diatom and chrysophyte assemblages to chronicle recent (past *150 years) ecological change in lakes from the Peruvian Andes. We recorded abrupt increases in planktonic diatoms and scaled chrysophytes beginning in the early 1900s. These changes are consistent with enhanced periods of thermal stratification, brought on by rising temperatures that have been documented throughout the Andes. These data indicate that ecological and likely physical limnological changes associated with Anthropocene warming are already under way in tropical high mountain lakes.

show abstract

Section: Discussionmentioning

confidence: 99%

Climate-driven changes in lakes from the Peruvian Andes

et al. 2015

View full text Add to dashboard Cite

show abstract

“…; Haig et al . ), but so far has been restricted to shallow lakes <100 ha with simple basin morphologies (e.g. low‐angled slopes <4%; Digerfeldt ; Pribyl & Shuman ).…”

mentioning

confidence: 99%

Multiple drivers of Holocene lake level changes at a lowland lake in northeastern Germany

Dietze

Słowiński

Zawiska

et al. 2016

Boreas

View full text Add to dashboard Cite

ELISABETH DIETZE, MICHAŁ SŁOWIŃSKI, IZABELA ZAWISKA, GEORG VEH AND ACHIM BRAUER 2 3Dietze, E., Słowiński, M., Zawiska, I., Veh, G., Brauer, A.: Multiple drivers of Holocene lake 4 level changes at a lowland lake in northeastern GermanyMany German lakes experienced significant water level declines in the last decades that are 7 not fully understood due to the short observation period. At a typical northeastern German 8 groundwater-fed lake with complex basin morphology, an acoustic sub-bottom profile was 9 analysed together with a transect of five sediment cores, which were correlated using multiple 10 proxies (sediment facies, µ-XRF, macrofossils, subfossil Cladocera). Shifts in the boundary 11 between sand and mud deposition were controlled by lake level changes, and hence, allowed traced continuously using the Calcium-record. During high lake levels, massive organic muds 15 were deposited in the deepest lake basin, whereas lower lake levels isolated the sub-basins 16 and allowed carbonate deposition. 17During the beginning of the Holocene (>9700 cal. a BP), lake levels were high likely due to final 18 melting of permafrost and dead-ice remains. The establishment of water use intensive Pinus 19 forests caused generally low (3-4 m below modern) but fluctuating lake levels (9700-6400 cal. 20 a BP). Afterwards, the lake showed an increasing trend and reached a short-term high-stand 21 ~5000 cal. a BP (4 m above modern). At the transition towards a cooler and wetter late 22 Holocene, forests dominated by Quercus and Fagus and initial human impact likely 23 contributed more positively to groundwater recharge. Lake levels remained high between 24 3800 and 800 cal. a BP, but the lake system was not sensitive enough to record short-term 25 fluctuations during this period. Lake level changes were recorded again, when humans 26 profoundly affected the drainage system, land cover and lake trophy. Hence changes, e.g. macrofossils and the position of the sediment limit, i.e., the upper limit for the 68 predominant deposition of organic-rich mud related to sediment focusing (Digerfeldt 1986; 69 Dearing 1997). The "Digerfeldt approach" has provided reliable lake level reconstructions 70 across the globe (e.g. Punning et al. 2004; Shuman et al. 2010;Haig et al. 2013), but so far has 71 been restricted to shallow lakes <100 ha with simple basin morphologies (e.g. low-angled In the central European lowlands, hydrological reconstructions primarily rely on records from 74 small lakes or peat bogs (Gałka et al. 2013(Gałka et al. , 2014 Słowiński et al. 2015). In northeastern Germany, a high sensitivity of lakes to Holocene hydrological changes has been suggested (e.g. 76Lampe et al. 2009; Kaiser et al. 2012 Kaiser et al. , 2014b Küster et al. 2014); however, well-dated lake 77 level reconstructions remained restricted to certain times. 78Lake Fürstenseer See, a typical groundwater fed lake with complex morphology has 79 already showed pronounced changes in lake level and size during the instrumental period 80 (Germer et ...

show abstract

“…, Haig et al. ). Studies suggest that shifts in small benthic Fragilaria , Aulacoseira , and Discostella species may also reflect changes in thermal stratification and/or lake mixing regimes (Rühland et al.…”

Section: Discussionmentioning

confidence: 99%

“…Climate also impacts lakes directly, as effective moisture availability (e.g., major droughts) could influence lake levels (Haig et al. ), changes in temperature could alter ice‐cover dynamics, thermal stratification and/or circulation patterns of a lake (Rühland et al. ), and wind activity could affect the mixing regime of a lake (Hausmann et al.…”

Section: Introductionmentioning

confidence: 99%

An 11,000‐yr record of diatom assemblage responses to climate and terrestrial vegetation changes, southwestern Québec

Neil

Gajewski

2018

Ecosphere

View full text Add to dashboard Cite

A high‐resolution diatom sequence was developed from continuously laminated lake sediments in southwestern Québec, which spanned the Holocene (~11,000 yr). General and species‐specific changes in the diatom record were synchronous with patterns of vegetation succession inferred from regional palynological studies, demonstrating significant influences of terrestrial ecosystems on lake water chemistry and aquatic biota. Principal components analysis was used to identify three major diatom biostratigraphic zones corresponding broadly to early, mid‐, and late Holocene climate intervals. Benthic alkaliphilus diatom taxa were abundant when the landscape was a Picea‐dominated woodland in the early Holocene (11.1–8.0 ka), and when climate conditions were inferred as relatively cool and dry. In the mid‐Holocene (8.0–3.6 ka), warmer temperatures resulted in a stabilization of soils and forests in the catchment area. Shade‐tolerant tree species (Tsuga, Fagus, and Betula) increased during this time, and planktonic diatom taxa (Discostella stelligera and Fragilaria tenera) were abundant in the lake. The well‐known decline in Tsuga across eastern North America between 6.0 and 5.0 ka corresponded to a shift toward more nutrient‐rich lake conditions for several centuries, indicated by an increase in benthic diatom taxa and a lower ratio of chrysophytes relative to diatoms. Neoglacial cooling in the late Holocene (3.6 ka to present) triggered an initial decline in D. stelligera, which later recovered as a result of nutrient inputs that were associated with increased abundances of hardwood, deciduous species (Betula and Alnus) in the catchment. In addition to providing a high‐resolution record of lake ontogeny for the region, the full Holocene record from this lake adds a new perspective on the spatial extent of regional aridity during the Medieval Warm Period (1.2–0.8 ka).

show abstract

Assessment of drought over the past two millennia using near-shore sediment cores from a Canadian boreal lake

Cited by 12 publications

References 53 publications

Climate-driven changes in lakes from the Peruvian Andes

Climate-driven changes in lakes from the Peruvian Andes

Multiple drivers of Holocene lake level changes at a lowland lake in northeastern Germany

An 11,000‐yr record of diatom assemblage responses to climate and terrestrial vegetation changes, southwestern Québec

Contact Info

Product

Resources

About