Environmental changes during the last millennium recorded in subfossil Cladocera, diatoms and sediment geochemistry from Lake El Sol (Central Mexico)

Zawisza, Edyta; Cuna, Estela; Caballero, Margarita; Ruíz-Fernández, Ana Carolina; Szeroczyńska, Krystyna; Woszczyk, Michał; Zawiska, Izabela

doi:10.7306/gq.1311

Cited by 6 publications

(9 citation statements)

References 43 publications

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“…Hence, there is still a lot of uncertainty and lack of knowledge about Cladocera taxonomy and populations in Central America. Furthermore, studies of Cladocera fossils are even more rare (Zawisza et al 2012(Zawisza et al , 2014(Zawisza et al , 2017Szeroczyńska et al 2015;Wojewódka et al 2016). Subfossil Cladocera analysis in Central America is complicated because well-established taxonomy are crucial for accurately identifying remains.…”

Section: Discussionmentioning

confidence: 99%

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A guide to the identification of subfossil non-chydorid Cladocera (Crustacea: Branchiopoda) from lake sediments of Central America and the Yucatan Peninsula, Mexico: part I

2020

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Cladocera (Crustacea: Branchiopoda) quickly respond to changes in environmental conditions and their remains are usually found in large amounts in lacustrine sediments, which make them an important biological proxy in paleolimnological studies. Variations in species composition have been used to infer paleo-climate and paleo-environmental variables including lake depth, eutrophication, and deforestation. However, despite their advantages as bioindicators in the study of past conditions, they are underutilized in paleolimnological research in Central America due to limited knowledge about their diversity and the morphological differences between the subfossil remains of different taxa. In order to address this issue, we described and analyzed cladoceran remains from 56 waterbodies located in Mexico, Guatemala, El Salvador, and Honduras. Here, we provide a description of the remains from 10 different taxa that belong to the Sididae, Bosminidae, Daphniidae, Macrothricidae, and Ilyocryptidae families. Keywords Non-chydorid Cladocera Á Subfossil remains Á Guide Á Paleolimnology Á Central America Á Yucatan Peninsula

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Section: Discussionmentioning

confidence: 99%

“…There has been an increasing interest in involving Cladocera in paleoreconstructions of climate and environmental changes in the Neotropical zone (Zawisza et al 2012(Zawisza et al , 2017Cuna et al 2014;Szeroczyńska et al 2015). However, current knowledge on the cladoceran communities of this area is limited.…”

Section: Introductionmentioning

confidence: 99%

A guide to the identification of subfossil non-chydorid Cladocera (Crustacea: Branchiopoda) from lake sediments of Central America and the Yucatan Peninsula, Mexico: part I

2020

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“…Regarding Cladocera, surface sediment analyses show that Allonela pulchella Herrick is preserved only in the sediments from Lake La Luna, but both lakes contain two littoral endemic species, Alona manueli Sinev & Zawisza and Ilyocryptus nevadensis Cervantes-Martinez, Gutierrez-Aguirre & Elías-Gutiérrez, as well as the littoral Chydorus cf. sphaericus Müller and planktonic Daphnia longispina -group Müller (Cervantes-Martinez et al, 2000; Sinev and Zawisza, 2013; Zawisza et al, 2017). Another important difference between both lakes is that currently La Luna has no fish, but El Sol contains rainbow trout, most likely introduced around 1940–1950 (Cuna et al, 2014).…”

Section: Site Descriptionmentioning

confidence: 99%

The Holocene history of a tropical high-altitude lake in central Mexico

et al. 2020

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High-altitude lakes are sensitive to modern and past climate changes. Given their low-water temperatures, alkalinity, and nutrient levels, small climatic differences can strongly affect their water chemistry, and/or biodiversity. In central Mexico, there are only two high-altitude lakes, and both are within the crater of the Nevado de Toluca volcano. Here, we present a paleolimnological record from one of these lakes: La Luna. Previous paleoenvironmental work showed that it was sensitive to the Little Ice Age (LIA) cooling. Our results show that sediment accumulation began ~6900 to 6100 cal. yr BP under periglacial conditions and that lake conditions were established ~6000 cal. yr BP. One tephra layer was dated to ~5600 cal. yr BP, with no evidence of more recent volcanic activity. The early stages of this lake (6000–4700 cal. yr BP) contained Cladocera and diatom assemblages with different species composition than modern assemblages. This early stage community structure was related to more mesic conditions and cooler winters inferred by the high abundance of planktonic Aulacoseira nivaloides and of Chydorus cf. sphaericus. The establishment of modern limnological conditions after 4700 cal. yr BP is inferred from Cladocera and diatom assemblages similar to recent samples. A reduction in A. nivaloides and low magnetic-susceptibility values suggest lower lakes levels, a trend consistent with lower available moisture in central Mexico after 4000 cal. yr BP. The rest of the sequence shows the impact of two cold periods, the first one around 3000 cal. yr BP, identified by a new increase in Chydorus cf. sphaericus. The second was the larger impact associated with the LIA (AD 1350–1910), and an increase in Cavinula pseudoscutiformis and Pinnularia microstauron suggesting an increase in lake water pH. Also, organic matter and photosynthetic pigments increased during this period showing an increase in nutrient levels and productivity. Finally, the coldest interval during the LIA (AD 1570–1890) is identified by an important reduction in arboreal pollen concentration which points to a wider environmental impact of this cold event.

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“…The effects of continental versus Atlantic climate were also demonstrated by results of research conducted on lakes in northern Poland Zawisza 2005, 2011a;Zawisza and Szeroczyńska 2007;Drzymulska et al 2015). Subfossil Cladocera were also used to address the occurrence of cold events associated with the PDO, 8.2-ka, and the Little Ice Age (Szeroczyńska and Zawisza 2011b;Fiłoc et al 2017;Zawisza et al 2017). Lakes in warm, tropical areas were analysed in cooperation with Edyta Zawisza and Margarita Caballero (UNAM, Mexico) as part of joint research projects Zawisza et al 2017;Hamerlik et al 2018).…”

Section: Bilateral Foreign Projectsmentioning

confidence: 99%

“…Subfossil Cladocera were also used to address the occurrence of cold events associated with the PDO, 8.2-ka, and the Little Ice Age (Szeroczyńska and Zawisza 2011b;Fiłoc et al 2017;Zawisza et al 2017). Lakes in warm, tropical areas were analysed in cooperation with Edyta Zawisza and Margarita Caballero (UNAM, Mexico) as part of joint research projects Zawisza et al 2017;Hamerlik et al 2018). Mexican Lakes Sol and Luna, located in the crater of the Nevado de Toluca volcano, and several cenotes (sinkhole lakes), were examined in pilot studies.…”

Section: Bilateral Foreign Projectsmentioning

confidence: 99%

Environmental changes during the last millennium recorded in subfossil Cladocera, diatoms and sediment geochemistry from Lake El Sol (Central Mexico)

Cited by 6 publications

References 43 publications

A guide to the identification of subfossil non-chydorid Cladocera (Crustacea: Branchiopoda) from lake sediments of Central America and the Yucatan Peninsula, Mexico: part I

A guide to the identification of subfossil non-chydorid Cladocera (Crustacea: Branchiopoda) from lake sediments of Central America and the Yucatan Peninsula, Mexico: part I

The Holocene history of a tropical high-altitude lake in central Mexico

Forty years of my adventures with Cladocera remains: retrospection on my scientific work

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