The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Michail I. Gladyshev - One of the best experts on this subject based on the ideXlab platform.
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Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions
Freshwater Biology, 2016Co-Authors: Nadezhda N. Sushchik, Yuri A. Yurchenko, Olga E. Belevich, Galina S. Kalachova, A. A. Kolmakova, Michail I. GladyshevAbstract:Summary Aquatic systems are considered to be a main source of essential long-chain n-3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest-steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass-specific contents of essential long-chain PUFA of the n-3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.
Nadezhda N. Sushchik - One of the best experts on this subject based on the ideXlab platform.
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Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions
Freshwater Biology, 2016Co-Authors: Nadezhda N. Sushchik, Yuri A. Yurchenko, Olga E. Belevich, Galina S. Kalachova, A. A. Kolmakova, Michail I. GladyshevAbstract:Summary Aquatic systems are considered to be a main source of essential long-chain n-3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest-steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass-specific contents of essential long-chain PUFA of the n-3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.
María Cecilia Melo - One of the best experts on this subject based on the ideXlab platform.
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Biodiversidad de Heteroptera (Hemiptera) acuáticas y semiacuáticas de la Patagonia argentina Biodiversity of aquatic and semiaquatic Heteroptera (Hemiptera) from Argentinean Patagonia
Sociedad Entomológica Argentina, 2009Co-Authors: María Cecilia MeloAbstract:Las Heteroptera acuáticas y semiacuáticas (infraórdenes Nepomorpha, Gerromorpha y Leptopodomorpha) no presentan una alta diversidad específica en Argentina, hasta el momento se han registrado 208 especies. Carlos Berg en 1881, publica el primer trabajo que hace referencia a heterópteros de la Patagonia, en el que lista los insectos recolectados durante la Campaña del Desierto. Desde principios de la década del '60, las Heteroptera acuáticas han sido estudiadas principalmente por A.O. Bachmann y colaboradores. Hasta el momento, se han registrado 36 especies pertenecientes a las familias Corixidae, Notonectidae, Belostomatidae, Gelastocoridae, Naucoridae y Nepidae (Nepomorpha); Hydrometridae, Veliidae y Mesoveliidae (Gerromorpha), y Saldidae (Leptopodomorpha). La mayoría de estas especies extienden su distribución geográfica hacia el norte de la Argentina, excepto Sigara (Tropocorixa) egbertae Hungerford, S. (T.) trimaculata (Le Guillou), S. (T.) vuriloche Bachmann, S. (T.) forciceps (Spinola), Trichocorixa milicorum Bachmann (Corixidae), Notonecta (Paranecta) virescens Blanchard, N. (P.) fazi Hungerford, N. (P.) vereertbruggheni Hungerford (Notonectidae), Pseudosaldula bergi (Haglund) y P. paralia (Torres), P. angusta (Drake & Carvalho), P. sola (Drake & Carvalho), P. doeringi (Drake & Carvalho) y Saldula differata Drake & Carvalho (Saldidae), que son exclusivas de la Patagonia. El conocimiento de la diversidad de Heteroptera acuáticas y semiacuáticas en la Patagonia es bueno y, por los datos recogidos, su estado de conservación es aceptable ya que aproximadamente el 40% de la especies encontradas en áreas naturales protegidas son exclusivas de la región y representan cerca del 40 % del número de especies exclusivas de la Patagonia.The aquatic and semiaquatic Heteroptera (infraorders Nepomorpha, Gerromorpha and Leptopodomorpha) show a low diversity in Argentina; up to now 208 species have been recorded. In 1881 Carlos Berg provided the first reference to Heteroptera from Patagonia (Río Negro). Since the early 60's the aquatic Heteroptera have been studied by A.O. Bachmann and his students. Up to now there are 36 recorded species belonging to the families Corixidae, Notonectidae, Belostomatidae, Gelastocoridae, Naucoridae, and Nepidae (Nepomorpha); Hydrometridae, Veliidae, and Mesoveliidae (Gerromorpha), and Saldidae (Leptopodomorpha). Most of these species extend their geographic distribution to northern Argentina except Sigara (Tropocorixa) egbertae Hungerford, S. (T.) trimaculata (Le Guillou), S. (T.) vuriloche Bachmann, S. (T.) forciceps (Spinola), Trichocorixa milicorum Bachmann (Corixidae); Notonecta (Paranecta) virescens Blanchard, N. (P.) fazi Hungerford, N. (P.) vereertbruggheni Hungerford (Notonectidae); Pseudosaldula bergi (Haglund), P. paralia (Torres), P. angusta (Drake & Carvalho), P. sola (Drake & Carvalho), P. doeringi (Drake & Carvalho), and Saldula differata Drake & Carvalho (Saldidae), which are exclusive from Patagonia. The knowledge of the Patagonian aquatic and semiaquatic Heteroptera is accurate. According to the gathered data the state of conservation is acceptable; almost 40% of the species found in natural protected areas correspond to exclusive species from this region, representing almost the 40 % of the exclusive species from Patagonia
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Biodiversidad de Heteroptera (Hemiptera) acuáticas y semiacuáticas de la Patagonia argentina
Sociedad Entomológica Argentina, 2009Co-Authors: María Cecilia MeloAbstract:Las Heteroptera acuáticas y semiacuáticas (infraórdenes Nepomorpha, Gerromorpha y Leptopodomorpha) no presentan una alta diversidad específica en Argentina, hasta el momento se han registrado 208 especies. Carlos Berg en 1881, publica el primer trabajo que hace referencia a heterópteros de la Patagonia, en el que lista los insectos recolectados durante la Campaña del Desierto. Desde principios de la década del ’60, las Heteroptera acuáticas han sido estudiadas principalmente por A.O. Bachmann y colaboradores. Hasta el momento, se han registrado 36 especies pertenecientes a las familias Corixidae, Notonectidae, Belostomatidae, Gelastocoridae, Naucoridae y Nepidae (Nepomorpha); Hydrometridae, Veliidae y Mesoveliidae (Gerromorpha), y Saldidae (Leptopodomorpha). La mayoría de estas especies extienden su distribución geográfica hacia el norte de la Argentina, excepto Sigara (Tropocorixa) egbertae Hungerford, S. (T.) trimaculata (Le Guillou), S. (T.) vuriloche Bachmann, S. (T.) forciceps (Spinola), Trichocorixa milicorum Bachmann (Corixidae), Notonecta (Paranecta) virescens Blanchard, N. (P.) fazi Hungerford, N. (P.) vereertbruggheni Hungerford (Notonectidae), Pseudosaldula bergi (Haglund) y P. paralia (Torres), P. angusta (Drake & Carvalho), P. sola (Drake & Carvalho), P. doeringi (Drake & Carvalho) y Saldula differata Drake & Carvalho (Saldidae), que son exclusivas de la Patagonia. El conocimiento de la diversidad de Heteroptera acuáticas y semiacuáticas en la Patagonia es bueno y, por los datos recogidos, su estado de conservación es aceptable ya que aproximadamente el 40% de la especies encontradas en áreas naturales protegidas son exclusivas de la región y representan cerca del 40 % del número de especies exclusivas de la Patagonia
Yuri A. Yurchenko - One of the best experts on this subject based on the ideXlab platform.
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Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions
Freshwater Biology, 2016Co-Authors: Nadezhda N. Sushchik, Yuri A. Yurchenko, Olga E. Belevich, Galina S. Kalachova, A. A. Kolmakova, Michail I. GladyshevAbstract:Summary Aquatic systems are considered to be a main source of essential long-chain n-3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest-steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass-specific contents of essential long-chain PUFA of the n-3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.
Olga E. Belevich - One of the best experts on this subject based on the ideXlab platform.
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Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions
Freshwater Biology, 2016Co-Authors: Nadezhda N. Sushchik, Yuri A. Yurchenko, Olga E. Belevich, Galina S. Kalachova, A. A. Kolmakova, Michail I. GladyshevAbstract:Summary Aquatic systems are considered to be a main source of essential long-chain n-3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest-steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass-specific contents of essential long-chain PUFA of the n-3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.
