Heterocope borealis in Norway - A copepod on the move, or on the edge of its natural distribution?

Koksvik, Jan Ivar; Jensen, Thomas Correll; Kjærstad, Gaute

doi:10.5324/fn.v37i0.2273

Cited by 3 publications

(2 citation statements)

References 11 publications

(15 reference statements)

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“…It was possible to relate this distribution to the main migration route of waterfowl from Siberia (Walseng et al, 1996). Similarly, single recordings of Heterocope borealis way off from its main area of distribution may be attributed to birds (Koksvik et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Zooplankton Diversity and Dispersal by Birds; Insights From Different Geographical Scales

2019

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Given the major ecological and evolutionary role of dispersal abilities for organisms, as well as the current interest in species' potential for further migration and colonization as a result of climatic changes or human-mediated invasions, our knowledge about dispersal abilities on spatial and temporal scales in many taxa is surprisingly limited. Zooplankton inhabit lakes and ponds that functionally are "aquatic islands" in the landscape, and both community composition and richness depend on their ability to disperse, and their post-dispersal colonization abilities. We here assess the diversity and dispersal of freshwater microcrustaceans based on three types of data; (1) > 2000 lakes on mainland Norway spanning a wide range in longitude, latitude and altitude, (2) a more limited number of ponds at Svalbard that are differently affected by migrating birds, and (3) immigration and colonization of recently constructed wetlands and man-made ponds. At all scales we discuss whether observed patterns in diversity can be explicitly linked to birds as vectors, or if confounding factors such as climate, productivity, age of locality-or other means of immigration, precludes conclusive evidence. The spatial patterns of zooplankton distribution strongly suggest that local sorting is a major determinant of richness and community composition. This sorting may not necessarily lead to similar community composition (the "quorum effect") however. Despite the fact that rapid colonization occurs at local scales, and that birds undoubtedly can transmit animals or resting stages, their role in modulating community structure and richness is still an unsettled issue due to the many confounding parameters. The fact that birds often play a dual role in shaping diversity and community composition, first by direct dispersal, and secondly via affecting post-dispersal species sorting by changing water quality and productivity, is an important aspect of zoochory. Direct experimental evidence (colonization with and without bird exclusion), or genetic analysis of zooplankton species along migration routes, would however be the only ways to establish firm evidence for this case of zoochory.

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Section: Discussionmentioning

confidence: 99%

Zooplankton Diversity and Dispersal by Birds; Insights From Different Geographical Scales

2019

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“…На Борнео E. bidens нормально развивается в водоемах при температуре 30-31 °С (Alekseev et al, 2016;Fefilova, Alekseev, 2018), в Пуэрто-Риковыживает в термальных водах (Reid, 2001 (Голдина, Овчинникова, 1964 (Bartholme et al, 2005) и водоплавающих птиц (Frisch et al, 2007). Копеподы на любых стадиях могут распространяться человеком при использовании лодок, а также ведер, канистр для перевоза воды и даже на орудиях отбора гидробиологических проб (Koksvik et al, 2017;Абрамова, Жулай, 2016 Глубокое в Московской области (Фефилова, 2017), Румынии (Damian-Georgescu, 1970), Новой Зеландии (Lewis, 1972), Борнео и Вьетнама (Apostolov, 2007;Feflova, Alekseev, 2018).…”

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Finding of the Thermophilic Harpacticoid Species Elaphoidella bidens (Schmeil 1893) in the Vychegda River (Northern Dvina, White Sea Basin)

Fefilova

2020

Journal of Siberian Federal University. Biology

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A harpacticoid copepod (Copepoda: Harpacticoida) species, Elaphoidella bidens, which was new for the North-East of European Russia, was found in the Vychegda River in July 2018. The species was identified in the area where heated wastewater is discharged from the wood-processing plant. The species was found in the extreme north of its range (61°48′ N). The present study compares the morphological, biological and ecological properties of this species with those of another native representative of the genus – E. gracilis. Comparison of morphology of the Vychegda E. bidens and individuals from tropical populations (New Zealand, Borneo, Vietnam) and populations of the temperate zone (Romania, Lake Glubokoe in Moscow region) showed that the structures of their antennae, body somites, swimming and rudimentary legs, and the caudal rami were similar in representatives of all populations. The fact that a thermophilic species was found for the first time in the northern region is indicative of potential changes in fauna diversity caused by thermal pollution or warming

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Diversity of Planktonic Fauna of the Pechora River Delta

Fefilova

Кононова

2019

Contemp. Probl. Ecol.

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Heterocope borealis in Norway - A copepod on the move, or on the edge of its natural distribution?

Cited by 3 publications

References 11 publications

Zooplankton Diversity and Dispersal by Birds; Insights From Different Geographical Scales

Zooplankton Diversity and Dispersal by Birds; Insights From Different Geographical Scales

Finding of the Thermophilic Harpacticoid Species Elaphoidella bidens (Schmeil 1893) in the Vychegda River (Northern Dvina, White Sea Basin)

Diversity of Planktonic Fauna of the Pechora River Delta

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