Výsledky vyhledávání - "Tobias Lehmann"

Akademický článek

Rediscovery after 25 years – first photographic documentation and DNA barcoding of the deep-sea pycnogonid species Ascorhynchus hippos Turpaeva, 1994 (Chelicerata, Pycnogonida, Ascorhynchidae) from the Kuril-Kamchatka Trench

Autor: Lisa Wolf, Roland R. Melzer, Tobias Lehmann

Publikováno v: Zoosystematics and Evolution, Vol 98, Iss 2, Pp 257-262 (2022)

The female specimen of Ascorhynchus hippos Turpaeva, 1994 was collected in 2015 during the Russian-German deep-sea expedition SokhoBio (Sea of Okhotsk Biodiversity Studies) at the abyssal western slope of the Kuril-Kamchatka Trench at a depth of 4469

Externí odkaz: https://doaj.org/article/b6ffd9f348c445819e1fb23399a2c238

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Akademický článek

COVID-19 financial support to small businesses in Switzerland: evaluation and outlook

Autor: Marius Brülhart, Rafael Lalive, Tobias Lehmann, Michael Siegenthaler

Publikováno v: Swiss Journal of Economics and Statistics, Vol 156, Iss 1, Pp 1-13 (2020)

Abstract We analyse small businesses’ recourse to public support measures during the COVID-19 crisis using a survey of 1011 self-employed workers and small business owners in Switzerland. We find that “objective” measures of lockdown affectedne

Externí odkaz: https://doaj.org/article/3f27f30d36cd4f359932b928d88a0c2f

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Akademický článek

Also looking like Limulus? – retinula axons and visual neuropils of Amblypygi (whip spiders)

Autor: Tobias Lehmann, Roland R. Melzer

Publikováno v: Frontiers in Zoology, Vol 15, Iss 1, Pp 1-14 (2018)

Abstract Background Only a few studies have examined the visual systems of Amblypygi (whip spiders) until now. To get new insights suitable for phylogenetic analysis we studied the axonal trajectories and neuropil architecture of the visual systems o

Externí odkaz: https://doaj.org/article/559db88fea3b442785abd36d775e6137

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Akademický článek

Feeding ecology in sea spiders (Arthropoda: Pycnogonida): what do we know?

Autor: Lars Dietz, Jana S. Dömel, Florian Leese, Tobias Lehmann, Roland R. Melzer

Publikováno v: Frontiers in Zoology, Vol 15, Iss 1, Pp 1-16 (2018)

Abstract Sea spiders (Pycnogonida) are a widespread and phylogenetically important group of marine arthropods. However, their biology remains understudied, and detailed information about their feeding ecology is difficult to find. Observations on pyc

Externí odkaz: https://doaj.org/article/d1385196f91b42888b4d7a401609f19b

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Akademický článek

Common littoral pycnogonids of the Mediterranean Sea

Autor: Tobias Lehmann, Martin Heß, Roland Melzer

Publikováno v: Zoosystematics and Evolution, Vol 90, Iss 2, Pp 163-224 (2014)

In the present study 21 littoral pycnogonid species from 5 families are analysed: Ammotheidae (9 species), Callipallenidae (5 species), Endeidae (2 species), Phoxichilidiidae (3 species), and Pycnogonidae (2 species). The material was mainly taken fr

Externí odkaz: https://doaj.org/article/6dd5b196f76f4cd5b6f405d71bd6a1c0

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Akademický článek

Wiring a periscope--ocelli, retinula axons, visual neuropils and the ancestrality of sea spiders.

Autor: Tobias Lehmann, Martin Hess, Roland R Melzer

Publikováno v: PLoS ONE, Vol 7, Iss 1, p e30474 (2012)

The Pycnogonida or sea spiders are cryptic, eight-legged arthropods with four median ocelli in a 'periscope' or eye tubercle. In older attempts at reconstructing phylogeny they were Arthropoda incertae sedis, but recent molecular trees placed them as

Externí odkaz: https://doaj.org/article/b68508d532c14d6eb1d61d89481f3913

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