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Dive into the research topics where Gerald Parolly is active.

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Featured researches published by Gerald Parolly.


PLOS ONE | 2012

How to Handle Speciose Clades? Mass Taxon-Sampling as a Strategy towards Illuminating the Natural History of Campanula (Campanuloideae)

Guilhem Mansion; Gerald Parolly; Andrew A. Crowl; Evgeny V. Mavrodiev; Nico Cellinese; Marine Oganesian; Katharina Fraunhofer; Georgia Kamari; Dimitrios Phitos; Rosemarie C. Haberle; Galip Akaydin; Nursel Ikinci; Thomas Raus; Thomas Borsch

Background Speciose clades usually harbor species with a broad spectrum of adaptive strategies and complex distribution patterns, and thus constitute ideal systems to disentangle biotic and abiotic causes underlying species diversification. The delimitation of such study systems to test evolutionary hypotheses is difficult because they often rely on artificial genus concepts as starting points. One of the most prominent examples is the bellflower genus Campanula with some 420 species, but up to 600 species when including all lineages to which Campanula is paraphyletic. We generated a large alignment of petD group II intron sequences to include more than 70% of described species as a reference. By comparison with partial data sets we could then assess the impact of selective taxon sampling strategies on phylogenetic reconstruction and subsequent evolutionary conclusions. Methodology/Principal Findings Phylogenetic analyses based on maximum parsimony (PAUP, PRAP), Bayesian inference (MrBayes), and maximum likelihood (RAxML) were first carried out on the large reference data set (D680). Parameters including tree topology, branch support, and age estimates, were then compared to those obtained from smaller data sets resulting from “classification-guided” (D088) and “phylogeny-guided sampling” (D101). Analyses of D088 failed to fully recover the phylogenetic diversity in Campanula, whereas D101 inferred significantly different branch support and age estimates. Conclusions/Significance A short genomic region with high phylogenetic utility allowed us to easily generate a comprehensive phylogenetic framework for the speciose Campanula clade. Our approach recovered 17 well-supported and circumscribed sub-lineages. Knowing these will be instrumental for developing more specific evolutionary hypotheses and guide future research, we highlight the predictive value of a mass taxon-sampling strategy as a first essential step towards illuminating the detailed evolutionary history of diverse clades.


Willdenowia | 2006

Two new species of Centaurea (Compositae, Cardueae) from Turkey

Gerhard Wagenitz; Frank H. Hellwig; Gerald Parolly; Ludwig Martins

Abstract Wagenitz, G., Hellwig, F. H., Parolly, G. & Martins, L.: Two new species of Centaurea (Compositae, Cardueae) from Turkey. — Willdenowia 36 (Special Issue): 423–435. — ISSN 0511-9618;


Journal of Bryology | 2006

New national and regional bryophyte records, 13

T. L. Blockeel; H. Bednarek-Ochyra; Ryszard Ochyra; Petra Hájková; Michal Hájek; J. Kuĉera; Kürschner; Frank Müller; G. Olivá; Gerald Parolly; R D Porley; Susana Rams; Ana Séneca; Cecília Sérgio; C. C. Townsend; O. Tyshchenko; Cristiana Vieira

New national and regional bryophyte records, including new data from Bulgaria gathered during GAAV project.


Journal of Bryology | 2006

New national and regional bryophyte records, 12

T.L. Blockeel; A. Chlebicki; Petra Hájková; Michal Hájek; Zbyněk Hradílek; Harald Kürschner; Ryszard Ochyra; Gerald Parolly; Víťezslav Plášek; D. Quandt; C.C. Townsend; Alain Vanderpoorten

New national and regional bryophyte records, including new data from Bulgaria gathered during GAAV project.


Willdenowia | 2001

Seseli hartvigii (Apiaceae),a new name forS. ramosissimumHartvig & Strid, with carpological and ecological notes on this species

Gerald Parolly; Birgit Nordt

Abstract Parolly, G. & Nordt, B.: Seseli hartvigii (Apiaceae), a new name for S. ramosissimum Hartvig & Strid, with carpological and ecological notes on this species. — Willdenowia 31: 87–93. 2001. — ISSN 0511-9618. The new name Seseli hartvigii replaces the illegitimate later homonym S. ramosissimum of 1987 for a species hitherto only known from the type collection originating from the Çalbalı Dağı W of Antalya, Turkey. New material allows the description and scanning electron micrographs of the previously unknown fruit, and suggests placing S. hartvigii close to the Greek S. (sect. Seseli) aroanicum. Distribution (including three new localities) and ecosociology of this rare subalpine plant of wind-swept rocky habitats of the Beydağları (W Taurus Mts) are outlined.


Journal of Bryology | 2008

New national and regional bryophyte records, 19

T. L. Blockeel; Gökhan Abay; V. A. Bakalin; Halina Bednarek-Ochyra; Ryszard Ochyra; Barbaros Çetin; B Cykowska; E. Fuertes; Helena Hespanhol; D. T. Holyoak; Zbyněk Hradílek; T. Keçeli; Harald Kürschner; Juan Larraín; David G. Long; Gerald Parolly; J. Piątek; M. Piątek; Susana Rams; Rosa M. Ros; Ana Séneca; Cecília Sérgio; Z. Soldaán; S. Ştefanuţ; Güray Uyar; Jiří Váňa; Ozlem Tonguc Yayintas

(2008). New national and regional bryophyte records, 19. Journal of Bryology: Vol. 30, No. 3, pp. 231-237.


Willdenowia | 2004

The flora and vegetation of Bakırlı Dağı (Western Taurus Mts, Turkey), including annotations on critical taxa of the Taurus range

Özkan Eren; M. Gokçeoglu; Gerald Parolly

Abstract Eren, Ö., Gökçeoğlu, M. & Parolly, G.: The flora and vegetation of Bakırlı Dağı (Western Taurus Mts, Turkey), including annotations on critical taxa of the Taurus range. — Willdenowia 34: 463–503. — ISSN 0511-9618;


Willdenowia | 2006

Contributions to the flora of Turkey, 1.

Gerald Parolly; Özkan Eren

Abstract Parolly, G. & Eren, Ö. (ed.): Contributions to the flora of Turkey, 2. — Willdenowia 37: 243–271. — ISSN 0511-9618;


Willdenowia | 2003

Scorzonera karabelensis (Compositae,) a new species from SW Anatolia, with a key to the subscapigerous Scorzonera species in Turkey

Gerald Parolly; Norbert Kilian

Abstract Parolly, G. & Kilian, N.: Scorzonera karabelensis (Compositae), a new species from SW Anatolia, with a key to the subscapigerous Scorzonera species in Turkey. — Willdenowia 33: 327–335. — ISSN 0511-9618;


Willdenowia | 2004

Oreopoa gen. novum, two other new grasses and further remarkable records from Turkey

Gerald Parolly; Hildemar Scholz

Abstract Parolly, G. & Scholz, H.: Oreopoa gen. novum, two other new grasses and further remarkable records from Turkey. — Willdenowia 34: 145–158. — ISSN 0511-9618;

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Birgit Nordt

Free University of Berlin

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Özkan Eren

Adnan Menderes University

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Kit Tan

University of Copenhagen

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Ryszard Ochyra

Polish Academy of Sciences

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Thomas Borsch

Free University of Berlin

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Thomas Raus

Free University of Berlin

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