21 Works

Mycoheterotrophic plants living on arbuscular mycorrhizal fungi are generally enriched in 13C, 15N, and 2H isotopes

Vincent Merckx, Sofia Gomes, Judith Kehl & Gerhard Gebauer
Fully mycoheterotrophic plants are thought to obtain carbon exclusively from their root-associated fungal partners. The general enrichment of these plants in the heavy isotopes 13C and 15N suggests that fungi are the main nutrient source for these plants. Yet, the majority of studies have targeted mycoheterotrophic plants associated with ectomycorrhizal, orchid mycorrhizal and saprotrophic fungi, while mycoheterotrophic plants living on arbuscular mycorrhizal fungi remain understudied. Here, we sampled 13 species of arbuscular mycorrhizal fully mycoheterotrophic...

Extensive cytonuclear discordance in a crested newt from the Balkan Peninsula glacial refugium

Ben Wielstra & Jan W. Arntzen
Integrating multilocus data and species distribution modelling into phylogeography allows mtDNA-based scenarios to be fine-tuned. We address the question of whether extensive mtDNA substructuring in the crested newt Triturus macedonicus from the Balkan Peninsula is matched in the nuclear genome. We determine the intraspecific population structure based on 52 nuclear DNA markers and project a species distribution model on climate layers for the Last Glacial Maximum. We show that T. macedonicus accumulated nuclear DNA population...

Museomics for reconstructing historical floristic exchanges: Divergence of Stone Oaks across Wallacea

Joeri Strijk, Hoang Thi Bin Thi Bin, Ferry Slik, Rahayu Sukri, Yoshihisa Suyama, Shuichiro Tagane, Jan Wieringa, Tetsukazu Yahara & Damien Hinsinger
Natural history collections and tropical tree diversity are treasure troves of biological and evolutionary information, but its accessibility is impeded by several properties. DNA in historical specimens generally occurs in a highly fragmented state, complicating the recovery of high-grade genetic material for scientific studies. Our understanding of hyperdiverse, wide-spread tree assemblages suffers from patchy information on distributions, phenology and paucity of diagnostic characters. This prohibits rapid identification and the strengthening of taxonomic frameworks and in...

CT and 3D Data from: A large Middle Devonian eubrachythoracid ‘placoderm’ (Arthrodira) jaw from northern Gondwana

Melina Jobbins, Martin Rücklin, Thodoris Argyriou & Christian Klug
Leptodontichthys ziregensis is a newly described eubrachythoracid arthrodire from the Middle Devonian of Morocco. Only the posterior superognathal is preserved, it possesses features which were, so far, seen in Late Devonian forms. The jaw bone presents two sets of teeth, one lateral and one posterior, with dentinous tissue, pulp cavities and vascular canals preserved. The CT scans provided here are the ones used for the study. The complete jaw data was used for the overall...

First come, first served: possible role for priority effects in marine populations under different degrees of dispersal potential

Christiaan De Leeuw, Katja Peijnenburg, Rosemary Gillespie, Diede Maas, Naoto Hanzawa, Yosephine Tuti, Abdul Toha, Ludi Aji & Leontine Becking
Aim Studying clearly delineated populations in marine lakes, islands of sea, we investigate the interplay of habitat size, immigration, and priority effects in shaping marine population genetic structure. Location Marine lakes and coastal locations in Indonesia, Palau, Papua New-Guinea and Australia. Taxon Mussels (Mytillidae, Brachidontes spp.) Methods Populations were sampled from four coastal locations and 22 marine lakes of similar age (~8,000 years), yet differing in size (0.04 - 4.7 km2) and degree of connection...

Modelling the distribution of Amazonian tree species in response to long-term climate change during the mid-late Holocene

Vitor Gomes, Francis Mayle, William Gosling, Ima Vieira, Rafael Salomão & Hans Ter Steege
Aim: To (a) assess the environmental suitability for rainforest tree species of Moraceae and Urticaceae across Amazonia during the Mid-Late Holocene and (b) determine the extent to which their distributions increased in response to long-term climate change over this period. Location: Amazonia. Methods: We used MaxEnt and inverse distance weighting interpolation to produce environmental suitability and relative abundance models at 0.5-degree resolution for tree species of Moraceae and Urticaceae, based on natural history collections and...

Climate-diversity relationships underlying cross-taxon diversity of the Africa fauna and their implications for conservation

Stefan Pinkert, Dirk Zeuss, Viola Clausnitzer, Jens Kipping, Klaas-Douwe B. Dijkstra, Stefan Brunzel & Roland Brandl
Aim: Many taxa show remarkable similarities in their diversity patterns and these similarities are commonly used to define large-scale conservation priorities. Here, we investigated the relative importance of contemporary climate and climate change since the Last Glacial Maximum for determining the species richness and rarity patterns of four animal taxa. We assessed the extent to which diversity patterns are congruent across taxa because of similar responses to these climatic aspects and we identify regions that...

Dark septate endophytes and arbuscular mycorrhizal fungi (Paris-morphotype) affect the stable isotope composition of ‘classically’ non-mycorrhizal plants

Philipp Giesemann, David Eichenberg, Marcus Stöckel, Lukas Seifert, Sofia Gomes, Vincent Merckx & Gerhard Gebauer
The vast majority of terrestrial plants exchange nutrients with fungal partners forming different mycorrhizal types. The minority of plants considered as non-mycorrhizal, however, are not necessarily free of any fungi, but are frequently colonized by elusive fungal endophytes, such as dark septate endophytes (DSE) or fine root endophytes (FRE). While a functional role of FRE in improvement of nutrient gain was recently elucidated, the function of DSE is still in discussion and was here addressed...

Stacking microscopy images of the pteropod Limacina bulimoides

Le Qin Choo, Thijs M. P. Bal, Erica Goetze & Katja T. C. A. Peijnenburg
Pteropods, a group of holoplanktonic gastropods, are regarded as bioindicators of the effects of ocean acidification on open ocean ecosystems, because their thin aragonitic shells are susceptible to dissolution. While there have been recent efforts to address their capacity for physiological acclimation, it is also important to gain predictive understanding of their ability to adapt to future ocean conditions. However, little is known about the levels of genetic variation and large scale population structuring of...

An interpolated biogeographic framework for tropical Africa using plant species distributions and the physical environment

Cicely Marshall, Jan Wieringa & William Hawthorne
Aim: Existing phytogeographic frameworks for tropical Africa lack either spatial completeness, unit definitions smaller than the regional scale, or a quantitative approach. We investigate whether physical environmental variables can be used to interpolate floristically defined vegetation units, presenting an interpolated, hierarchical, quantitative phytogeographic framework for tropical Africa, which is compared to previously defined regions. Location: Tropical mainland Africa 24°N to 24°S. Taxon: 31,046 vascular plant species and infraspecific taxa. Methods: We calculate a betasim dissimilarity...

Complexity within an oil palm monoculture: the effects of habitat variability and rainfall on adult dragonfly (Odonata) communities.

Sarah H. Luke, Andreas Dwi Advento, Rory A. Dow, Anak Agung Ketut Aryawan, Holly Barclay, Amy E. Eycott, Julie K. Hinsch, Candra Kurniawan, Mohammad Naim, Darren J. Mann, Pujianto Pujianto, Dedi Purnomo, T. Dzulfikar S. Rambe, Eleanor M. Slade, Soeprapto Soeprapto, Sudharto Ps, Suhardi Suhardi, Ribka Sionita Tarigan, Resti Wahyuningsih, Rudy Harto Widodo, Jean-Pierre Caliman, Jake L. Snaddon, William A. Foster & Edgar C. Turner
Recent expansion of oil palm agriculture has resulted in loss of forest habitat and forest-dependent species. However, large numbers of species – particularly insects – can persist within plantations. This study focuses on Odonata (dragonflies and damselflies): a charismatic indicator taxon, and a potentially valuable pest control agent. We surveyed adult Odonata populations biannually over three years within an industrial oil palm plantation in Sumatra, Indonesia. We assessed the effects of rainfall (including an El...

Weda, a new genus with two new species of Euphorbiaceae-Crotonoideae from Halmahera (North Moluccas, Indonesia) and phylogenetic relationships of the Australasian tribe Ricinocarpeae

Peter Van Welzen, Susana Arias Guerrero, Deby Arifiani, Tjut Bangun, Roderick Bouman, Marcel Eurlings, Iska Gushilman, Peter Philipson, Iris Tabak, Esmée Winkel & Kenneth Wurdack
Two unknown Euphorbiaceae were discovered during the environmental impact study for a proposed nickel mine behind Weda Bay on Halmahera in the North Moluccas (Maluku Utara Province) of Indonesia. Morphological comparisons and molecular phylogenetic analyses using four markers (plastid trnL-F and rbcL, and nuclear ribosomal ITS and ETS) indicated they should be recognized as constituting a new, distinct genus of two species, which are described and illustrated here as Weda fragarioides and W. lutea. The...

Image stack, PLY-files and a NEX-file accompanying: A new symmoriiform from the Late Devonian of Morocco: novel jaw function in ancient sharks

Linda Frey, Michael I. Coates, Kristen Tietjen, Martin Rücklin & Christian Klug
We describe the small chondrichthyan Ferromirum oukherbouchi n.gen. et sp. from the Famennian (Late Devonian) of the Maïder region in Morocco. This chondrichthyan is exceptionally well preserved and displays not only mineralized soft tissues but also undeformed cartilages of the head, gills, and shoulder girdle. A reconstruction of the head using 3D-prints revealed a previously unknown kind of jaw articulation. Here, we make the original cropped image stack and PLY-files of the single cartilaginous elements...

Data from: The origin of the legumes is a complex paleopolyploid phylogenomic tangle closely associated with the Cretaceous-Paleogene (K-Pg) mass extinction event

Erik Koenen, Dario Ojeda, Freek Bakker, Jan Wieringa, Catherine Kidner, Olivier Hardy, Toby Pennington, Patrick Herendeen, Anne Bruneau & Colin Hughes
The consequences of the Cretaceous-Paleogene (K-Pg) boundary (KPB) mass extinction for the evolution of plant diversity remain poorly understood, even though evolutionary turnover of plant lineages at the KPB is central to understanding assembly of the Cenozoic biota. The apparent concentration of whole genome duplication (WGD) events around the KPB may have played a role in survival and subsequent diversification of plant lineages. To gain new insights into the origins of Cenozoic biodiversity, we examine...

Diversification in evolutionary arenas – assessment and synthesis

Nicolai M. Nürk, H. Peter Linder, Renske E. Onstein, Matthew J. Larcombe, Colin E. Hughes, Laura Piñeiro Fernández, Philipp M. Schlüter, Luis Valente, Carl Beierkuhnlein, Vanessa Cutts, Michael J. Donoghue, Erika J. Edwards, Richard Field, Suzette G.A. Flantua, Steven I. Higgins, Anke Jentsch, Sigrid Liede-Schumann & Michael D. Pirie
Understanding how and why rates of evolutionary diversification vary is a central issue in evolutionary biology, ecology and biogeography. The concept of adaptive radiation has attracted much interest, but is metaphorical and verbal in nature, making it difficult to quantitatively compare different evolutionary lineages or geographic regions. In addition, the causes of evolutionary stasis are relatively neglected. Here we review the central concepts in the evolutionary diversification literature and bring these together by proposing a...

Drivers of amphibian population dynamics and asynchrony at local and regional scales

Hugo Cayuela, Richard A. Griffiths, Nurul Zakaria, Jan W. Arntzen, Pauline Priol, Jean-Paul Léna, Aurélien Besnard & Pierre Joly
Identifying the drivers of population fluctuations in spatially distinct populations remains a significant challenge for ecologists. Whereas regional climatic factors may generate population synchrony (i.e., the Moran effect), local factors including the level of density-dependence may reduce the level of synchrony. Although divergences in the scaling of population synchrony and spatial environmental variation have been observed, the regulatory factors that underlie such mismatches are poorly understood. Few previous studies have investigated how density-dependent processes and...

Bayesian tip-dated phylogenetics in paleontology: topological effects and stratigraphic fit

Benedict King
The incorporation of stratigraphic data into phylogenetic analysis has a long history of debate, but is not currently standard practice for paleontologists. Bayesian tip-dated (or morphological clock) phylogenetic methods have returned these arguments to the spotlight, but how tip dating affects the recovery of evolutionary relationships has yet to be fully explored. Here I show, through analysis of several datasets with multiple phylogenetic methods, that topologies produced by tip dating are outliers when compared to...

Data from: A critical analysis of the potential for EU Common Agricultural Policy measures to support wild pollinators on farmland

Lorna Cole, David Kleijn, Lynn Dicks, Jane Stout, Simon Potts, Matthias Albrecht, Mario Balzan, Ignasi Bartomeus, Penelope Bebeli, Danilo Bevk, Jacobus Biesmeijer, Róbert Chlebo, Anželika Dautartė, Nikolaos Emmanouil, Chris Hartfield, John Holland, Andrea Holzschuh, Nieke Knoben, Anikó Kovács-Hostyánszki, Yael Mandelik, Heleni Panou, Robert Paxton, Theodora Petanidou, Miguel Pinheiro De Carvalho, … & Jeroen Scheper
1. Agricultural intensification and associated loss of high-quality habitats are key drivers of insect pollinator declines. With the aim of decreasing the environmental impact of agriculture, the 2014 EU Common Agricultural Policy (CAP) defined a set of habitat and landscape features (Ecological Focus Areas: EFAs) farmers could select from as a requirement to receive basic farm payments. To inform the post-2020 CAP, we performed a European-scale evaluation to determine how different EFA options vary in...

Fonio millet genome unlocks African orphan crop diversity for agriculture in a changing climate

Michael Abrouk, Hanin Ibrahim Ahmed, Philippe Cubry, Denisa Šimoníková, Stéphane Cauet, Yveline Pailles, Jan Bettgenhaeuser, Liubov Gapa, Nora Scarcelli, Marie Couderc, Leila Zekraoui, Nagarajan Kathiresan, Jana Čížková, Eva Hřibová, Jaroslav Doležel, Sandrine Arribat, Hélène Bergès, Jan Wieringa, Mathieu Gueye, Ndjido Kane, Christian Leclerc, Sandrine Causse, Sylvie Vancoppenolle, Claire Billot, Thomas Wicker … & Simon Krattinger
Sustainable food production in the context of climate change necessitates diversification of agriculture and a more efficient utilization of plant genetic resources. Fonio millet (Digitaria exilis) is an orphan African cereal crop with a great potential for dryland agriculture. Here, we established high-quality genomic resources to facilitate fonio improvement through molecular breeding. These include a chromosome-scale reference assembly and deep re-sequencing of 183 cultivated and wild Digitaria accessions, enabling insights into genetic diversity, population structure,...

Source pools and disharmony of the world’s island floras

Christian König, Patrick Weigelt, Amanda Taylor, Anke Stein, Wayne Dawson, Franz Essl, Jan Pergl, Petr Pysek, Mark Van Kleunen, Marten Winter, Cyrille Chatelain, Jan Wieringa, Pavel Krestov & Holger Kreft
Island disharmony refers to the biased representation of higher taxa on islands compared to their mainland source regions and represents a central concept in island biology. Here, we develop a generalizable framework for approximating these source regions and conduct the first global assessment of island disharmony and its underlying drivers. We compiled vascular plant species lists for 178 oceanic islands and 735 mainland regions. Using mainland data only, we modelled species turnover as a function...

Reconstructing hotspots of genetic diversity from glacial refugia and subsequent dispersal in Italian common toads (Bufo bufo)

Andrea Chiocchio, Jan Arntzen, Iñigo Martínez-Solano, Wouter De Vries, Roberta Bisconti, Alice Pezzarossa, Luigi Maiorano & Daniele Canestrelli
Genetic diversity feeds the evolutionary process and allows populations to adapt to environmental changes. However, we still lack a thorough understanding of why hotspots of genetic diversity are so 'hot'. Here, we analysed the relative contribution of bioclimatic stability and genetic admixture between divergent lineages in shaping spatial patterns of genetic diversity in the common toad Bufo bufo along the Italian peninsula. We combined population genetic, phylogeographic and species distribution modelling (SDM) approaches to map...

Registration Year

  • 2020
    21

Resource Types

  • Dataset
    21

Affiliations

  • Naturalis Biodiversity Center
    21
  • University of Zurich
    5
  • University of Bayreuth
    3
  • University of Cambridge
    2
  • German Center for Integrative Biodiversity Research
    2
  • Nord University
    2
  • Indonesian Institute of Sciences
    2
  • Wageningen University & Research
    2
  • University of Kansas
    1
  • National Research Institute for Agriculture, Food and Environment
    1