41 Works

Life history evolution, species differences and phenotypic plasticity in hemiparasitic eyebrights (Euphrasia)

Max Brown, Natacha Frachon, Edgar Wong & Alex Twyford
Premise of the study: Species delimitation in parasitic organisms is challenging as traits used in the identification of species are often plastic and vary depending on the host. Here, we use species from a recent radiation of generalist hemiparasitic Euphrasia to investigate trait variation and trait plasticity. We test whether Euphrasia species show reliable trait differences, investigate whether these differences correspond to life history trade-offs between growth and reproduction, and quantify plasticity in response to...

Fire and grazing determined grasslands of central Madagascar represent ancient assemblages

Cedrique Solofondranohatra, Maria Vorontsova, Gareth Hempson, Jan Hackel, Stuart Cable, Vololoniaina Jeannoda & Caroline Lehmann
The ecology of Madagascar’s grasslands is under-investigated and the dearth of ecological understanding of how disturbance by fire and grazing shapes these grasslands stems from a perception that disturbance shaped Malagasy grasslands only after human arrival. However, worldwide, fire and grazing shape tropical grasslands over ecological and evolutionary timescales, and it is curious Madagascar should be a global anomaly. We examined the functional and community ecology of Madagascar’s grasslands across 71 communities in the Central...

Data from: Bayesian estimation of the global biogeographical history of the Solanaceae

Julia Dupin, Nicholas J. Matzke, Tiina Särkinen, Sandra Knapp, Richard G. Olmstead, Lynn Bohs & Stacey D. Smith
Aim: The tomato family Solanaceae is distributed on all major continents except Antarctica and has its centre of diversity in South America. Its worldwide distribution suggests multiple long-distance dispersals within and between the New and Old Worlds. Here, we apply maximum likelihood (ML) methods and newly developed biogeographical stochastic mapping (BSM) to infer the ancestral range of the family and to estimate the frequency of dispersal and vicariance events resulting in its present-day distribution. Location:...

Data from: Evolution of angiosperm pollen. 6. the Celastrales, Oxalidales, and Malpighiales (COM) clade and Zygophyllales

Zhi-Bin Tao, Alexandra H. Wortley, Lu Lu, De-Zhu Li, Hong Wang & Stephen Blackmore
Analyzing pollen morphological data on a contemporary phylogenetic framework can enhance our understanding of the distribution, diversity, and evolution of palynological characters. In this paper, the sixth in a series detailing pollen morphological characters across angiosperms, we focus on the Celastrales, Oxalidales, and Malpighiales (COM) clade and Zygophyllales, together comprising ca. 20,000 species in 47 families within fabids. We first examined pollen grains from 21 species with light, scanning electron, and transmission electron microscopy, to...

Data from: Graphs in phylogenetic comparative analysis: Anscombe’s quartet revisited

Liam J. Revell, Klaus Schliep, Eugenio Valderrama & James E. Richardson
1. In 1973 the statistician Francis Anscombe used a clever set of bivariate datasets (now known as Anscombe’s quartet) to illustrate the importance of graphing data as a component of statistical analyses. In his example, each of the four datasets yielded identical regression coefficients and model fits, and yet when visualized revealed strikingly different patterns of covariation between x and y. 2. Phylogenetic comparative methods are statistical methods too, yet visualizing the data and phylogeny...

Campanula rotundifolia cytotype, distribution and first flowering dates

J. Wilson, A. Perry, Shepherd, M. Duran-Castillo, CE. Jeffree & S. Cavers
This dataset comprises information of location and cytotype of over 1300 samples of Campanula rotundifolia L. from the northern hemisphere (mostly from Britain and Ireland) and data from a common garden study in which British and Irish cytotypes were grown together and their flowering phenology and growth were assessed. Campanula rotundifolia L. is a widespread polyploid perennial herbaceous plant, with diploid, tetraploid, pentaploid and hexaploid cytotypes.

Forest plot inventory data from seasonally dry and moist Atlantic forest in Rio de Janeiro State, 2015-2017

R.T. Pennington, M. Nascimento, D. Villela, H Cavalcante De Lima, M. Iguatemy, P.J. Pena Rodrigues, F. Negreiros, A. Quinet, J.M. Braga, A. Costa & M. Souza
Data comprise plot location (latitude, longitude, elevation), taxonomic family and species names and measurements of trees (diameter, height, health). Presence of lianas (vines) and their measurements were also recorded. Funder: NERC - Brazil (CONFAP) Newton Fund: “Dry forest biomes in Brazil: biodiversity and ecosystem services” (NE/N000587/1)

A taxonomic revision of the African genus Desplatsia Bocq. (Malvaceae - Grewioideae)

Julia Wellsow & David J. Harris
The data set includes data of 800 herbarium specimens (and 295 duplicates) used for a taxonomic revision of Desplatsia Bocq. (Malvaceae s.l., subfamily Grewioideae, tribe Grewieae). Desplatsia is a genus of trees and shrubs found in tropical West and Central Africa and is characterised by subulately divided stipules, the absence of an androgynophore, stamens that are fused to a tube at the base, and large and distinctive fruits that are dispersed by elephants. In the...

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...

Resprouting grasses are associated with less frequent fire than seeders

Kimberley Simpson, Emma Jardine, Sally Archibald, Elizabeth Forrestel, Caroline Lehmann, Gavin Thomas & Colin Osborne
Plant populations persist under recurrent fire via resprouting from surviving tissues (resprouters) or seedling recruitment (seeders). Woody species are inherently slow-maturing, meaning that seeders are confined to infrequent fire regimes. However, for grasses, which mature faster, the relationships between persistence strategy and fire regime remains unknown. Globally, we analysed associations between fire regimes experienced by hundreds of grass species and their persistence strategy, within a phylogenetic context. We also tested whether persistence strategies are associated...

Data from: Maintenance of species boundaries in a Neotropical radiation of Begonia

Alex D. Twyford, Catherine A. Kidner & Richard A. Ennos
A major goal of evolutionary biology is to determine the mechanisms generating biodiversity. In Begonia, one of the largest plant genera (1900+ species), it has been postulated that the high number of endemic species is a by-product of low gene flow among populations, which predisposes the group to speciation. However, this model of divergence requires that reproductive barriers accumulate rapidly among diverging species that overlap in their geographic ranges, otherwise speciation will be opposed by...

Data from: Combined observational and experimental data provide limited support for facilitation in lichens

Måns Svensson, Alexandro Caruso, Rebecca Yahr, Christopher Ellis, Göran Thor & Tord Snäll
It is increasingly recognized that facilitative interactions can shape communities. One of the mechanisms through which facilitation may operate is when one species facilitates the colonization of another through the exchange of shared symbionts. Lichens are symbiotic associations composed of a mycobiont (lichenised-fungus) and one or two photobionts (algae or cyanobacteria). Different lichen species may have overlapping specificity for photobionts, creating the possibility that facilitation drives lichen community assembly. To investigate whether facilitation occurs in...

Data from: RADseq dataset with 90% missing data fully resolves recent radiation of Petalidium (Acanthaceae) in the ultra-arid deserts of Namibia

Erin A. Tripp, Yi-Hsin Erica Tsai, Yongbin Zhuang & Kyle G. Dexter
Deserts, even those at tropical latitudes, often have strikingly low levels of plant diversity, particularly within genera. One remarkable exception to this pattern is the genus Petalidium (Acanthaceae), in which 37 of 40 named species occupy one of the driest environments on Earth, the Namib Desert of Namibia and neighboring Angola. To contribute to understanding this enigmatic diversity, we generated RADseq data for 47 accessions of Petalidium representing 22 species. We explored the impacts of...

Vegetation and habitat data for fragmented and continuous forest sites in Sabah, Malaysian Borneo, 2017

E.H. Waddell, S. Fleiss, B. Bala Ola, A. Bin Sailim, A. Jelling, K.L. Yeong, J. Tangah, S. Benedick, H. King, M. Hughes, C.J. McClean, D.S. Chapman, J.K. Hill & L.F. Banin
This dataset contains records for vegetation in 49 plots across 14 fragmented forest sites and 4 continuous forest sites in Sabah, Malaysian Borneo. Living vegetation and deadwood were surveyed in two or three 0.28-ha plots in each of the 18 sites. In addition to vegetation data, the dataset contains topsoil parameters, measurements of forest structure, and metrics of the degree of forest fragmentation in the landscape surrounding the plots. These data were collected in order...

Oak-associated biodiversity in the UK (OakEcol)

R.J. Mitchell, P.E. Bellamy, C.J. Ellis, R.L. Hewison, N.G. Hodgetts, G.R. Iason, N.A. Littlewood, S. Newey, J.A. Stockan & A.F.S. Taylor
This dataset contains a list of all known birds, bryophytes, fungi, invertebrates, lichens and mammals that use oak (Quercus petraea and Quercus robur) in the UK. In total 2300 species are listed in the dataset. For each species we provide a level of association with oak, ranging from obligate (only found on oak) to cosmopolitan (found on a wide range of other tree species). Data on the ecology of each oak associated species is provided:...

Data package of Nordeste Plot Metadata and Species list from Brazilian Caatinga Long-term Inventory plots

Peter Moonlight, Jon Lloyd, Colin Prentice, Oliver Phillips, Tomas Domingues, Aurora Levesley, Jarcilene Almeida Cortez, Keith Bloomfield, Domingos Cardoso, Italo Coutinho, John Cunha, Mário Marcos do Espirito Santo, Alberto Jorge Ferias Castro, Francoise Yoko Ishida, Rubens Manuel dos Santos, Salomão Medeiros, Jhonathan Oliveira Silva, Luciano Paganucci de Queiroz, R. Toby Pennington, Priscyla Rodriguez, Tiina Särkinen, Rodolfo Souza, Magna Soelma Beserra de Moura, Romualdo de Sousa Lima & Tony de Sousa Oliveira

Data from: Genetic differentiation and species cohesion in two widespread Central American Begonia species

Alex D. Twyford, Catherine A. Kidner & Richard A. Ennos
Begonia is one of the ten largest plant genera, with over 1500 species. This high species richness may in part be explained by weak species cohesion, which has allowed speciation by divergence in allopatry. In this study, we investigate species cohesion in the widespread Central American Begonia heracleifolia and Begonia nelumbiifolia, by genotyping populations at microsatellite loci. We then test for post-zygotic reproductive barriers using experimental crosses, and assess whether sterility barriers are related to...

Data from: Patterns of mating and generation of diversity in a Geum hybrid swarm

Markus Ruhsam, Peter M. Hollingsworth & Richard A. Ennos
To understand the evolutionary consequences of hybridization between the outcrossing plant Geum rivale and the selfer G. urbanum we tested the predictions of two simple models which assume either A). low or B). high pollen fitness in hybrids. Model A predicts only four genotypic classes (G. rivale, G. rivale backcross (BCR), F1 and G. urbanum) and asymmetric introgression from inbreeding to outbreeding species. Model B predicts additional genotypic classes and potential generation of novel inbreeding...

Data from: Indications for three independent domestication events for the tea plant (Camellia sinensis (L.) O. Kuntze) and new insights into the origin of tea germplasm in China and India revealed by nuclear microsatellites

M. K. Meegahakumbura, M. Wambulwa, K. K. Thapa, M. M. Li, M. Möller, J.C. Xu, J.B. Yang, B.Y. Liu, S. Ranjitkar, J. Liu, D.Z. Li, L.M. Gao, M. C. Wambulwa, D. Z. Li, L. M. Gao, J. B. Yang & J. C. Xu
Background: Tea is the world’s most popular non-alcoholic beverage. China and India are known to be the largest tea producing countries and recognized as the centers for the domestication of the tea plant (Camellia sinensis (L.) O. Kuntze). However, molecular studies on the origin, domestication and relationships of the main teas, China type, Assam type and Cambod type are lacking. Methodology/Principal Findings: Twenty-three nuclear microsatellite markers were used to investigate the genetic diversity, relatedness, and...

Data from: Genotypic variation in a foundation tree (Populus tremula L.) explains community structure of associated epiphytes

Chantel Davies, Christopher J. Ellis, Glenn R. Iason & Richard A. Ennos
Community genetics hypothesizes that within a foundation species the genotype of an individual significantly influences the assemblage of dependent organisms. To assess whether these intra-specific genetic effects are ecologically important, it is required to compare their impact on dependent organisms with that attributable to environmental variation experienced over relevant spatial scales. We assessed bark epiphytes on 27 aspen (Populus tremula L.) genotypes grown in a randomized experimental array at two contrasting sites spanning the environmental...

Data from: Convergent morphology in Alpinieae (Zingiberaceae): recircumscribing Amomum as a monophyletic genus

Hugo De Boer, Mark Newman, Axel Dalberg Poulsen, A. Jane Droop, Tomas Fer, Le Thi Thu Hien, Kristyna Hlavata, Vichith Lamxay, James E. Richardson, Karin Steffen & Jana Leong-Škorničková
The tropical ginger genus Amomum (Zingiberaceae) has always posed challenges for classification based on morphological characters. Previous molecular phylogenetic studies showed Amomum to be paraphyletic but limited sampling and absence of the data of the type Amomum subulatum made it impossible to resolve the paraphyly and make nomenclatural changes. Here, Amomum is further investigated in a multi-marker phylogenetic framework using matK and nrITS including multiple accessions of the type, the genus Elettaria and additional accessions...

Data from: A taxonomic revision of the African genus Desplatsia Bocq. (Malvaceae - Grewioideae) with identifiers

David Harris & Julia Wellsow
A taxonomic revision of Desplatsia Bocq. (Malvaceae s.l., subfamily Grewioideae, tribe Grewieae) based on 810 herbarium specimens is presented. Desplatsia is a genus of trees and shrubs found in tropical West and Central Africa and is characterised by subulately divided stipules, the absence of an androgynophore, stamens that are fused to a tube at the base, and large and distinctive fruits that are dispersed by elephants. Four species are recognized (D. subericarpa, D. chrysochlamys, D....

Data from: Climate-woodland effects on population genetics for two congeneric lichens with contrasting reproductive strategies

Rocío Belinchón, Christopher J. Ellis & Rebecca Yahr
Genetic variation is expected to be influenced by the interaction between reproductive mode and dispersal traits on the one hand, and environmental and habitat setting affecting establishment success on the other. We evaluated how environmental/habitat setting affect population genetic variation (i.e. variation in genetic diversity and structure) when regulated by contrasting dispersal traits. We used fungus-specific microsatellite markers to examine genetic diversity and structure of two closely related epiphytic lichen fungi that differ in their...

Data from: Extending glacial refugia for a European tree: genetic markers show that Iberian populations of white elm are native relicts and not introductions

Pablo Fuentes-Utrilla, Martin Venturas, Peter M. Hollingsworth, Jane Squirrell, Carmen Collada, Graham N. Stone & Luis Gil
Conservation policies usually focus on in situ protection of native populations, a priority that requires accurate assessment of population status. Distinction between native and introduced status can be particularly difficult (and at the same time, is most important) for species whose natural habitat has become both rare and highly fragmented. Here we address the status of the white elm (Ulmus laevis Pallas), a European riparian tree species whose populations have been fragmented by human activity...

Data from: Tiny niches and translocations: the challenge of identifying suitable recipient sites for small and immobile species

Rob W. Brooker, Mark J. Brewer, Andrea J. Britton, Antonia Eastwood, Christopher Ellis, Alessandro Gimona, Laura Poggio & David R. Genney
Assisted colonisation, one form of species translocation, has been proposed as a tool for helping species to track suitable conditions in a changing climate. There are considerable practical challenges associated with it, including predicting where to place translocated individuals. This problem may be particularly big for small and immobile species, where small-scale micro-environmental conditions de-couple them from environmental conditions as projected in large-scale climate models. To investigate this problem we developed a survey-based model to...

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