8 Works

Precision mapping of snail habitat provides a powerful indicator of human schistosomiasis transmission

Chelsea Wood, Susanne Sokolow, Isabel Jones, Andrew Chamberlin, Kevin Lafferty, Armand Kuris, Merlijn Jocque, Skylar Hopkins, Grant Adams, Julia Buck, Andrea Lund, Ana Garcia-Vedrenne, Evan Fiorenza, Jason Rohr, Fiona Allan, Bonnie Webster, Muriel Rabone, Joanne Webster, Lydie Bandagny, Raphael Ndione, Simon Senghor, Anne-Marie Schacht, Nicolas Jouanard, Gilles Riveau & Giulio De Leo
Recently, the World Health Organization recognized that efforts to interrupt schistosomiasis transmission through mass drug administration have been ineffective in some regions; one of their new recommended strategies for global schistosomiasis control emphasizes targeting the freshwater snails that transmit schistosome parasites. We sought to identify robust indicators that would enable precision targeting of these snails. At the site of the world’s largest recorded schistosomiasis epidemic—the Lower Senegal River Basin in Senegal—intensive sampling revealed positive relationships...

Origin and adaptive radiation of the exceptional and threatened bembidiine beetle fauna of St Helena (Coleoptera: Carabidae)

David Maddison, John Sproul & Howard Mendel
The central peaks of the isolated island of St Helena (in the south Atlantic Ocean) are home to an extraordinary set of ground beetles of the tribe Bembidiini, and belong to three endemic genus-group taxa. These beetles are strikingly different in overall body form from the many bembidiines found elsewhere in the world. At least some of the St Helena species are likely extinct, and all are threatened by habitat destruction and invasive species. Through...

Ancient mitogenomics clarifies radiation of extinct Mascarene giant tortoises (Cylindraspis spp.)

Christian Kehlmaier, Eva Graciá, Patrick D. Campbell, Margaretha D. Hofmeyr, Silke Schweiger, Albert Martínez-Silvestre, Walter Joyce & Uwe Fritz
The five extinct giant tortoises of the genus Cylindraspis belong to the most iconic species of the enigmatic fauna of the Mascarene Islands that went largely extinct after the discovery of the islands. To resolve the phylogeny and biogeography of Cylindraspis, we analysed a data set of 45 mitogenomes that includes all lineages of extant tortoises and eight near-complete sequences of all Mascarene species extracted from historic and subfossil material. Cylindraspis is an ancient lineage...

Data from: Diet variability among insular populations of Podarcis lizards reveals diverse strategies to face resource-limited environments

Maxime Taverne, Anne-Claire Fabre, Nina King-Gillies, Marija Krajnović, Duje Lisičić, Louise Martin, Leslie Michal, Donat Petricioli, Anamaria Stambuk, Zoran Tadić, Chloé Vigliotti, Beck Wehrle & Anthony Herrel
Access to resources is a dynamic and multi-causal process that determines the success and survival of a population. It is therefore often challenging to disentangle the factors affecting ecological traits like diet. Insular habitats provide a good opportunity to study how variation in diet originates, in particular in populations of mesopredators such as lizards. Indeed, high levels of population density associated with low food abundance and low predation are selection pressures typically observed on islands....

Data from: To remain or leave: dispersal variation and its genetic consequences in benthic freshwater invertebrates

Paolo Ruggeri, Ellen Pasternack & Beth Okamura
Variation in dispersal capacity may influence population genetic variation and relatedness of freshwater animals and hence provide insights on patterns and processes that influence biodiversity. The majority of studies addressing this issue have focused on dispersal variation in in fish inhabiting riverine systems whose dendritic nature and upstream/downstream gradients facilitate characterizing populations along networks. We undertook extensive, large-scale investigations of two freshwater bryozoans species whose dispersive propagules (statoblasts) are either attached to surfaces (Fredericella sultana)...

Revisiting a landmark study-system: no evidence for a punctuated mode of evolution in Metrarabdotos

Kjetil Voje, Emanuela Di Martino & Arthur Porto
Is speciation generally a ‘special time’ in morphological evolution or are lineage splitting events just ‘more of the same’ where the end product happens to be two separate lineages? Data on evolutionary dynamics during anagenetic and cladogenetic events among closely related lineages within a clade are rare, but the fossil record of the bryozoan genus Metrarabdotos is considered a textbook example of a clade where speciation causes rapid evolutionary change against a backdrop of morphological...

Data from: Fine-scale appendage structure of the Cambrian trilobitomorph Naraoia spinosa and its ontogenetic and ecological implications

Dayou Zhai, Gregory Edgecombe, Andrew Bond, Huijuan Mai, Xianguang Hou & Yu Liu
Trilobitomorphs are a species-rich Palaeozoic arthropod assemblage that unites trilobites with several other lineages that share similar appendage structure. Post-embryonic development of the exoskeleton is well documented for some trilobitomorphs, especially trilobites, but little is known of the ontogeny of their soft parts, limiting understanding of their autecology. Here we document appendage structure of the Cambrian naraoiid trilobitomorph Naraoia spinosa by computed microtomography, resulting in three-dimensional reconstructions of appendages at both juvenile and adult stages....

Data from: The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco

Eduardo Villalobos-Segura, Charlie Underwood & David Ward
A new fossil batoid (ray) Ptychotrygon rostrispatula sp. nov. is described from five exceptionally well-preserved, three-dimensional skeletal remains from the Turonian (Late Cretaceous) of Morocco. These specimens represent the first known skeletal remains for the genus Ptychotrygon and allow an almost complete description of the genus providing a new insight to its phylogenetic relations and validate its taxonomic status as a member of the Sclerorhynchoidei. Mechanical preparation of the fossil remains revealed a relatively large...

Registration Year

  • 2019
    8

Resource Types

  • Dataset
    8

Affiliations

  • Natural History Museum
    8
  • Yunnan University
    1
  • University of Washington
    1
  • Stanford University
    1
  • University of the Western Cape
    1
  • University of Notre Dame
    1
  • University of Zagreb
    1
  • Senckenberg Nature Research Society
    1
  • Oregon State University
    1
  • Espoir pour la Sante
    1