8 Works

Support for the habitat amount hypothesis from a global synthesis of species density studies

James Watling, Víctor Arroyo-Rodríguez, Marion Pfeifer, Lander Baeten, Cristina Banks-Leite, Laura Cisneros, Rebecca Fang, Caroli Hamel-Leigue, Thibault Lachat, Inara Leal, Luc Lens, Hugh Possingham, Dinarzarde Raheem, Danilo Ribeiro, Eleanor Slade, Nicolas Urbina-Cardona, Eric Wood & Lenore Fahrig
Decades of research suggest that species richness depends on spatial characteristics of habitat patches, especially their size and isolation. In contrast, the habitat amount hypothesis predicts that: 1) species richness in plots of fixed size (species density) is more strongly and positively related to the amount of habitat around the plot than to patch size or isolation; 2) habitat amount better predicts species density than patch size and isolation combined, 3) there is no effect...

Data from: Tracing the patterns of non-marine turtle richness from Triassic–Palaeogene: from origin through global spread

Terri Cleary, Roger Benson, Patricia Holroyd & Paul Barrett
Turtles are key components of modern vertebrate faunas and it is predicted that their diversity and distributions will be affected by anthropogenic climate change. Despite this, few studies have attempted to provide baseline data on turtle taxonomic richness through time or assess their past responses to global environmental change. We used the extensive Triassic–Palaeogene (252–23 Ma) fossil record of terrestrial and freshwater turtles to investigate diversity patterns, finding substantial variation in richness through time and...

Data from: Cranial evolution in the extinct Rodrigues Island owl Otus murivorus (Strigidae), associated with unexpected ecological adaptations

Antoine Louchart, Anaïs Duhamel, Julian Hume, Pauline Guenser & Céline Salaviale
Island birds that were victim of anthropic extinctions were often more specialist species, having evolved their most distinctive features in isolation. Here we studied a fossil cranium of the ‘giant’ extinct scops owl Otus murivorus from Rodrigues Island (Mascarene Islands, southwestern Indian Ocean), to determine any potential unique characters. The fossil and extant strigids were imaged through x-ray microtomography, providing 3D views of external and internal (endocast, inner ear) cranial structures. Geometric morphometrics and analyses...

Formation binning: a new method for increased temporal resolution in regional studies, applied to the Late Cretaceous dinosaur fossil record of North America

Christopher Dean, A. Alessandro Chiarenza & Susannah Maidment
The advent of palaeontological occurrence databases has allowed for detailed reconstruction and analyses of species richness through deep time. While a substantial literature has evolved ensuring that taxa are fairly counted within and between different time periods, how time itself is divided has received less attention. Stage-level or equal-interval age bins have been frequently used for regional and global studies in vertebrate palaeontology. However, when assessing diversity at a regional scale, these resolutions can prove...

Drought and presence of ants can influence hemipitera in tropical leaf litter

Anna Goldman, Timothy Bonebrake, Theodore Evans, Hannah Griffiths, Catherine Parr, Louise Ashton & Paul Eggleton
Climate change is predicted to impact tropical rainforests, with droughts becoming more frequent and more severe in some regions. We currently have a poor understanding of how increased drought will change the functioning of tropical rainforest. In particular, tropical rainforest invertebrates, which are numerous and biologically important, may respond to drought in different ways across trophic levels. Ants are a diverse group that carry out important ecosystem processes, shaping ecosystem structure and function through predation...

Early Silurian chondrichthyans from the Tarim Basin (Xinjiang, China)

Plamen Andreev, Wenjin Zhao, Nian-Zhong Wang, Moya Smith, Li Qiang, Xindong Cui, Min Zhu & Ivan Sansom
The Sinacanthida ordo nov. and Mongolepidida are spine- and scale-based taxa whose remains encompass some of the earliest reported fossils of chondrichthyan fish. Investigation of fragmentary material from the Early Silurian Tataertag and Ymogantau Formations of the Tarim Basin (Xinjiang Uygur Autonomous Region, China) has revealed a diverse mongolepidid and sinacanthid fauna dominated by mongolepids and sinacanthids in association with abundant dermoskeletal elements of the endemic ‘armoured’ agnathans known as galeaspids. Micro-computed tomography, scanning electron...

Data from: Phylogenetic response of naraoiid arthropods to early - middle Cambrian environmental change

Andrew Bond & Greg Edgecombe
The Cambrian Period, primarily known for animal life diversifying, experienced global extinctions. Pulses of extinction in Cambrian Series 2 are exemplified by the disappearance of archaeocyath sponges and olenelline and redlichiid trilobites. However, the effect of such extinctions on outer shelf organisms, as typify Burgess Shale-type (BST) deposits, remains relatively unknown. The phylogeny of naraoiid arthropods, represented in BST deposits globally, has consequently been reconstructed from either side of the Series 2–Miaolingian extinction event to...

Relationships of mass properties and body proportions to locomotor habit in terrestrial Archosauria

Peter Bishop, Karl Bates, Vivian Allen, Donald Henderson, Marcela Randau & John Hutchinson
Throughout their 250 Myr history, archosaurian reptiles have exhibited a wide array of body sizes, shapes and locomotor habits, especially in regard to terrestriality. These features make Archosauria a useful clade with which to study the interplay between body size, shape and locomotor behaviour, and how this interplay may have influenced locomotor evolution. Here, digital volumetric models of 80 taxa are used to explore how mass properties and body proportions relate to each other and...

Registration Year

  • 2020
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Resource Types

  • Dataset
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Affiliations

  • Natural History Museum
    8
  • University of Birmingham
    3
  • University of Liverpool
    2
  • University of Oxford
    2
  • Institute of Vertebrate Paleontology and Paleoanthropology
    1
  • John Carroll University
    1
  • Ghent University
    1
  • University of Queensland
    1
  • University of California, Berkeley
    1
  • Newcastle University
    1