4 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: A new dissorophoid temnospondyl from the Allegheny Group (Late Westphalian, Carboniferous) of Five Points, Mahoning County, Ohio (USA)

Rainer Schoch, Amy Henrici & Robert Hook
A small temnospondyl skull from the Upper Carboniferous Allegheny Group of Five Points, Ohio, is referred to a new dissorophoid, Palodromeus bairdi n. gen n. sp. The complete skull with mandibles is preserved in counterparts. It is characterized by (1) elongated slit-like choana, (2) postfrontal, postorbital, and supratemporal bearing a distinct ridge, and (3) reduced parietal only two-thirds the length of the frontal. Phylogenetic analysis confirms a dichotomy between amphibamiforms and olsoniforms and places Palodromeus...

Anatomy of the neural endocranium and stapes of Diadectes absitus (Diadectomorpha) from the early Permian of Germany based on the high‐resolution X‐ray microcomputed tomography

Jozef Klembara, Miroslav Hain, Andrej Čerňanský, David S Berman & Amy C. Henrici
A detailed anatomy of the braincase and stapes of the subadult specimen of Diadectes absitus from early Permian sediments of Germany based on the high-resolution X-ray microcomputed tomography are described for the first time. In contrast to previous studies of Diadectes, the bones of the braincase (opisthotic, prootic, supraoccipital, basioccipital, exoccipital, basisphenoid, sphenethmoid), and parasphenoid of D. absitus are not co-ossified, but suturally defined. This has allowed for a reconstruction of a complete braincase with...

Data from: Nonnative old-field species inhabit early-season phenological niches and exhibit unique sensitivity to climate

Rachel Reeb, Isabel Acevedo, Mason Heberling & Sara Kuebbing
Native and nonnative plant species can exhibit differences in the timing of their reproductive phenology as well as their phenological sensitivity to climate. These contrasts may influence species’ interactions and the invasion potential of nonnative species; however, a limited number of phenology studies expressly consider phenological mismatches among native and nonnative species over broad spatial or temporal scales. To fill this knowledge gap, we used two complementary approaches: first, we quantified the flowering phenology of...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Carnegie Museum of Natural History
  • John Carroll University
  • Ghent University
  • The University of Texas at Austin
  • University of Queensland
  • Natural History Museum
  • University of Pittsburgh
  • Newcastle University
  • National Autonomous University of Mexico
  • California State University Los Angeles