3 Works

Multilocus phylogeography, population genetics and niche evolution of Australian Brown and Black-tailed Treecreepers (Aves: Climacteris)

Scott Edwards, João Tonini, Nancy McInerney, Corey Welch & Peter Beerli
The Carpentarian barrier across northeastern Australia is a major biogeographic barrier and a generator of biodiversity within the Australian Monsoonal Tropics. Here we present a continent-wide analysis of mitochondrial (control region) and autosomal (14 anonymous loci) sequence and indel variation and niche modeling of Brown and Black-tailed Treecreepers (Climacteris picumnus and C. melanurus), a clade with a classic distribution on either side of the Carpentarian barrier. mtDNA control region sequences exhibited reciprocal monophyly and strong...

A test of Bergmann’s rule in the Early Triassic: Latitude, body size, and sampling in Lystrosaurus

Zoe Kulik & Christian Sidor
The ecogeographical rule known as Bergmann’s rule suggests that there is a positive relationship between body size and latitude when comparing closely related taxa. The underlying mechanism, or mechanisms, to explain this pattern vary as widely as the taxa that seem to follow it, which has led to skepticism over whether Bergmann’s rule should be considered a rule at all. Despite this, Bergmann’s rule is widespread among modern birds, mammals, beetles, and some amphibians, but...

Fossilized pollen malformations as indicators of past environmental stress and meiotic disruption: insights from modern conifers

Jeffrey Benca, Ivo Duijnstee & Cindy Looy
Pollen malformations have been proposed as a paleoenvironmental stress proxy. However, the frequency and variability of pollen malformations under near-optimal conditions and environmental stress, as well as their developmental origins, remain unclear. To bridge these gaps, we compared pollen malformation frequencies and assemblages of 14 extant conifer genera of Pinaceae and Podocarpaceae producing saccate (winged) grains grown under near-optimal conditions. These baseline pollen yields were compared with those produced by Pinus mugo ‘Columnaris’ cultured under...

Registration Year

  • 2022

Resource Types

  • Dataset


  • Burke Museum of Natural History and Culture
  • University of California, Berkeley
  • Harvard University
  • National Museum of Natural History
  • University of Richmond
  • Florida State University