4 Works

Incorporating hierarchical characters into phylogenetic analysis

Katherine St. John & Melanie Hopkins
Popular optimality criteria for phylogenetic trees focus on sequences of characters that are applicable to all the taxa. As studies grow in breadth, it can be the case that some characters are applicable for a portion of the taxa and inapplicable for others. Past work has explored the limitations of treating inapplicable characters as missing data, noting that this strategy may favor trees where interval nodes are assigned impossible states, where the arrangement of taxa...

Large herbivores transform plant-pollinator networks in an African savanna

Matthew C. Hutchinson, Travis J. Guy, Todd M. Palmer, Robert M. Pringle, Katherine C. R. Baldock, Elisha Kayser, Benjamin Baiser, Phillip P. A. Staniczenko, Jacob R. Goheen, Robert M. Pringle & Todd M. Palmer
Pollination by animals is a key ecosystem service1,2 and interactions between plants and their pollinators are a model system for the study of ecological networks3,4, yet plant-pollinator networks are typically studied in isolation from the broader ecosystems in which they are embedded. The plants visited by pollinators also interact with other consumer guilds that eat stems, leaves, fruits, or seeds. One such guild, large mammalian herbivores, are well-known ecosystem engineers5–7 and may have substantial impacts...

Environmental correlates of taxonomic and phylogenetic diversity in the Atlantic Forest

Andrea Paz
Aim: There is little consensus on which environmental variables are best at predicting multiple dimensions of diversity. We ask whether there are common environmental correlates of diversity, despite ecological differences, across nine clades of plants and animals distributed along a single rainforest domain. For that, we the compare environmental correlates of species richness, phylogenetic diversity, and phylogenetic endemism. Location: Brazilian Atlantic Forest Taxon: Five clades of plants: one within the Bromelioideae subfamily, three in the...

The effects of climate and demographic history in shaping genomic variation across populations of the Desert Horned Lizard (Phrynosoma platyrhinos)

Keaka Farleigh, Sarah A. Vladimirova, Christopher Blair, Jason T. Bracken, Nazila Koochekian, Drew R. Schield, Daren C. Card, Nicholas Finger, Jonathan Henault, Adam D. Leaché, Todd A. Castoe & Tereza Jezkova
Species often experience spatial environmental heterogeneity across their range, and populations may exhibit signatures of adaptation to local environmental characteristics. Other population genetic processes, such as migration and genetic drift, can impede the effects of local adaptation. Genetic drift in particular can have a pronounced effect on population genetic structure during large-scale geographic expansions, where a series of founder effects leads to decreases in genetic variation in the direction of the expansion. Here we explore...

Registration Year

  • 2021

Resource Types

  • Dataset


  • City University of New York
  • University of Washington
  • Princeton University
  • University of Wyoming
  • The University of Texas at Arlington
  • University of Colorado Boulder
  • University of Florida
  • American Museum of Natural History
  • Harvard University
  • Northumbria University