8 Works

Data from: Targeting global conservation funding to limit immediate biodiversity declines

Anthony Waldron, Arne O. Mooers, Daniel C. Miller, Nate Nibbelink, David Redding, Tyler S. Kuhn, J. Timmons Roberts & John L. Gittleman
Inadequate funding levels are a major impediment to effective global biodiversity conservation and are likely associated with recent failures to meet United Nations biodiversity targets. Some countries are more severely underfunded than others and therefore represent urgent financial priorities. However, attempts to identify these highly underfunded countries have been hampered for decades by poor and incomplete data on actual spending, coupled with uncertainty and lack of consensus over the relative size of spending gaps. Here,...

Data from: The effect of population bottlenecks on mutation rate evolution in asexual populations

Yevgeniy Raynes, Angela L. Halstead & Paul D. Sniegowski
In the absence of recombination, a mutator allele can spread through a population by hitchhiking with beneficial mutations that appear in its genetic background. Theoretical studies over the past decade have shown that the survival and fixation probability of beneficial mutations can be severely reduced by population size bottlenecks. Here, we use computational modelling and evolution experiments with the yeast S. cerevisiae to examine whether population bottlenecks can affect mutator dynamics in adapting asexual populations....

Data from: The fate of phosphorus fertilizer in Amazon soya bean fields

Shelby H. Riskin, Stephen Porder, Christopher Neill, Adelaine Michela E Silva Figueira, Carmen Tubbesing & Natalie Mahowald
Fertilizer-intensive soya bean agriculture has recently expanded in southeastern Amazônia, and whereas intensive fertilizer use in the temperate zone has led to widespread eutrophication of freshwater ecosystems, the effects in tropical systems are less well understood. We examined the fate of fertilizer P by comparing P forms and budgets across a chronosequence of soya bean fields (converted to soya beans between 2003 and 2008) and forests on an 800 km2 soya bean farm in Mato...

Data from: Leaf lifespan and the leaf economic spectrum in the context of whole plant architecture

Erika J. Edwards, David S. Chatelet, Lawren Sack & Michael J. Donoghue
1. The leaf economics spectrum (LES) has been an organizing framework of plant functional ecology for the past decade. The LES describes a set of trade-offs among traits related to plant carbon balance. Species with a long leaf lifespan (LLS) invest additional material for leaf protection and structural support, and consequently tend to have a lower leaf photosynthetic rate per unit mass than species with a shorter LLS. 2. While the LES is most apparent...

Data from: Notch and Nodal control expression of a forkhead factor in the specification network of a multipotent progenitor population in sea urchin

Stefan C. Materna, S. Zachary Swartz & Joel Smith
Indirect development, where embryogenesis gives rise to a larval form, requires that some cells retain developmental potency until they contribute to the different tissues in the adult, including the germ line, in a later, post-embryonic phase. In sea urchins, the coelomic pouches are the major contributor to the adult but how coelomic pouch cells (CPCs) are specified during embryogenesis is unknown. We here identify the key signaling inputs into the CPC specification network and show...

Data from: Repeated origin of three-dimensional leaf venation releases constraints on the evolution of succulence in plants

R. Matthew Ogburn & Erika J. Edwards
Succulent water storage is a prominent feature among plants adapted to arid zones, but we know little about how succulence evolves and how it is integrated into organs already tasked with multiple functions. Increased volume in succulent leaves, for example, may result in longer transport distances between veins and the cells that they supply, which in turn could negatively impact photosynthesis [1, 2, 3 and 4]. We quantified water storage [5] in a group of...

Data from: Small and ugly? Phylogenetic analyses of the “selfing syndrome” reveal complex evolutionary fates of monomorphic primrose flowers

Jurriaan M. De Vos, Rafael O. Wüest & Elena Conti
One of the most common trends in plant evolution, loss of self-incompatibility and ensuing increases in selfing, is generally assumed to be associated with a suite of phenotypic changes, notably a reduction of floral size, termed the selfing syndrome. We investigate whether floral morphological traits indeed decrease in a deterministic fashion after losses of self-incompatibility, as traditionally expected, using a phylogeny of 124 primrose species containing nine independent transitions from heterostyly (heteromorphic incompatibility) to homostyly...

Data from: Paths to selection on life history loci in different natural environments across the native range of Arabidopsis thaliana

Alexandre Fournier-Level, Amity M. Wilczek, Martha D. Cooper, Judith L. Roe, Jillian Anderson, Deren Eaton, Brook T. Moyers, Renee H. Petipas, Robert N. Schaeffer, Bjorn Pieper, Matthieu Reymond, Maarten Koornneef, Stephen M. Welch, David L. Remington & Johanna Schmitt
Selection on quantitative trait loci (QTL) may vary among natural environments due to differences in the genetic architecture of traits, environment-specific allelic effects or changes in the direction and magnitude of selection on specific traits. To dissect the environmental differences in selection on life history QTL across climatic regions, we grew a panel of interconnected recombinant inbred lines (RILs) of Arabidopsis thaliana in four field sites across its native European range. For each environment, we...

Registration Year

  • 2013
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Resource Types

  • Dataset
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Affiliations

  • Brown University
    8
  • Yale University
    2
  • University of Pennsylvania
    1
  • University of Michigan-Ann Arbor
    1
  • University of Maine at Presque Isle
    1
  • University of California System
    1
  • University of Georgia
    1
  • Simon Fraser University
    1
  • University of Zurich
    1
  • Max Planck Institute for Plant Breeding Research
    1