19,640 Works

The native honeysuckle leaf blight increases leaf loss in invasive Amur honeysuckle

Richard L. Boyce, Natalie A. Holsclaw, Alison A. Jones & Nathan J. Boyce
The invasive deciduous shrub Amur honeysuckle (Lonicera maackii (Rupr.) Herder) is affected by the native fungus honeysuckle leaf blight (Insolibasidium deformans (C.J. Gould) Oberw. & Bandoni). In Northern Kentucky, blight symptoms were first noticed in 2012 and have been present every year since. Honeysuckle leaf blight causes young leaves to yellow and eventually become necrotic, leading to premature leaf loss. Previous research indicates that open-grown honeysuckle stands have declined since the 1980s, and it has...

Phylogenetic structure of the weed seedbank is altered between regions in glyphosate-resistant soybean cropping systems in the United States over 6 years

Zhe Ren, David J. Gibson, Karla L. Gage, Bryan G. Young, Micheal D.K. Owen, Joseph L. Matthews, David L. Jordan, David R. Shaw, Stephen C. Weller & Robert G. Wilson

The taxonomic diversity of the weed flora and seedbank in agricultural fields with a history of applying glyphosate-resistant (GR) crops is influenced by geographical regions, GR genetic traits, and years, and community assembly is shaped by environmental filtering and biotic drivers alone or interactively. Phylogenetic diversity as an intrinsic biodiversity component illustrates the evolutionary history of species in a community, which could build bridges between evolutionary potential and ecosystem functioning, and is a promising...

New standard resources for systems biology: BiGG Models database and the visual pathway editor Escher

Andreas Dräger, Zachary A. King, Justin S. Lu, Ali Ebrahim, Nikolaus Sonnenschein, Philip C. Miller, Joshua A. Lerman, Bernhard O. Palsson & Nathan E. Lewis
Background: Genome-scale metabolic network reconstructions enable the simulation and analysis of complex biological networks, thus providing insights into how thousands of genes together influence cell phenotypes. Accuracy in systems biology research requires standards in model construction, a variety of specific software tools, and access to high-quality metabolic networks.

Results: To meet these needs, we present BiGG Models database and a collection of software solutions for model building, curation, visualization, and simulation. BiGG Models currently contains more...

Ewe are what ewe eat: Using stable isotope analysis to infer diet specialization of cougars

Samantha Widmeyer & Mark Boyce
Although typically referred to as a generalist species, individual prey specialization has been documented in cougars (Puma concolor). This behaviour has the potential to limit and regulate ungulate dynamics, particularly in cases where ungulates exist in small or isolated populations. Cougars are notoriously difficult to monitor due to their low density, large range-size, and solitary nature. Traditional methods used to quantitatively estimate the diets of these carnivores are often resource limited, labour intensive, and restricted...

Increasing atmospheric CO2 levels may reduce extraction of nutrients from soil microbes in plant roots

James White, Rajan Verma, Kathryn Kingsley, Qiuwei Zhang, Nkolika Obi & Kurt P. Kowalski

This research was presented at the Ecological Society of America annual conference in Louisville, Kentucky on August 14, 2019. In this presentation we report the following: 1) Elevated CO2 inhibits superoxide formation in plant root cells; 2) Without superoxide, microbes do not convert to protoplasts within root cells; 3) Without protoplast phases in root cells, root hairs do not elongate; 4) In elevated CO2 , the rhizophagy cycle in roots is suppressed and nutrient absorption...

How environmental studies programs and the ESA 4DEE framework can help recruit diverse students into the environmental workforce

Carmen Cid, Kathleen Shea & Janet Macfall
The new Ecological Society of America 4 dimensional curricular framework (4DEE) elevates the human dimension of environmental interactions, and focuses on aligning undergraduate ecology education with career skills needed in today's environmental workforce. Environmental Studies programs have traditionally integrated the social and natural sciences in their curriculum and showcase experiential learning that addresses community environmental issues. Both the ESA 4DEE and Environmental Studies programs follow the same process in making environmental knowledge connect with community...

The DendroEcological Network: A cyberinfrastructure to facilitate the use of tree-ring and ecological data to answer ecological questions

Shelly Rayback, James Duncan, Alexandra Kosiba, Paul Schaberg, Paula Murakami & Christopher Hansen
This poster introduces the DendroEcological Network (DEN), an open-source repository of high quality dendrochronological and associated ecological data.

Facilities for big data @RUG and SURF

Haije Wind
Data handling (‘BIG’ Data)
- Research spaces and collaboration tools
- High Performance Computing
- Visualisatie
- Geografic Information Systems
- Collaboration with the eScience center

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