New Tumbleweed Species Rapidly Expanding Range

Norm Ellstrand

Norm Ellstrand

Two invasive species of tumbleweed have hybridized to create a new species; one that has dramatically expanded its geographic range in California in just a decade, UCR researchers foun.

Researchers believe Salsola ryanii is likely to become an important invasive species that could spread beyond California to other states.

Shana R. Welles, who is currently a post-doctoral fellow at the University of Arizona but did the tumbleweed research as a graduate student at UCR, outlined the findings in a just-published paper co-authored by her Ph.D. advisor, Norman C. Ellstrand, a professor of genetics and a member of UCR’s Institute for Integrative Genome Biology. The paper, “Rapid range expansion of a newly formed allopolyploid weed in the genus Salsola,” was published in the American Journal of Botany.

Read more about this new tumbleweed species on UCR Today.

Researchers Document How Broadbills Make Loud Wing Song

Christopher Clark

Christopher Clark

Broadbills – birds found in some parts of Africa – produce a startlingly loud sound that they make with their wings to mark off territory. Males fly abruptly in a tight circle, landing where they began, and produce a klaxon-like sound – brreeeeet! – that they could also be using to attract females.  Researchers have hypothesized that it is the outermost wing feathers that make the sound, but no studies have been conducted to verify this hypothesis.

A team of researchers led by Christopher J. Clark, assistant professor of biology at UCR, has now conducted a study that shows that it is not the outermost wing feathers but the ones just inside of these feathers that make the klaxon-like sound.

Study results appeared in the March 30 issue of the Journal of Experimental Biology. Read more about broadbills and Clark’s research on UCR Today.

Show and Prove: Tensions, Contradictions, and Possibilities of Hip Hop Studies

UCR is hosting the Show and Prove Hip Hop Studies conference, scheduled for Friday, April 8 to Sunday, April 10. The conference is free and open to the public, but registration is required. The themes for this year’s conference are “spirit” and “performance;” and are focused on cultivating the necessary and critical dialogues for the development of hip hop studies.

For the full schedule, and detailed information, please go to the Show and Prove conference website.

April 8 Conference to Examine Poverty Measurement Challenges

The Blum Initiative for Global and Regional Poverty, an affiliated research center of the UCR School of Public Policy, will present a conference on Friday, April 8, that will examine the current state of measuring poverty in the U.S. and explore new measurement standards that could be more useful to government analysts, policymakers and nonprofits.

The conference, “The Measurement of Poverty and Economic Resources,” will be held from 9 a.m. to 5 p.m. in Humanities 1500. The event is free and open to the public, but reservations are required and may be made online. Parking permits may be purchased at the kiosk on West Campus Drive at the University Avenue entrance to the campus.

For more information about the event, please visit UCR Today.

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