Wiki Actu en

February 28, 2014

Researcher discovers 39 new cockroach species, increasing genus Arenivaga fivefold

Researcher discovers 39 new cockroach species, increasing genus Arenivaga fivefold

From Wikinews, the free news source you can write!
Jump to: navigation, search

Friday, February 28, 2014

Science and technology
Related articles
Wikinoticias Ciencia y Tecnología.svg
Collaborate!
  • Pillars of Wikinews writing
  • Writing an article

Sexual dimorphism in Arenivaga.
Image: Heidi Hopkins.

Arenivaga distribution before and after the study.
Image: Heidi Hopkins.

Heidi Hopkins, a taxonomic researcher and PhD candidate at the Museum of Southwestern Biology of the University of New Mexico, in Albuquerque, New Mexico, United States, conducted a four-year study revising the Arenivaga genus of cockroaches, discovering 39 new species in the genus previously thought to contain 9 species. ZooKeys journal published her findings Wednesday.

The study involved examining over 5200 specimens from universities and collections throughout the United States. The researcher had to dissect the specimens’ genitalia to accurately distinguish the species as their external features were often not enough for identification. Hopkins was advised by Dr Kelly Miller during the investigation.

The species are also sexually dimorphic, making morphological association of females with males a challenge. The researcher published a key for adult males in the genus.

The study revealed a vaster distribution area than was previously thought, including additional regions in Southern US and over a half of Mexico.

Hopkins remarked about potential of further studies of the genus and Corydiidae, its parent family, “The extent of the radiation of this genus is quite surprising. These animals have remarkable adaptations that allow them to succeed in some of the harshest places on earth. I suspect that the thorough application of modern collection methods would reveal many more species of Arenivaga across Mexico, and many more species of Corydiidae in the deserts and dry places of the rest of the world.”

The study was a first revisit of the genus since 1920 with only one new species discovered since then. The study was supported by grants from American Museum of Natural History, Academy of Natural Sciences of Drexel University, National Museum of Natural History, and University of New Mexico.



Sources

Wikinews
This article features first-hand journalism by Wikinews members. See the collaboration page for more details.
Bookmark-new.svg


This text comes from Wikinews. Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution 2.5 licence. For a complete list of contributors for this article, visit the corresponding history entry on Wikinews.

February 1, 2012

California teacher arrested after photos indicated lewd acts on children

California teacher arrested after photos indicated lewd acts on children

From Wikinews, the free news source you can write!
Jump to: navigation, search

Wednesday, February 1, 2012

Photo:L.A. County Sheriff’s Dept.

An elementary school teacher of 30 years was arrested Monday in Los Angeles, California on the charge of 23 counts listed in the arrest warrant of performing a “lewd act on a child”.

The bail for Mark Berndt, 61, was raised from $2.3 million, which is $100,000 per count, to $23 million today. The original bail amount had been a mistake, said a spokesperson for the district attorney.

Authorities were tipped off by a photographic developer. The Los Angeles County Sheriff’s office said it had investigated and surveilled the teacher for almost a year before making the arrest. Capt. Mike Parker said photographic evidence collected from the suspect’s home is alleged to show children blindfolded with cockroaches crawling across their faces or children with a spoonful of liquid substance near their mouths. Parker also said a blue spoon was recovered from trash in the suspect’s classroom that “tested positive for semen.” Investigators from the special victims unit interviewed over 80 children and staff. Another ten children in the photographs — besides the 23 listed victims, then 6–10 years old — have not yet been identified. The investigations focused on the years between 2008 and 2010.

Berndt was fired from Miramonte Elementary in March 2011 but he had already been separated from students since the Los Angeles Unified School District found out about the investigation earlier that year.



Sources

Bookmark-new.svg


This text comes from Wikinews. Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution 2.5 licence. For a complete list of contributors for this article, visit the corresponding history entry on Wikinews.

Powered by WordPress