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Natural History Survey

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  • LMBS researchers present at Perch Summit

    Mar 24, 2014 8:00 am

    INHS Lake Michigan Biological Station researcher Charles Roswell and co-authors Sergiusz Czesny, Josh Dub, and Will Stacy were invited to present on the “Status and Trends of Yellow Perch Fishing and Harvest in Lake Michigan,” at the Lake Michigan Yellow Perch Summit hosted by the Lake Michigan Committee of the Great Lakes Fishery Commission. The summit took place at the UIC forum in Chicago and consisted of talks about the status of the Lake Michigan ecosystem and perch fishery by researchers and managers for members of the public (in-person and streamed live online), followed by discussion among all participants (stakeholders, researchers, and managers).

  • Lice and bacteria, partners in parasitism

    Apr 14, 2017 8:00 am

    Illinois Natural History Survey scientist Kevin P. Johnson and former INHS post-doc Bret Boyd participated in a study that sought to better understand the evolutionary history of bacteria residing within lice.

  • Digitization efforts make wealth of INHS collections more accessible

    Apr 26, 2017 8:00 am

    INHS is home to over 9 million biological specimens, including plants, insects, fish, reptiles, and fossils. Learn how we're digitizing these specimens to make them accessible to everyone.

  • INHS Scientist Mark J. Wetzel appointed Associate Editor of Megadrilogica

    May 2, 2007 8:00 am
  • Loren Merrill

    Bird gets worm, makes history

    Jun 19, 2017 8:45 am

    Illinois Natural History Survey postdoctoral researcher Loren Merrill describes how he observed the unusual behavior of a pied-billed grebe from his balcony, leading to an insight published in the Wilson Journal of Ornithology.

  • Matthew Niemiller

    Researchers sample a DC swamp to study a spineless creature

    Jun 19, 2017 9:45 am

    INHS ecologist Matthew Niemiller led a recent study that used an environmental DNA approach to search for Hay’s Spring amphipod in its Rock Creek Park home. “It’s not a cute, cuddly or charismatic species. But we’re still learning more and more about groundwater ecosystems. And there is evidence that these crustaceans are important indicators of groundwater quality, and may play important roles in water purification and nutrient cycling over time.”

  • Attack of the Flying Fish

    Jun 24, 2010 2:00 pm

    The Illinois Times talks to Kevin Irons, INHS LTRMP Fish Specialist, about sampling for Asian carp. Irons catalogs some of the things that he does to make sampling on the Illinois River safe.

  • female cowbird and male cowbird perched on wire fence

    Cowbirds change their eggs’ sex ratio based on breeding time

    Jun 24, 2020 9:15 am

    Brown-headed cowbirds show a bias in the sex ratio of their offspring depending on the time of the breeding season, researchers report in a new study. More female than male offspring hatch early in the breeding season in May, and more male hatchlings emerge in July.

  • Fossil Insect Collaborative kicks off

    Jul 9, 2013 8:00 am

    INHS Entomologist Sam Heads is part of a collaborative effort to digitize fossil insect collections across the country. The Fossil Insect Collaborative is a joint venture between the Virginia Museum of Natural History (VMNH), the American Museum of Natural History, the Yale Peabody Museum, the Museum of Comparative Zoology at Harvard, the University of Colorado, the University of Illinois, and the University of Kansas. The project officially kicked off the 1st of July, 2013.

  • Some wildlife greatly affected by drought

    Aug 8, 2012 8:00 am

    Hot, dry temperatures have been a devastating problem for some species. INHS Avian Ecologist Jeff Hoover was interviewed for an article about the impact of this year's drought on songbirds. According to Hoover, caterpillar populations have been impacted by the drought, which means less food for the nestlings and more time spent foraging by adults. Their monitoring has shown a failure of 37% of nests this year, compared to 22% in 2010.

  • leopard resting in a tree

    Study finds Serengeti leopard population densities vary seasonally

    Aug 31, 2020 8:30 am

    A study of camera-trap data from Serengeti National Park in Tanzania found that leopard population densities in the 3.7-million-acre park are similar to those in other protected areas but vary between wet and dry seasons. The fluctuations appear to be driven by the abundance of prey and how this affects interactions with other large carnivores like lions.

  • gray squirrel

    The squirrel experiment

    Sep 21, 2023 9:45 am

  • Soybean Aphids setting up for potential comeback

    Oct 25, 2011 8:00 am

    INHS Entomologist David Voegtlin sampled soybean aphids this fall and found levels that could lead to higher densities of aphids on crops in 2012. In 2009, fall densities were extremely high and fungal infection wiped out large numbers of the aphids. This fall's lower humidity and lower density of aphids could lead to greater survival of overwintering aphids.

  • Making history on the mighty Mississippi

    Nov 5, 2006 4:30 pm

  • Bullfrogs insensitive to road salt

    Nov 6, 2013 8:00 am

    INHS post doctoral researcher Tanya Hawley Matlaga, INHS Herpetologist Chris Phillips, and INHS Ecotoxicologist David Soucek report that bullfrogs are less sensitive to elevated chloride concentrations than some other amphibian species. The study was designed to mimic the level of salt found in roadside ponds following de-icing events. The study found that bullfrog tadpoles did not experience reduced survival, growth, or ability to evade predation in elevated chloride concentrations, and thus, their populations are not expected to be impacted by road salt. While this is good news for bullfrogs, it's an additional stress for other species inhabiting ponds with these voracious predators.

  • A new species of Drypetes described

    Nov 26, 2013 8:00 am

    In a recent paper in Phytokeys, INHS Botanist Dr. Geoffrey Levin described a new species of Drypetes from Costa Rica. This new species of flowering tree produces asymmetrical drupes (fleshy fruits), leading to its name Drypetes asymmetricarpa.

  • INHS plant ecologist finds that many retailers sell mislabeled invasive vines

    Jan 8, 2018 9:45 am

    Gardeners hoping to celebrate the beauty of American bittersweet — a native vine that produces orange berries in the fall and is used for wreaths — may be unwittingly buying an invasive bittersweet instead. That’s because many Midwestern retailers are selling oriental bittersweet with labels misidentifying it as the native plant, researchers report.

  • Fig wasps older than known fig trees

    Jan 17, 2014 8:00 am

    INHS Paleontologist Sam Heads found an ancient fig wasp that pre-dates any known fig trees. According to Heads, “This is a tiny parasitic wasp, it's the smallest fossil wasp found in this particular deposit and it's the oldest representative of its family. More importantly, it’s possible that this wasp was fig-associated, which is interesting because it’s Early Cretaceous, about 115 to 120 million years old. That's a good 65 million years or so prior to the first occurrence of figs in the fossil record.”

  • Biology of Small Mammals, by INHS mammalogist Joe Merritt selected as an "Outstanding Academic Title" for 2010

    Jan 25, 2011 4:30 pm

    The Biology of Small Mammals, by INHS mammalogist Joe Merritt was selected by Choice Reviews as one of the "Outstanding Academic Titles" of 2010. It was one of 10 books selected for the list from the Zoology category.  Choice Reviews is a publication of the American Library Association.

  • Soil characteristics may be related to chronic wasting disease persistence, study finds

    Feb 5, 2018 3:30 pm

    Deer infected with chronic wasting disease are doomed to a slow and certain death, eventually wasting away as they lose the ability to eat and drink. There is no cure and no vaccine, and the number of infected deer continues to rise every year. But University of Illinois scientists recently published a new study that could help explain the movement of the disease across the landscape.

  • "Life in the Soil" a must-read for naturalists and gardeners

    Feb 7, 2008 12:00 am

    Author James Nardi, adjunct scientist with INHS, discusses his new book "Life in the Soil: A Guide for Naturalists and Gardeners" in a February 7, 2008 article published in the Anchorage Daily News. The well-organized book features information on a wide array of animals living in the soil beneath our feet. Readers will find taxonomic data, information on food web interactions, and species impact for gardeners. A December 20, 2007 Washington Post article discusses the book and its release. His book is available for purchase at Amazon.com.

  • Scientists seeking rare river crayfish aren't just kicking rocks

    Feb 27, 2018 8:30 am

  • INHS researchers address vector borne diseases through CDC Center of Excellence

    Mar 2, 2017 8:00 am

    INHS Scientists Nohra Mateus-Pinilla and Richard Lampman will partner with the College of Veterinary Medicine to conduct research for the new Upper Midwestern Center for Excellence in Vector Borne Diseases, funded by the Centers for Disease Control and Prevention. The center is headquartered at the University of Wisconsin–Madison. The Illinois team will develop forecasting models and statistical spatial risk maps of regionally important mosquitoes and ticks and the diseases that they cause. Using optimization algorithms, historical data on field trapping of mosquitoes and ticks, and other ecological methods, the Illinois team will also help determine the level of surveillance data required to make effective control decisions.

  • The insect now known as Kaikaia gaga, a new genus and species of treehopper.

    Grad student names new treehopper species after Lady Gaga

    Mar 16, 2020 9:00 am

    The insect now known as Kaikaia gaga represents a new genus and species of treehopper.

  • The extinction of the passenger pigeon

    Mar 25, 2014 8:00 am

    On Sept. 1, 1914, Martha, the last living passenger pigeon, died at the Cincinnati Zoo. This seemingly abundant bird had been decimated by hunting, leaving them vulnerable to other predators. Following the opening of an exhibit at the Harvard Museum of Natural History, INHS Ornithologist Kevin Johnson, who reconstructed the family tree of the passenger pigeon, was interviewed.

  • Ph.D. candidate Sulagna Chakraborty, center, led a study of farmer awareness of ticks and tick-borne diseases with U. of I. pathobiology professor Rebecca Smith, left, and Illinois Natural History Survey wildlife veterinary epidemiologist Nohra Mateus-Pinilla.

    Are Illinois farmers aware of the risk of tick-borne diseases?

    Apr 6, 2023 2:45 pm

    Tick-borne illnesses like ehrlichiosis, Lyme disease and Rocky Mountain spotted fever are on the rise in Illinois, and outdoor workers like farmers are at higher risk than those who spend more time indoors. 

    blog post

    blog postsTick-borne illnesses like ehrlichiosis, Lyme disease and Rocky Mountain spotted fever are on the rise in Illinois, and outdoor workers like farmers are at higher risk than those who spend more time indoors. 

    Tick-borne illnesses like ehrlichiosis, Lyme disease and Rocky Mountain spotted fever are on the rise in Illinois, and outdoor workers like farmers are at higher risk than those who spend more time indoors. 

  • First comprehensive treatise on leafhopper genus Zyginama published

    Apr 17, 2008 3:30 am

  • Illinois armadillo sightings becoming more frequent

    May 20, 2008 11:00 am

    Dr. Joyce Hofmann discusses the possible reasons for more frequent armadillo sightings in Illinois in the May 16, 2008 On-line edition of the Journal Gazette Times-Courier. Dr. Hofmann has been keeping track of the sightings since 1999 for a manuscript she is compiling. She says that the animal, which is abundant southern Missouri, began to be sighted Southern Illinois during the late 1970s. To read the Journal Gazette article in its entirety, visit this website.

  • Asian Carp barrier catches turtle

    Jun 14, 2012 8:00 am

    A barrier designed to prevent Asian Carp from reaching Lake Michigan had the unintended consequence of catching a snapping turtle. This was the first known instance of an animal trapped in the mesh and the turtle was released unharmed. When first installed, migrating turtles were completely blocked by the carp barrier. Subsequent gates installed along the length of the barrier allow turtles to migrate through. The location of the gates was based on the multi-year radio telemetry study conducted by INHS herpetologists on the endangered Blandings' Turtle and other turtles in the area.

  • Microbes in gut help western corn rootworm survive rotation

    Jun 26, 2013 8:00 am

    University of Illinois researchers, including INHS Behavioral Entomologist Dr. Joseph Spencer, found that differences in the microbial community in the gut of western corn rootworms (WCR) can change their ability to survive crop rotation.

  • Study links fish stress hormones to whether they take the bait

    Aug 22, 2017 11:00 am

    Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the “fight or flight” hormones, peak first, followed more gradually by cortisol. A new study reported in the Journal of Experimental Biology finds that largemouth bass whose cortisol levels rise most after a brief bout of stress are inherently harder to catch by angling. This could affect recreational fishing. If anglers are primarily capturing fish whose stress levels dictate whether they are likely to strike at a lure, “we could potentially be selecting for fish that are harder to catch,” said University of Illinois natural resources and environmental sciences professor Cory Suski, who led the new research with Illinois Natural History Survey research scientist Jeffrey Stein and graduate student Michael Louison.

  • prairie fire

    Study reconstructs 232-year history of prairie fire in Midwestern U.S.

    Oct 19, 2021 11:15 am

    Researchers combed through thousands of historical documents for first-person accounts of fires occurring between 1673 and 1905 in the Midwestern tallgrass prairie. Their study is the first systematic analysis of the timing, causes and consequences of prairie fires in this part of the world. They report their findings in Natural Areas Journal.

  • INHS scientists continue fish monitoring begun over a century ago

    Nov 1, 2012 8:00 am

    INHS fisheries biologist Josh Sherwood was featured in a recent Environmental Almanac about the Fishes of Champaign County surveys. Sherwood is conducting the fifth iteration of the surveys that began in 1885. The original Fishes of Champaign County survey was conducted by Stephen A. Forbes between 1885 and 1901 and found 65 species of fishes. A second version of the Fishes of Champaign County was conducted by Forbes and Robert E. Richardson, and added 14 species to the list. R. Weldon Larimore and Phillip W. Smith conducted the third survey in the 1950s and added 9 more species to the list. Larimore and Peter Bayley conducted the fourth survey in 1987 and brought the species list to 94 species of fishes.

  • INHS Chief Dr. Lorin I. Nevling to Retire

    Nov 5, 1996 11:00 am

  • New species of mole cricket named for INHS Entomologist Sam Heads

    Dec 15, 2011 12:00 pm

    Oscar Cadena-Castaneda, a graduate student at the Universidad Distrital Francisco Jos de Caldas in Bogot, Colombia has named a new species of mole cricket (Orthoptera: Gryllotalpidae) in honor of INHS entomologist Dr. Sam Heads. The new species, Scapteriscus headsi was described in a paper published on 12 December in the journal Zootaxa.

  • A new study adds to the evidence that apex predators like pumas play a unique role in ecosystems that is not fulfilled by smaller carnivores.

    Camera-trap study provides photographic evidence of pumas' ecological impact

    Jan 23, 2023 10:45 am

    A camera-trap study of two ecosystems – one with pumas and one without – adds to scientists’ understanding of the many ways apex predators influence the abundance, diversity and habits of other animals, including smaller carnivores. The study followed multiple members of the order Carnivora, looking at how the largest carnivore in each locale influenced the behavior and presence of other animals in the same vicinity.

  • Land purchase to benefit subterranean ecosystem and endangered species

    Jan 28, 2014 8:00 am

    On 25 January 2014, INHS Biologist Steve Taylor gave a presentation at a ceremony announcing the purchase of 535 acres of land over Illinois' largest and most biologically diverse cave. Fogelpole Cave is home to several protected species including the endangered Illinois Cave Amphipod and Indiana Bat. Taylor serves as science advisor for the project, which is being managed by Clifftop, a non-profit organization.

  • Illinois otters have highest dieldrin levels

    Feb 7, 2014 8:00 am

    INHS Researcher Samantha Carpenter was featured in an article in Michigan State University's Great Lakes Echo, about the high levels of dieldrin and other contaminants in the bodies of river otters. Carpenter was lead author on a study published in October in the journal Ecotoxicology and Environmental Safety.

  • New director starts May 1, 2008

    Mar 4, 2008 12:00 am

  • Report: Milkweed losses may not fully explain monarch butterfly declines

    Mar 13, 2017 8:00 am

    Steep declines in the number of monarch butterflies reaching their wintering grounds in Mexico are not fully explained by fewer milkweeds in the northern part of their range, researchers report in a new study.

  • INRS Naturally Illinois Expo attracts thousands

    Mar 14, 2011 6:00 pm

    The Naturally Illinois Expo, held March 11th and 12th, was attended by a record 1700 students from 22 Illinois schools on Friday. On Saturday, many of these students returned to share the Expo with their families. There were 54 exhibits from the 5 surveys. INHS scientists provided exhibits on plants, backyard insects, fossil insects, turtles, mammals, birds, aquatic pollutants, mosquitoes and their diseases, crayfish, fish, mussels and exotic invasive species. Other favorites included Kids' Fossil Dig, Archaeological Dig, Weather on Your Birthday and Biofuels.

  • Double the traps, double the turkeys

    Apr 11, 2018 11:15 am

  • Research finds that male largemouth bass should be released quickly

    Apr 16, 2014 8:00 am

    A recent study by INHS Sport Fisheries Ecologist Jeff Stein suggests that anglers involved in catch and release fishing should release male largemouth bass as quickly as possible to return to nest guarding. For more information, visit the Sportfish Ecology Lab website.

  • Jeff Hoover

    How does climate change affect global bird reproduction?

    May 1, 2023 2:15 pm

    A new study reported in the Proceedings of the National Academy of Sciences assessed changes in the reproductive output of 104 bird species between 1970 and 2019. Illinois Natural History Survey avian ecologist Jeff Hoover, a co-author of the paper, discusses the findings and how climate change is altering bird ecology and health around the world. 

  • Brown marmorated stink bug in Illinois

    May 2, 2011 8:00 am

    The Brown Marmorated Stink Bug is a new invasive species being found in Illinois that is getting a lot of media attention. INHS Entomologist Chris Dietrich discussed the bugs in the Geneva Republican, stating that with no natural predators, these bugs can become a nuisance species. He adds that, “They’re actually considered a delicacy in some parts of Mexico.” Illinois Cooperative Agriculture Pest Survey Entomologist, Kelly Estes was interviewed about the bugs on WGLT - Bloomington NPR affiliate and WILL 580. This species has been confirmed in Cook, Kane, Champaign and McLean counties but scientists are still determining the extent of its spread. She asks that if you think you have this (or other pest species) send her a photo or the actual specimen for positive identification. She can be contacted at invasives@inhs.illinois.edu.

  • Scouting for Black Cutworm Moth Larvae

    May 8, 2012 8:00 am

    Illinois Cooperative Agricultural Pest Survey Coordinator Kelly Estes advises that corn growers should begin inspecting for damage from Black Cutworm Moth larvae. Based on adult moth captures in March and April, larvae should be nearing the leaf-cutting stage. For more information, check out this Cutworm Fact Sheet.

  • Cats pass disease to wildlife, even in remote areas

    May 13, 2011 1:00 pm

    INHS Wildlife Veterinary Epidemiologist Nohra Mateus-Pinilla and graduate students Shannon Fredebaugh recently published a study that found that even in remote parts of a natural area, cats spread disease to wildlife. Their study, Allerton Park in Monticello, does not have bobcats which strongly suggests feral house cats are responsible for spreading the feline dependent Toxoplasma gondii parasite.  Infection by the parasite causes neurological problems and possible death in humans and other animals. "If one infected cat defecates there, any area can become infected," Fredebaugh said. "It just takes one cat to bring disease to an area."

  • Monitoring for Brown Marmorated Stink Bugs

    May 26, 2015 8:00 am

    Illinois Cooperative Agricultural Pest Survey director Kelly Estes was asked about Brown Marmorated Stink Bugs, native to Asia, currently found in the eastern United States. Estes explained that BMSB are good hitchhikers, able to be transported by people and packages. This, and other species will be discussed during the Invasive Species Symposium this Thursday at University of Illinois.

  • Scientists find world’s oldest fossil mushroom

    Jun 7, 2017 4:30 pm

    Roughly 115 million years ago, when the ancient supercontinent Gondwana was breaking apart, a mushroom fell into a river and began an improbable journey. Its ultimate fate as a mineralized fossil preserved in limestone in northeast Brazil makes it a scientific wonder, INHS scientists report in the journal PLOS ONE.

  • Paleontologist Sam Heads in the lab

    A donation for the ages

    Jun 26, 2018 8:15 am

    A recent gift of thousands of fossils provides insights about a dynamic stage in the climatic evolution of North America.