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A Tale of Two Mantises

Praying Mantises, insects in the order Mantodea were so named because of the prayer-like posture of their folded front legs. In the eyes of their prey there’s nothing divine about mantises. There are more than 2,300 species of mantises worldwide and while they vary in size, shape and color they all have one thing in common, they are voracious predators. Cincinnatians can encounter two remarkable mantis species; the native Carolina Mantis (Stagmomantis carolina) and the introduced Chinese Mantis (Tenodera sinesis).

The Carolina Mantis varies in color from light-green to medium-gray and is normally between 1-1/2″ and 2-1/2″ long. These mantises range from the eastern and central United States south through Central America and into northern South America. Carolina Mantis nymphs have the ability to alter their color to match their habitat each time they molt. Adult male Carolina Mantises are strong fliers and will actively stalk their prey. Adult female Carolina Mantises have shortened wings and are heavier bodied; they cannot fly so they lie in wait to ambush their prey.

Carolina Mantis

Carolina Mantis

The Chinese Mantis varies in color from light-green to brown and is normally between 3-1/4″ and 4-1/4″ long. Native to Eastern Asia the Chinese Mantis was allegedly introduced to the United States late in the 19th century to control agricultural pests. By most accounts the Chinese Mantis has done little to control pests despite having become established throughout most of the United States. In some areas the presence of the larger Chinese Mantis has negatively impacted the smaller Carolina Mantis.

Chinese Mantis

Chinese Mantis

Both Carolina and Chinese mantis hatchlings emerge from egg cases in spring and are so small they can be dispersed by strong winds. As the young mantises grow so too does their choice of prey; tiny fruit flies are replaced by increasingly larger flies, bees and moths. Adult Carolina Mantises can capture medium-sized butterflies while adult Chinese Mantises can capture hummingbirds. Both species will mate in late summer or early autumn, leaving their egg cases on the stems of shrubs or bushes. These egg cases will endure even the harshest winters to deliver the next generation the following spring.

Mantises are among the world’s most recognizable and beloved insects. Their grace and ferocity have inspired poets and martial artists. Children the world over have marveled at them in backyards and kept them as pets in quart jars. If you see a mantis this summer please take a few minutes to observe and appreciate one of Cincinnati’s most amazing insects.

Winton Ray / Curator of Invertebrates, Cincinnati Zoo & Botanical Garden

July 1, 2014   1 Comment

From the Passenger Pigeon to Conservation at the Cincinnati Zoo

Guest blogger: Sophie Williams, Advanced Inquiry Program (AIP) student and consultant on the Passenger Pigeon Memorial renovation

The reason we study the story of the passenger pigeon is not to be sad about its loss, but to be aware. Humans have a great capacity to do good, but we also have the ability to exhaust seemingly endless riches. It is important to recognize the impact we as humans can have on our environment, and take steps to conserve natural resources, both species and habitats, while we can.

The Cincinnati Zoo & Botanical Garden is at the cutting-edge of conservation research and action. From genetic research conducted at the Zoo’s Center for Conservation and Research of Endangered Wildlife (CREW) to the Zoo’s Go Green initiatives you can participate in both at the Zoo and at home, the Cincinnati Zoo is committed to saving endangered plants and animals from extinction in North America and around the world.  Here are just a few examples.

Sumatran Rhino Conservation

The Sumatran rhinoceros is one of the most endangered animals on the planet, with only about 100 individuals left. CREW’s Signature Sumatran Rhino Project has been a leader in captive breeding efforts for this critically endangered animal since 1997. In 2001, the first Sumatran rhino calf to be born in captivity in 112 years was born at the Cincinnati Zoo, thanks to CREW’s breakthrough research. Since then, two other calves have been born at the Zoo, and in 2007, the Zoo’s first-born rhino calf, Andalas, was relocated to the Sumatran Rhino Sanctuary (SRS) on the island of Sumatra to serve as the catalyst for a breeding program in the species’ native land. A few years later, Andalas’s mate, Ratu, gave birth to a healthy male calf, a huge success for the species!

In addition to its leadership role in the Sumatran rhino captive breeding program, CREW scientists partner with conservation organization Rhino Global Partnerships to protect Sumatran rhinos in the wild by helping to support Rhino Protection Units. These units are trained to protect the rhinos from poachers, the greatest threat to the species. Furthermore, financial support and CREW staff expertise are provided to facilitate the captive breeding program on Sumatra. CREW’s Signature Sumatran Rhino Project, with its international collaboration, is conservation work at its finest.

Sumatran rhino with baby (Photo: Dave Jenike)

Sumatran rhino with baby (Photo: Dave Jenike)

Gorilla Conservation

Western lowland gorillas are critically endangered in the wild, with less than 175,000 individuals. Due primarily to habitat destruction caused by logging, mineral mining, and agricultural expansion, wild gorilla numbers continue to shrink. The bushmeat trade—the killing of wild animals to be used as human food—is also a major threat to the western lowland gorilla population throughout the Central African rainforests. Over 1,000 gorillas are illegally poached for the bushmeat trade each year.

The Cincinnati Zoo supports wild gorilla conservation efforts such as the Mbeli Bai Study. The Mbeli Bai Study is the longest running research being done with wild western lowland gorillas. Through research, local education programs, publications, and documentaries, the Mbeli Bai Study is raising international awareness for gorillas and their struggle for survival.

Gorillas in Congo (Photo: Thomas Breuer)

Gorillas in Congo (Photo: Thomas Breuer)

African Lion Conservation

Another way the Zoo contributes to species conservation worldwide is through support of global initiatives to protect wildlife and minimize human-wildlife conflict. The Zoo provides funding to support Rebuilding the Pride, a community-based conservation program that combines tradition and modern technology to restore a healthy lion population while reducing the loss of livestock to lions in Kenya’s South Rift Valley.

Local Maasai research assistants track the movement of both livestock and lions in an effort to understand seasonal movements and identify conflict hotspots. Some of the lions have been fitted with Global Positioning System (GPS) collars for better tracking. The collars transmit four locations a day to a central server, giving detailed information on the exact movement of the lions. Knowing where the prides are lets herders know where to avoid grazing their livestock.

The program also deploys a Conflict Response Team to mitigate any conflicts that arise between people and lions. When herders must move through areas with lions, they call on community game scouts to accompany them for extra protection. The team also helps find and rescue lost livestock that would have otherwise fallen victim to predation.

Thanks to these efforts, lion populations in the region are growing. Once down to a low of about 10 known lions in the area, the population is now estimated to be nearly 70. The prides have been producing cubs and new lions are moving in from surrounding areas. The Rebuilding the Pride program has greatly contributed to the robustness of the lion population, minimized human-wildlife conflict, and become a strong community-based conservation program.

Lions in Kenya (Photo: Lily Maynard)

Lions in Kenya (Photo: Lily Maynard)

To read the other posts in this series, click here. Join us in April as we celebrate Earth Day and community activism!

March 17, 2014   3 Comments

Calling All Artists!!!

Artists are needed to participate in the 2nd Annual Rain Barrel Art Project, hosted by the Regional Storm Water Collaborative and the Cincinnati Zoo & Botanical Garden. This joint effort continues to educate the community about water conservation and pollution caused by storm water runoff. A great way to reduce that runoff is to harness rainwater in your very own rain barrel. Typically, rain barrels are a drab color, but with the touch of the artists, they come alive with scenes of nature, wildlife, Cincinnati, and many other designs, making them much more appealing to install on the side of your home. Utilizing a rain barrel could save a homeowner up to 1000 gallons of water in just one summer.

A rain barrel painted by Lauren, a Cincinnati Zoo employee, for the 2013 Rain Barrel Benefit Auction.

A rain barrel painted by Lauren, a Cincinnati Zoo employee, for the 2013 Rain Barrel Benefit Auction.

Artists may submit their artwork ideas via SaveLocalWaters.org now through January 25th, 2014. The top 50 entries accepted will be given rain barrels provided by the Metropolitan Sewer District of Greater Cincinnati, to bring their proposed artwork to life. The completed barrels will be displayed at our Go Green Garden Exhibit during the month of April 2014. We are thrilled to be hosting the rain barrel event once again. As the Greenest Zoo in America, we are always looking for ways to inspire our community to take action that can impact the environment in positive ways.

The grand finale to the event is the Rain Barrel Art Auction scheduled on April 24th, 2014. The painted rain barrels will be auctioned during our 5th Annual Party for the Planet Earth Day Celebration. Proceeds from the auction will be split between the Zoo and the Regional Storm Water Collaborative to further more education and awareness.

Painted rain barrels on display in the Go Green Garden during Party for the Planet, 2013.

Painted rain barrels on display in the Go Green Garden during Party for the Planet, 2013.

For more information regarding the Rain Barrel Art Project or SaveLocalWaters.org, contact John Nelson, Public Relations Specialist, at 513-772-7645 or visit the website at: http://savelocalwaters.org/rain-barrel-art-project

December 27, 2013   2 Comments