May 2019 - Favorite World Press

The FWP weekly digest of wondrous wildlife happenings
and other interesting items from the natural world

Creatures to meet | Things to learn
Things to do

Lisa S. French

As the days grow longer and buds burst into blooms, we’re on the lookout for the return of everybody’s favorite essential pollinator, the honeybee! If you have ever wondered why honeybees are so skilled at helping to transform flowers into fruit and veg like apples, avocados, blueberries, and broccoli, it’s because they’re wicked smart. How smart, you ask? Well, even though a honeybee’s brain is about 20,000 times smaller than a human brain, that seed-sized morsel of gray matter packs a lot of computing power. A honeybee brain is capable of managing 10 trillion computations a second—that’s 625 times the speed of most advanced supercomputers. Research conducted by scientists at the University of Melbourne indicates that honeybees can do basic arithmetic, understand the concept of zero, and learn and teach other bees how to gain rewards. All of that buzz-worthy brilliance is put to good use efficiently managing a complex series of tasks that contribute to the cross-pollination of 30 percent of human food crops and 90 percent of wild plants. Honeybees also use their smarts to locate prime floral real estate by color and smell and share the inside scoop on best bets for plentiful pollen and nectar with their hive mates through a complicated “waggle” dance language.

What’s more, these winged brainiacs are the ultimate team players, efficiently performing well-defined hierarchical functions within their colonies. The apis mellifera monarch’s, or queen honeybee’s, one and only job is to create more bees. The queen bee can lay up to 2,000 eggs a day which develop into queens, drones, or worker bees. The bees that you see buzzing about outside the hive collecting pollen and nectar from flowers are sterile female worker bees. Worker bees are also responsible for keeping the inside of the hive tidy as well as feeding the queen, drones, and bee larvae. Male bees or drones have only two functions in the hive, eating and mating with the queen. While that may sound like the good life, once a drone mates with the queen, it falls to the ground and dies. Drones that don’t make the cut with the queen are ejected from the hive by worker bees come winter.

Queen bees are not born to the throne. They are created through a process where larvae designated for insect royalty by their placement in special queen cells in the hive are fed exclusively the aptly named royal jelly. A milky substance that is secreted from glands in the heads of worker bees, royal jelly is composed of proteins, sugars, fatty acids, and trace minerals which help queens develop their reproductive capacity. Tasked with the very important job of keeping the colony humming with new offspring, a queen honeybee can live anywhere from one to six years, significantly longer than the seasonal life span of female worker bees and male drones.

Despite having an amazing capacity to problem solve and work collaboratively, one thing that honeybees have not been able to figure out on their own is how to protect themselves from the multiple factors including global heating, pesticide use, habitat loss, and parasites which have led to an estimated annual loss of over 30% of the honeybee colonies that are critical to pollinating one out of every three bites of the food we eat. According to the 2018-19 survey results from the Bee Informed Partnership, over the past winter, U.S. beekeepers lost 40% of their hives, which is the worst recorded loss since 2006.

It’s clear that when it comes to keeping global populations well-fed and environmental systems healthy and functioning, these tiny, brainy insects are the bee all end all. Whether you live in a big city, a small town, or somewhere in between, check out the Xerces Society’s tips on what to plant to create a safe haven for honeybees on your patch. You can also sponsor a hive through The Honeybee Conservancy and find Favorite World Press recommendations for pollinator-friendly seed bombs and supplies here.

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Lisa S. French May 27, 2019

Precious Parrots

Standing almost two feet tall and weighing in at approximately nine pounds, the moss-green kākāpō is the world’s largest and only flightless parrot. It is also one of the most critically endangered. Known as the “owl-parrot” due to its large eyes and head, this charmingly chubby forest inhabitant was common in its native New Zealand where it evolved over 30 million years, free from the threat of natural predators. Over the past few hundred years with only the minimal protection offered by its mottled, camouflaging feathers, the defenseless, ground-dwelling kākāpō was hunted to the brink of extinction by both humans and the invasive species introduced by European settlers. Habitat loss from forest conversion to farm-land also contributed to the parrots’ plummeting numbers, and by 1977 the solitary, nocturnal kākāpō had been reduced to a tiny population of just 18 birds. Although kākāpōs rebounded slightly to 51 individuals in the 1990’s, their future looked decidedly grim.

The plight of the kākāpō is further complicated by infrequent breeding. The parrots only mate every two to four years when native coniferous rimu trees bear the vitamin D rich fruit which they feed their young. And because females are solely responsible for incubating, parenting and foraging for food, eggs and fledglings are extremely vulnerable to predators when out of necessity they are left alone in the nest. Factoring in a loss of genetic diversity which helped to ensure the survival of chicks, the kākāpō was in desperate need of some avian assistance.

Fast-forward three decades, thanks to the intensive and innovative management of the critically endangered parrots by scientists at the New Zealand Department of Conservation, as of 2017, the kākāpō count was at 154. Following the transfer of the entire population of birds to three remote predator-free islands, Whenua Hou, Anchor, and Hauturu, the kākāpō recovery programme began monitoring the birds through every stage of development pitching in with nest protection, supplementary feeding and the hand raising of chicks. As a result of around the clock intensive care, this year the kākāpōs had a record-breaking breeding season resulting in 76 hatchlings. Scientists expect that about 60 of the young birds will make it to adulthood. While the kākāpō population is on the upswing, conservationists won’t breathe easier until their numbers get closer to 500. In the meantime, preservation of these precious parrots continues with international efforts aimed at ensuring their survival, including genome sequencing, drone-supported artificial insemination and the world’s first successful bird brain surgery. In honor of Endangered Species Day on May 17, we tip our wings to the captivating kākāpō and the dedicated scientists who continue to work tirelessly to save this rare species–bird by bird.

Update:

Following a tremendously successful 2018/2019 breeding season, and the unprecedented survival of 71 chicks to juvenile age, as of September 2019, the critically endangered kākāpō population has reached a record high of 213! You can read more about the ground-dwelling parrot progress here.

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Lisa S. French May 16, 2019

Good News for Gorillas

Home to over 3,000 different species of plants and animals, the Virunga Mountain range bordering Rwanda, Uganda and the Democratic Republic of Congo is one of the most biologically diverse places on earth. The best known and most beloved occupants of this UNESCO World Heritage site are the majestic mountain gorillas. Discovered by German explorer Captain Robert von Beringe in 1902, over the course of the 20th century, mountain gorillas suffered the impacts of habitat loss, hunting, war, and disease leading scientists to estimate that continued environmental pressures would render the critically endangered species extinct by the year 2000. Although populations of mountain gorillas in the Virunga range continued to dwindle to near extinction, 480 individuals had survived as of 2010.

An inspiring testament to the progress that can be achieved through a creative combination of government, NGO, and community-based conservation efforts, including eco-tourism, these gentle herbivores, vital to the health of forest ecosystems, are slowly making a comeback. Population surveys in 2016 found that the Virunga gorillas had increased to 604 individuals. The total population of mountain gorillas now stands at 1,004 which includes a second group in Bwindi Impenetrable National Park in Uganda. At a time when animal species around the globe are facing extreme challenges to their survival, this bit of good news for mountain gorillas underscores the vital importance of supporting wildlife conservation initiatives for the benefit of all inhabitants who share the planet.

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Lisa S. French May 7, 2019