Non-Native Species and the Natural Balance

Non-Native Species and the Natural Balance - Burmese Python
Burmese Python

People often disturb the delicate balance of the natural world by transporting plants, animals, or insects from one region to another, either accidentally or intentionally. When non-native species have no predators to keep them in check, or they outcompete local species for food or space, the natural balance is disrupted. The consequences are often negative.

The list of known cases of destruction caused by non-native species is extensive. Researchers say that introducing outsiders has led to 60% of local bird, mammal, and reptile extinctions. Over the past decade, Florida has spent an estimated six million dollars to control Burmese pythons. These large snakes were brought into the U.S. and sold as pets. When they grew too big to handle, people released them into the Florida Everglades. Without natural enemies in America, these snakes have been preying on local wildlife, including alligators, domestic dogs, cats, and even cattle.

A single Japanese knotweed plant brought into the U.S. can grow rapidly, has no natural predators here, and can crowd out other species, damaging buildings and drainage systems. This plant has appeared in 43 states, including Alaska. Even viruses and bacteria have been introduced from other parts of the world. COVID-19 is one example, but there are lesser-known cases too. For instance, the West Nile virus came into the U.S. from Uganda.

The number of invasive non-native species is huge. It includes Asian carp, parachuting Joro spiders, kudzu, giant hornets, sea lampreys, zebra mussels, South African red weevils, red swamp crayfish, and starlings, among others.

The U.S. government spends over three billion dollars annually on managing invasive species, and more than $150 billion yearly on agricultural damages. Globally, the bill reaches $423 billion. All of this stems from humans acting as poor stewards of the natural resources God has given us.

— John N. Clayton © 2025

Reference: The American Legion Magazine for August 2025, pages 20 -26.

Murder Hornet Madness

Murder Hornet Madness - Asian Giant Hornet
Asian giant hornet (Vespa mandarinia)

The media can stir up unfounded and destructive emotional reactions to what, in reality, are minor events. In May of 2020, the media announced that Asian giant hornets (Vespa mandarinia) hornets had been found in Washington State and British Columbia. The media referred to them as “murder hornets” and expressed the fear that those hornets would sweep across the continent, killing people with their lethal stings. That caused some panic, especially in the eastern United States, which could be called “murder hornet madness.”

The Connecticut Agricultural Experiment Station in New Haven had numerous calls from people who believed they had a murder hornet in their backyard. In all cases so far, the specimen turned out to be a European hornet, bald face hornet, robber fly, or cicada-killer wasp.

To quell murder hornet madness, here are the facts about the Asian giant hornets from Science News:

1) They hunt for honeybees, not people, and the concern is for the honey industry, not because they will kill humans. A few months ago, we posted about how the honeybees have devised a defense against them.

2) Their nests have all been destroyed.

3) Studies show that migration to the east is almost impossible because of the mountains and other natural barriers in the way.

4) None of them have been seen anywhere but in the coastal ranges of Washington state and British Columbia. That is 3000 miles away from the people calling their local entomologists claiming to see them in their yards or parks.

Expert entomologist Gale Ridge, who has been working on the Asian giant hornet issue, says, “The combination of half-listening and overdramatization of the facts by the media creates an anxiety driven stew.” There is a threat to honeybees, making it essential to prevent this invasive species from getting a foothold in North America. However, Asian giant hornets are not a direct risk to humans.

We need to realize that the media are trying to get viewers and readers. They often overlook or overdramatize the facts, even creating “murder hornet madness.” That is true not just in cases of natural phenomena but also in politics and religion.

— John N. Clayton © 2021

Reference: Science News, December 19, 2020 and January 2, 2021.