invasive-species

COLLEGE STATION, Texas — Texas A&M Forest Service has confirmed emerald ash borer in Delta, Erath, Hardin, Walker and Wood counties, continuing the spread of the invasive insect into new areas of Texas. Eight new counties have been confirmed with the invasive this year. The detections were made through Texas A&M Forest Service’s statewide emerald ash […] The post Texas A&M Forest Service Detects …

Burmese pythons are an invasive species in the Everglades, and the challenge is part of initiative to remove them The winner of this year’s annual Florida Python Challenge hunted down and eliminated 96 invasive Burmese pythons from the Everglades national park, as part of an initiative to remove hundreds of the snakes from the area every year. The challenge invites hunters to participate in 10 da…

Biologists have long wondered how such a small number of individuals from the invasive species managed to colonize the island so successfully. Few invasive animals have reshaped an ecosystem as dramatically as the brown tree snake, a species commonly used in textbooks to illustrate the damage biological invasions can cause. Native to Australia and the [...]

Check out this new paper, led by long-time FERG-friend Max Tercel, now published in Molecular Ecology! Intraguild interactions drive the dynamics of a complex community of globally invasive ant species Invasive species adversely affect biodiversity, but little is known about how ecologically similar invaders interact. Such intraguild interactions may drive non-native community dynamics and their …

Two large Asian praying mantis species have established breeding populations across parts of Europe. The insects are reportedly eating native pollinators, killing native mantis males during mating, and pushing steadily northward as warming climates open new territory. The species — Hierodula tenuidentata and Hierodula patellifera — have been present on the continent for roughly a decade. Their nu…

Aquatic invasive non‑native species can disrupt the delicate balance of our ecosystems, displacing native wildlife and altering habitats. From spreading diseases to creating new competition, their impacts can be far-reaching.  In our increasingly connected world, these species are spreading more easily than ever, and climate …

The New Zealand mudsnail (NZMS; Potamopyrgus antipodarum ) is a widespread aquatic invasive species that is parthenogenic, requiring only a single individual to initiate an infestation. Fish hatcheries–which are critical infrastructure that raise fish to support conservation, recreation, and subsistence fisheries–frequently use local water sources to provide cool water and are especially vulnerab…

You have likely seen invasive species permeate your local neighborhoods or state, but you may not have recognized them. Many invasive plants, especially, can be deceptive in how threatening they are, especially if they are beautiful or unassuming. They may blend in well with their surroundings. One of the most widespread in the U.S. is […] The post How Kudzu Became One of the Most Invasive Vines …

Grass carp ( Ctenopharyngodon idella ) is an invasive herbivore observed in small numbers in the Laurentian Great Lakes since the 1980 s with records from all lakes except Lake Superior. Identification of diploid, age-1 + grass carp from the Sandusky River, a Lake Erie tributary, in 2012, prompted targeted efforts to evaluate the status of grass carp reproduction in the Lake Erie Basin. In 2014, …

This study compared the efficacy of a benthic mat alone with carbon dioxide infusion under a mat for killing Dreissena polymorpha (Pallas, 1771) (zebra mussel). Three sites were selected in Loon Lake, Sleeping Bear Dunes National Lakeshore, Benzie County, Michigan, for replication of reference, benthic mat, and carbon dioxide mat treatments. Within a site, three 4-meter (m) x 4-m plots were delin…

Zebra mussels (Dreissena polymorpha) have caused significant ecosystem changes across North America since their introduction, yet their effects on fish populations remain poorly understood, particularly in Great Plains reservoirs. We quantified effects of zebra mussel invasions on water quality and fish assemblages across 25 reservoirs >5 km2 in Kansas, U.S., where invasions have occurred over th…

This study examines the spread and ecological impact of invasive Flowerhorn cichlids (Amphilophus spp.) in Lake Sampaloc, Philippines, driven by both accidental release and intentional aquaculture practices. Field observations and literature reveal that these highly adaptable and aggressive fish outcompete native species, contributing to biodiversity decline amid increasing pollution, eutrophicat…

Red swamp crayfish (Procambarus clarkii) are the most widespread invasive crayfish species, largely dispersed through human mediated activities. Given their ability to disrupt aquatic ecosystems and damage human infrastructure through burrowing, identifying areas of increased introduction risk is valuable for early detection and management. To assist managers, we developed a risk assessment model…

Invasive carp pose ecological and economic risks to North American freshwater systems. This study uses the Fluvial Egg Drift Simulator to model the drift of invasive silver carp ( Hypophthalmichthys molitrix) eggs and larvae after hypothetical spawning in Pools 1–10 of the Upper Mississippi River. Although adult invasive carps have been detected in this region, no reproduction has been confirmed …

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