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Showing 1-50 of 256 Information results for invasive species
...Some sexual species, such as L. pantai, are limited in their habitat ranges based on species richness and do better with low species diversity Both populations are active during the evenings when they hunt for prey and hide during the day in small shelters such as holes, bark, and cracks. Moreover, L. lugubris is considered an invasive species on many islands. Lepidodactylus was first...
Dasyurus quolls
...None of the species are experiencing serious fragmentation of their habitats, however, populations are continuing to decline in all species due primarily to a combination of severe fires, urban and agricultural expansion, and invasive predators. The invasive threats are predominantly cats and foxes, although cane toads are toxic when consumed, which occurs frequently. Some efforts to reduce invasive rabbit species using poison have also...
...Their non-poisonous and non-invasive status supports this statement. According to the IUCN Red List (2022), the conservation status of five Alsodes species are unknown, and the other 15 species are categorized from vulnerable to critically endangered, with two species (A. nodosus and A. gargola) considered the most stable and therefore of least conservation concern. Populations have been impacted by invasive fish species...
...Coccinella transversoguttata is historically a notable predator in its native range, as it mainly feeds on aphids that consume various plant species. It has the potential to control the size of an aphid population. This role is becoming diminished as invasive species, such as Harmonia axyridis and Coccinella septempunctata out-compete this species for resources. Harmonia axyridis and Coccinella septempunctata have also been known...
Icterus jamacaii Campo troupial
...Orange-backed troupials do the same, and that species may even kill the occupants of the nests during the invasion. Regardless, campo troupials likely have a negative effect on populations of other bird species such as: firewood-gatherers, rufous cacholotes, great kiskadees, and rufous horneros.Even though they are nest pirates, campo troupials are occasionally host to nest parasites such as shiny cowbirds.As...
Pteropodidae Old World fruit bats; flying foxes
...Many crop species are attractive food sources for pteropodids. Because cultivars are often developed from wild species, these commercial crops have the same characteristics that wild plants evolved to attract bats to their fruit. Fruit growers have experimented with visual, audio, and olfactory deterrents as well as electric wire to keep pteropodids from eating their crops. Pteropodids may also be dispersers of invasive plant...
...Ctenophores typically fall prey to a wide variety of organisms, including sharks, sea turtles, many species of boned fish, sea birds, as well as other ctenophores. In the Black Sea, the invasive Beroe ovata helped to save the ecosystem from a harmful invasive species of Mnemiopsis leidyi. By feeding on the fellow invasive ctenophore, Beroe ovata has helped create a balance between the organisms...
...Alternatively, geometer moth species that are oligophagous or have restricted ranges are at higher risk of population decline in the future. Perhaps one of the largest threat to such geometer moths is habitat loss due to anthropogenic activity. However, these effects are likely exacerbated by climate change and the introduction of invasive species, such as parasitoid flies and competitors for similar resources.
Ctenophora comb jellies
...Although the majority of ctenophores, up to 75%, live in warm waters, they are found globally in marine environments, including in Arctic seas, where certain species are found in abundance. Species of this phylum are native globally; however, they may be locally invasive. In one famous case, the ctenophore Mnemiopsis leidyi was accidentally introduced to the Black Sea in the early 1980s; within 10...
Hemidactylus frenatus Chichak, Common House Gecko
...Geckos of various species are sometimes exploited for traditional medicine and the pet trade in some Asian countries. In urban areas and other human populated locations, H. frenatus can inhabit household areas, and even enter homes. Some people welcome the geckos as good pest controllers, while others view them as pests.H. frenatus has a potentially greater impact as an invasive species. This gecko...
Melanoplus spretus Rocky Mountain Locust
...This species was most noted for its huge swarms that played economic havoc on farmers' crops in the late 1800's (Comstock, 1940)The species mades sounds by rubbing their hind legs together at rest. These calls were used for intraspecific communication (Kellogg, 1905) The species was a migratory insect and with its many invasions of North America it had been seen eating almost...
Sacculina carcini is a parasitic species, so its geographic range follows its host. Carcinus maenas, the green crab, is a major host. The green crab is considered a highly invasive species, so it is not clear where S. carcini's actual range is. Carcinus maenas has a native range of the upper European/North African coast, though it has since spread to most of...
...Some species in Chamaeleo are kept as pets. Some do very well in captivity and are bred easily. They are sought after for their colors and temperment. Because of the attraction to these species as pets, some have been introduced as invasive species. Some species are invasive in states like Florida, Hawaii, and California. They may have been released into the wild when their...
Pseudechis porphyriacus Red-bellied Black Snake
...The species is said not to be aggressive unless provoked. If bitten, humans should seek immediate treatment. Red-bellied black snakes are marked as a species of "Least Concern" under the IUCN Red List. This species has no special status for the US Federal list, CITES, and State of Michigan list.A concern for this species is the invasion of cane toads (Rhinella marina...
Spotted lanternflies (Lycorma delicatula) are a species of planthoppers native to China, Taiwan, India, and Vietnam. The species is invasive to Korea, Japan, and the United States. Spotted lanternflies appeared in Berks county, Pennsylvania in 2014. Since then, it has appeared in localized areas of New York, Delaware, and Virginia. If seen, spotted lanternflies should be killed on sight and reported at the Pennsylvania...