Exotic Species

EXOTIC SPECIESGroup 12 What is EXOTIC SPECIES?- is a species introduced either accidentally or deliberately by huan actions into places beyond its natural !eo!raphical ran!e"- #on-nati$e species can ha$e $arious e%ects on the local ecosyste"- Introduced species that ha$e a ne!ati$e e%ect on a local ecosysteare also 'no(n asinvasive species"- NOT ALL non-nati$e species are considered in$asi$e"- Soe ha$e ore ne!ati$e e%ect and can) in *act) be benefcial as an alternati$e to pesticides in a!riculture *or e+aple",o( -o These Species Get Introduced?1. Intentional introductions- species that are intentionally transportedto a ne( re!ion to. establishent in the (ild establish independent breedin! populations econoic !ain Apple SnailFoxMonterey Pine huan en/oyent aesthetically ipro$in! public recreation areas or pri$ateproperties cultural nostal!ia interests o* conser$ationFeral atNor!ay Maple". #nintentional introductions - species are transported by huan $ectors - usually the results o* containated *rei!ht or o$eent o* containated (ood products) plants or *ood products

$lac% &atIpacts o* E+otic Species'colo(ical I)pacts*abitats. In$aders ay alter habitat by eliinatin! $e!etation or chan!in! (ater 0uality"Parasitesand ,isease.1acteria) $iruses) and parasites introduced (ith e+otic species represent a threat to nati$e or!aniss"Food -ain Alteration. The *eedin! acti$ity o* e+otics can alter the a$ailability o* *ood resources *or nati$e species"Loss o. ende)ic species. Copetition *or *ood and2or space ay result in the eliination o* related species occupyin! the sae niche" Predation on a nati$e species by e+otics is also a proble"*ybridi/ation. E+otic species ay be reproduce (ith nati$e populations) resultin! in hybrids and the ultiate loss o* the nati$e species"Econoic IpactsEconoic ipacts ran!e *ro the cost o* cheical control a!ents to direct econoic losses" The daa!es caused by 3ebra ussels co$erin! industrial and doestic pipelines) sailin! $essels) bouys) 4shin! !ear) trap nets) and pound nets) is thou!ht to ha$e totaled at least 5166 illion since its introduction in 1789"'0AMPL'S OF '0OTI SP'I'S IN T*' P*ILIPPIN'S&iver &ed (u):Eucalyptus camaldulensis;,ost o* unidenti4ed terite speciesA)erican coc%roac- :Periplaneta americana;