A Gem of an Island

The Colorful Blur yaOctober
Chikamu chechipiri: Gem yeChitsuwa

naMark J. Spalding

Tevere, ndakaenda kuBlock Island, Rhode Island, iyo iri anenge mamaira 13 (kana kuti kukwira chikepe kweawa) kubva kuPoint Judith. Ndakaita rombo rakanaka rekuhwina raffle kuti ndibatsire Rhode Island Natural History Survey—iyo yakandipa vhiki paRedgate Farm paBlock Island pedyo neNew Harbor. Vhiki rinotevera Columbus Day zvinoreva kudonha kamwe kamwe mumhomho uye chitsuwa chakanaka chinongoerekana chave nerunyararo zvakare. Nekuda kwekuedza kwakabatana kweBlock Island Conservancy, mamwe masangano, uye mhuri dzakazvitsaurira dzeBlock Island, nzvimbo zhinji yechitsuwa ichi yakachengetedzwa uye inopa mafambiro anoshamisa munzvimbo dzakasiyana dzezvitsuwa.  

Tinotenda kune vatinotambira, Ocean View Foundation's Kim Gaffett uye Survey's Kira Stillwell, takava nemimwe mikana yekushanyira nzvimbo dzakachengetedzwa. Kugara pachitsuwa kunoreva kuti iwe unonyanya kuenderana nemhepo - kunyanya mukudonha, uye, kana ari Kim naKira, kunyanya panguva yekutama kweshiri. Mukudonha, mhepo yekuchamhembe imhepo yemuswe yeshiri dzinotama, uye zvinoreva mikana yekutsvakurudza.

Zuva redu rekutanga rakazara, takaita rombo rakanaka kuvepo apo masayendisiti kubva ku Biodiversity Research Institute vaiita kudonha kwavo kwema raptors. Chirongwa ichi chiri mugore rayo rechina uye chiri pakati pevabatsiri vayo Ocean View Foundation, Bailey Wildlife Foundation, The Nature Conservancy, uye University of Rhode Island. Pamusoro pechikomo chinotonhorera nechokumaodzanyemba kwechitsuwa chacho, boka reBRI rakanga richitora mhatsa dzakawanda—uye takasvika ari masikati akanaka zvikuru. Iyo purojekiti inotarisa pamafambiro ekufambisa kweperegrine falcon uye huturu hwehupfu hwema raptors mudunhu. Shiri dzataiona dzaiyerwa, kuyerwa, kusungwa, uye kusunungurwa. Ndakava nerombo rakanaka rekubatsira nekuburitswa kwechikadzi chechidiki chekuchamhembe harrier (aka marsh hawk), nguva pfupi Kim atora mukana wake nemukomana wechidiki wekuchamhembe kweharrier.  

Masayendisiti anga achishandisa raptors semabarometers eecosystem hutano kwemakumi emakore. Kugoverwa kwavo uye kuwanda kwakanyatsobatanidzwa kune webhu yezvokudya zvinovatsigira. Chris DeSorbo, director wechirongwa, anoti "Block Island raptor chiteshi chekutsvagisa ndiyo kuchamhembe uye kure kure kumahombekombe pamhenderekedzo yeAtlantic. Hunhu uhwu pamwe chete nemafambiro akasiyana-siyana ekufambisa kwevapfuri uko kunoita kuti chitsuwa ichi chikoshese pakutsvagisa uye nekutarisa kugona kwacho.” Nzvimbo yekutsvagurudza yeBlock Island yakapa nzwisiso inokosha umo maraptor ari kutakura mecury mutoro mukuru, semuenzaniso, uye nezvekusvika kwaanoita. migrate.
Maperegrine ane tagged akarondwa kusvika kuGreenland neEurope—achiyambuka makungwa makuru munzendo dzawo. Kufanana nemhando dzegungwa dzinotama dzakaita semawhale netuna, zvakakosha kuziva kana vanhu vakasiyana kana kuti shiri imwe chete inogona kuverengerwa munzvimbo mbiri dzakasiyana. Kuziva kunobatsira kuona kuti kana taziva kuwanda kwemhuka, tinoverenga kamwe chete, kwete kaviri—uye tinokwanisa kuverenga nhamba diki.  

Iyi chiteshi chidiki chemwaka we raptor inovhura hwindo mukubatana pakati pemhepo, gungwa, nyika, uye denga-uye mhuka dzinotama dzinovimba nemafungu anofanotaurwa, chikafu, uye zvimwe zvinhu kutsigira kutenderera kwehupenyu hwadzo. Tinoziva kuti mamwe ma raptors paBlock Island achange aripo munguva yechando, uye vamwe vachange vafamba zviuru zvemakiromita kumaodzanyemba uye kudzoka zvakare, sekudzoka kwevanhu vanodzoka mumwaka wezhizha unotevera. Tinogona kutarisira kuti kudonha kunotevera boka reBRI nevamwe vavo vachakwanisa kudzoka kuti vaenderere mberi nekuongorora kwavo mercury load, kuwanda, uye hutano hwemhando sere kana kupfuura dze raptors dzinotsamira pane iyi nzira.  

Mufananidzo 1: Block Island, Mufananidzo 2: Kuyerwa kwerukova rwemvura