Gem na Tsibirin

Launi mai launi na Oktoba
Kashi na 2: Gem na Tsibiri

by Mark J. Spalding

Bayan haka, na yi tafiya zuwa tsibirin Block, tsibirin Rhode, wanda ke da nisan mil 13 na ruwa (ko jirgin ruwa na sa’a guda) daga Point Judith. Na yi sa'a don cin nasarar raffle don amfana da Binciken Tarihin Halitta na Rhode Island-wanda ya ba ni mako guda a Redgate Farm a kan Tsibirin Block kusa da New Harbor. Makon da ke bayan Columbus Day yana nufin raguwa kwatsam a cikin taron kuma kyakkyawan tsibirin yana da kwanciyar hankali ba zato ba tsammani. Godiya ga ƙoƙarin haɗin gwiwar Block Island Conservancy, wasu kungiyoyi, da iyalai na Block Island, yawancin tsibirin ana kiyaye su kuma suna ba da tafiye-tafiye masu ban sha'awa a wurare daban-daban na tsibiri.  

Godiya ga masu masaukinmu, Kim Gaffett na Ocean View Foundation da Kira Stillwell na Bincike, mun sami ƙarin damar ziyartar wuraren da aka karewa. Rayuwa a tsibiri yana nufin cewa kuna dacewa da iska musamman a cikin bazara, kuma, a cikin yanayin Kim da Kira, musamman a lokacin ƙauran tsuntsaye. A cikin kaka, iskar arewa iskar wutsiya ce ga tsuntsaye masu ƙaura, kuma hakan yana nufin damar yin bincike.

Cikakken ranarmu ta farko, mun yi sa'a don kasancewa a can lokacin da masana kimiyya daga Cibiyar Nazarin Halittu sun yi tagging na raptors. Shirin yana cikin shekara ta huɗu kuma yana ƙidaya a tsakanin abokan hulɗar Ocean View Foundation, Bailey Wildlife Foundation, The Nature Conservancy, da Jami'ar Rhode Island. A kan wani tsaunin da ke da iska mai sanyi a kudancin tsibirin, tawagar BRI ta kama ɗimbin ƴan ta'adda-kuma mun iso da yammacin rana. Aikin ya mayar da hankali ne kan tsarin ƙaura na falcons peregrine da kuma nauyin masu guba na raptors a yankin. Tsuntsayen da muke kallo an auna su, an auna su, an ɗaure su, aka sake su. Na yi babban arziki don taimakawa wajen sakin wata matashiyar mace 'yar arewa harrier (wanda ake kira marsh hawk), jim kadan bayan Kim ya dauki nauyinta tare da wani matashin arewa harrier.  

Masana kimiyya sun yi amfani da raptors a matsayin barometers na lafiyar muhalli shekaru da yawa. Rarraba su da yalwar su yana da alaƙa da gidajen yanar gizon abinci waɗanda ke tallafa musu. Chris DeSorbo, darektan shirin, ya ce "Tashar binciken raptor na Block Island ita ce arewa mafi nisa kuma mafi nisa a bakin tekun Atlantic. Waɗannan halayen haɗe da ƙaura na musamman na raptors a can sun sa wannan tsibiri mai daraja don bincike da kuma sa ido kan yuwuwar sa.” Tashar bincike ta Block Island ta ba da haske mai mahimmanci game da abin da raptors ke ɗaukar nauyin mercury mafi girma, alal misali, kuma game da nisan su. ƙaura.
An bi diddigin abubuwan da aka yiwa alama har zuwa Greenland da Turai — suna ketare manyan tekuna a cikin tafiye-tafiyensu. Kamar nau'in teku masu ƙaura kamar su whales da tuna, yana da mahimmanci a san ko yawan jama'a sun bambanta ko kuma za a iya ƙidaya tsuntsu ɗaya a wurare biyu daban-daban. Sanin yana taimakawa tabbatar da cewa lokacin da muka ƙayyade yawan nau'in nau'in, muna ƙidaya sau ɗaya, ba sau biyu ba - kuma muna gudanar da ƙarami.  

Wannan ƙaramin tashar raptor na yanayi yana buɗe taga cikin haɗin kai tsakanin iska, teku, ƙasa, da sama-da kuma dabbobi masu ƙaura waɗanda suka dogara da igiyoyin ruwa da ake iya tsinkaya, wadatar abinci, da sauran abubuwan don tallafawa tsarin rayuwarsu. Mun san cewa wasu daga cikin raptors a kan Block Island za su kasance a wurin ta cikin hunturu, wasu kuma za su yi tafiya dubban mil kudu da sake dawowa, kamar yadda baƙi na ɗan adam suka dawo lokacin rani na gaba. Muna iya fatan faɗuwar gaba ƙungiyar BRI da abokan aikinsu za su iya komawa don ci gaba da kimanta nauyin mercury, da yawa, da lafiyar nau'in raptors takwas ko fiye da suka dogara da wannan hanya.  

Hoto 1: Tsibirin Block, Hoto 2: Aunawar shaho