I-St. Helena plover (Charadrius sanctaehelenae) yaqala ukubalulwa ngo-1638. Abantu bendawo baqamba igama le-plover "birdbird" ngenxa yemilenze yayo emincanyana.
Izimpawu zangaphandle zeplover yaseSanta Helena
UZuek waseSt. Helena unebude obungu-15 cm bomzimba.
Yinyoni enemilenze emide, ebomvu ngokubomvu enomlomo omkhulu futhi omude. Kunezimpawu ezimnyama ekhanda ezingadluleli emuva kwekhanda. Amaphansi angaphansi kwe-buffy. Izinyoni ezincane zinemibala ephaphathekile futhi azinamaki ekhanda. Izimpaphe ezingezansi zilula.
Ukusabalala kweplover yaseSanta Helena
IZuek yaseSaint Helena ayigcini nje ngeSanta Helena, kepha futhi ihlala e-Ascension naseTristan da Cunha (isiqhingi esikhulu).
Indawo yokuhlala ye-plover yaseSanta Helena
USanta Helena Zuek uhlala ezindaweni ezivulekile zaseSaint Helena. Isatshalaliswa kabanzi ekuqothulweni kwamahlathi, ithanda ukuhlanzwa okuvulekile ehlathini. Imvamisa ivela phakathi kwezinkuni ezifile, emathafeni anezikhukhula nasemithanjeni enezinkuni, izindawo eziwugwadule futhi emadlelweni anobuningi obukhulu notshani obomile nobufushane.
Ukukhiqizwa kabusha kweplover yaseSanta Helena
I-plover yaseSanta Helena izala unyaka wonke, kepha ikakhulukazi ngesikhathi sonyaka owomile, oqala ngasekupheleni kukaSepthemba kuya kuJanuwari. Izinsuku zokwakha izidleke zingashintsha ngokuya ngobukhona bezimo ezithandekayo zemvelo, inkathi ende yemvula kanye nesembozo sotshani obuningi kunciphisa ukuzala.
Isidleke siyifossa encane.
Kukhona amaqanda amabili ku-clutch, kwesinye isikhathi i-clutch yokuqala ingalahleka ngenxa yokudliwa. Angaphansi kuka-20% amaphuphu asindayo, yize ukusinda kwabantu abadala kuphezulu. Izinyoni ezisencane ziyashiya isidleke zihlakazeke isiqhingi, zakhe imihlambi emincane.
Abantu basePlover baseSanta Helena
Inani lamapayipi aseSanta Helena lilinganiselwa kubantu abangama-200-220 asebekhulile. Kodwa-ke, idatha esanda kuqoqwa ngo-2008, 2010 nango-2015 ikhombisa ukuthi inani lezinyoni ezingandile liphakeme kakhulu futhi lisuka kuma-373 nangaphezulu kwabantu abangaphezu kuka-400 abavuthiwe.
Lolu lwazi lukhombisa ukuthi kube nokululama okuthile ngezinombolo. Isizathu salokhu kuguquka okubonakalayo asikacaci. Kepha ukwehla okujwayelekile kwabantu ngama-20-29% bekuqhubeka ngokuqhubekayo eminyakeni eyi-16 edlule noma izizukulwane ezintathu.
Ukudla kwe-Saint Helena plover
I-zuek yaseSt. Helena idla izinhlobonhlobo zezilwane ezingenamgogodla. Udla izintwala zezinkuni, amabhungane.
Isimo sokulondolozwa kweplover yaseSanta Helena
UZuek waseSaint Helena ungowezinhlobo ezisengozini yokuqothulwa. Inani lezinyoni lincane ngokwedlulele futhi lincipha kancane kancane ngenxa yokushintsha kokusetshenziswa komhlaba nokuncipha kwezindawo zamadlelo. Ngenxa yokwanda kwengcindezi ye-anthropogenic ngenxa yokwakhiwa kwesikhumulo sezindiza, ukwehla okuqhubekayo kwenani lezinyoni ezingandile kufanele kulindelwe.
Usongo olukhulu kulezi zinhlobo lumelelwa amakati, amagundane adla amatshwele namaqanda.
I-zuek yaseSanta Helena ihlukaniswa njengengcuphe.
Amaphrojekthi njengamanje ayaqhubeka ukulawula izinombolo zezinyoni nokuzama ukunqanda ukwehla.
Izizathu zokwehla kwenani lama-plovers Saint Helena
ISt Helena Zuek ukuphela kwezinhlobo zezinyoni zasendle ezitholakalayo eSt Helena (UK). Ukudla kwemfuyo sekuyinto engenzi nzuzo endaweni eningi, okuholele kuzinguquko ezinkulu kudoti. Ukukhula kweSod ngenxa yokuncipha kokudla kwemfuyo (izimvu nezimbuzi) kanye nokwehla komhlaba olimekayo kungaholela ekwehleni kwekhwalithi yokuphakelwa nokwakhiwa kwezidleke kwezinye izindawo.
Ukudliwa yisizathu esikhulu esenza izinyoni zenqabe ukwakha isidleke. Besebenzisa izinzwa ekulandeleni ukuhamba kwezilwane namakhamera we-infrared, ochwepheshe bathole ukuthi ezidlekeni eziphazanyiswa yizilwane ezizingelayo, izinga lokusinda kwenzalo lisendaweni esukela ku-6 kuye ku-47%.
Ukusetshenziswa kwezokungcebeleka okwandisiwe ezindaweni ezingama-semi-desert kungaholela ekubhujisweni nasekubhujisweni kwezidleke.
Ukwakhiwa kwezindlu kuthatha inkatho entsha. Kukhona ukungaqiniseki okuphawulekayo mayelana nenani lezimoto kanye nokwenyuka okulindelekile kwabavakashi. Isikhumulo sezindiza esakhiwe sikhuthaza ukwakhiwa kwezindlu ezengeziwe, imigwaqo, amahhotela kanye nezinkundla zegalofu, okwandisa umthelela omubi ezinhlotsheni ezingavamile zezinyoni. Ngakho-ke, umsebenzi uyaqhubeka wokwakha izindawo zokufaka izidleke ezifanelekile emadlelweni omile, kucatshangwa ukuthi ukuqaliswa kwalo mklamo kuzoholela ekwandeni kwenani lamaphayiphu.
Izinyathelo Zokulondolozwa kwe-Saint Helena Plover
Zonke izinhlobo zezinyoni eSaint Helena zivikelwe umthetho kusukela ngo-1894. KuneNational Trust (SHNT) ngeSanta Helena, eqondisa imisebenzi yezinhlangano zomphakathi zemvelo, eqhuba ukuqapha nokucwaninga ngezemvelo, ibuyise izindawo zokuhlala futhi isebenze nomphakathi. Ngaphezulu kwamahektha ayi-150 amadlelo abelwe lezi zinhlobo ukuba zihlale kuzo. Kwenziwa ukubanjwa kwamakati endle azingela ama-plover.
IRoyal Society Yezokuvikelwa Kwezinyoni, uMnyango Wezolimo kanye Nemithombo Yemvelo kanye ne-SHNT njengamanje basebenzisa iphrojekthi yokwehlisa umthelela we-anthropogenic ku-Saint Helena plover. Uhlelo lokusebenza, olusungulwe kusukela ngoJanuwari 2008, lwenzelwe iminyaka eyishumi nezinyathelo zokwandisa inani lama-plover nokwakha izimo ezizinzile zokukhiqiza izinyoni.
Esikoleni esiphothule eNyuvesi yaseBath, izazi zebhayoloji zisebenza ukuvimbela izilwane ezidla ezinye ukuthi zingadli amaqanda e-plover.
Imiphumela yalokhu kuhlolwa ikhombise ukuthi amaqanda esidlekeni nasemantshontsho avame ukufa hhayi kakhulu ezilwaneni ezidla ezinye, kodwa ikakhulukazi ezimweni ezingezinhle zemvelo. Ukufa okuphezulu kuyabonakala nasezinyonini ezindala. Izindlela zokonga i-Saint Helena plover zibandakanya ukuqapha njalo kwenala.
Ukugcina amadlelo nokubuka izinhlobo zezilwane ezifakiwe. Ukulandelela izinguquko endaweni yokuhlala. Ikhawulela ukufinyelela kwezokuthutha ezindaweni ezingama-semi-desert lapho kuhlala khona izinhlobo ezingavamile. Nikeza izindlela zokunciphisa ekwakhiweni kwesikhumulo sezindiza ethafeni lezikhukhula. Bheka amakati namagundane endawo ezungeze izindawo ezaziwayo zezinyoni. Qapha ngokucophelela ukwakhiwa kwesikhumulo sezindiza kanye nengqalasizinda yezivakashi ezingalimaza indawo yokuhlala ye-plover yaseSanta Helena.
