Pasarile de prada sunt rapitoare innascute — talentul si indarjirea lor le fac campionii necontestati ai lumii pasarilor. Stapanii aerului,inzestrati cu o acuitate vizuala deosebita,isi captureaza si devoreaza victimele cu ajutorul ghearelor indoite si al pliscurilor incovoiate. Atributul de pasare rapitoare sau pasare de prada se utilizeaza de obicei pentru desemnarea pasarilor din familia numita Falconiformes sau rapitoare de zi.
Acest ordin mare si ramificat cuprinde circa trei sute de specii, printre care diversi vulturi,ulii,ereti si soimi. Caracterul lor de rapitoare se poate observa la prima vedere,desi la alte specii carnivore acesta nu este intotdeauna atat de evident.
Lupii de mare si familia sfranciocilor desi nu sunt rapitoare de temut, nu fac parte din categoria rapitoarelor de zi. Nici bufnita nu este in aceasta categorie,desi acuitatea vizuala si ascutimea ghearelor nu sunt mai prejos decat ale vulturilor. Desi rapitoarele de zi nu se pot defini complet pe baza unei singure caracteristici, totusi putem afirma ca in general aceste pasari sunt carnivore si ca in meniul lor figureaza o varietate mare de vietati,incepand de la insecte si reptile,pana la pasari si mamifere.
Cu modul lor de viata carnivor,ele sunt ajutate de pliscul lor incovoiat si puternic cu ajutorul caruia sfarama prada. Majoritatea rapitoarelor de zi isi prind si isi omoara singure prada. In contrast cu alte pasari rapitoare,transporta prada cu picioarele terminate in gheare incovoiate,nu cu pliscul. Exceptie fac hoitarii,care s-au specializat in consumul de cadavre. Din modul de hranire rezulta si faptul ca picioarele lor nu sunt deosebit de puternice si se termina in multe cazuri cu gheare tesite.
Rapitoarele de zi — fie ca vaneaza animale vii,fie consuma cadavre — isi desfasoara activitatea ziua. Exista specii,spre exemplu vindereul de seara,care vaneaza in amurg,dar nici una nu este activa in timpul noptii.
Din aceasta cauza ele se numesc rapitoare de zi,in contrast cu bufnitele care duc o viata de noapte. Specia rapitoarelor de zi este una dintre cele mai raspandite de pe glob : reprezentantii sai se gasesc pe toate continentele,cu exceptia Antarcticii. Speciile lor s-au adaptat la cele mai diferite forme de viata,incepand din varful muntilor si jungle,pana la mlastini si tundre. Multe specii din ordinul rapitoarelor de zi isi petrec iarna si vara in locuri diferiteUnele calatoresc ca sa evite vicisitudinile climaterice,altele ca sa exploateze oportunitatile sezoniere in materie de alimentatie.
Speciile care se hranesc cu insecte vara migreaza in nord deoarece acolo insectele apar in numar mai mare atunci. Odata cu apropierea iernii insectele incep sa dispara si pasarile sunt nevoite sa porneasca spre sud. Rapitoarele de zi care vaneaza alte pasari urmaresc traseul prazii de-a lungul anului.
Soimul Eleonora,spre exemplu,isi intarzie perioada de imperechere pentru ca puii sa iasa in perioada in care cintezoiul traverseaza in numar mare patria ei mediteraneana. Datorita temporizarii corespunzatoare,soimii dezvoltati pot strange usor cantitati suficiente de hrana pentru alimentatia proprie si a puilor. Alte specii,printre care soimul calator,nu calatoresc departe.
Uneori fac un drum de doar cativa kilometri de la cuibul din munti pana la locul de iernat de pe tarmul marii. In timpul migrarii rapitoarele de zi se straduiesc sa-si aleaga drumul astfel incat sa nu fie nevoite sa zboare mult deasupra marii deoarece s-au specializat pentru zborul planat su nu au putere suficienta pentru zboruri.Account Options Sign in.
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Carlos Gonzalez - Copilul meu nu mananca! Ghidul Familiei - Somnul copiilor. Pasari de prada?
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Dinastiei Sunderland-Beauclair?. Aparitia pe piata sub diverse titluri a creat confuzie, iar cititorul face greu diferenta intre? Idolii de aur? Dinastiei Sunderland-Beauclair? Pasari de prada?. Ca in multe dintre cartile lui, Vintila Corbul descrie lumea in care a copilarit si care l-a fascinat dintotdeauna. Au fost vremuri fericite, cand a calatorit foarte mult in Europa si America, i-a vizitat pe John D.
Rockefeller, J. Paul Getty, si a cunoscut indeaproape lumea miliardarilor. De asemenea, frecventeaza cercurile lumii bune si ale vedetelor de cinema ale acelor vremuri, si multe dintre personajele pe care le-a conturat in paginile cartilor lui sunt inspirate de celebritatile pe le-a cunoscut. Dupa cum declara insusi autorul:? Am scris ce am trait, ce am vazut?. Oferte speciale. Istoria lumii 19,99RON. Colectii Adevarul. Autori cartile Adevarul. Pasari de prada vol 1, 2, 3 Vintila Corbul.How would OPEC react to the U.
Next PostOilfield Services To See Spending Surge In 2017 Tsvetana is a writer for the U. How many would be needed to be added back to increase production commensurate with OPEC cuts.
How much capex would it take reactivate over 1000 rigs. Can the shale producers really increase production to an extent to obviate the OPEC cut when LESS capex is being spent.
How long will it take to gets those new rigs up and running and producing. Phil Currie on December 23 2016 said: Craig Ferrell is correct. One more thing to add to his comments. Where will all the people come from to run these rigs to bring back this oil production. Many have left the industry, some will flock back, but not all. I do not see the rig count in the US going over 1000 for a very long time, if ever again. The pundit class never seems to be interested in talking about how accurate they have been, and that's not aimed at you personally Ms.
Craig Ferrell on December 23 2016 said: Thanks Phil. Couldn't fit in previous comment field the aspect of financing.
Banks review borrowing base twice a year, and cut back last fall based on lower prices. By the time they re-evaluate in spring with higher bases and presumably more ability to spend on capex, the 1st round of OPEC cuts will already be in the books. It will take a bit longer than assumed, and thus higher oil prices. James kaiser on December 23 2016 said: I agree with Craig and Phil.
The big thing Oil Shale requires is CAPEX. You have to spend big money to make big money. They either have to make the money or borrow it. They can't produce enough to drill, and banks aren't going to lend them money OR they're already extended their credit to the limit. Also, companies are inherently conservative.
The industry might be short sited at times, but it's still runs to make a profit, and until there's enough revenue and cash flow coming back OUT of oil shales, banks and company executives will hesitate to or won't be able to spend like it's 2014. As in the past the abusers will go all the way. Alex on December 29 2016 said: I would not rely too much on rig count considering new technology of horizontal drilling. Plus, there are a lot of wells that have been drilled, and now require frac jobs with lower than drilling costs.
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Fall To 15-year Lows Find us on: Oil Imports From Mexico Soar After Hurricane Season U. By Tsvetana Paraskova for Oilprice. Next Post Oilfield Services To See Spending Surge In 2017 Tsvetana Paraskova Tsvetana is a writer for the U. Merchant of Record: A Media Solutions trading as Oilprice. Yesterday, insurers, small businesses and charity groups called on the Government to scrap the increase.I could not have asked for a more amazing experience. David, United States Pearls of the South and West, July 2016 We had a very enjoyable time in Iceland.
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New York got blown out by the previously winless 49ers last week, and it appears the remaining games on the schedule will be the last under Ben McAdoo. Chiefs 30, Giants 13The Patriots look downright unbeatable of late, but the Raiders have had an extra week to prepare for the contest in Mexico City thanks to their bye. While New England has shored up its pass defense, they're still able to be picked apart in the right scheme.
Look for Derek Carr to find Amari Cooper and Michael Crabtree early and often, and the Raiders to ride out of Mexico City with a massive win. Raiders 30, Patriots 28It's going to be windy and cold Sunday in Chicago and the Lions have the league's fourth-worst rushing offense.
Look for a low-scoring affair in which the Bears' rushing attack will thrive. Bears 20, Lions 17A team with Blake Bortles as quarterback is favored on the road by more than a touchdown. The Browns are bad, but this is too many points.
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Jaguars 24, Browns 20Thanks to the bye, the Ravens have had two weeks to prepare for a Brett Hundley-led offense. That doesn't bode well for the Packers. Ravens 24, Packers 17Taking Ryan Fitzpatrick on the road may not be sage betting advice regularly, but the Dolphins look to be a complete disaster.
Buccaneers 23, Dolphins 14Shockingly, the best game of the week is between the Jared Goff-led Rams and the Case Keenum-led Vikings. The aggressive Minnesota secondary will be a big test for Los Angeles, and the home team will make enough stops to get the win. Vikings 27, Rams 21The Saints ran wild on the Bills last week and there's no reason to think they won't do the same against Washington.
Even if the run game struggles, Drew Brees at home seems like a fairly sound backup plan. Saints 31, Redskins 20It could very well be Blaine Gabbert against Tom Savage on Sunday in Houston. The best bet to make on this game is that it will be terrible, but since we have to pick a side, let's go with Arizona.
Cardinals 17, Texans 13It seems unfathomable with the talent the Broncos have on defense, but Denver has lost five straight games, all coming by at least 10 points. That said, the Bengals aren't exactly setting the league on fire of late either.
Broncos 20, Bengals 17The Cowboys will be without Ezekiel Elliott and Tyron Smith yet again, something the Falcons heavily exploited last week. There's no reason to think the Eagles won't be able to as well. Eagles 28, Cowboys 20The Seahawks vaunted defense will definitely be missing Richard Sherman and will likely be without Kam Chancellor.
Earl Thomas is scheduled to play but won't be 100 percent.