Macaronesia, Madeira, Arbacia lixula, Consumption rates, Food consumption, Gonad index, Invertebrate macro-grazer, Ocean warming, Paracentrotus lividus, Sea urchins, Macaronésia, Macaronésia, Macaronésia, Macaronésia, Macaronésia, Macaronesian, Macaronésia, Macaronesian, Macaronésie, Macaronésia, Macaronesian, Macaronésie, Macaronésia, Macaronesian, Macaroné...