Bøger af Elsa Ribeiro

Pchel wida Apis mellifera mozhno wstretit' pochti powsüdu w mire. Iz-za togo, chto oni rasseqny w razlichnyh mestah obitaniq, wozniklo neskol'ko podwidow ili ras. Zapadnye medonosnye pchely imeüt gaplo-diploidnoe opredelenie pola: neoplodotworennye qjca razwiwaütsq w trutnej, a oplodotworennye qjca - w samok, prichem reproduktiwnoj sposobnost'ü obladaüt tol'ko pchelinye matki. Vse pchely prohodqt polnyj metamorfoz, i prodolzhitel'nost' zhiznennogo cikla zawisit ot razwiwaüschejsq pchely (rabochij, truten' ili korolewa). Ih telo razdeleno na tri chasti: golowa, grudnaq kletka i brüshko. Vse pchely wypolnqüt opredelennye funkcii, zhiwq w chrezwychajno organizowannom obschestwe, chtoby ukrywat' korolewu i hranit' poluchennye produkty: med, matochnoe molochko, propolis, pyl'cu, qd i wosk. Pomimo äkonomicheskoj cennosti ätih produktow, opylenie zawisit ot ätih nasekomyh i obespechiwaet neprerywnost' widow rastenij i sel'skohozqjstwennyh kul'tur. Esli ne ostanowit' ischeznowenie pchel, äkonomika pridet w upadok, a äkosistemy ponesut besprecedentnye poteri. Rastuschaq poterq pchelinyh kolonij mozhet byt' swqzana s razlichnymi abioticheskimi i bioticheskimi faktorami.

Bees of the species Apis mellifera can be found almost everywhere on the globe. Because they are dispersed in different habitats, several subspecies or races have originated. Western honey bees have haplo-diploid sex determination: unfertilized eggs develop into drones and fertilized eggs develop into females, where only queen bees have reproductive capacity. All bees undergo complete metamorphosis and the length of the life cycle depends on the emerging bee (worker, drone or queen). Their body is divided into three parts: head, thorax and abdomen. All bees have specific functions, living in an extremely organized society to shelter the queen and store the products derived: honey, royal jelly, propolis, pollen, venom and wax. Besides the economic value of these products, pollination depends on these insects and allows the continuity of plant species and agricultural crops. If the disappearance of bees is not curtailed, the economy will decline and ecosystems will suffer unprecedented losses. The increasing loss of bee colonies can be attributed to different abiotic and biotic factors.