The value of pollinator species diversity

Experiments rarely reviewed by human subjects in 1991 showed that 8 brave adventurers had 3,000 animals and plants and several habitats including coral reefs and tropical rainforests and a sealed structure (biosphere 2 ). , Mangroves, wetlands However, most vertebrates and all pollinators are extinct, but ants and ticks are doubling. Carbon dioxide concentration fluctuates abruptly and oxygen concentration decreases (1). The result emphasizes the fact that we know little knowledge about the knowledge necessary to maintain the life support system of the planet. This issue, page 791, Winfree et al. (2) An important aspect to investigate this question: How many pollinators are needed to ensure crop pollination?

Pollinators are involved in the sexual reproduction of many plants by guaranteeing cross-pollination which is essential for a particular species, or by ensuring the genetic diversity of other species. Since plants are the main food source of animals, attention has also been drawn to the reduction or even possible disappearance of one of the main pollinators, and the protection of pollinators is biodiversity conservation It is a part of efforts. The decrease in the number of bees widely causes general attention. Members of the UK Housekeeper Association issued a number of warnings that the bees in this country are declining rapidly in the 21st century. In 2006, Elizabeth Grossman wrote in the winter that in Europe and the USA the loss of beehive badows in winter is increasing, and the failure rate of the hive is as high as 50%.

More and more pollen vector species worldwide are faced with extinction of various pressures, many of which are artificial and threaten millions of livelihoods and hundreds of billions of dollar food supplies . Dr. Vera Lucia Imperatriz-Fonseca, senior professor at the University of Sao Paulo, says: "Their health is directly related to our own happiness." "Without a pollinator, we can not enjoy coffee, chocolate, apples, and many other foods in our daily life," School biodiversity and ecosystem. Dr. Simon Potts of the service professor said. Agricultural policy development department, University of Reading UK. More than three quarters of the world's food crops depend on pollination of insects and other animals, at least in part.

When people think about pollinators, they often think about bees. However, many different animals, including other insects (other bee species, butterflies, beetles, flies), several birds and several bats are pollinators. In fact, an estimated 300,000 flowering plants around the world need animal pollinators. This very diverse flower supports diverse pollinators, most of which are insects. For example, there are only about 1,000 pollinators of vertebrates, but it is estimated that there are at least 16,000 different bee species in the world.