Зубры, снежные барсы, амурские тигр

Зубры, снежные барсы, амурские тигры, моржи и многие другие виды животных находятся под угрозой исчезновения. Причины исчезновения разные, но в подавляющем большинстве источником является человеческая деятельность. Во первых, основной причиной исчезновения является браконьерство. Люди убиваю все больше и больше животных из-за дорого меха. Во-вторых из-за освоения новых земель, люди вырубают леса, что сокращает число парнокопытных, а они являются пищей для таких хищников, как амурские тигры. Освоение морского шельфа влечет за собой уменьшение ледяного покрова. Это лишает белых медведей и моржей привычной среды обитания, а вместе с ней и пищи. Интродукция (акклиматизация) чуждых видов также приводит к сокращению численности и исчезновению видов животных. Часто местные виды из-за вторжения «пришельцев» находятся на грани исчезновения. Известны примеры негативного влияния американской норки на европейскую норку, канадского бобра на европейского, ондатры на выхухоль. Однако считается возможным введение новых видов в обедненные антропогенные экосистемы для их сбалансирования. Вполне допустима, например, интродукция растительноядных рыб — толстолобика, белого амура — в искусственные каналы, где они препятствуют их зарастанию.
Другие причины снижения численности и исчезновения видов животных: прямое уничтожение для защиты сельскохозяйственной продукции и промысловых объектов (хищные птицы, суслики, ластоногие, койоты и др.); случайное (непреднамеренное)уничтожение (на автомобильных дорогах, в ходе военных действий, при кошении трав, на линиях электропередач, при зарегулировании водного стока и т.д.); загрязнение среды пестицидами, нефтью и нефтепродуктами, атмосферными загрязнителями, свинцом и другими токсикантами.

Результаты (английский) 1:

Bison, snow leopards, Siberian Tigers, polar bears and many other species of animals are threatened with extinction. Causes of extinction are different, but in the vast majority of the source is human activity. Firstly, the main cause of the disappearance is poaching. People are killing more and more animals because of expensive fur. Secondly due to development of new lands, people cut down forests, that reduces the number of cloven-hoofed animals, and they are food for predators such as Siberian Tigers. Harnessing offshore entails a reduction of the ice cover. This deprives the polar bears and walrus familiar Habitat, and food. Introduction (acclimatization) alien species also leads to a reduction in the number and species of animals. Often local species due to invasion by "aliens" are on the verge of extinction. Examples of the negative impact of American mink on the European Mink, Canadian beaver for European, muskrats on desman. It is however considered possible the introduction of new species in anthropogenic ecosystems for their depleted balance. Legitimate, for example, introduction of herbivorous fish-carp, white Amur — in artificial channels, where they let their occlusion.Other reasons for the decline and extinction of animal species: direct destruction to protect agricultural and fishing sites (birds of prey, Gophers, pinnipeds, coyotes, etc.); random (unintentional) destruction (on highways, in the course of hostilities, when mowing grass on power lines, with zaregulirovanii water discharge, etc.); pollution by pesticides, petroleum and petroleum products, atmospheric pollutants, lead and other toxicants.

Результаты (английский) 2:

Bison, snow leopards, Siberian tigers, walruses and many other animal species are threatened with extinction. The reasons for the disappearance is different, but the vast majority of the source is human activity. Firstly, the main cause of the disappearance is poaching. People are killing more and more animals because of the expensive fur. Secondly because of the development of new lands, people cut down forests, which reduces the number of cloven-hoofed animals, and they are food for predators such as the Amur tiger. Development of sea shelf entails a reduction of the ice cover. This deprives the polar bears and walruses usual habitat, and with it the food. The introduction (acclimatization) of alien species also leads to a reduction in the number and species of animals. Most native species because of the invasion "Aliens" are on the verge of extinction. There are examples of the negative impact of the American mink on the European mink, the Canadian beaver in the European, on the muskrat muskrat. However it is considered possible to introduce new species to the impoverished anthropogenic ecosystems for their balance. It is permissible, for example, the introduction of herbivorous fish - carp, grass carp - in the artificial canals, where they interfere with their overgrowing.
Other causes of decline in the number and species of animals: direct destruction to protect agricultural products and commercial species (birds of prey, marmots, pinnipeds, coyotes et al.); accidental (unintentional) destruction (on the roads, in the course of military operations, mowing grass, power lines, with the over-regulation of water flow, etc.); pollution by pesticides, petroleum and petroleum products, air pollutants, lead and other toxicants.

Результаты (английский) 3:

зубры, snow leopards, amur tigers, walruses, and many other species of animals are in danger of extinction. the causes of the disappearance of different, but in the vast majority of source is human activity.first of all, the main reason for the disappearance is poaching. people are killing more and more animals because of the expensive fur. secondly, because of the development of new land, the people clear the forestthat reduces the number of studs, and they are food for predators such as amur tigers. development of marine shelf entails a reduction in ice cover.this deprives the polar bears and walruses familiar environment, and with it the food. the introduction of (after) alien species also leads to the decline and disappearance of species.often local species because of the invasion of "пришельцев» are on the verge of extinction. examples of the negative impact of american mink on the european mink, muskrats in the european canadian beaver, muskrat.however, the introduction of new species is possible in the depleted man-made ecosystems for their balance. it is possible, for example, the introduction of растительноядных fish - fish --.the white amur in artificial channels, where they inhibit their зарастанию. other reasons for reducing size and species of animals:direct destruction to protect agricultural and fishing facilities (birds of prey, gophers, pinniped, coyotes, etc.); random (unintentional) destruction (roadduring the war, with the кошении herbs on transmission lines, in зарегулировании water runoff, etc.); pollution of pesticides, oil and oil products, atmospheric pollutantslead and other токсикантами.