Showing posts with label Biodiversity. Show all posts
Showing posts with label Biodiversity. Show all posts
undefined 201

#154 Summary Biodiversity and conservation

1 All living organisms may be classified into one of the five kingdoms: prokaryotes, protoctists, fungi, plants and animals.2 Biodiversity includes the range of habitats (environments) and species in an area, and the genetic diversity within a species.3 There are moral and ethical reasons for maintaining biodiversity,...
undefined 201

#153 International conservation and restoring degraded habitats

Non-governmental organisations, such as the World Wide Fund for Nature (WWF) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), play important roles in local and global conservation.An important part of conservation is restoring degraded habitats so that they may support a...
undefined 201

#152 Controlling alien species

Alien or invasive species are those that have moved from one ecosystem to another where they were previously unknown.Causes:humans trading animals and plantsintroduced as biological control agents to control pestsescapeesanimals introduced for sportEffects:become successful predatorscompete effectively with native organisms...
undefined 201

#151 Assisted reproduction and problems of successful conservation

Assisted reproduction is a solution to the problem of inbreeding.Assisted reproductionSperm bank - freezing collected semenSperm samples are collected from males, checked for sperm activity and then diluted with a medium containing a buffer solution and albumen. Small volumes of semen are put into straws (thin tubes) and...
undefined 201

#150 Protecting endangered species

An endangered species is one that is threatened with extinction. The best way to conserve any species is to keep it in its natural habitat.National parks - conservation areas with strict limits to protect wildlife and the environmentalien animal species are removed; invasive plants are dug up and destroyedrestriction on...