The term 'alpha diversity' refers to
genetic diversity
community and ecosystem diversity
species diversity
diversity among the plants
B.
community and ecosystem diversity
Alpha diversity (-diversity) is the biodiversity within a particular area, community or ecosystem and is usually expressed as the species richness of the area. This can be measured by counting the number of taxa (distinct group of organisms) within the ecosystem (eg, families, genera, species).
Which of the following species is restricted to a specific area?
Sibling species
Allopatric species
Sympatric species
Endemic species
Which one of the following is an exotic carp species?
Barbus stigma
Cyprinus carpio
Labeo bata
Cirrhinus mrigala
Which one of the following is not included under in situ conservation?
National park
Wild life sanctuary
Zoological garden
Biosphere reserve
Which one of the following is not used for ex situ plant conservation?
Field gene banks
Seed banks
Shifting cultivation
Botanical gardens
Which of the following represent maximum number of species among global biodiversity?
Algae
Lichens
Fungi
Mosses and ferns
Match the name of the animal (Column I) with one characteristics (Column II) and the phylum/class (Column III) to which it belongs
Column I | Column II | Column III |
Petromyzon | Ectoparasite | Cyclostomata |
Ichthyophis | Terrestrial | Reptilia |
Limulus | Body covered by chitinous exoskeleton | Pisces |
Adamsia | Radially symmetrical | Porifera |