Question and answer
How do invasive species change the diversity index?
Invasive species, also called invasive exotics or simply exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions. [ Biotic invasion is considered one of the five top drivers for global biodiversity loss and is increasing because of tourism and globalization.[citation
needed] This may be particularly true in inadequately regulated fresh water systems, though quarantines and ballast water rules have improved the situation.[51] Invasive species may drive local native species to extinction via competitive exclusion, niche displacement, or hybridisation with related native species. Therefore, besides their economic ramifications, alien invasions may result in extensive changes in the structure, composition and global distribution of the biota of sites of introduction, leading ultimately to the homogenisation of the world’s fauna and flora and the loss of biodiversity.[52] Nevertheless, it is difficult to unequivocally attribute extinctions to a species invasion, and the few scientific studies that have done so have been with animal taxa. Concern over the impacts of invasive species on biodiversity must therefore consider the actual evidence (either ecological or economic), in relation to the potential risk ]
Expert answered|uxiali|Points 698|
Question
Asked 10/2/2012 5:44:37 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
what do you think would happen to a habitat if the plant diversity declines?
Weegy: Habitat would be affected because the living organisms rely on plants for their food. If some of these plants are no longer available, it could mean a significant decline in their number for that particular habitat. (More)
Question
Expert Answered
Asked 10/2/2012 5:28:28 PM
0 Answers/Comments
Am i cute
Weegy: Everyone is beautiful in their own way! User: i have braces and glasses and freckels an a giant mole on my right and left cheek am i the most beautiful girl in the world Weegy: Beauty is subjective and fleeting. Braces will be gone, glasses are actractive. Who cares about a mole, lots of models have those and freckles too. Be sure to work on what's inside not just on the outside. You are beautiful. (More)
Question
Expert Answered
Asked 10/2/2012 5:47:49 PM
0 Answers/Comments
17,201,336 questions answered
Popular Conversations
Consider this quote: "In each of these historical instances . . . ...
Weegy: D. it stands for the omission of only a single word. User: Which of the following statements correctly ...
9/1/2014 8:30:28 AM| 2 Answers
The invasion of this region temporarily halted the fighting between ...
Weegy: The invasion of A.Korea halted the the fighting between the KMT and CPC. User: The letters DMZ stand for ...
9/1/2014 3:12:20 PM| 2 Answers
what is a complex sentence
Weegy: User: what is a simple sentence Weegy: User: what is a compound sentence Weegy: A compound sentence ...
9/1/2014 5:04:39 PM| 2 Answers
Every set of three points is coplanar.
9/1/2014 7:59:14 PM| 2 Answers
Weegy Stuff
S
L
1
L
P
C
1
Points 224 [Total 6757]| Ratings 0| Comments 224| Invitations 0|Offline
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
P
C
Points 174 [Total 24573]| Ratings 0| Comments 174| Invitations 0|Online
S
L
C
P
C
1
L
L
P
C
1
Points 159 [Total 16098]| Ratings 1| Comments 149| Invitations 0|Offline
S
L
1
1
1
1
L
1
Points 121 [Total 9901]| Ratings 0| Comments 121| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 93 [Total 17265]| Ratings 0| Comments 93| Invitations 0|Online
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 73 [Total 18604]| Ratings 0| Comments 73| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 42 [Total 11288]| Ratings 0| Comments 42| Invitations 0|Offline
S
Points 29 [Total 699]| Ratings 0| Comments 29| Invitations 0|Offline
S
1
L
L
Points 28 [Total 5152]| Ratings 0| Comments 28| Invitations 0|Offline
S
P
C
L
P
L
1
Points 24 [Total 6081]| Ratings 1| Comments 14| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.