× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
New Topic  
emily emily
wrote...
Posts: 49
Rep: 1 0
12 years ago
1)In considering interspecific competition, Charles Darwin proposed that species belonging to the same genus would compete most intensely because they would overlap more than unrelated species in the kinds of resources utilized. Discuss this idea from the perspective of exploitation competition.


2)The Finnish scientist Cajander observed that, in northern Europe, Scots pine typically occurs on unproductive sites, those that are either wet and acidic or dry and basic. However, under forestry management, this species performs best on productive sites, those that are fertile and have intermediate moisture conditions. Discuss this discrepancy between the observed distribution of Scots pine and its performance in cultivation. 
Read 1488 times
2 Replies

Related Topics

Replies
wrote...
Educator
12 years ago
1)In considering interspecific competition, Charles Darwin proposed that species belonging to the same genus would compete most intensely because they would overlap more than unrelated species in the kinds of resources utilized. Discuss this idea from the perspective of exploitation competition.

Exploitation competition occurs indirectly through a common limiting resource (i.e. food) which acts as an intermediate. For example, the use of resources by one species depletes the amount available to others, or they compete for space.
wrote...
Educator
12 years ago
2)The Finnish scientist Cajander observed that, in northern Europe, Scots pine typically occurs on unproductive sites, those that are either wet and acidic or dry and basic. However, under forestry management, this species performs best on productive sites, those that are fertile and have intermediate moisture conditions. Discuss this discrepancy between the observed distribution of Scots pine and its performance in cultivation.

All I can really say is that there is likely considerable biochemical variation in Scots pine (different species of this plant that grow differently, based on the soil composition). It's really hard to tell because acid rain usually has an affect on growth and nutrient uptake, so I can't really speculate how these conditions actually promote growth.

What have you learned about this, Emily?
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  840 People Browsing
 189 Signed Up Today
Related Images
  
 200
  
 984
  
 930
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4