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Title: . In considering interspecific competition, Charles Darwin proposed that specie Post by: emily on Aug 6, 2011 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. Title: Re: . In considering interspecific competition, Charles Darwin proposed that specie Post by: bio_man on Aug 6, 2011 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. Title: Re: . In considering interspecific competition, Charles Darwin proposed that specie Post by: bio_man on Aug 6, 2011 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? |