2
votes
1answer
59 views

Could habitat selection pattern be deformed in environment with low variability?

It is possible that strong (clearly visible) pattern of selection towards particular parameter is detectable only in environment with high variability (difference between used (red) and non-used ...
2
votes
0answers
23 views

How do climate and location affect the Pine Processionary moth?

I have statistics on the occurence of the Pine Processionary moth (Thaumetopoea pityocampa); we have the regions that are located in Algeria, infested area in percent, the defiliation degree (small, ...
4
votes
1answer
57 views

How much cost would artificial pollination add to common products (fruits etc.)?

I've read about ecosystem services and their possible valuation - statements like "honeybee pollination service in the US is worth 1.6 billion dollars". Is data available on how this would affect the ...
2
votes
2answers
101 views

Interdependency between organsims on our planet and its relation to ecosystem?

I am not a biologist but I just wonder if all species are interdependent. I mean if the tiger becomes extinct does it affect the ecosystem? If the mosquito or mouse become extinct does it affect the ...
2
votes
0answers
68 views

Mesophytic Climax community in succession?

My textbook says that in all cases of ecological succession (xerarch, hydrarch, etc.), the ultimate climax community, assuming constancy of environment, is a mesic community. Xeric or hydric pioneers ...