The following figure is a model of seedling establishment as a function of distance from a parent tree. Initial seed density measures the number of seeds falling to the ground. Seed survivorship measures the proportion of seeds that survive to the adult stage at each distance

Which of the following factors is most likely to generate the seed density curve shown? 

#Question id: 11262

#Unit 10. Ecological Principles

When a social organization consists of cooperative individuals, selection will always favor individuals that increase their personal reproductive success by __________.

#Question id: 11263

#Unit 10. Ecological Principles

Studies of parasitism of kentucky warblers by brown-headed cowbirds have shown that fragmentation has ____________the rate of parasitism because of ____________ edge habitat and ____________ habitat quality.

#Question id: 11265

#Unit 10. Ecological Principles

Approximately how many kg of carnivore production can be supported by a field plot containing 2000 kg of plant material?

#Question id: 11266

#Unit 10. Ecological Principles

Which of the following options lists ecosystems in increasing order of consumption efficiency of herbivore?

#Question id: 11267

#Unit 10. Ecological Principles

Two boottle containing phyoplankton in growing stage with oxygen level  20 mg/ml, in which one bottle placed in dark but another bottle placed in light , allowed to measurment of oxygen level is  15 mg/ml in dark bottle, 30 mg/ml in light bottle. Which of the following measure GPP is

#Question id: 11268

#Unit 10. Ecological Principles

Consumption efficiency (CE) is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level but Assimilation efficiencies (AE) is the proportion of ingested energy that is assimilated into the bloodstream. Which of the Following statement is correct?