Grain corn harvest creates a huge amount of by-products in the shape of corn stover.
Governments and private grain dealers used to hold large inventories in normal times, just in case a bad harvest created a sudden shortage.
In many parts of the rural developing world, a lack of jobs for agricultural workers in the months between planting and harvest creates a lean season at a predictable time each year.
Nigerien families practice subsistence farming, growing enough food to sustain themselves until the next harvest, creating a situation of structural malnutrition.
A combination of violence and drought devastated last year's harvests, creating food shortages that have left 100,000 people facing famine and another 1 million at risk.
Not only does the overall gene pool improve, but periodic selective harvesting creates openings in the forest canopy, increasing habitat diversity as it releases understory trees.
Until 1995, when new rules governing the catch were implemented, there were only two 24- or 48-hour periods during the entire year when black cod could be harvested, creating a short period when it was available fresh.
Although Nimeiri at first sought to crush the southern rebels by military force, his deployment of the Sudanese army only succeeded in disrupting the distribution of food, which, when coupled with drought and diminished harvests, created widespread famine in southern Sudan.
Algal harvesting creates biofuels such as gas or oil-based fuels, hydrogen gas (Pittman et al. 2011), ethanol, biogas from methane for electricity (Rawat et al. 2011), and biodiesel, a fuel that is biodegradable, renewable, and low in CO2 emissions (Brennan and Owende 2010).
Moreover, if body size is sexually dimorphic, then size-dependent harvesting creates asymmetries in the capture rates of each sex and leads to biased operational sex ratios, which in turn may affect the outcome of sexual selection.
