Due to poaching, your favorite animals might be getting killed each day slowly decreasing their population, even though there are laws that are supposed to prevent this. Studies show that thousands of animals are getting killed each year and the hunters are not getting enough discipline for their actions. Though, they should not get the death penalty, they should at least get some type of restraint. Although many people think poachers should not get extreme punishment for their crimes, poaching laws should become harsher because killers are not getting enough retribution, people are wearing animals as clothes, and species are getting endangered. Some may say that poachers should not get death penalty for their crimes: however, many people do not realize that the hunters are not getting enough punishment.
As omnivores face high extinction rates, they may not have sufficient time to undergo speciation and form 2 different species before they go extinct. However, omnivores have not completely vanished due to high transition rates into omnivory. This would only occur when there is low availability of a preferred food source. For instance, an herbivore will only eat plants. Yet, when there are a low number of plants in the environment, herbivorous birds that can also take other food
Overpopulation causes a lack of food leading to animals starving, and animals suffer more this way than by getting shot. This situation can be prevented by having a set number of animals that can be shot every year and regulates the ecosystem. Furthermore, when an individual buys a hunting license the proceeds are returned to the states to support wildlife. Some of the money goes towards recruiting biologists, paying wardens, and maintain wildlife habitats (Howard). This allows for ethical hunters to continue to enjoy the land.
When a species population is reduced in size, it loses the rare alleles needed to make its species thrive in future generations (Primack), the loss or decline in the genotypes of a species creates weak offspring. Expanding on the population bottleneck we have the founder effect that is occurring, as populations become small and smaller we leave a select few to carry on the population through their breeding effects. Population bottlenecks have more of a pronounced effect when populations are reduced below ten individuals for several generations (Primack). Bottlenecks caused by catastrophic events or periods may have a rapid change in population, but species can overcome this bottleneck in future generations. The reason, in a rapid or mass removal of a species those that remain, have not suffered from genetic drifting or loss of alleles and those small in number the species remains strong.
Also, the lecturer argues that orcas are likely factors in the population decline of the sea otters because of the scarcity of their usual prepay. This left them with no other option but to hunt smaller mammals for food. The reading passage refutes this theory
As they started to produce more offspring’s and competing for food it made it harder for longer beak birds to gather more worms in order to survive. Over a period of time natural selection limits the quantity of animals in the same population. Smaller beak birds encounter a hardship because they couldn’t obtain the worms underneath the tank and longer beak birds would feed on floating worms as well. Competition on both long and short beak birds occurred in the experiment and over time the population for small beak decreased. What can be concluded is that longer beak birds eventually got overpopulated and would stop producing offspring’s because its in their nature to limit the amount of animals in one population.
Lake Xochimilco is also reduced in size due to less flooding (Lake Xochimilco 2015). On top of that, the lakes are polluted by Mexico-City. The disappearance of big parts of these lakes and their pollution has caused the population of A. mexicanum to decline. Moreover, A. mexicanum is eaten by local people (Zambrano and al. 2010).
Without bees our food supply would quickly decrease. Hazel Sillver says, “Honey bees are declining in population and may be facing extinction. This is bad not just for the bees, but also for humans, who rely on bees to pollinate many plants and important agricultural crops.” Without bees, crops cannot be pollinated, which stunts growth and can cause the crop to be uneatable or it could be left with very low nutrients. Later, Hazel Sillver states, “The bee is vital…. It pollinates
It would increase because of a decreased number of insects C. It would decrease because of an increased seed supply D. It would decrease because of decreased nesting area • Seeds and insects are eaten by the brown-headed cowbird for food. The food is then: A. Changed to sugar by the energy of the
My first point is that the Delta Smelt stopped pumping water for farmers to use. For this reason, crops are drying up with no water. Also, less food is being grown such as vegetables and fruits. If less food is being grown that means that food prices in the grocery stores will increase. If we don’t help the farmers get the water they need our whole environment will not be in good conditions.