The degradation of ecosystems and loss of biodiversity is increasing at an alarming rate every year. Humans are certainly not the only reason for this, but they are the main contributors. The well-being of ecosystems affects our everyday lives - consumption and consumerism depend on natural resources. Everything humans use is derived from them, in seemingly indirect and direct ways. Yet despite the fact that humans are destroying the environment, many continue to and neglect to take important measures to protect it.
Biodiversity is affected by five main pressures: habitat loss and degradation, climate change, excessive nutrient load and pollution, over-exploitation, and invasive alien species. As mentioned before, humans are not the only force that influences the environment. Natural events such as volcanic eruptions can potentially disrupt an ecosystem’s balance as well. However, at least three out of five of the principle pressures are caused by humans, although it is arguable that we do play a crucial role in speeding climate change and transporting invasive species. Ecosystem degradation and biodiversity loss is almost like the result of the other issues.
The impacts of this issue are important in many ways. Up to forty percent of the world’s economy depends on natural resources, and perpetually using these resources inevitably means that they will run out. The economy would suffer greatly. It wouldn’t be accustomed to using other sources of energy after depending on non-renewable resources for so long. Without biodiversity, large amounts of money have to be spent to provide services that were otherwise given to us free by nature. For example, oceans recycle sewage into nutrients, remove toxins from the water,...
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...umans destroy the environment, they have the ability to restore it.
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What is Biodiversity? California Biodiversity Council, 2008. Web. 19 May 2014.
As discussed previously, Kareiva and Marvier argue that focusing on human welfare does not have to sacrifice biodiversity (962-969). However, some find that the argument only holds when conservation itself is tied to a clearly outlined conservation agenda (Sanderson and Redford 389). For conservation efforts to be successful, multiple countries and agencies need to cooperate (“Lecture Week 13”). Conservationists, economists, and political strategists must find conservation issues that do not hinder efforts to alleviate issues of the human condition such as global poverty and world hunger. In actuality, biodiversity loss and poverty are linked, but conservation strategies that will reap success in integrating the two need clear conceptual frameworks (Adams et al. 1146). In order to find a balance and to foster stability for lasting and sustainable development and environmental health, it is important to take humans out of the equation when assessing the status of the environment, and to implement formal scientific strategies to conservation policies (Erwin
Ecosystem instability is a problem that we can no longer put off to the side. We are being confronted with this problem and we need to find ways to resolve the present situations. The forms of confrontation are through foriegn invaders and lack of apex predators (to name a few). We must realize that through research as well as changes in lifestyle we can save our planet. These changes must occur individually for them to be a true success.
Humans have played major roles in destroying and protecting a variety of ecosystems. Currently there are many people involved in changing others views on protective earth practices and aware of their impact on changing environments. This is best seen in climate change, conservation movements, and hunting and fishing practices and policies. However, there are already major impacts from climate change, particularly in northern areas, the future impact of a changing climate is rarely considered when determining land-use, including environmental assessments. With expanding resource removal behaviours, the impact of a changing climate and human activities on vulnerable wild life and ecosystems is a big problem. Adding to the problem is a lack of
Influence on ecosystems range from human causes like the bulldozing of a forest to natural causes like a fire or a flood. In recent times, the introduction and spread of invasive species has transformed native communities rapidly and, in some cases, created irreversible damages. In the Earth’s history, changes have often occurred in the ecosystems. For example, glaciers and the retreat of glaciers cause wide-spread changes. However, although change is a constant in ecosystems, animals and habitats often cannot adapt to the rapid alterations of non-natural stresses. Harm to the environment from the introduction of invasive species occurs through changes in the habitat and declines in the native species. Invasive species can make changes in a habitat’s physical structure, hydrology and salinity, productivity, energy flow, and fire cycle. Declines in biodiversity occur through competition, disruption of the food web, and genetic hybridization. These habitat and species modifications could create an irreversible shift in the ecosystem, creating an altered, stable state.
The 1992 Convention on Biodiversity (CBD) conceded that the eminent adversity threatening biological and resource diversity is a global calamity. Pertaining to biodiversity alone, studies have revealed that about 1.4 million of all known species (comprising of 26.96% of flora and 73.04% of fauna) are in existence globally (WCMC, 1992; Bhargava, 2006). Despite the rich biological diversities, there are manifestations that, these global diversities are constantly disappearing at quite an alarming proportion. Biodiversity levels are projected to be deteriorating across the globe with about 25% of all mammals threatened by extinction in the next three (3) decades (Yelfaanibe, 2011). Some scholars have advanced reasons responsible for the failure
Biodiversity crisis is the accelerating loss of species diversity and ecosystems mainly because of human actions. Biodiversity crisis is a greater threat to the survival of human beings on the earth because human beings are entirely dependent on biodiversity for livelihoods. The direct uses of biodiversity includes food, fiber, medicine, fuel wood, timber, building materials, industrial products (waxes, rubber, oils), and like. The indirect benefits of biodiversity are mainly the ecosystems services such as water purification, nutrient cycling, carbon sequestration, climate regulation, soil and water conservation, water quality, pollination, nutrient cycling and like. Currently, a large number of poor people in the developing world rely directly
In the past 50 years, we have drastically changed the environment to meet our growing demands. These alterations are causing major problems in several ecosystems. Living unsustainably, changing natural order, and reversing the degradation of ecosystems are the three main problems we face.
Human beings are heavily reliant on nature’s biodiversity. This biodiversity, however, is threatened by accelerating extinction rates which are approaching past mass extinction levels. Human activities are largely responsible for this trend, and, while there has been some success in preserving select species, the scale of the impending extinction will necessitate the conservation of existing ecosystems if biodiversity is to be preserved. Fortunately, the relative geographical concentration of most biodiversity makes such efforts both possible and economically feasible.
Many of the issues of biodiversity loss can be traced back to human interaction to the environment. One of the issues is alteration and loss of habitats. A lot of this issue is based on the destruction of habitats and for the land to be used for human consumption. The land is either used up for agricultural use or for neighborhoods. Destroying habitats and building them for our own use can have a positive impact on our way of living but a negative impact on the environment. We would gain land for building land for crops and communities to be built. The habitat for the animals would be destroyed and the species local to the land would either relocate or die. There are restrictions to deforesting land and there are organizations to help protect the land.
According to World WildLife Fund, many ecosystems around the world are being destroyed, eliminating many plant and animal species that inhabit them (“Pollution”).
The Earth is far and away the most biodiverse planet in our solar system, with about 8.7 million more unique species than the other 8 planets (UNEP). However, the Earth’s commanding lead is shrinking; not because the other planets are increasing biodiversity, but because Earth’s is decreasing. According to the World Wildlife Fund, we as a planet are losing 1,000 to 10,000 more species than the natural rate. Since the total number of species is hard to pin down, this can mean anywhere from 200 to 10,000 species going extinct per year (World Wildlife Fund). This obscenely high extinction rate is dangerous not just to ecosystems directly affected by the loss, but also creates a domino effect that circles around the globe and up and down the food
Scientists have begun to say that we have to do more to protect our ecosystem, because our very existence is depending upon it. When the ecosystem is not functioning properly the continuation of plant, animal and human life ecosystems would be impossible. Life cycles can not function without ecosystems. The ecosystem provides us with clean air, water, habitats for fish and other services. They also aid in the mod...
Nowadays it is common to read articles in newspapers and magazines regarding biodiversity issues. Human beings have been knowingly and unknowingly destroying biodiversity since their existence. Biodiversity is the measure of the variety of species of animals living in an area. Forests are usually areas with high biodiversity while deserts are the opposite. Human beings have always destroyed biodiversity either by deforestation, or by some other means. Biodiversity depletion is a natural phenomenon. But the present levels of biodiversity depletion are many times higher than the natural rate. Recently the levels of loss in biodiversity have started causing global concern. Some of the main causes for loss in biodiversity are alteration of habitats, increasing levels of pollution and human population growth.
The United Nations designated 2011-2020 as the United Nations Decade on Biodiversity. In biodiversity, each species, no matter how big or small has an important role to play in ecosystem. Various plant and animal species depend on each other what each offers and these diverse species ensures natural sustainability for all life forms. A healthy and solid biodiversity can recover itself from variety of disasters. It is estimated that the current species extinction rate is between 1,000 and 10,000
NEED AND PURPOSE FOR CONSERVATION OF BIODIVERSITY: Biodiversity, a contraction of “biological diversity,” generally refers to the variety and variability of life on Earth. The very existence of human species and sustainable development depend on biodiversity conservation, therefore the need for conservation of biodiversity is basically for this reason that all living creatures need other creatures and plants in one way or the other. At least 40 per cent of the world’s economy and 80 per cent of the needs of the poor are mainly derived from biological resources. Biodiversity is necessary for our existence as well as valuable in its own right as it provides the fundamental building blocks for the many goods and services which are essential