Forest restoration, biodiversity and ecosystem functioning R E V I E W
... tree species with strong global timber markets are readily available, this may suggest that monocultures are an option. However, evidence is accumulating that focussing on one single ecosystem function often overlooks an important aspect of biodiversity: the possibility of one species to contribute ...
... tree species with strong global timber markets are readily available, this may suggest that monocultures are an option. However, evidence is accumulating that focussing on one single ecosystem function often overlooks an important aspect of biodiversity: the possibility of one species to contribute ...
Ch. 5 Review PP
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
Lichens - Corridor appalachien
... Animals, plants and fungi are three major groupings of multicellular life on earth. Fungi are primarily responsible for decomposition, or biological recycling; their diversity is well beyond that of plants and animals. Examples of fungi include the mushrooms you eat and the bracket polypores that lo ...
... Animals, plants and fungi are three major groupings of multicellular life on earth. Fungi are primarily responsible for decomposition, or biological recycling; their diversity is well beyond that of plants and animals. Examples of fungi include the mushrooms you eat and the bracket polypores that lo ...
microbial ecology-2012
... characteristic successional changes that may also lead to greater stability. Disturbances may disrupt the successional process but homeostatic forces act to restore the balance of a community. Stable microbial communities tend to have high diversities. The interactions within the community are often ...
... characteristic successional changes that may also lead to greater stability. Disturbances may disrupt the successional process but homeostatic forces act to restore the balance of a community. Stable microbial communities tend to have high diversities. The interactions within the community are often ...
Ecological Kinds and Ecological Laws
... behavior does quite a bit better. I suggest that more often than not, important ecological processes – including, but not limited to, competition – correlate better with functional properties than with historical ones. This pattern, if widespread, might partly explain why some ecologists in the 1970 ...
... behavior does quite a bit better. I suggest that more often than not, important ecological processes – including, but not limited to, competition – correlate better with functional properties than with historical ones. This pattern, if widespread, might partly explain why some ecologists in the 1970 ...
Population differentiation, local adaptation and gene flow in the
... • However: within species no such trend was detected The trend does not operate across all cases (in 16 of 29 species pairs) Co-variation among traits may constrain the correlation between altitude and seed weight, high gene flow may homogenize populations Conclusion: Constraints may operate against ...
... • However: within species no such trend was detected The trend does not operate across all cases (in 16 of 29 species pairs) Co-variation among traits may constrain the correlation between altitude and seed weight, high gene flow may homogenize populations Conclusion: Constraints may operate against ...
Article - Invasive Species Council of BC
... Economic Impacts of Invasive Plants in BC The sudden ignition of a brightly lit wildfire on the horizon sparks immediate actions and budgeted resources. After all, the loud, crackling, hot flames are hard to ignore as they advance toward communities. So how should we respond to the silent, but signi ...
... Economic Impacts of Invasive Plants in BC The sudden ignition of a brightly lit wildfire on the horizon sparks immediate actions and budgeted resources. After all, the loud, crackling, hot flames are hard to ignore as they advance toward communities. So how should we respond to the silent, but signi ...
Biogeographic Crossroads as Priority Areas for Biodiversity
... Abstract: Threats to biodiversity outpace the resources of the conservation community and necessitate careful prioritization of conservation actions. I suggest that targeting the regions where biogeographic assemblages intersect—“biogeographic crossroads”—is a strategy that may achieve significant c ...
... Abstract: Threats to biodiversity outpace the resources of the conservation community and necessitate careful prioritization of conservation actions. I suggest that targeting the regions where biogeographic assemblages intersect—“biogeographic crossroads”—is a strategy that may achieve significant c ...
1.4.1 - 1.4.4 Ecology, Ecosystem, Biosphere, Habitat
... This includes how a population responds to the abundance of its resources and enemies (e.g. by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g. by reducing the abundance of resources through consumption and contributi ...
... This includes how a population responds to the abundance of its resources and enemies (e.g. by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g. by reducing the abundance of resources through consumption and contributi ...
1.4.1 - 1.4.4 Ecology, Ecosystem, Biosphere, Habitat
... This includes how a population responds to the abundance of its resources and enemies (e.g. by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g. by reducing the abundance of resources through consumption and contributi ...
... This includes how a population responds to the abundance of its resources and enemies (e.g. by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g. by reducing the abundance of resources through consumption and contributi ...
ECOBAR Benthic indicators for monitoring the ecosystem of the
... exploits the Goliat field (only major find to date). Both Norway and Russia increase exploration in Barents. ...
... exploits the Goliat field (only major find to date). Both Norway and Russia increase exploration in Barents. ...
Temporal stability in forest productivity increases with tree diversity
... Through extensive simulations, this approach has shown that tree species richness promotes average productivity in European temperate forests, mostly through strong complementarity between species, demonstrating that competition for light alone may induce a positive effect of biodiversity on average ...
... Through extensive simulations, this approach has shown that tree species richness promotes average productivity in European temperate forests, mostly through strong complementarity between species, demonstrating that competition for light alone may induce a positive effect of biodiversity on average ...
A Preliminary Survey of Rubble Organisms at Two Disturbed Areas
... rubble were found to be the main cover types. Sand was the main cover type for site 3. Sites 2 and 4 had the highest rugosity indexes. During the preliminary survey of all the sites, 27 species were found. These species were entered into the database. Based on Sorensen’s Coefficient Index, there was ...
... rubble were found to be the main cover types. Sand was the main cover type for site 3. Sites 2 and 4 had the highest rugosity indexes. During the preliminary survey of all the sites, 27 species were found. These species were entered into the database. Based on Sorensen’s Coefficient Index, there was ...
What is ecosystem stability?
... TEKS 12F: Describe how environmental change can impact ecosystem stability. ...
... TEKS 12F: Describe how environmental change can impact ecosystem stability. ...
Biodiversity - University of London International Programmes
... Activity 2: Patterns in the spatial distribution of plants................................. 95 Activity 3: Naturalness and equilibrium........................................................ 100 Activity 4: Population dynamics models........................................................ 100 Activi ...
... Activity 2: Patterns in the spatial distribution of plants................................. 95 Activity 3: Naturalness and equilibrium........................................................ 100 Activity 4: Population dynamics models........................................................ 100 Activi ...
Opposing intraspecific vs. interspecific diversity effects on
... Tree species richness promoted growth but had no effect on herbivory. In contrast, SF diversity reduced growth and increased herbivory but only so in species mixtures. Most of the observed effects were time dependent, with the largest effect found in 2013. Our results suggest that biodiversity can a ...
... Tree species richness promoted growth but had no effect on herbivory. In contrast, SF diversity reduced growth and increased herbivory but only so in species mixtures. Most of the observed effects were time dependent, with the largest effect found in 2013. Our results suggest that biodiversity can a ...
Local Biodiversity Action Plan
... Climate Change Although climate change is largely accepted, the specific impact it is having, and will have in the future, is difficult to predict. The distribution of species and valued habitats may contract or expand or be wiped out completely. Non-native species may expand their range and provide ...
... Climate Change Although climate change is largely accepted, the specific impact it is having, and will have in the future, is difficult to predict. The distribution of species and valued habitats may contract or expand or be wiped out completely. Non-native species may expand their range and provide ...
Glossary
... Variety of different species (species diversity), genetic variability among individuals within each species (genetic diversity), variety of ecosystems (ecological diversity), and functions such as energy flow and matter cycling needed for the survival of species and ...
... Variety of different species (species diversity), genetic variability among individuals within each species (genetic diversity), variety of ecosystems (ecological diversity), and functions such as energy flow and matter cycling needed for the survival of species and ...
Botanic Garden of the University of Coimbra = Scientists
... Do you know what a botanic garden is? And about an ecosystem? Is a tree part of an ecosystem or is it itself an ecosystem? What factors can influence biodiversity and an ecosystem? After, e.g.: Can you point to: individual, population, community, ecosystem, in the garden? What are the differences? ...
... Do you know what a botanic garden is? And about an ecosystem? Is a tree part of an ecosystem or is it itself an ecosystem? What factors can influence biodiversity and an ecosystem? After, e.g.: Can you point to: individual, population, community, ecosystem, in the garden? What are the differences? ...
the wealth of islands
... The island nations of this world are currently under a monumental threat to their economic health, cultural identity, unique marine and terrestrial biodiversity - indeed to their very existence. Our people, 600 million strong in 47 countries, with 16% of the planet's known plant species, are faced w ...
... The island nations of this world are currently under a monumental threat to their economic health, cultural identity, unique marine and terrestrial biodiversity - indeed to their very existence. Our people, 600 million strong in 47 countries, with 16% of the planet's known plant species, are faced w ...
ecosystem development
... such as bare soil that is being reclaimed vegetationally, that are in the early stage of succession these food chains are linear and relatively simple and usually consist of grazing food chains that form simple plant-herbivore-carnivore sequences. As ecosystems mature, the food chains become more co ...
... such as bare soil that is being reclaimed vegetationally, that are in the early stage of succession these food chains are linear and relatively simple and usually consist of grazing food chains that form simple plant-herbivore-carnivore sequences. As ecosystems mature, the food chains become more co ...
At high densities kangaroo grazing can reduce biodiversity
... skink; (6) reduce the occurrence of the vulnerable striped legless lizard; (7) reduce the quality of habitat for many species of bird; and (8) reduce the quality of habitat for endangered eastern barred bandicoots, threatening a reintroduction program. In particular, the striped legless lizard appea ...
... skink; (6) reduce the occurrence of the vulnerable striped legless lizard; (7) reduce the quality of habitat for many species of bird; and (8) reduce the quality of habitat for endangered eastern barred bandicoots, threatening a reintroduction program. In particular, the striped legless lizard appea ...
Annex - The Wildlife Trusts
... nationally and locally important sites and protected species will only be acceptable if there is clear evidence that the development outweighs the nature conservation interest; 4. Reducing habitat and species fragmentation by developing a functioning ecological framework for the Borough; 5. Requirin ...
... nationally and locally important sites and protected species will only be acceptable if there is clear evidence that the development outweighs the nature conservation interest; 4. Reducing habitat and species fragmentation by developing a functioning ecological framework for the Borough; 5. Requirin ...
Biodiversity
Global Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. Terrestrial biodiversity tends to be highest near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth. It is the richest in the tropics. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time but will be likely to slow in the future.The number and variety of plants, animals and other organisms that exist is known as biodiversity. It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. The richness of biodiversity depends on the climatic conditions and area of the region. All species of plants taken together are known as flora and about 70,000 species of plants are known till date. All species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc.Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively.The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.