Effects of afforestation on biodiversity
... It is well demonstrated that ground vegetation in forests is influenced both by the tree species and stand density. Reduced light availability and changed nutrient cycling are the most important mechanisms which influence the species composition of ground vegetation. Research in Iceland has shown th ...
... It is well demonstrated that ground vegetation in forests is influenced both by the tree species and stand density. Reduced light availability and changed nutrient cycling are the most important mechanisms which influence the species composition of ground vegetation. Research in Iceland has shown th ...
Biomes are the major types of terrestrial ecosystems
... depth from a few meters to 1,500 meters. ...
... depth from a few meters to 1,500 meters. ...
What is Biodiversity?
... • Species diversity: species number weighted by measure of importance, such as abundance, productivity or size For example: Shannon’s diversity index (H) = -∑ρi ln ρi ρi is the proportion of the total number of specimens of species i expressed as a proportion of the total number of specimens for all ...
... • Species diversity: species number weighted by measure of importance, such as abundance, productivity or size For example: Shannon’s diversity index (H) = -∑ρi ln ρi ρi is the proportion of the total number of specimens of species i expressed as a proportion of the total number of specimens for all ...
File
... toad thrived and started to feed on other insects. It took over other native amphibian habitats and brought foreign diseases to reptiles. • They contain a poison in glands in their shoulders and are poisonous to crocodiles, tiger snakes and dingoes. This is an example where new introduced organisms ...
... toad thrived and started to feed on other insects. It took over other native amphibian habitats and brought foreign diseases to reptiles. • They contain a poison in glands in their shoulders and are poisonous to crocodiles, tiger snakes and dingoes. This is an example where new introduced organisms ...
Pole to Pole
... The NSW Roads and Traffic Authority (RTA) is duplicating the Hume Highway between Sturt Highway and Table Top in south-western New South Wales. The length of works totals 67km. The project is being delivered through two alliance partnerships. The Hume Highway Southern Alliance is responsible for the ...
... The NSW Roads and Traffic Authority (RTA) is duplicating the Hume Highway between Sturt Highway and Table Top in south-western New South Wales. The length of works totals 67km. The project is being delivered through two alliance partnerships. The Hume Highway Southern Alliance is responsible for the ...
Topic 2: The Ecosystem
... 2.1.6 Define the terms species, population, habitat, niche, community, and ecosystem with reference to local examples. Community – Group of populations living and interacting with each other in a common habitat. Community of Minnehaha ...
... 2.1.6 Define the terms species, population, habitat, niche, community, and ecosystem with reference to local examples. Community – Group of populations living and interacting with each other in a common habitat. Community of Minnehaha ...
fish diversity of floodplain lakes on the lower stretch of
... than that found for African continental waters, but was similar to those found for the Tocantins River, a tributary of the Amazon, that has virtually no flood plain areas (Merona, 1986/87). These authors also point out that this high diversity is not directly related to environmental pecularities, b ...
... than that found for African continental waters, but was similar to those found for the Tocantins River, a tributary of the Amazon, that has virtually no flood plain areas (Merona, 1986/87). These authors also point out that this high diversity is not directly related to environmental pecularities, b ...
Biogeography part two -11
... America and Africa and land that would eventually become India, Australia, and Antarctica. Through movements of the Earth's crust, Madagascar, along with India, first split from Africa and South America and then from Australia and Antarctica, and started heading north. India eventually smashed into ...
... America and Africa and land that would eventually become India, Australia, and Antarctica. Through movements of the Earth's crust, Madagascar, along with India, first split from Africa and South America and then from Australia and Antarctica, and started heading north. India eventually smashed into ...
species diversity
... Ice-Age mammals went extinct (e.g., woolly mammoth, giant sloth) Caused by receding of ice sheets and/or hunting by humans Modern extinctions 75 percent of extinction since 1600 due to human activity (e.g., habitat destruction, introduction of species) ...
... Ice-Age mammals went extinct (e.g., woolly mammoth, giant sloth) Caused by receding of ice sheets and/or hunting by humans Modern extinctions 75 percent of extinction since 1600 due to human activity (e.g., habitat destruction, introduction of species) ...
Invasive plant and animal effects on the black
... pickleweed (Batis maritima) have altered the environment for the native animal species, especially already endangered bird species like black-netted stilt (Himantopus mexicanus knudseni) and the indigenous black-crowned night heron (Nycticorax hoatil). ...
... pickleweed (Batis maritima) have altered the environment for the native animal species, especially already endangered bird species like black-netted stilt (Himantopus mexicanus knudseni) and the indigenous black-crowned night heron (Nycticorax hoatil). ...
CL25521523
... The order Odonata is one of the most popular insect groups. Dragonflies and damselflies are amongst the most attractive of creatures on earth. According to Silsby, (2001), eight super families, 29 families and some 58 sub-families of dragonflies for approximately 600 genera and 6000 named species ha ...
... The order Odonata is one of the most popular insect groups. Dragonflies and damselflies are amongst the most attractive of creatures on earth. According to Silsby, (2001), eight super families, 29 families and some 58 sub-families of dragonflies for approximately 600 genera and 6000 named species ha ...
The Fauna of Fraser Island
... Fraser Island, provide significant habitats for Australian bass (Macquarie novemaculeata), a species whose distribution and abundance have been dramatically reduced elsewhere since European settlement. ...
... Fraser Island, provide significant habitats for Australian bass (Macquarie novemaculeata), a species whose distribution and abundance have been dramatically reduced elsewhere since European settlement. ...
Biodiversity Loss and Species Extinction
... • Mammal species (21%), bird species (12%) • 17–74% of all other species ...
... • Mammal species (21%), bird species (12%) • 17–74% of all other species ...
Succession - Madison County Schools
... but left the soil intact CLIMAX COMMUNITY: the stage in succession where the community has become relatively stable through successful adjustment to its environment ...
... but left the soil intact CLIMAX COMMUNITY: the stage in succession where the community has become relatively stable through successful adjustment to its environment ...
Relative abundance I: commonness and rarity
... Low genetic variation High dependence on species that are extinction vulnerable ...
... Low genetic variation High dependence on species that are extinction vulnerable ...
Apr 10 - University of San Diego
... A group of genetically similar organisms that interbreed naturally and freely to produce viable, fertile offspring, but do not share this behavior and outcome with individuals of other species ...
... A group of genetically similar organisms that interbreed naturally and freely to produce viable, fertile offspring, but do not share this behavior and outcome with individuals of other species ...
MEASURING BIODIVERSITY (REVISED) If you take a walk outdoors
... If you take a walk outdoors, say along the American River or in the foothills of the Sierra Nevada, you’ll encounter a tremendous variety of species – plant, animal, fungal, and microbial. Even at this very local scale and in a brief walk, you’re likely to come across dozens if not hundreds of diffe ...
... If you take a walk outdoors, say along the American River or in the foothills of the Sierra Nevada, you’ll encounter a tremendous variety of species – plant, animal, fungal, and microbial. Even at this very local scale and in a brief walk, you’re likely to come across dozens if not hundreds of diffe ...
Ecosystem Characteri..
... another person using the same method, though different placement of sampling sites within the study area, would come up with estimates within an acceptable range from your own. This implies that any method you choose is replicable and is well described in your reports. Remember that assessing the st ...
... another person using the same method, though different placement of sampling sites within the study area, would come up with estimates within an acceptable range from your own. This implies that any method you choose is replicable and is well described in your reports. Remember that assessing the st ...
BIOL 4120: Principles of Ecology Lecture 16: Community Ecology
... Hypothesis one: all species interactions are important; remove any one of these species may have a cascading effect on all others. Hypothesis two: ...
... Hypothesis one: all species interactions are important; remove any one of these species may have a cascading effect on all others. Hypothesis two: ...
ENDANGERED SPECIES
... *Provide a map that illustrates the Hotspots’ location. ___ Include its latitude and longitude on the map. ___ Include its political boundaries ___ *Name its biome type ___; describe its climate ___ AND describe the dominant plant and animal types. ___ *Estimate the number of endangered, threatened, ...
... *Provide a map that illustrates the Hotspots’ location. ___ Include its latitude and longitude on the map. ___ Include its political boundaries ___ *Name its biome type ___; describe its climate ___ AND describe the dominant plant and animal types. ___ *Estimate the number of endangered, threatened, ...
Full text - Merit Research Journals
... the near-minimum group of areas with the capacity of representing all kinds (Balmford et al., 2001). Southwestern Nigeria, from the point of view of biodiversity, however, is the spot of high population densities, and both guarded areas and unprotected forests (community forests) have been through t ...
... the near-minimum group of areas with the capacity of representing all kinds (Balmford et al., 2001). Southwestern Nigeria, from the point of view of biodiversity, however, is the spot of high population densities, and both guarded areas and unprotected forests (community forests) have been through t ...
Global Dispersal of Free-Living Microbial Eukaryote Species
... (11)], and independent estimates place the species richness of all free-living protozoa somewhere in the range of 10,000 to 20,000 (12, 13). These are relatively small numbers compared with 5 million species of insects (14). The main difference, of course, is that many insect species have geographic ...
... (11)], and independent estimates place the species richness of all free-living protozoa somewhere in the range of 10,000 to 20,000 (12, 13). These are relatively small numbers compared with 5 million species of insects (14). The main difference, of course, is that many insect species have geographic ...
Chapter4
... the east coast of Africa to feed the Italian army, which was invading Ethiopia at the time Quickly spread to local cattle and wildlife populations From there the disease swept across eastern and southern Africa, with devastating consequences Within 10 years it had reached South Africa ...
... the east coast of Africa to feed the Italian army, which was invading Ethiopia at the time Quickly spread to local cattle and wildlife populations From there the disease swept across eastern and southern Africa, with devastating consequences Within 10 years it had reached South Africa ...
Vegetation and Insect Surveys at the Wildlands Conservancy
... to the baseline transect. Conduct the insect surveys before you do the vegetation surveys. In the forest, walk along the transect and beat all the vegetation that touches or overlays the transect. Walk slowly and beat as many branches and shrubs as you can. Be sure to aspirate the insects and spider ...
... to the baseline transect. Conduct the insect surveys before you do the vegetation surveys. In the forest, walk along the transect and beat all the vegetation that touches or overlays the transect. Walk slowly and beat as many branches and shrubs as you can. Be sure to aspirate the insects and spider ...
Fauna of Africa
Fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical ecoregion. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife.