Industrial agriculture reduces the diversity of butterfly species
... Increased efficiency in the use of agricultural farmland is resulting in homogenisation of butterfly communities and a lower number of butterfly species. As cultivated areas grow in size, important butterfly habitats, such as field margins, meadows and open forest boundaries, are correspondingly con ...
... Increased efficiency in the use of agricultural farmland is resulting in homogenisation of butterfly communities and a lower number of butterfly species. As cultivated areas grow in size, important butterfly habitats, such as field margins, meadows and open forest boundaries, are correspondingly con ...
Scotland: Significant species and species groups
... Some invertebrate species can be classed as keystone species whose loss from an ecosystem would have a major effect on other species populations and ecological processes in that system. These include the Wood ants (Formica exsecta, Formica sanguinea, F. aquilonia and F. lugubris) which influence the ...
... Some invertebrate species can be classed as keystone species whose loss from an ecosystem would have a major effect on other species populations and ecological processes in that system. These include the Wood ants (Formica exsecta, Formica sanguinea, F. aquilonia and F. lugubris) which influence the ...
DISPERSAL OF PLANTS AND ANIMALS (See lecture notes in Class
... • Equally, the extinction on the island would be related to the number that have become residents. • When an island is nearly empty, the extinction rate is low because few species are available to compete with each other or be killed off by extreme events and become extinct. • And since the resource ...
... • Equally, the extinction on the island would be related to the number that have become residents. • When an island is nearly empty, the extinction rate is low because few species are available to compete with each other or be killed off by extreme events and become extinct. • And since the resource ...
B 6 Ecology and Conservation
... Community Ecology • Ecosystems are made up of many different, interacting populations of organisms, and the abiotic factors that affect them – Plants & animals – Water, temperature ...
... Community Ecology • Ecosystems are made up of many different, interacting populations of organisms, and the abiotic factors that affect them – Plants & animals – Water, temperature ...
the problems
... sustained hot and wet conditions, fine clay and silicate particles are removed in suspension, while Nitrogen (N), Calcium (Ca), Magnesium (Mg) and Potassium (K) are carried away in solution. Most rainforests have infertile soils but those in Madagascar are worse. This is due to the combination of hi ...
... sustained hot and wet conditions, fine clay and silicate particles are removed in suspension, while Nitrogen (N), Calcium (Ca), Magnesium (Mg) and Potassium (K) are carried away in solution. Most rainforests have infertile soils but those in Madagascar are worse. This is due to the combination of hi ...
Activity 1.1
... A Cypriot amateur beekeeper has kept bee hives in his garden for the last three years, but he has not been able to increase their number. Cyprus has had very little rainfall and it faces desertification. The bee hives have not produced swarms and two beehives have perished. Human impact on the envir ...
... A Cypriot amateur beekeeper has kept bee hives in his garden for the last three years, but he has not been able to increase their number. Cyprus has had very little rainfall and it faces desertification. The bee hives have not produced swarms and two beehives have perished. Human impact on the envir ...
avian extinctions in an isolated tropical wet
... is well isolated (more than 50 km from another large forested area) and that there are only small forest patcheswidely scatteredalong this westernbottom edge of the Andes. The lower slopesof the Andean foothills provide somenearby (20 kin) forests,but it is unclear if theseare secondaryhabitats or r ...
... is well isolated (more than 50 km from another large forested area) and that there are only small forest patcheswidely scatteredalong this westernbottom edge of the Andes. The lower slopesof the Andean foothills provide somenearby (20 kin) forests,but it is unclear if theseare secondaryhabitats or r ...
Terrestrial Habitat, Ecosystem and Plants Technical Report
... Fine habitat type: The most detailed level in the hierarchical habitat classification used for the terrestrial assessment. From coarsest to finest, the levels in the habitat classification system are land cover, coarse habitat type, broad habitat type and fine habitat type. Fire regime: The frequenc ...
... Fine habitat type: The most detailed level in the hierarchical habitat classification used for the terrestrial assessment. From coarsest to finest, the levels in the habitat classification system are land cover, coarse habitat type, broad habitat type and fine habitat type. Fire regime: The frequenc ...
Student Markscheme - Learning on the Loop
... The student is able to investigate indepth a pattern in an ecological community, with supervision. The report includes evidence of: Analysing and interpreting information about a NZ forest community. - Information may come from direct observations, collection of field data, tables, graphs, resourc ...
... The student is able to investigate indepth a pattern in an ecological community, with supervision. The report includes evidence of: Analysing and interpreting information about a NZ forest community. - Information may come from direct observations, collection of field data, tables, graphs, resourc ...
Rim Fire Reforestation 19777 Greenley Road Sonora, CA 95370
... achieving reasonable conifer densities are fair to excellent, even on sites with high cover of broad-leaved shrubs and hardwoods. Although conifer growth may be delayed by competition over the short term, benefits in terms of wildlife habitat and site fertility should be considered. ...
... achieving reasonable conifer densities are fair to excellent, even on sites with high cover of broad-leaved shrubs and hardwoods. Although conifer growth may be delayed by competition over the short term, benefits in terms of wildlife habitat and site fertility should be considered. ...
Chapter 3 Notes
... ecosystem changes, those populations that interact with them will also change Populations are also able to change their environment over time, particularly after a major change to that environment ...
... ecosystem changes, those populations that interact with them will also change Populations are also able to change their environment over time, particularly after a major change to that environment ...
“Conservation of small mammals and associated ecosystems” policy
... population cycles across Europe with direct impacts on the ecosystems they live in. Research results suggest that a common global environmental driver could be responsible for such cycles flattening. Based on EcoCycles research results, it would be advisable to better address the possible drivers le ...
... population cycles across Europe with direct impacts on the ecosystems they live in. Research results suggest that a common global environmental driver could be responsible for such cycles flattening. Based on EcoCycles research results, it would be advisable to better address the possible drivers le ...
Speaker Biographies
... Jonathan Thompson, Harvard Forest, Harvard University, Petersham, Massachusetts Jonathan Thompson is a Senior Ecologist at the Harvard Forest. He studies the ways that ecosystems change over large areas and long timeframes, with an emphasis on quantifying how land use--including harvest, conversion, ...
... Jonathan Thompson, Harvard Forest, Harvard University, Petersham, Massachusetts Jonathan Thompson is a Senior Ecologist at the Harvard Forest. He studies the ways that ecosystems change over large areas and long timeframes, with an emphasis on quantifying how land use--including harvest, conversion, ...
Chapter 22 Summary
... expansion of deserts and other factors such as acid rain. The Earth’s Climate and Biomes The earth’s ecosystems are influenced by weather patterns over time (climate). Predictable patterns of precipitation, temperature ranges, and local land forms (topography) are the primary abiotic factors determi ...
... expansion of deserts and other factors such as acid rain. The Earth’s Climate and Biomes The earth’s ecosystems are influenced by weather patterns over time (climate). Predictable patterns of precipitation, temperature ranges, and local land forms (topography) are the primary abiotic factors determi ...
Bio07_TR__U02_CH4.QXD
... 10. Inferring On a particular day at the beach, air is moving downward over the ocean and upward over the sand. What can you infer about the relative temperatures of the air over the sea and the air over the sand? ...
... 10. Inferring On a particular day at the beach, air is moving downward over the ocean and upward over the sand. What can you infer about the relative temperatures of the air over the sea and the air over the sand? ...
Decurrent False Aster Best Management Practices
... Decurrent False Aster is a big river floodplain species that grows in wetlands and on the borders of marshes, lakes, oxbows, and sloughs. It also may be found in old fields, roadsides, agricultural fields, and on levees. It favors sites characterized by moist soil and regular disturbance, preferably ...
... Decurrent False Aster is a big river floodplain species that grows in wetlands and on the borders of marshes, lakes, oxbows, and sloughs. It also may be found in old fields, roadsides, agricultural fields, and on levees. It favors sites characterized by moist soil and regular disturbance, preferably ...
Ch. 03 Introduction
... • Trophic level - the position that an organism occupies in a food chain OR a group of organisms in the community that occupy the same position in food chains • The trophic level that ultimately supports all others consists of autotrophs (primary producers) ...
... • Trophic level - the position that an organism occupies in a food chain OR a group of organisms in the community that occupy the same position in food chains • The trophic level that ultimately supports all others consists of autotrophs (primary producers) ...
Ecology: Practice Questions #1
... A. Energy flows into living organisms and remains there, while chemical compounds are transferred from organism to organism. B. Chemical compounds flow in one direction in a food chain and energy is produced. C. Energy is transferred from organism to organism in a food chain and chemical compounds a ...
... A. Energy flows into living organisms and remains there, while chemical compounds are transferred from organism to organism. B. Chemical compounds flow in one direction in a food chain and energy is produced. C. Energy is transferred from organism to organism in a food chain and chemical compounds a ...
Student Page - Project Learning Tree
... long. They feed on a variety of hardwood trees, especially ash, birches, buckeyes, elms, horsechestnuts, maples, poplars, sycamores, and willows. Their life cycle begins when a female beetle chews her way through the bark of a host tree and deposits her eggs. Eleven days later, the larvae emerge fro ...
... long. They feed on a variety of hardwood trees, especially ash, birches, buckeyes, elms, horsechestnuts, maples, poplars, sycamores, and willows. Their life cycle begins when a female beetle chews her way through the bark of a host tree and deposits her eggs. Eleven days later, the larvae emerge fro ...
Power Point Notes 4.3 Succession
... In 1883, the volcanic island of Krakatau in the Indian Ocean was blown to pieces by an eruption. The tiny island that remained was completely barren. Within two years, grasses were growing. Fourteen years later, there were 49 plant species, along with lizards, birds, bats, and insects. By 1929, a fo ...
... In 1883, the volcanic island of Krakatau in the Indian Ocean was blown to pieces by an eruption. The tiny island that remained was completely barren. Within two years, grasses were growing. Fourteen years later, there were 49 plant species, along with lizards, birds, bats, and insects. By 1929, a fo ...
Chapter 4: Ecosystems: Components, Energy Flow, Matter Cycling
... Functional diversity: diversity of biological and chemical processes needed for survival. 4-5 Primary Productivity The rate an ecosystem’s primary producers convert solar energy into biomass is called gross primary productivity (GPP). Some of this biomass is used to stay alive, grow, and reproduce ...
... Functional diversity: diversity of biological and chemical processes needed for survival. 4-5 Primary Productivity The rate an ecosystem’s primary producers convert solar energy into biomass is called gross primary productivity (GPP). Some of this biomass is used to stay alive, grow, and reproduce ...
species interaction and biological diversity1
... ecosystem • Nonnative: species that migrate or are deliberately or accidentally introduced into an ecosystem by humans. Also known as exotic or alien species • Indicator: serve as early warnings of damage to a community or an ecosystem • Keystone: species whose role is much more important than their ...
... ecosystem • Nonnative: species that migrate or are deliberately or accidentally introduced into an ecosystem by humans. Also known as exotic or alien species • Indicator: serve as early warnings of damage to a community or an ecosystem • Keystone: species whose role is much more important than their ...
Terrestrial Biomes
... Life-form Spectra: Traits that vary with climate such as perennating organ or tissues that give rise to new growth the following season ...
... Life-form Spectra: Traits that vary with climate such as perennating organ or tissues that give rise to new growth the following season ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.