Biodiversity, Species Interactions, and Population Control
... growth, in which the growth rate decreases as the population becomes larger and faces environmental resistance. Over time, the population size stabilizes at or near the carrying capacity (K) of its environment, which results in a sigmoid (S-shaped) population growth curve. Depending on resource avai ...
... growth, in which the growth rate decreases as the population becomes larger and faces environmental resistance. Over time, the population size stabilizes at or near the carrying capacity (K) of its environment, which results in a sigmoid (S-shaped) population growth curve. Depending on resource avai ...
Ecological Relationships
... ecosystem http://www2.warwick.ac.uk/about/environment/faqs/biodiversity.jpg ...
... ecosystem http://www2.warwick.ac.uk/about/environment/faqs/biodiversity.jpg ...
Week 7 2010
... • Size difference reduced competition • One case, but it shows this effect is possible • Authors do NOT claim size difference evolved due to competition • Has not established that size would evolve in response to competition ...
... • Size difference reduced competition • One case, but it shows this effect is possible • Authors do NOT claim size difference evolved due to competition • Has not established that size would evolve in response to competition ...
Limiting factors restrain population growth
... Over time, species evolve to use resources in different ways through resource partitioning, which decreases competition by dividing up a resource. Resource partitioning may result in character displacement, where competing species evolve physical characteristics that make them more different from e ...
... Over time, species evolve to use resources in different ways through resource partitioning, which decreases competition by dividing up a resource. Resource partitioning may result in character displacement, where competing species evolve physical characteristics that make them more different from e ...
Species Invasions - UK College of Agriculture
... • Because islands are by nature somewhat isolated from other land parcels, they tend to be more susceptible to invasive species. Why? – There tends to be more niches open on islands, with reduced competition because of the difficulty of species to reach them and successfully establish in the first p ...
... • Because islands are by nature somewhat isolated from other land parcels, they tend to be more susceptible to invasive species. Why? – There tends to be more niches open on islands, with reduced competition because of the difficulty of species to reach them and successfully establish in the first p ...
Chapter 5
... 4. Populations reunited when barrier removed, but are now different enough that they don’t interbreed. ...
... 4. Populations reunited when barrier removed, but are now different enough that they don’t interbreed. ...
biodiversity
... Since the Swedish botanist Carolus Linnaeus in the 1700s published his series of books titled the Systema Naturae as a system of classifying all living organisms, some 1,5 to 1,75 million species and subspecies have been identified and named scientifically. The most recent third edition of the refer ...
... Since the Swedish botanist Carolus Linnaeus in the 1700s published his series of books titled the Systema Naturae as a system of classifying all living organisms, some 1,5 to 1,75 million species and subspecies have been identified and named scientifically. The most recent third edition of the refer ...
Disruptive interactions: Predator
... native or alien. What is often important in the alien-native interactions, however, is the rate at which predation occurs. Invasive species are often ‘better’ predators, consuming more prey than native counterparts at a much faster rate – and this can of course have serious consequences for the prey ...
... native or alien. What is often important in the alien-native interactions, however, is the rate at which predation occurs. Invasive species are often ‘better’ predators, consuming more prey than native counterparts at a much faster rate – and this can of course have serious consequences for the prey ...
Western Himalayan Cold Deserts: Biodiversity, Eco
... rainfall, it is normally below 60 mm. The terrain consists of plains, plateaus, hills and valleys. The soils are generally grey and light, characterized by low fertility status coupled with poor water retention capacity and scanty plant cover. In absence of any substantial leaching of minerals from ...
... rainfall, it is normally below 60 mm. The terrain consists of plains, plateaus, hills and valleys. The soils are generally grey and light, characterized by low fertility status coupled with poor water retention capacity and scanty plant cover. In absence of any substantial leaching of minerals from ...
Review Notes
... the bird’s beaks changed in order to allow them to successfully survive. This was through natural selection. Sharp, probing bill of an insect eater but this one Whereas all of the finches on the islands originally were uses cactus spine as a tool seed eaters, they slowly adapted to other food source ...
... the bird’s beaks changed in order to allow them to successfully survive. This was through natural selection. Sharp, probing bill of an insect eater but this one Whereas all of the finches on the islands originally were uses cactus spine as a tool seed eaters, they slowly adapted to other food source ...
WHY BRITISH COLUMBIA NEEDS AN ENDANGERED SPECIES LAW
... automatic protection under SARA, even if they are listed. For instance, in the case of birds listed under the MBCA, once critical habitat is identified in a recovery plan under SARA, the prohibition against destruction of critical habitat only applies at the federal government’s discretion or “provi ...
... automatic protection under SARA, even if they are listed. For instance, in the case of birds listed under the MBCA, once critical habitat is identified in a recovery plan under SARA, the prohibition against destruction of critical habitat only applies at the federal government’s discretion or “provi ...
Welfare of translocated endangered animals in Australia
... populations were decimated by a catastrophic event. Following a number of these translocations, some of which were successful and others not, a wealth of knowledge and experience was gained. In 2000 this culminated with guidelines being agreed to by the Australian and New Zealand Environment and Con ...
... populations were decimated by a catastrophic event. Following a number of these translocations, some of which were successful and others not, a wealth of knowledge and experience was gained. In 2000 this culminated with guidelines being agreed to by the Australian and New Zealand Environment and Con ...
What is a Community? - Midlands State University
... Character displacementDarwin’s finches on Galapagos islands • Two species of ground finches (Geospiza) occurring together on the larger , differ in body size and beak proportions • On some smaller one or the other species may occur alone , in which case each species is almost exactly intermediate i ...
... Character displacementDarwin’s finches on Galapagos islands • Two species of ground finches (Geospiza) occurring together on the larger , differ in body size and beak proportions • On some smaller one or the other species may occur alone , in which case each species is almost exactly intermediate i ...
Lab 4 - Temporal Patterns in Plant Communities
... However, a disturbance will enhance their growth. We could decipher the recent history of a stand by using tree rings. We could take increment cores from a representative sample of the trees. From ring counts, we could then uncover which species colonized the site first, which species invaded later, ...
... However, a disturbance will enhance their growth. We could decipher the recent history of a stand by using tree rings. We could take increment cores from a representative sample of the trees. From ring counts, we could then uncover which species colonized the site first, which species invaded later, ...
Kangaroos and their kin
... and genera have been difficult to determine. Many are highly variable, with different colours and patterns in their fur. In the past, numerous varieties or subspecies have been mistaken for distinct species. ...
... and genera have been difficult to determine. Many are highly variable, with different colours and patterns in their fur. In the past, numerous varieties or subspecies have been mistaken for distinct species. ...
Management Options for Abandoned Farm Fields
... conversion of an old field to woodland. For example, if there are several large woodlands near you but connecting these is impossible, it may be wiser to leave the field alone. Furthermore, if forest cover is greater than 30 percent in your township and it includes mast species, planting trees may n ...
... conversion of an old field to woodland. For example, if there are several large woodlands near you but connecting these is impossible, it may be wiser to leave the field alone. Furthermore, if forest cover is greater than 30 percent in your township and it includes mast species, planting trees may n ...
Pest Bird Management Policy
... cocky examples illustrate that human perceptions and values must be taken into account in defining, identifying and managing pest birds and their impacts. The issue is further complicated by the perception that some listed threatened species can sometimes act as pests. For example, Baudin's Black-Co ...
... cocky examples illustrate that human perceptions and values must be taken into account in defining, identifying and managing pest birds and their impacts. The issue is further complicated by the perception that some listed threatened species can sometimes act as pests. For example, Baudin's Black-Co ...
AP Biology End of Chapter Questions-Campbell 2011
... A) two species cannot coexist in the same habitat. B) competition between two species always causes extinction or emigration of one species. C) competition in a population promotes survival of the best-adapted individuals. D) two species that have exactly the same niche cannot coexist in a community ...
... A) two species cannot coexist in the same habitat. B) competition between two species always causes extinction or emigration of one species. C) competition in a population promotes survival of the best-adapted individuals. D) two species that have exactly the same niche cannot coexist in a community ...
The relationship between forest biodiversity, ecosystem
... • Most primary forest ecosystems are resilient to natural disturbances; many are also resistant • Loss of biodiversity may alter the forest resilience and will result in reduced goods and services (e.g., carbon storage • Loss of resilience means uncertainty about future forest condition ...
... • Most primary forest ecosystems are resilient to natural disturbances; many are also resistant • Loss of biodiversity may alter the forest resilience and will result in reduced goods and services (e.g., carbon storage • Loss of resilience means uncertainty about future forest condition ...
Contemporary perspectives on the niche that can improve models of
... on the distribution and relevant environmental variables are available. They offer useful and necessary first approximations for distribution modelling at coarse scales. The accuracy of correlative predictions for future distributions, however, hinges on the constancy of the correlations on which th ...
... on the distribution and relevant environmental variables are available. They offer useful and necessary first approximations for distribution modelling at coarse scales. The accuracy of correlative predictions for future distributions, however, hinges on the constancy of the correlations on which th ...
Which statement best describes the relationship between free
... 2.3 D: Free Energy of Ecosystems Quiz ...
... 2.3 D: Free Energy of Ecosystems Quiz ...
doc_207 - mar athanasius college
... The phenomenon of restricted distribution of a species associated with some ecological factors is called endemism. A taxon whose distribution is confined to a small area and associated with particular habitat conditions is called endemics. The endemic species are far more vulnerable to extinction th ...
... The phenomenon of restricted distribution of a species associated with some ecological factors is called endemism. A taxon whose distribution is confined to a small area and associated with particular habitat conditions is called endemics. The endemic species are far more vulnerable to extinction th ...
Keystone species: Ecology
... • THE JAGUAR, WHOSE NUMBERS IN CENTRAL AND SOUTH AMERICA HAVE BEEN CLASSIFIED AS NEAR THREATENED, ACTS AS A KEYSTONE PREDATOR BY ITS WIDELY VARIED DIET, HELPING TO BALANCE THE MAMMALIAN JUNGLE ECOSYSTEM WITH ITS CONSUMPTION OF 87 DIFFERENT SPECIES OF PREY. • ANY MAMMAL THAT BEGINS TO THRIVE BECOMES ...
... • THE JAGUAR, WHOSE NUMBERS IN CENTRAL AND SOUTH AMERICA HAVE BEEN CLASSIFIED AS NEAR THREATENED, ACTS AS A KEYSTONE PREDATOR BY ITS WIDELY VARIED DIET, HELPING TO BALANCE THE MAMMALIAN JUNGLE ECOSYSTEM WITH ITS CONSUMPTION OF 87 DIFFERENT SPECIES OF PREY. • ANY MAMMAL THAT BEGINS TO THRIVE BECOMES ...
Dispersal and Immigration
... • History of area may have allowed passage and distributions seen today • Freshwater lake fishes – only found in multiple locations if lakes were connected at one time • Some lakes are fishless – not because of tolerance • Marine fish vs. freshwater fish ...
... • History of area may have allowed passage and distributions seen today • Freshwater lake fishes – only found in multiple locations if lakes were connected at one time • Some lakes are fishless – not because of tolerance • Marine fish vs. freshwater fish ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.