Does biodiversity always increase the stability of eco
... seems to be the best indicator of stability, but it tends to saturate, i.e. the effect is much stronger with fewer species added to the site. This tends to be a difference compared to grasslands, where increased short-term compensatory reactions take place. Forests already are much more decoupled fr ...
... seems to be the best indicator of stability, but it tends to saturate, i.e. the effect is much stronger with fewer species added to the site. This tends to be a difference compared to grasslands, where increased short-term compensatory reactions take place. Forests already are much more decoupled fr ...
does metabolic theory apply to community ecology? it`s a matter of
... Might growth rate (McMahon and Bonner 1983) be the controlling variable, rather than metabolic rate? Or might body size and metabolism be easily measured surrogates of the actual traits that determine species interactions and abundances? After all, within the framework of community ecology, it is tr ...
... Might growth rate (McMahon and Bonner 1983) be the controlling variable, rather than metabolic rate? Or might body size and metabolism be easily measured surrogates of the actual traits that determine species interactions and abundances? After all, within the framework of community ecology, it is tr ...
Week 12
... Lecture 12.2. Evolution of virulence, cospeciation 17. Describe the original conditions of the experiment by Jeon with amoebae and bacteria 18. Explain details of experiments they used to examine responses of host and symbiont to one another after several years of association 19. Use their experime ...
... Lecture 12.2. Evolution of virulence, cospeciation 17. Describe the original conditions of the experiment by Jeon with amoebae and bacteria 18. Explain details of experiments they used to examine responses of host and symbiont to one another after several years of association 19. Use their experime ...
File S1.
... and birds [3, 4]. Previous field observations confirmed that ants readily found seeds of the ...
... and birds [3, 4]. Previous field observations confirmed that ants readily found seeds of the ...
BOUNTIFUL BRAZIL
... March 200,000 images will be freely available online. Supported by the Reflora programme, more than 100 Brazilian researchers and students have been to Kew on study visits and have since authored over 170 scientific papers, many in close collaboration with Kew staff. More than 100 species new to sci ...
... March 200,000 images will be freely available online. Supported by the Reflora programme, more than 100 Brazilian researchers and students have been to Kew on study visits and have since authored over 170 scientific papers, many in close collaboration with Kew staff. More than 100 species new to sci ...
Variation Lesson
... take place in a grassy recreational area of the school campus. Beforehand, instructors spread the jellybeans in a marked area of at least 15m X 15m. Game itself should not take more than 45 minutes. This includes rules, prey collection, and data calculation. However, results and discussion questions ...
... take place in a grassy recreational area of the school campus. Beforehand, instructors spread the jellybeans in a marked area of at least 15m X 15m. Game itself should not take more than 45 minutes. This includes rules, prey collection, and data calculation. However, results and discussion questions ...
Are fish introductions a threat to endemic freshwater fishes
... In undisturbed fish populations, competition is rarely observed since it is avoided by character displacements or niche shifts by the species present. When a species is introduced into one of these undisturbed fish populations, the situation is different because the species present have not co-evolv ...
... In undisturbed fish populations, competition is rarely observed since it is avoided by character displacements or niche shifts by the species present. When a species is introduced into one of these undisturbed fish populations, the situation is different because the species present have not co-evolv ...
Securing the future for ASiA`S Stunning KArSt ecoSyStemS
... nest soup’ – indeed, weight for weight their nests are more valuable than gold. Bats can also have major importance as both important pollinators of various commercial tree crops (especially the famous durian) and major predators on damaging or dangerous insects. The limestone vegetation of the hill ...
... nest soup’ – indeed, weight for weight their nests are more valuable than gold. Bats can also have major importance as both important pollinators of various commercial tree crops (especially the famous durian) and major predators on damaging or dangerous insects. The limestone vegetation of the hill ...
Glossary - Minnesota DNR
... Ecosystem: A spatially explicit, relatively homogenous unit of the earth that includes all interacting organisms and components of the biotic environment within its boundaries. An ecosystem can be of any size, such as a log, pond, field, forest or the earth’s biosphere.(The Dictionary of Forestry, S ...
... Ecosystem: A spatially explicit, relatively homogenous unit of the earth that includes all interacting organisms and components of the biotic environment within its boundaries. An ecosystem can be of any size, such as a log, pond, field, forest or the earth’s biosphere.(The Dictionary of Forestry, S ...
Evolutionarily stable range limits set by interspecific competition
... In extreme cases, it is easy to see how an evolutionarily stable limit can be set by a lack of resources, even in the absence of competition. Continuing with the finch–seed example, it may be impossible for small finches to consume large seeds, because no individuals in the population are able to cr ...
... In extreme cases, it is easy to see how an evolutionarily stable limit can be set by a lack of resources, even in the absence of competition. Continuing with the finch–seed example, it may be impossible for small finches to consume large seeds, because no individuals in the population are able to cr ...
PRINCIPLES OF BIOLOGY: LECTURES 3 and 4
... Name the two suborders of the Order Cetacea, and describe the major difference between them. Be able to provide examples for each group. ...
... Name the two suborders of the Order Cetacea, and describe the major difference between them. Be able to provide examples for each group. ...
AN AGENDA FOR INVASION BIOLOGY
... concentrated on the attributes of weedy (or opportunistic) species (see e.g. Lewontin, 1965). Such studies usually did not compare weeds with non-weeds, or even weeds with other species whose characteristics appear similar but whose populations have not spread. It may well be that invaders as a grou ...
... concentrated on the attributes of weedy (or opportunistic) species (see e.g. Lewontin, 1965). Such studies usually did not compare weeds with non-weeds, or even weeds with other species whose characteristics appear similar but whose populations have not spread. It may well be that invaders as a grou ...
File
... Early successional plant species - grow close to the ground; help break up rock and make more soil Midsuccessional plant species - herbs, grasses and low shrubs Late successional plant species – trees If primary succession starts on land it is a xerosphere If it starts in water (a pond) it ...
... Early successional plant species - grow close to the ground; help break up rock and make more soil Midsuccessional plant species - herbs, grasses and low shrubs Late successional plant species – trees If primary succession starts on land it is a xerosphere If it starts in water (a pond) it ...
F
... magazine, spring 2010). Experts estimate that 270,000 plant species exist on Earth. However, with some 2,000 new species being uncovered every year, we are far from knowing the exact figure. ‘Biodiversity is important because there’s simply so much we don’t know about it,’ says Bill Baker, head of K ...
... magazine, spring 2010). Experts estimate that 270,000 plant species exist on Earth. However, with some 2,000 new species being uncovered every year, we are far from knowing the exact figure. ‘Biodiversity is important because there’s simply so much we don’t know about it,’ says Bill Baker, head of K ...
Bizarre structures in dinosaurs: species recognition or sexual
... with which it last shared a common ancestor more than 5 million years prior. Depending on the primary mode of macroevolutionary change (cladogenetic vs. anagenetic), it is certainly conceivable, perhaps even likely, that sister taxa within these clades (e.g. C. apertus and Styracosaurus albertensis ...
... with which it last shared a common ancestor more than 5 million years prior. Depending on the primary mode of macroevolutionary change (cladogenetic vs. anagenetic), it is certainly conceivable, perhaps even likely, that sister taxa within these clades (e.g. C. apertus and Styracosaurus albertensis ...
woody debris in a mixed-oak forest of southern
... Hypnum imponens is a distinctive, relatively large pleurocarp that often covers logs. It is pinnate, and its shiny tapered leaves are swept to opposite sides of the branches (secund). Three other Hypnum species were also found in this study. ...
... Hypnum imponens is a distinctive, relatively large pleurocarp that often covers logs. It is pinnate, and its shiny tapered leaves are swept to opposite sides of the branches (secund). Three other Hypnum species were also found in this study. ...
Foraging Ecology
... 1) Describe the three key components of the predation process and how they affect the functional response of a predator. Predation involves the following general components: search, attack, and handling time. The functional response is the function that describes the relationship between a predator’ ...
... 1) Describe the three key components of the predation process and how they affect the functional response of a predator. Predation involves the following general components: search, attack, and handling time. The functional response is the function that describes the relationship between a predator’ ...
Vasco Lepori
... increasing mortality, although there are examples of high mortality induced by extreme weather events (Gaston 2003). Range equilibrium, and the vital rate determining the range limit, can be tested through beyond-range transplant experiments. Hargreaves et al. (2014) found that in 75% of the cases, ...
... increasing mortality, although there are examples of high mortality induced by extreme weather events (Gaston 2003). Range equilibrium, and the vital rate determining the range limit, can be tested through beyond-range transplant experiments. Hargreaves et al. (2014) found that in 75% of the cases, ...
Eco-Green System in Sai Tso Wan Landfill
... grow and develop; however, for shrubs, the amount was not adequate for their growth. Thus, the application of Eco-bag provides more nutrients and support for the shrubs planted to enlarge the greening effect on the closed landfill. Most importantly, shrubs have flowering and fruiting periods once ma ...
... grow and develop; however, for shrubs, the amount was not adequate for their growth. Thus, the application of Eco-bag provides more nutrients and support for the shrubs planted to enlarge the greening effect on the closed landfill. Most importantly, shrubs have flowering and fruiting periods once ma ...
Ecosystem Impacts Assessment Framework: Objectives, sub
... information on past, present, and possible future condition of the stocks, marine ecosystems, and fisheries being managed in the stock assessment and fishery evaluation reports provided to managers. ...
... information on past, present, and possible future condition of the stocks, marine ecosystems, and fisheries being managed in the stock assessment and fishery evaluation reports provided to managers. ...
Hybrid
... color, which influences pollinator preference • Pollination that is dominated by either hummingbirds or bees can lead to reproductive isolation of the flowers • In other species, speciation can be influenced by larger numbers of genes and gene interactions ...
... color, which influences pollinator preference • Pollination that is dominated by either hummingbirds or bees can lead to reproductive isolation of the flowers • In other species, speciation can be influenced by larger numbers of genes and gene interactions ...
Gardening for Life
... nothing about the rate at which species are disappearing from our neighborhoods, towns, counties, and states. We have never been taught how vital biodiversity is for our own well-being. We Have Taken It All The population of the United States, now nearing three hundred and six million people, has do ...
... nothing about the rate at which species are disappearing from our neighborhoods, towns, counties, and states. We have never been taught how vital biodiversity is for our own well-being. We Have Taken It All The population of the United States, now nearing three hundred and six million people, has do ...
MolJuscan and crustacean hems in the diet of the loggerhead turtle
... species, study of prey items in other regions of the world have found the diet to be dominated by benthic molluscs, crustaceans and coelenterates.1 Loggerhead turtles off Australia have recently been observed 'mining' such prey items in soft sediments.4 Individuals sold in markets in Sfax, Tunisia i ...
... species, study of prey items in other regions of the world have found the diet to be dominated by benthic molluscs, crustaceans and coelenterates.1 Loggerhead turtles off Australia have recently been observed 'mining' such prey items in soft sediments.4 Individuals sold in markets in Sfax, Tunisia i ...
Ex Situ Conservation Of Wild Plant Species At Plant Gene
... Canada’s national seed bank, has expanded its program to include a component focused on Canadian wild plant species. Many populations of Canada’s approximately 3,800 wild species of vascular plants are in danger of genetic erosion, and/or local extinction. This is a consequence of: a) habitat loss, ...
... Canada’s national seed bank, has expanded its program to include a component focused on Canadian wild plant species. Many populations of Canada’s approximately 3,800 wild species of vascular plants are in danger of genetic erosion, and/or local extinction. This is a consequence of: a) habitat loss, ...
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.