Diversity and Productivity in a Long-Term Grassland Experiment David Tilman,
... occurred with lower and higher cutoffs (including 50% higher) for aboveground and total biomass. In total, the dependence of biomass on species number and composition was not explained solely by sampling effects for a species pool containing some poorly performing species. We tested the sampling hyp ...
... occurred with lower and higher cutoffs (including 50% higher) for aboveground and total biomass. In total, the dependence of biomass on species number and composition was not explained solely by sampling effects for a species pool containing some poorly performing species. We tested the sampling hyp ...
Community monopolization: local adaptation enhances priority
... Figure 1. We developed an individual-based model of community assembly in a three-patch, two-species metacommunity. (a) Two initially equivalent species with traits matching the environment fill two patches, each with 1000 microsites and an environmental value (e) of 0.4 (symbolized in yellow). A th ...
... Figure 1. We developed an individual-based model of community assembly in a three-patch, two-species metacommunity. (a) Two initially equivalent species with traits matching the environment fill two patches, each with 1000 microsites and an environmental value (e) of 0.4 (symbolized in yellow). A th ...
Community monopolization: local adaptation enhances priority
... Figure 1. We developed an individual-based model of community assembly in a three-patch, two-species metacommunity. (a) Two initially equivalent species with traits matching the environment fill two patches, each with 1000 microsites and an environmental value (e) of 0.4 (symbolized in yellow). A th ...
... Figure 1. We developed an individual-based model of community assembly in a three-patch, two-species metacommunity. (a) Two initially equivalent species with traits matching the environment fill two patches, each with 1000 microsites and an environmental value (e) of 0.4 (symbolized in yellow). A th ...
Principles of population viability analysis (PVA)
... change over the simulation period, predicted changes in K over the simulation period. The result that is most highly emphasized depends on the purpose of the model and the extinction risk status of the species in question. It has been demonstrated that the expected minimum population size (EMP, also ...
... change over the simulation period, predicted changes in K over the simulation period. The result that is most highly emphasized depends on the purpose of the model and the extinction risk status of the species in question. It has been demonstrated that the expected minimum population size (EMP, also ...
Temporal variations in abundance and species composition
... young stages of various marine species have developed the ability to use the intertidal zone during high tide (Gibson, 1973; Van der Veer and Bergman, 1987; Beyst, Buysse et al., 2001). ‘Intertidal species’, as opposed to ‘subtidal’ or ‘shore species’, are defined as species, which utilized the inte ...
... young stages of various marine species have developed the ability to use the intertidal zone during high tide (Gibson, 1973; Van der Veer and Bergman, 1987; Beyst, Buysse et al., 2001). ‘Intertidal species’, as opposed to ‘subtidal’ or ‘shore species’, are defined as species, which utilized the inte ...
Draft Threatened Species Strategy
... This Threatened Species Strategy sets out the New Zealand Government’s plan to halt the decline in our threatened species and restore them to healthy populations. Building on existing commitments and programmes, the Strategy identifies further steps we need to take not only to restore those species ...
... This Threatened Species Strategy sets out the New Zealand Government’s plan to halt the decline in our threatened species and restore them to healthy populations. Building on existing commitments and programmes, the Strategy identifies further steps we need to take not only to restore those species ...
Chapter 3 Environment: The Science behind the Stories 4th Edition
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
... Each organism has habitat needs • Habitat = the environment where an organism lives - It includes living and nonliving elements • Habitat use = each organism thrives in certain habitats, but not in others - Results in nonrandom patterns of use • Habitat selection = the process by which organisms ac ...
Diversity of predator of paddy plant pests on paddy field that
... From the table can be seen the contrast between the total number of individual predators those managed in an IPM with nonIPM. The number of families and the species of predators, IPM relatively higher than those non IPM systems. It is suspected because in paddy IPM farmers have reduced application c ...
... From the table can be seen the contrast between the total number of individual predators those managed in an IPM with nonIPM. The number of families and the species of predators, IPM relatively higher than those non IPM systems. It is suspected because in paddy IPM farmers have reduced application c ...
Safeguarding Species - a strategy for species recovery
... The RSPB’s work is driven by a passionate belief that we all have a responsibility to protect birds and the environment. Bird populations reflect the health of the planet on which our future depends. Today, all too many bird species are in serious decline. Globally, in the last 30 years, 21 species ...
... The RSPB’s work is driven by a passionate belief that we all have a responsibility to protect birds and the environment. Bird populations reflect the health of the planet on which our future depends. Today, all too many bird species are in serious decline. Globally, in the last 30 years, 21 species ...
1 - Fort Lewis College
... will sign up for the article the first week of class. This summary presentation will lead into a discussion of the article facilitated by the same student presenting the summary presentation. You will be required to email your classmates with a list of questions a week before your presentation and d ...
... will sign up for the article the first week of class. This summary presentation will lead into a discussion of the article facilitated by the same student presenting the summary presentation. You will be required to email your classmates with a list of questions a week before your presentation and d ...
Organophosphates
... the distance between the esteratic and anionic sites of ACh differs from insect to vertebrate. On the other hand, if one tests vertebrates in vivo, structure-activity relationships are not nearly so tidy as in insects. To a considerable extent this is due to differences in absorption, transport and ...
... the distance between the esteratic and anionic sites of ACh differs from insect to vertebrate. On the other hand, if one tests vertebrates in vivo, structure-activity relationships are not nearly so tidy as in insects. To a considerable extent this is due to differences in absorption, transport and ...
Appendix 3-5 Shiels Army annual report June 2007
... as at least 25% of total fruit was removed after 5 d and 45% was removed after 25 d (Figure 3). Compared to the highly attractive Pritchardia fruits that were used in similar trials at Lyon Arboretum (wet forest), the two species used at KHI were removed less rapidly (Figure 3). All four species are ...
... as at least 25% of total fruit was removed after 5 d and 45% was removed after 25 d (Figure 3). Compared to the highly attractive Pritchardia fruits that were used in similar trials at Lyon Arboretum (wet forest), the two species used at KHI were removed less rapidly (Figure 3). All four species are ...
Bandicoots and introduced predators
... Cats are known to prey on bandicoots. Suitable feral cat control may be required in areas known to be occupied by Southern Brown Bandicoots. As feral cat abundance may increase following the control of foxes in an area, an integrated pest control program should be adopted. While feral and stray cats ...
... Cats are known to prey on bandicoots. Suitable feral cat control may be required in areas known to be occupied by Southern Brown Bandicoots. As feral cat abundance may increase following the control of foxes in an area, an integrated pest control program should be adopted. While feral and stray cats ...
Community Ecology
... within a figure represents a combination of abundances of species 1 and 2. The graphs can then be used to determine which species would win in competition. Recall that this is an upper-division/graduate level ecology course–if you don’t know what logistic growth is, or r, or K, or dN/dt, then you ne ...
... within a figure represents a combination of abundances of species 1 and 2. The graphs can then be used to determine which species would win in competition. Recall that this is an upper-division/graduate level ecology course–if you don’t know what logistic growth is, or r, or K, or dN/dt, then you ne ...
Persistent negative effects of pesticides on biodiversity and
... components, such as loss of landscape elements, enlarged farm and field sizes and larger inputs of fertilizer and pesticides. However, very little is known about the relative contribution of these variables to the large-scale negative effects on biodiversity. In this study, we disentangled the impact ...
... components, such as loss of landscape elements, enlarged farm and field sizes and larger inputs of fertilizer and pesticides. However, very little is known about the relative contribution of these variables to the large-scale negative effects on biodiversity. In this study, we disentangled the impact ...
Effects of an Arctic Fox Visit to a Low Arctic Seabird Colony
... in Indian Gulch were in the mid to late stages of chickrearing, which was consistent with the timing of breeding observed at Funk Island in previous years. Information from the 1972 and 2000 aerial surveys indicates that the murre population at Funk Island has remained relatively stable (389 097 in ...
... in Indian Gulch were in the mid to late stages of chickrearing, which was consistent with the timing of breeding observed at Funk Island in previous years. Information from the 1972 and 2000 aerial surveys indicates that the murre population at Funk Island has remained relatively stable (389 097 in ...
cockpit country biodiversity manual
... Amphibians and reptiles of the Cockpit Country have evolved some very remarkable ecological and behavioral strategies. Frogs of the species Eleutherodactylus cundalli use the Windsor Great Cave for breeding. Sitting in complete darkness, males call to attract females. After copulation, females depos ...
... Amphibians and reptiles of the Cockpit Country have evolved some very remarkable ecological and behavioral strategies. Frogs of the species Eleutherodactylus cundalli use the Windsor Great Cave for breeding. Sitting in complete darkness, males call to attract females. After copulation, females depos ...
SHALOM: a landscape simulation model for understanding animal
... each has a resource-proportion of 0.5). A patch is the area composed of all adjacent cells sharing a habitat type where the local-scale processes take place. Individuals of a species in one patch (population) interact among themselves independently of individuals in adjacent patches. Dispersal may ...
... each has a resource-proportion of 0.5). A patch is the area composed of all adjacent cells sharing a habitat type where the local-scale processes take place. Individuals of a species in one patch (population) interact among themselves independently of individuals in adjacent patches. Dispersal may ...
Biodiversity,Conservation of Biodiversity,Types,Value,Biodiversity
... uncontrolled hybridization and gene swamping. Over exploitation is caused by activities such as over fishing, over hunting, excessive logging and illegal trade of wild life. Thus we can see that biodiversity which is crucial for the well being life on Earth, is coming under the threat of many factor ...
... uncontrolled hybridization and gene swamping. Over exploitation is caused by activities such as over fishing, over hunting, excessive logging and illegal trade of wild life. Thus we can see that biodiversity which is crucial for the well being life on Earth, is coming under the threat of many factor ...
Food Habits of Four Armadillo Species in the Cerrado Area, Mato
... Teresa Cristina da Silveira Anacleto (2007) Food habits of four armadillo species in the Cerrado area, Mato Grosso, Brazil. Zoological Studies 46(4): 529-537. Studies based on scatology can substantially improve our knowledge of armadillo ecology. This study describes the food habits of armadillo sp ...
... Teresa Cristina da Silveira Anacleto (2007) Food habits of four armadillo species in the Cerrado area, Mato Grosso, Brazil. Zoological Studies 46(4): 529-537. Studies based on scatology can substantially improve our knowledge of armadillo ecology. This study describes the food habits of armadillo sp ...
Chapter 25 - Animal Demography Unit
... extinction of the Shark Island colony. It is likely that these birds now breed at Penguin or Seal Island, but annual counts at these two harbour islands take place when Hartlaub’s Gulls do not breed. In addition, recent breeding population estimates for localities north of Mercury Island are lacking ...
... extinction of the Shark Island colony. It is likely that these birds now breed at Penguin or Seal Island, but annual counts at these two harbour islands take place when Hartlaub’s Gulls do not breed. In addition, recent breeding population estimates for localities north of Mercury Island are lacking ...
Ch21_Clicker_Questions - Saint Leo University Faculty
... Commensalism is a form of symbiosis that benefits one species of an interaction while having no effect on the other. Mutualism benefits both species. Parasitism benefits one species at the expense of the other. © 2013 Pearson Education, Inc. ...
... Commensalism is a form of symbiosis that benefits one species of an interaction while having no effect on the other. Mutualism benefits both species. Parasitism benefits one species at the expense of the other. © 2013 Pearson Education, Inc. ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.