Stability and complexity : a reappraisal of the Competitive Exclusion
... communities, he suggests that islands may be vulnerable to invasions because it is "simply ...
... communities, he suggests that islands may be vulnerable to invasions because it is "simply ...
Clonal growth and plant species abundance - Clo-Pla
... morphology in terms of particular parameters (Klimeš and Klimešová, 1999; Tamm et al., 2001; Klimešová and de Bello, 2009). The necessary next step is to use such comparative data sets to examine the ecological role of these parameters across many species and different habitats (for similar app ...
... morphology in terms of particular parameters (Klimeš and Klimešová, 1999; Tamm et al., 2001; Klimešová and de Bello, 2009). The necessary next step is to use such comparative data sets to examine the ecological role of these parameters across many species and different habitats (for similar app ...
1 BILLING CODE 3510-22-P DEPARTMENT OF
... considers the life history of the species, habitat characteristics, availability of data, particular threats, ability to predict threats, and the reliability to forecast the effects of these threats and future events on the status of the species under consideration. Because a species may be suscept ...
... considers the life history of the species, habitat characteristics, availability of data, particular threats, ability to predict threats, and the reliability to forecast the effects of these threats and future events on the status of the species under consideration. Because a species may be suscept ...
Indirect interactions among tropical tree species through shared
... 1970) in a true graded continuum (Ali & Agrawal 2012). In tropical forests, an important part of seed and seedling mortality appears to be caused by such shared enemies which eat seeds or fruits of a whole group of tree species with similar size, texture and internal structure (Holt 1997). For examp ...
... 1970) in a true graded continuum (Ali & Agrawal 2012). In tropical forests, an important part of seed and seedling mortality appears to be caused by such shared enemies which eat seeds or fruits of a whole group of tree species with similar size, texture and internal structure (Holt 1997). For examp ...
Oh Deer! Do We Have a Problem?
... • 4 science vocabulary terms will be shown at the top of the screen. • One-at-a-time, 4 clues about one of the terms will be shown on the screen. You are to determine the term that all the clues refer to. • Record your work in your science notebook or on a google doc. • Some terms may have similar m ...
... • 4 science vocabulary terms will be shown at the top of the screen. • One-at-a-time, 4 clues about one of the terms will be shown on the screen. You are to determine the term that all the clues refer to. • Record your work in your science notebook or on a google doc. • Some terms may have similar m ...
Journal of Herpetology
... S. grairimicus individuals appear (Ortega, 1986) just when prey ahundance is starting to be the highest (Ortega and Hernandez, 1983), perhaps allowing growth at the fastest rates. The growth rates observed for younger S. gramrnicus individuals at La ~ i c h i l í a (0.390 mmiday) are higher than tho ...
... S. grairimicus individuals appear (Ortega, 1986) just when prey ahundance is starting to be the highest (Ortega and Hernandez, 1983), perhaps allowing growth at the fastest rates. The growth rates observed for younger S. gramrnicus individuals at La ~ i c h i l í a (0.390 mmiday) are higher than tho ...
Biogeography and community structure of North American
... small vertebrates (156). By virtue of their numbers, these ants harvest up to several million seeds per hectare per year (primarily from annual plants). Thus, these ants have a significant impact on energy flow and also affect the species composition and relative abundance of annual plants (20, 45, ...
... small vertebrates (156). By virtue of their numbers, these ants harvest up to several million seeds per hectare per year (primarily from annual plants). Thus, these ants have a significant impact on energy flow and also affect the species composition and relative abundance of annual plants (20, 45, ...
Population structure of long-lived macrozoobenthic species
... Hard-bottom communities: mussels size-frequency and density ...................................................................................... 5 Description of the blue mussel indicator .............................................................................................................. ...
... Hard-bottom communities: mussels size-frequency and density ...................................................................................... 5 Description of the blue mussel indicator .............................................................................................................. ...
MECHANISMS INFLUENCING THE GROWTH, REPRODUCTION
... varies with depth, latitude and water movements. Secondary factors such as salinity, oxygen and temperature shape the life-history characteristics of the organisms, while biotic interactions such as competition and predation modify the microstructure of the communities (Pearson & Rosenberg 1987). ...
... varies with depth, latitude and water movements. Secondary factors such as salinity, oxygen and temperature shape the life-history characteristics of the organisms, while biotic interactions such as competition and predation modify the microstructure of the communities (Pearson & Rosenberg 1987). ...
Are You suprised
... Distributions of invasive species are often patchy; however, the mechanisms regulating these patchy distributions are poorly understood. Organisms with short-lived larvae provide an opportunity to test whether these distributions are dispersal-limited or mediated through post-metamorphic processes. ...
... Distributions of invasive species are often patchy; however, the mechanisms regulating these patchy distributions are poorly understood. Organisms with short-lived larvae provide an opportunity to test whether these distributions are dispersal-limited or mediated through post-metamorphic processes. ...
Module 6 Ecological Principles - Members
... fauna in different parts of the Arctic. Within these major biomes, distinct plant communities form the basis of dynamic ecosystems. Biodiversity. The number of species tends to be low in the Arctic because the ecosystems are young and the environment is severe. This allows important genetic variatio ...
... fauna in different parts of the Arctic. Within these major biomes, distinct plant communities form the basis of dynamic ecosystems. Biodiversity. The number of species tends to be low in the Arctic because the ecosystems are young and the environment is severe. This allows important genetic variatio ...
Ecological effects of invasive alien insects
... biodiversity through direct interactions, e.g. a herbivore feeding on a native plant (Jenkins 2003), a predator or a parasitoid attacking a native prey or host (Boettner et al. 2000; Snyder and Evans 2006), an alien species hybridizing with a native species (Jensen et al. 2005), etc. They can also a ...
... biodiversity through direct interactions, e.g. a herbivore feeding on a native plant (Jenkins 2003), a predator or a parasitoid attacking a native prey or host (Boettner et al. 2000; Snyder and Evans 2006), an alien species hybridizing with a native species (Jensen et al. 2005), etc. They can also a ...
Study Guide for Exam 2 – Biol-1, C. Briggs, rev. SP16 Test
... 52. distinguish among producers, consumers (primary, secondary, etc.), and decomposers. 53. distinguish between competitive exclusion and resource partitioning. 54. name some ways that animals avoid predation, and plants avoid herbivory. 55. predict what would happen if a particular organism was rem ...
... 52. distinguish among producers, consumers (primary, secondary, etc.), and decomposers. 53. distinguish between competitive exclusion and resource partitioning. 54. name some ways that animals avoid predation, and plants avoid herbivory. 55. predict what would happen if a particular organism was rem ...
DOC
... 52. distinguish among producers, consumers (primary, secondary, etc.), and decomposers. 53. distinguish between competitive exclusion and resource partitioning. 54. name some ways that animals avoid predation, and plants avoid herbivory. 55. predict what would happen if a particular organism was rem ...
... 52. distinguish among producers, consumers (primary, secondary, etc.), and decomposers. 53. distinguish between competitive exclusion and resource partitioning. 54. name some ways that animals avoid predation, and plants avoid herbivory. 55. predict what would happen if a particular organism was rem ...
Density-dependent dispersal may explain the mid
... The model was inspired by the alder aphid, P. alni, since alder trees provide a relatively constant food supply, whereas aphids feeding on herbaceous hosts are more likely to be affected strongly by the food quality of their host plant. We chose this species as an example for three reasons: (1) disp ...
... The model was inspired by the alder aphid, P. alni, since alder trees provide a relatively constant food supply, whereas aphids feeding on herbaceous hosts are more likely to be affected strongly by the food quality of their host plant. We chose this species as an example for three reasons: (1) disp ...
Investigations of species richness effects on ecosystem functioning
... The value of biodiversity Diversity of life on Earth is astonishing. Although there are only 1.4-1.8 million documented species, it is believed that up to 30 million species may exist (May 1990). Consequently, we are experiencing a peak in biodiversity - never before has life been so diverse – but w ...
... The value of biodiversity Diversity of life on Earth is astonishing. Although there are only 1.4-1.8 million documented species, it is believed that up to 30 million species may exist (May 1990). Consequently, we are experiencing a peak in biodiversity - never before has life been so diverse – but w ...
Character Displacement in Giant Rhinoceros Beetles
... beetles (e.g., Hori 1982). This suggests that they are effectively differentiating the mode of resource use. This often has been interpreted as a result of natural selection for reducing interspecific competition (Grant 1972, 1981). However, whether the species differentiated as a result of interspe ...
... beetles (e.g., Hori 1982). This suggests that they are effectively differentiating the mode of resource use. This often has been interpreted as a result of natural selection for reducing interspecific competition (Grant 1972, 1981). However, whether the species differentiated as a result of interspe ...
Interspecific interaction strength influences population density more
... carrying capacity. Second, population density of a species is positively related to sum of all direct interaction strengths (net direct interaction strength, NDIS) which come from its directly connected partners, and also positively related to the net indirect interaction strength it received (net i ...
... carrying capacity. Second, population density of a species is positively related to sum of all direct interaction strengths (net direct interaction strength, NDIS) which come from its directly connected partners, and also positively related to the net indirect interaction strength it received (net i ...
Rapid human-induced divergence of life
... potentially including changes in life history, which in turn can strongly impact population ...
... potentially including changes in life history, which in turn can strongly impact population ...
Species interactions in a changing environment: elevated CO evolutionary consequences of competition
... et al., 2005; Dybzinski and Tilman, 2007). It is plausible that these ecological patterns have evolutionary analogues: that selection is stronger when plants compete with similar competitors and that resource availability affects the intensity of selection on size and other traits that mediate compe ...
... et al., 2005; Dybzinski and Tilman, 2007). It is plausible that these ecological patterns have evolutionary analogues: that selection is stronger when plants compete with similar competitors and that resource availability affects the intensity of selection on size and other traits that mediate compe ...
Biotic interactions and plant invasions
... questions, both comparisons shed light on important aspects of biological invasions. Comparison with conspecifics in their native range is useful because it is relative to these populations that invaders gain and lose interactions with enemies, mutualists and competitors. Also, the ecological and ev ...
... questions, both comparisons shed light on important aspects of biological invasions. Comparison with conspecifics in their native range is useful because it is relative to these populations that invaders gain and lose interactions with enemies, mutualists and competitors. Also, the ecological and ev ...
PDF
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
Allee effects, extinctions, and chaotic transients in simple population
... In the appendix, we show that (3) has a unique critical point C: To distinguish between the cases of bistability and essential extinction, we numerically compute bifurcation diagrams by determining the fate of the unique critical point C (see Figs. 3a and b). These diagrams show for slow growing pop ...
... In the appendix, we show that (3) has a unique critical point C: To distinguish between the cases of bistability and essential extinction, we numerically compute bifurcation diagrams by determining the fate of the unique critical point C (see Figs. 3a and b). These diagrams show for slow growing pop ...