Aphid and ladybird beetle abundance depend on the interaction of
... 3, 6, and 12 genotype polycultures. The genotypic composition of polyculture plots was determined by a random assignment of genotypes to plots, with the stipulation that no two polyculture plots could have exactly the same constituent genotypes. Heavy plastic lined the edges of each plot to a depth ...
... 3, 6, and 12 genotype polycultures. The genotypic composition of polyculture plots was determined by a random assignment of genotypes to plots, with the stipulation that no two polyculture plots could have exactly the same constituent genotypes. Heavy plastic lined the edges of each plot to a depth ...
Phylogenetic diversity of plants alters the effect of species
... variety of nutritional resources for generalist herbivores, which may prefer to eat in diverse patches, and may thrive more in them too (Unsicker et al., 2008; Schuldt & Baruffol, 2010). I will refer to this idea as the Dietary Mixing Hypothesis (after Bernays et al., 1994). Unfortunately, previous ...
... variety of nutritional resources for generalist herbivores, which may prefer to eat in diverse patches, and may thrive more in them too (Unsicker et al., 2008; Schuldt & Baruffol, 2010). I will refer to this idea as the Dietary Mixing Hypothesis (after Bernays et al., 1994). Unfortunately, previous ...
Conservation Planning And Research Program Report 2011–13
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
Conservation Planning And Research Program Report 2011–13
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
... Canberra. • Conservation advice for policy, land management and planning – provide information for planning, policy and management programs for the protection of the ACT’s terrestrial and aquatic ecosystems and ensuring it is based on sound scientific information, research, regulation and licensing ...
Synchronous dynamics of zooplankton competitors
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
Discoveries of new mammal species and their
... morphologically distinct species found in previously poorly surveyed areas. The second, the result of using molecular genetic techniques, was discoveries that the geographic range of a well-known organism was actually the combined ranges of two or more cryptic species—one’s not easily recognized by ...
... morphologically distinct species found in previously poorly surveyed areas. The second, the result of using molecular genetic techniques, was discoveries that the geographic range of a well-known organism was actually the combined ranges of two or more cryptic species—one’s not easily recognized by ...
Carrying capacity of large African predators
... and Stuart (2000) (see Appendix). Several studies were excluded because they were from extremely different habitat types, such as Afromontane forest (Sillero-Zubiri and Gottelli, 1992) and/or produced outlying results when plotted alongside other studies at that site at similar times (Dunham, 1992, ...
... and Stuart (2000) (see Appendix). Several studies were excluded because they were from extremely different habitat types, such as Afromontane forest (Sillero-Zubiri and Gottelli, 1992) and/or produced outlying results when plotted alongside other studies at that site at similar times (Dunham, 1992, ...
Exploring the Lotka-Volterra Competition Model using Two Species
... can be direct or indirect (i.e., mediated through other species). In even a simple natural community, hundreds of different species of plants and animals interact with one another. In spite of this diversity, however, we can identify categories of interactions that have different effects on populati ...
... can be direct or indirect (i.e., mediated through other species). In even a simple natural community, hundreds of different species of plants and animals interact with one another. In spite of this diversity, however, we can identify categories of interactions that have different effects on populati ...
Address
... were conducted within the nonnative range of Chromolaena odorata (L.) R. M. King and H. Robinson at the Xishuangbanna Tropical Botanical Garden (21°560′ N, 101°150′ E; 570 m altitude) of the Chinese Academy of Sciences located in Mengla County, Yunnan Province, southwest China. An outdoor common gar ...
... were conducted within the nonnative range of Chromolaena odorata (L.) R. M. King and H. Robinson at the Xishuangbanna Tropical Botanical Garden (21°560′ N, 101°150′ E; 570 m altitude) of the Chinese Academy of Sciences located in Mengla County, Yunnan Province, southwest China. An outdoor common gar ...
Author`s personal copy
... and Stuart (2000) (see Appendix). Several studies were excluded because they were from extremely different habitat types, such as Afromontane forest (Sillero-Zubiri and Gottelli, 1992) and/or produced outlying results when plotted alongside other studies at that site at similar times (Dunham, 1992, ...
... and Stuart (2000) (see Appendix). Several studies were excluded because they were from extremely different habitat types, such as Afromontane forest (Sillero-Zubiri and Gottelli, 1992) and/or produced outlying results when plotted alongside other studies at that site at similar times (Dunham, 1992, ...
Functional over-redundancy and high functional vulnerability in
... in the Central Indo-Pacific whereas 180 FEs (out of 468) are represented by just one species (Fig. 3). FOR was calculated as the percentage of species that fill FEs above the mean level of functional redundancy (Materials and Methods). Surprisingly, the level of FOR remains in a narrow range (37−58% ...
... in the Central Indo-Pacific whereas 180 FEs (out of 468) are represented by just one species (Fig. 3). FOR was calculated as the percentage of species that fill FEs above the mean level of functional redundancy (Materials and Methods). Surprisingly, the level of FOR remains in a narrow range (37−58% ...
Phytobenthic communities in the Baltic Sea succession
... study showed that the succession in the Askö area was influenced by the life history of the different species, interspecific competition and abiotic factors. However, the final community structures were determined mainly by the abiotic factors, such as depth, and reached after 2-5 years. The succes ...
... study showed that the succession in the Askö area was influenced by the life history of the different species, interspecific competition and abiotic factors. However, the final community structures were determined mainly by the abiotic factors, such as depth, and reached after 2-5 years. The succes ...
Synchronous dynamics of zooplankton competitors prevail in
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
A Dynamical Systems Approach to Modeling Plankton Food Web
... systems involving a resource, a prey (phytoplankton), and predators (zooplankton) in order to understand the complex interactions between these constituents. It is important to study these food chains, because phytoplankton contribute to numerous biogeochemical processes in nature. They control wate ...
... systems involving a resource, a prey (phytoplankton), and predators (zooplankton) in order to understand the complex interactions between these constituents. It is important to study these food chains, because phytoplankton contribute to numerous biogeochemical processes in nature. They control wate ...
TISSIER-THESIS - eCommons@USASK
... exposed to varying levels of disturbance. The island is exposed to extreme weather events throughout the year, and this plays an important role in dune succession; however, the vegetation dynamics of this ecosystem are poorly understood. I investigated plant community responses to natural disturbanc ...
... exposed to varying levels of disturbance. The island is exposed to extreme weather events throughout the year, and this plays an important role in dune succession; however, the vegetation dynamics of this ecosystem are poorly understood. I investigated plant community responses to natural disturbanc ...
Enhancing management effectiveness of invasive
... Allgeier, 2012). One estimate of home range from an estuarine study in Florida suggests that lionfish have an average range of only 28 m over an extended period of time (Jud and Layman, 2012), with limited movements across open spaces between habitat patches. It is suspected that movement across cont ...
... Allgeier, 2012). One estimate of home range from an estuarine study in Florida suggests that lionfish have an average range of only 28 m over an extended period of time (Jud and Layman, 2012), with limited movements across open spaces between habitat patches. It is suspected that movement across cont ...
Legacy of top-down herbivore pressure ricochets back up multiple
... density treatment were larger than those in other treatments, we also analyzed trends in abundance for only birds observed within 30 m of the census location. Due to fewer detections in this subset, results were non-significant (P . 0.05), but qualitatively similar to those for all birds within each ...
... density treatment were larger than those in other treatments, we also analyzed trends in abundance for only birds observed within 30 m of the census location. Due to fewer detections in this subset, results were non-significant (P . 0.05), but qualitatively similar to those for all birds within each ...
The Community Builder: Beaver`s Role in the Ecological Community
... Beaver build dams across low order streams to pond water, which provides deep water refuges for protection from predators, extends foraging areas and territories, and allows for food storage during winter (Baker and Hill, 2003). They construct their dens in the form of lodges made of sticks, twigs, ...
... Beaver build dams across low order streams to pond water, which provides deep water refuges for protection from predators, extends foraging areas and territories, and allows for food storage during winter (Baker and Hill, 2003). They construct their dens in the form of lodges made of sticks, twigs, ...
Nasua nasua - CIRCABC
... months of the year most appropriate for establishment? 1.9. How likely is the organism to be able to transfer from the pathway to a suitable habitat or host? ...
... months of the year most appropriate for establishment? 1.9. How likely is the organism to be able to transfer from the pathway to a suitable habitat or host? ...
Alberta Invasive Alien Species Management Framework
... The management of invasive species also requires the expertise and support of other departments, organizations and agencies without direct linkages to managing land use. For example, Alberta Culture and Community Spirit provide taxonomic expertise and specimen archives through the provincial network ...
... The management of invasive species also requires the expertise and support of other departments, organizations and agencies without direct linkages to managing land use. For example, Alberta Culture and Community Spirit provide taxonomic expertise and specimen archives through the provincial network ...
Settlement, growth and structure of three marine
... This may be a natural change in larval behaviour as the time for settlement approaches or in some cases the physical factors of high light intensity, increased temperature and reduced salinity may promote the change (Thorson, 1964). ...
... This may be a natural change in larval behaviour as the time for settlement approaches or in some cases the physical factors of high light intensity, increased temperature and reduced salinity may promote the change (Thorson, 1964). ...
PDF, 704KB - Conservation Biology
... shelter against predators is more important than the availability of food because hares prefer habitat types that offer security from predators over habitat types that offer high-quality food (Hik 1995; Wolff 1980). Yet, this use pattern can be expected to vary seasonally, as the relative costs (low ...
... shelter against predators is more important than the availability of food because hares prefer habitat types that offer security from predators over habitat types that offer high-quality food (Hik 1995; Wolff 1980). Yet, this use pattern can be expected to vary seasonally, as the relative costs (low ...
Coexistence under positive frequency dependence Jane Molofsky , James D. Bever
... occurring over the scale of the grid, extinction resulted in 100% of the cases within 15 generations. Clearly the process of clumping itself can contribute to e¡ective coexistence over relatively long periods, even if bands do not form. By 10 000 generations, the cases of positive frequency dependen ...
... occurring over the scale of the grid, extinction resulted in 100% of the cases within 15 generations. Clearly the process of clumping itself can contribute to e¡ective coexistence over relatively long periods, even if bands do not form. By 10 000 generations, the cases of positive frequency dependen ...
Burrowing Habits, Selections, and Behaviors of Four Common
... Terrestrial Crabs of Dominica are poorly understood creatures. They spend the majority of their lives in dens and burrows underground. Their main periods of activity are at night, often leaving their burrows only on nights following heavy rains. The narrow windows of time when they can be observed i ...
... Terrestrial Crabs of Dominica are poorly understood creatures. They spend the majority of their lives in dens and burrows underground. Their main periods of activity are at night, often leaving their burrows only on nights following heavy rains. The narrow windows of time when they can be observed i ...
Title Variation in Low Intertidal Communities: Submerged vs
... amphipods and isopods was found to vary at different tidal levels and different times during the tidal cycle (Ingólfsson and Agnarsson, 2003). A study carried out in the rocky intertidal zone in Ireland found a significant trend of decreasing biodiversity with increasing shore height during periods ...
... amphipods and isopods was found to vary at different tidal levels and different times during the tidal cycle (Ingólfsson and Agnarsson, 2003). A study carried out in the rocky intertidal zone in Ireland found a significant trend of decreasing biodiversity with increasing shore height during periods ...