sea urchins on the move - Integrative Biology
... both species within a single habitat suggests co-inhabitation, without one species outcompeting the other. It is possible that the two species of urchin have only recently, since Collisson’s 1995 study, moved into one another’s habitats. Perhaps in 1995 there was an environmental factor causing the ...
... both species within a single habitat suggests co-inhabitation, without one species outcompeting the other. It is possible that the two species of urchin have only recently, since Collisson’s 1995 study, moved into one another’s habitats. Perhaps in 1995 there was an environmental factor causing the ...
Is Infectious Disease Just Another Type of Predator
... Evidence from macroecology supports the hypothesis that hostparasite and predator-prey interactions are essentially similar. Macroecology (Brown 1995; Gaston and Blackburn 2000) has yielded several interrelated, large-scale patterns that apply to both sets of interactions. These patterns include rel ...
... Evidence from macroecology supports the hypothesis that hostparasite and predator-prey interactions are essentially similar. Macroecology (Brown 1995; Gaston and Blackburn 2000) has yielded several interrelated, large-scale patterns that apply to both sets of interactions. These patterns include rel ...
40 Anniversary Conference Gesellschaft für Ökologie
... forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more exciting than its official record. I am thus proud to say that the idea of establishing an ecological society as a platform for bringing together people working in the fields of enviro ...
... forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more exciting than its official record. I am thus proud to say that the idea of establishing an ecological society as a platform for bringing together people working in the fields of enviro ...
Invasive species shifts ontogenetic resource partitioning and
... Regular site visits began in June 2004, with approximately three night-time visits per week. The technique was to locate frogs using high-powered lights to spot their eyeshine, and then carefully approach them for identification. The inner perimeter of each pond was surveyed using chest-waders. When ...
... Regular site visits began in June 2004, with approximately three night-time visits per week. The technique was to locate frogs using high-powered lights to spot their eyeshine, and then carefully approach them for identification. The inner perimeter of each pond was surveyed using chest-waders. When ...
Gamebird hunting and biodiversity conservation: synthesis
... maintenance of wild populations, and it may even be detrimental in most cases. Overall, it is clear that many management practices for hunting purposes, if they are implemented within the local ecological context and adapted to conservation priorities, are beneficial to biodiversity. This is particu ...
... maintenance of wild populations, and it may even be detrimental in most cases. Overall, it is clear that many management practices for hunting purposes, if they are implemented within the local ecological context and adapted to conservation priorities, are beneficial to biodiversity. This is particu ...
Science and management of coral reefs: problems and prospects
... including rates and direction of movement of different life stages across the boundaries, as well as on human activities within the area. The high species diversity and spatial heterogeneity of reef fisheries suggest that they require different management approaches from those used in other fisherie ...
... including rates and direction of movement of different life stages across the boundaries, as well as on human activities within the area. The high species diversity and spatial heterogeneity of reef fisheries suggest that they require different management approaches from those used in other fisherie ...
Effects of disturbance by Siberian marmots (Marmota sibirica) on
... continue to use same burrows for a long time) (Yoshihara et al., unpublished), the “disturbance” here means selective foraging and burrow maintenance. Our results are not consistent with those of several studies that reported constant decrease in the spatial heterogeneity of vegetation as a result ...
... continue to use same burrows for a long time) (Yoshihara et al., unpublished), the “disturbance” here means selective foraging and burrow maintenance. Our results are not consistent with those of several studies that reported constant decrease in the spatial heterogeneity of vegetation as a result ...
Desert rodent populations: factors affecting
... growth that follow favorable rains is well established. The ultimate reason for this pattern has not been established. Competition is important as well, but predation and parasitism have received little consideration. Distribution: Patterns of distribution have been shown to correspond to temperatur ...
... growth that follow favorable rains is well established. The ultimate reason for this pattern has not been established. Competition is important as well, but predation and parasitism have received little consideration. Distribution: Patterns of distribution have been shown to correspond to temperatur ...
3 - ICFCST
... and wet climate, in particular with weakly expressed season’s differences. Such conditions are favorable for realization of species potential of invertebrate herbivores having many generations per year, and for aggressiveness of phytopathogens. Nevertheless, epiphytoties also have not been recorded ...
... and wet climate, in particular with weakly expressed season’s differences. Such conditions are favorable for realization of species potential of invertebrate herbivores having many generations per year, and for aggressiveness of phytopathogens. Nevertheless, epiphytoties also have not been recorded ...
Functional Groups of Ecosystem Engineers: A
... many publications that cite assimilatory and dissimilatory processes as ecosystem engineering, such as sediment-binding mucous exuded by microorganisms or oxygen consumption by plants (Jones et al. 1994, 1997a, 1997b; Caraco et al. 2006; Volkenborn et al. 2007). There appears to be particular confus ...
... many publications that cite assimilatory and dissimilatory processes as ecosystem engineering, such as sediment-binding mucous exuded by microorganisms or oxygen consumption by plants (Jones et al. 1994, 1997a, 1997b; Caraco et al. 2006; Volkenborn et al. 2007). There appears to be particular confus ...
Sci 8
... 5. The size of populations may change as a result of the interrelationships among organisms. These may include predator/prey ratios, availability of resources, and habitat changes. 6. In all environments organisms with similar needs may compete with one another for resources including food, water, a ...
... 5. The size of populations may change as a result of the interrelationships among organisms. These may include predator/prey ratios, availability of resources, and habitat changes. 6. In all environments organisms with similar needs may compete with one another for resources including food, water, a ...
Marine Protected Areas: A review of their use for delivering marine
... best use of marine science, sustainable fisheries, work on marine ecosystem indicators and other Government commitments set out in the UK strategy for the conservation and sustainable development of the marine environment (Defra 2002). This report illustrates and provides evidence of how existing MP ...
... best use of marine science, sustainable fisheries, work on marine ecosystem indicators and other Government commitments set out in the UK strategy for the conservation and sustainable development of the marine environment (Defra 2002). This report illustrates and provides evidence of how existing MP ...
Town Forest Health
... less direct than the testing method, but also less costly and technological, and it’s something you can implement on your own without a medical degree. In the case of forest health, you could try to directly measure the condition of your town forest—conditions like soil and water chemistry, infiltra ...
... less direct than the testing method, but also less costly and technological, and it’s something you can implement on your own without a medical degree. In the case of forest health, you could try to directly measure the condition of your town forest—conditions like soil and water chemistry, infiltra ...
Growth potential and predation risk drive ontogenetic shifts among
... abundance (growth). Individuals subsequently shifted to seagrass beds, likely as a result of increased food resources, followed by a shift to mangroves as predation refugia. Before the unidirectional movement between bays and coral reefs, some fishes shifted from mangroves to boulder/notch habitats. ...
... abundance (growth). Individuals subsequently shifted to seagrass beds, likely as a result of increased food resources, followed by a shift to mangroves as predation refugia. Before the unidirectional movement between bays and coral reefs, some fishes shifted from mangroves to boulder/notch habitats. ...
PETITION TO LIST THE AZTEC GILIA
... Engler et al. (2001) predicted that 12,461 new oil and gas wells could be drilled between 20022022 based on estimates of available resources within the New Mexico region of the San Juan Basin. On federal lands, they predicted 9,970 new wells would be completed in that 20-year timeframe. The BLM auth ...
... Engler et al. (2001) predicted that 12,461 new oil and gas wells could be drilled between 20022022 based on estimates of available resources within the New Mexico region of the San Juan Basin. On federal lands, they predicted 9,970 new wells would be completed in that 20-year timeframe. The BLM auth ...
Marczak, L. B, C. - University of Houston
... (RGR) for plants and Armases (Appendix B). We measured the toughness of green leaves and lyophilized three green leaves from each plant for total nitrogen content. We standardized most response variables, with the exception of leaf toughness, percentage of damage per leaf and N content, by dividing ...
... (RGR) for plants and Armases (Appendix B). We measured the toughness of green leaves and lyophilized three green leaves from each plant for total nitrogen content. We standardized most response variables, with the exception of leaf toughness, percentage of damage per leaf and N content, by dividing ...
Cascading Importance - Oregon State University
... several bird feeders suction cupped to the outside windows. Upon entering his office he motions at the small couch in the corner and tells me to pull up a chair. I get the distinct impression that the purpose of this couch is so Bill can steal a few moments of sleep while pulling all-nighters workin ...
... several bird feeders suction cupped to the outside windows. Upon entering his office he motions at the small couch in the corner and tells me to pull up a chair. I get the distinct impression that the purpose of this couch is so Bill can steal a few moments of sleep while pulling all-nighters workin ...
effects on plant abundance, distribution and population growth
... effects that are difficult to untangle. As such, they do not always reveal to what degree observed changes in focal species are due to direct effects of consumption, versus other potential mechanisms. A small, but growing, number of studies have viewed plant–consumer interactions through a populatio ...
... effects that are difficult to untangle. As such, they do not always reveal to what degree observed changes in focal species are due to direct effects of consumption, versus other potential mechanisms. A small, but growing, number of studies have viewed plant–consumer interactions through a populatio ...
Wildlife Management Practices (WMPs)
... nonnative plant species have become established and spread far beyond where they were initially introduced. This invasion has been detrimental to native plant communities because many nonnative plants outcompete native species for sunlight and nutrients and exclude them from a particular area. Exclu ...
... nonnative plant species have become established and spread far beyond where they were initially introduced. This invasion has been detrimental to native plant communities because many nonnative plants outcompete native species for sunlight and nutrients and exclude them from a particular area. Exclu ...
Biome Notes File - Northwest ISD Moodle
... • Each biome is made up of many individual ecosystems. ...
... • Each biome is made up of many individual ecosystems. ...
Determining ancient woodland indicator plants for practical use: A
... woodland of northwest Germany, we refer to ‘ancient woodland’ as land that has been continuously wooded since at least 1800 AD, since only from this point on are area-wide coverage data on historically old woodland sites available (Wulf, 2003; Glaser and Hauke, 2004). Ancient woodlands with a long h ...
... woodland of northwest Germany, we refer to ‘ancient woodland’ as land that has been continuously wooded since at least 1800 AD, since only from this point on are area-wide coverage data on historically old woodland sites available (Wulf, 2003; Glaser and Hauke, 2004). Ancient woodlands with a long h ...
Apparent competition and insect community structure: towards a
... how predator–prey and related interactions persist in the face of this inherent tendency for unstable oscillations. Theory and experiments have shown many different processes may be involved, and that it is unlikely that any one is predominant (Hassell 2000). As a result, theoretical studies of appa ...
... how predator–prey and related interactions persist in the face of this inherent tendency for unstable oscillations. Theory and experiments have shown many different processes may be involved, and that it is unlikely that any one is predominant (Hassell 2000). As a result, theoretical studies of appa ...
A hierarchical view of habitat and its relationship to species
... For this model to work, one must assume the same general shape for the bell curve for most species under consideration. If one sampled a pool of similar bell-shaped curves, those with broader bases would, on average, have higher peaks and higher mean densities. The assumption of curve similarity la ...
... For this model to work, one must assume the same general shape for the bell curve for most species under consideration. If one sampled a pool of similar bell-shaped curves, those with broader bases would, on average, have higher peaks and higher mean densities. The assumption of curve similarity la ...
Pathogens promote plant diversity through a compensatory response
... interactions between multiple pathogens can have positive or negative effects on plant fitness (Fernando et al. 1994; Morris et al. 2007). Finally, the fitness impacts of a pathogen on a host plant will likely differ depending on the competitive environment of the host (Lively et al. 1995). In the s ...
... interactions between multiple pathogens can have positive or negative effects on plant fitness (Fernando et al. 1994; Morris et al. 2007). Finally, the fitness impacts of a pathogen on a host plant will likely differ depending on the competitive environment of the host (Lively et al. 1995). In the s ...
Small-mammal herbivore control of secondary succession in New
... Species cover was quantified every two weeks for the first six weeks of the experiment, after which recovery was assessed at the end and beginning of the growing season for three years (2005–2007). Cover was measured using the point-intercept method: the plot was overlayed with a 10 3 10 string grid ( ...
... Species cover was quantified every two weeks for the first six weeks of the experiment, after which recovery was assessed at the end and beginning of the growing season for three years (2005–2007). Cover was measured using the point-intercept method: the plot was overlayed with a 10 3 10 string grid ( ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.