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... underlying sediment flora, fauna and microbes were estimated by subtracting the respiration of the mussels and the metabolism of the bare sand surrounding the patches in the enclosures. The resulting values for empty ‘Shells’, from which values for ‘Sand’ were subtracted, are a measure of the activi ...
... underlying sediment flora, fauna and microbes were estimated by subtracting the respiration of the mussels and the metabolism of the bare sand surrounding the patches in the enclosures. The resulting values for empty ‘Shells’, from which values for ‘Sand’ were subtracted, are a measure of the activi ...
On the Links Between Managerial Actions, Keystone Species
... The first step in this modeling procedure involves the specification of an appropriate set of states. To this end, let x denote the number of keystone species that are healthy (not endangered) and ...
... The first step in this modeling procedure involves the specification of an appropriate set of states. To this end, let x denote the number of keystone species that are healthy (not endangered) and ...
Viewpoint: A theoretical basis for planning woody plant control to
... south Texas was projected to earn a 9.4% rate of return from livestock grazing. The long-term effect of repeated cuhural inputs on diversity are not well documented, but they may result in reduced species richness and diversity. Shannon’s diversity index values were lower in a shrub community domina ...
... south Texas was projected to earn a 9.4% rate of return from livestock grazing. The long-term effect of repeated cuhural inputs on diversity are not well documented, but they may result in reduced species richness and diversity. Shannon’s diversity index values were lower in a shrub community domina ...
Positive - Bertness Lab
... mangroves, (c) giant kelp, and (d) freshwater macroalgae. removal and a controversial restoration tool. abundance and influence; Boucher et al. 1982; Ellison et al. 2005). Foundation species are particularly important Including population-level interactions for restoration because they can facilitat ...
... mangroves, (c) giant kelp, and (d) freshwater macroalgae. removal and a controversial restoration tool. abundance and influence; Boucher et al. 1982; Ellison et al. 2005). Foundation species are particularly important Including population-level interactions for restoration because they can facilitat ...
Food-Web Models Predict Species Abundances in Response to Habitat Change
... for the importance of trophic structure in controlling abundances of multiple species in an aquatic food web. Moreover, we demonstrate that models of trophic structure account for the results better than do simpler models that focus only on responses of individual species to changes in habitat size ...
... for the importance of trophic structure in controlling abundances of multiple species in an aquatic food web. Moreover, we demonstrate that models of trophic structure account for the results better than do simpler models that focus only on responses of individual species to changes in habitat size ...
Journal of Experimental Marine Biology and Ecology
... interspecific relationships, in turn, can drive important local-scale changes in community dynamics, biodiversity, and ecosystem functioning, and can potentially alter large-scale patterns of distribution and abundance. In many cases, the importance of indirect effects of warming, mediated by changin ...
... interspecific relationships, in turn, can drive important local-scale changes in community dynamics, biodiversity, and ecosystem functioning, and can potentially alter large-scale patterns of distribution and abundance. In many cases, the importance of indirect effects of warming, mediated by changin ...
Invasiveness Does Not Predict Impact: Response of Native Land
... molluscan assemblages. Species with shells smaller than 5 mm [78] were classified as ‘‘small species’’. We distinguish this category because of biologically important variation of snail size in relationship to ecological [79] and geographical [80] scales. Specifically, large snails are often associa ...
... molluscan assemblages. Species with shells smaller than 5 mm [78] were classified as ‘‘small species’’. We distinguish this category because of biologically important variation of snail size in relationship to ecological [79] and geographical [80] scales. Specifically, large snails are often associa ...
Effects of local adaptation and interspecific competition on species
... ran simulations with an individual-based, coupled map–lattice model. The landscape is a grid of 200 rows (x) by 200 columns (y), with 20% of the cells being suitable as habitat (same for both species) and randomly distributed in the lattice. Each suitable cell (100 × 100 m) supports multiple individ ...
... ran simulations with an individual-based, coupled map–lattice model. The landscape is a grid of 200 rows (x) by 200 columns (y), with 20% of the cells being suitable as habitat (same for both species) and randomly distributed in the lattice. Each suitable cell (100 × 100 m) supports multiple individ ...
APES Fall Semester Peer Review
... 65. Certain night-active moths and day-active birds are specialized nectar feeders. How do these species coexist if they are using the same resource for food? A) Since they both use the nectar eventually one of the two species will need to move to a new area. B) They do not compete for the nectar be ...
... 65. Certain night-active moths and day-active birds are specialized nectar feeders. How do these species coexist if they are using the same resource for food? A) Since they both use the nectar eventually one of the two species will need to move to a new area. B) They do not compete for the nectar be ...
Squatter Pigeon (southern subspecies
... distribution and is now very highly restricted. The pre-1990 extent of occurrence (EOO) was 95,850 km2 based on a minimum convex polygon enclosing all mapped occurrences of the species in NSW (OEH 2016). This is likely to be an under-estimate of the original distribution due to the paucity of histor ...
... distribution and is now very highly restricted. The pre-1990 extent of occurrence (EOO) was 95,850 km2 based on a minimum convex polygon enclosing all mapped occurrences of the species in NSW (OEH 2016). This is likely to be an under-estimate of the original distribution due to the paucity of histor ...
Differences in leaf δ13C among four dominant species in a
... there is strong differentiation in both photosynthesis pathway and WUE between B. ischaemun and the dominant species from the first three stages characterised by relative short-term restoration history (3 to 46 y). Although leaf δ13C of A. gmelinii from the third succession stage is significantly hi ...
... there is strong differentiation in both photosynthesis pathway and WUE between B. ischaemun and the dominant species from the first three stages characterised by relative short-term restoration history (3 to 46 y). Although leaf δ13C of A. gmelinii from the third succession stage is significantly hi ...
Biological Resources - City of Laguna Niguel
... Parks and Ornamental Plantings (OCHCS 15.5): This category describes areas dominated by nonnative ornamental trees and/or shrubs. The ornamental trees found on the site include Mexican fan palms (Washingtonia robusta), pepper trees (Schinus molle), and Aleppo pines (Pinus halepensis). Approximately ...
... Parks and Ornamental Plantings (OCHCS 15.5): This category describes areas dominated by nonnative ornamental trees and/or shrubs. The ornamental trees found on the site include Mexican fan palms (Washingtonia robusta), pepper trees (Schinus molle), and Aleppo pines (Pinus halepensis). Approximately ...
Decomposition of Leaf Litter in a U.S. Saltmarsh is Driven by
... in Loreau and Hector 2001; Fox 2005). Complementarity is based on species-specific resource use or positive interspecific interactions (facilitation), resulting in higher performance (synergism) at the community level than expected from performance of single species. Alternatively, according to the ...
... in Loreau and Hector 2001; Fox 2005). Complementarity is based on species-specific resource use or positive interspecific interactions (facilitation), resulting in higher performance (synergism) at the community level than expected from performance of single species. Alternatively, according to the ...
Beak of the Fish: What Cichlid Flocks Reveal About Speciation
... independently evolved within different parts of unrelated, but separately evolved the same color source reveals that speciation processes within these ...
... independently evolved within different parts of unrelated, but separately evolved the same color source reveals that speciation processes within these ...
Phylogenetic structure of plant species pools reflects habitat age on
... 2013; Gerhold et al. 2015). There are two types of deterministic processes which drive species composition of plant communities: (i) abiotic processes, usually understood as environmental filters, which select those species of the regional flora that match the specific habitat requirements (Silverto ...
... 2013; Gerhold et al. 2015). There are two types of deterministic processes which drive species composition of plant communities: (i) abiotic processes, usually understood as environmental filters, which select those species of the regional flora that match the specific habitat requirements (Silverto ...
dietary habits of the common rodents in an agroecosystem in
... transect data were used to characterize plant species as border, crop, or both habitat types, based on frequency of occurrence. Plant species were classified as primarily crop or border habitat species if they occurred in that habitat ;::;::75% of the time. To evaluate selective foraging by rodents, ...
... transect data were used to characterize plant species as border, crop, or both habitat types, based on frequency of occurrence. Plant species were classified as primarily crop or border habitat species if they occurred in that habitat ;::;::75% of the time. To evaluate selective foraging by rodents, ...
ABSTRACT Title of Dissertation: ECOLOGICAL DYNAMICS OF MACROLEPIDOPTERA
... Beta diversity in temperate forest herbivorous insect communities is thought to be low, in part due to polyphagy, but neither insects nor ecological interactions are distributed evenly in space. I investigated -diversity of caterpillars feeding on a single host plant species at spatial scales from ...
... Beta diversity in temperate forest herbivorous insect communities is thought to be low, in part due to polyphagy, but neither insects nor ecological interactions are distributed evenly in space. I investigated -diversity of caterpillars feeding on a single host plant species at spatial scales from ...
HABIT-CHANGE Priority matrix impacts per region and habitat
... based on a literature review (see Output 3.1.1). They will give a broader overview on the topic and allow for a comparison of the data from investigation areas with information provided on a more general scale. The information on impacts per investigation area in chapter 4 is based on expert knowled ...
... based on a literature review (see Output 3.1.1). They will give a broader overview on the topic and allow for a comparison of the data from investigation areas with information provided on a more general scale. The information on impacts per investigation area in chapter 4 is based on expert knowled ...
BMC EcologyImage Competition 2015: the winning images
... Dhritiman Das (Ashoka Trust for Research in Ecology and the Environment (ATREE), India) (Fig. 2): When natural habitats are destroyed by encroaching civilization, the displaced wildlife must search for new homes or otherwise perish. This striking image is an example of the intimate interactions that ...
... Dhritiman Das (Ashoka Trust for Research in Ecology and the Environment (ATREE), India) (Fig. 2): When natural habitats are destroyed by encroaching civilization, the displaced wildlife must search for new homes or otherwise perish. This striking image is an example of the intimate interactions that ...
Competition and the Structure of Granivore
... The importance of worker body size to coexistence of harvester ants is perhaps best exemplified by the pattern of size specialization in relationship to faunistic diversity (Davidson 1978a). Dominating the depauperate communities of the rela tively arid and unproductive Mojave and C o l o r a d o d ...
... The importance of worker body size to coexistence of harvester ants is perhaps best exemplified by the pattern of size specialization in relationship to faunistic diversity (Davidson 1978a). Dominating the depauperate communities of the rela tively arid and unproductive Mojave and C o l o r a d o d ...
POSTNOTE Environmental Impact of Tidal Energy
... (including plants, animals and bacteria) on earth.20 A tidal energy barrage may impact biodiversity because of either a loss, gain or a change in species. A simple gain in the number of species may not represent a gain in biodiversity if it results in the loss of rare or unique species that are repl ...
... (including plants, animals and bacteria) on earth.20 A tidal energy barrage may impact biodiversity because of either a loss, gain or a change in species. A simple gain in the number of species may not represent a gain in biodiversity if it results in the loss of rare or unique species that are repl ...
Food web structure and the evolution of ecological communities
... could be argued might have done just as well. For instance, the parent could be chosen according to criteria dependent on population size or trophic level, and not purely at random, and the child might not always have just one modified feature. We hope in the future to check that changes such as thes ...
... could be argued might have done just as well. For instance, the parent could be chosen according to criteria dependent on population size or trophic level, and not purely at random, and the child might not always have just one modified feature. We hope in the future to check that changes such as thes ...
Louisiana Waterthrush
... Background: The Cerulean Warbler is a high priority forest-nesting species with exceptional habitat requirements. It represents an umbrella forest-nesting species in PIF16 because it requires large forest tracts of mature or old-growth forest (Hamel 1992, Hamel 2000b, a, Rosenberg et al. 2000), a re ...
... Background: The Cerulean Warbler is a high priority forest-nesting species with exceptional habitat requirements. It represents an umbrella forest-nesting species in PIF16 because it requires large forest tracts of mature or old-growth forest (Hamel 1992, Hamel 2000b, a, Rosenberg et al. 2000), a re ...