![Community structure and organization of tidepools](http://s1.studyres.com/store/data/000901688_1-e8680652f5954883ff3f03bf5c4d9e19-300x300.png)
Community structure and organization of tidepools
... resulting in large spatial variability in bdepool community structure. For this reason, replication in tidepool stuhes should be carefully selected. Because of their variable characteristics, well-defined boundaries and tidepools of manageable size can serve as experimental mesocosms to test general ...
... resulting in large spatial variability in bdepool community structure. For this reason, replication in tidepool stuhes should be carefully selected. Because of their variable characteristics, well-defined boundaries and tidepools of manageable size can serve as experimental mesocosms to test general ...
Our Changing Sea - Coastal Marine Ecology and Conservation Lab
... function of predation pressure. These results provide evidence of a trophic cascade and reveal the extent to which fishing and natural predation, via the reduction of a shared keystone resource, indirectly alter a temperate coastal ecosystem. ...
... function of predation pressure. These results provide evidence of a trophic cascade and reveal the extent to which fishing and natural predation, via the reduction of a shared keystone resource, indirectly alter a temperate coastal ecosystem. ...
EFFECTS OF AN INVASIVE CONSUMER ON ZOOPLANKTON COMMUNITIES ARE by
... termed “multiple stressor” interactions. Communities whose assemblage was dictated by disturbance, such as in areas of large, recurrent climatic events, could be dramatically altered by interactions between these historical disturbances and new anthropogenic disturbances. Paine et al. (1998) illust ...
... termed “multiple stressor” interactions. Communities whose assemblage was dictated by disturbance, such as in areas of large, recurrent climatic events, could be dramatically altered by interactions between these historical disturbances and new anthropogenic disturbances. Paine et al. (1998) illust ...
The following seven species were found on Diopatra
... for a Diopatra worm to assemble a collection of small objects and use them to decorate the exterior of its tube with the intention of cultivating a collection of microorganisms. In this discussion, decorating refers to an action in which the worm extends out of its tube, picks up or pushes a piece ...
... for a Diopatra worm to assemble a collection of small objects and use them to decorate the exterior of its tube with the intention of cultivating a collection of microorganisms. In this discussion, decorating refers to an action in which the worm extends out of its tube, picks up or pushes a piece ...
Abundance matters: a Weld experiment testing the more individuals
... increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource treatments (Kneitel and Miller 2002), a result consistent with the MIH. Current ideas about the relationship between diversity and productivity often focus on plant communities, ...
... increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource treatments (Kneitel and Miller 2002), a result consistent with the MIH. Current ideas about the relationship between diversity and productivity often focus on plant communities, ...
View PDF - Cramer Fish Sciences
... (5). Until recently, however, little attention has been given to the potential confounding effects that scale-dependent processes may have on relationships; and, consequently, few researchers have explicitly stated either the spatial or temporal scales to which their observations apply. In this sect ...
... (5). Until recently, however, little attention has been given to the potential confounding effects that scale-dependent processes may have on relationships; and, consequently, few researchers have explicitly stated either the spatial or temporal scales to which their observations apply. In this sect ...
Biology
... exhibiting predation, parasitism, commensalism, and mutualism. (Biology) 12C. Compare variations, tolerances, and adaptations of plants and animals in different ...
... exhibiting predation, parasitism, commensalism, and mutualism. (Biology) 12C. Compare variations, tolerances, and adaptations of plants and animals in different ...
A review of the ecological implications of mariculture and
... surrounding fish farms. There are many theories on the zonation and many authors have defined characteristics of the zones and indeed their size for their own study sites. These zones are usually based on biological impact as the infauna are sensitive to changes in the sediment which are not physica ...
... surrounding fish farms. There are many theories on the zonation and many authors have defined characteristics of the zones and indeed their size for their own study sites. These zones are usually based on biological impact as the infauna are sensitive to changes in the sediment which are not physica ...
as a PDF
... it can be shown to feed on the pest/weed does not mean that it will control its populations. Other factors (both deterministic and stochastic) may limit pest/weed populations, such that the biocontrol agent simply removes a proportion of the population that would not have survived anyway. The huge b ...
... it can be shown to feed on the pest/weed does not mean that it will control its populations. Other factors (both deterministic and stochastic) may limit pest/weed populations, such that the biocontrol agent simply removes a proportion of the population that would not have survived anyway. The huge b ...
Grey wolf selection for moose calves and factors influencing prey
... for hunting in cooperative packs that average between 3-4 individuals, with variation among regions (Ballard et al., 1987). Packs are formed by a mating pair and their progeny, with the mating pair typically leading the hunt (Borg et al., 2015). The general tendency, in terms of prey selection, is t ...
... for hunting in cooperative packs that average between 3-4 individuals, with variation among regions (Ballard et al., 1987). Packs are formed by a mating pair and their progeny, with the mating pair typically leading the hunt (Borg et al., 2015). The general tendency, in terms of prey selection, is t ...
Intraspecific adoption and foster feeding of fledglings in the North
... waterfowl. In this study, I document for the first time the existence of intraspecific foster feeding and adoption of fledglings by adult passerines with their own young. During a three-year study of the North Island robin (Petroica longipes), a species with very low levels of extra-pair paternity, ...
... waterfowl. In this study, I document for the first time the existence of intraspecific foster feeding and adoption of fledglings by adult passerines with their own young. During a three-year study of the North Island robin (Petroica longipes), a species with very low levels of extra-pair paternity, ...
White sturgeon, Shovelnose sturgeon, American Paddlefish U.S.
... platorhyncus), and American paddlefish (Polyodon spathula) represent three of twenty seven species of two families in the order Acipensiformes that live only in the Northern Hemisphere. These are among the oldest living species of fishes living today and share common biological characteristics that ...
... platorhyncus), and American paddlefish (Polyodon spathula) represent three of twenty seven species of two families in the order Acipensiformes that live only in the Northern Hemisphere. These are among the oldest living species of fishes living today and share common biological characteristics that ...
Linking fungal communities to wood density loss after 12 years of
... Fungal colonization and decomposition starts in living trees: for example, in wounds, dead branches or as heart-rot (Boddy 2000; Parfitt et al. 2010). When the tree dies, many other fungi are then also able to colonize the wood (Boddy 2001; Vasiliauskas et al. 2005; Jönsson, Edman and Jonsson 2008; ...
... Fungal colonization and decomposition starts in living trees: for example, in wounds, dead branches or as heart-rot (Boddy 2000; Parfitt et al. 2010). When the tree dies, many other fungi are then also able to colonize the wood (Boddy 2001; Vasiliauskas et al. 2005; Jönsson, Edman and Jonsson 2008; ...
BfN-Skripten 375 - Bundesamt für Naturschutz
... publication are those of the authors and do not necessarily represent those of the publisher. This work with all its parts is protected by copyright. Any use beyond the strict limits of the copyright law without the con-sent of the publisher is inadmissible and punishable. Reprint, as well as in ext ...
... publication are those of the authors and do not necessarily represent those of the publisher. This work with all its parts is protected by copyright. Any use beyond the strict limits of the copyright law without the con-sent of the publisher is inadmissible and punishable. Reprint, as well as in ext ...
Positive interactions between the lichen Usnea antarctica
... Laboratory for Soil Analyses (Agronomy Faculty, Universidadde Concepción), where total nitrogen content (NO3 plus NH4+) was estimated. To characterize daily microclimate variation within cushions of U. antarctica and their surrounding environment, we measured temperature and PAR on 15 January, whic ...
... Laboratory for Soil Analyses (Agronomy Faculty, Universidadde Concepción), where total nitrogen content (NO3 plus NH4+) was estimated. To characterize daily microclimate variation within cushions of U. antarctica and their surrounding environment, we measured temperature and PAR on 15 January, whic ...
Fungal endophytes limit pathogen damage in a tropical tree
... In contrast, endophytes associated with healthy leaves of woody angiosperms are poorly known, despite their presence in aerial tissues of all trees and shrubs sampled thus far (9, 10, 21). Unlike the clavicipitaceous endophytes of grasses, endophytes associated with foliage of woody plants appear to ...
... In contrast, endophytes associated with healthy leaves of woody angiosperms are poorly known, despite their presence in aerial tissues of all trees and shrubs sampled thus far (9, 10, 21). Unlike the clavicipitaceous endophytes of grasses, endophytes associated with foliage of woody plants appear to ...
Role, importance and vulnerability of top predators on the Great
... amount of fishing effort and catch and underlying patterns in the abundances of several harvest and non-harvest species. We present circumstantial arguments that this regional variation in the apparent ‘effectiveness’ of Marine Protected Areas is likely to reflect longstanding regional variations in ...
... amount of fishing effort and catch and underlying patterns in the abundances of several harvest and non-harvest species. We present circumstantial arguments that this regional variation in the apparent ‘effectiveness’ of Marine Protected Areas is likely to reflect longstanding regional variations in ...
Dispersal: a central trait in life history
... conceptual issues related to the diverse manners and scales of biological organisation it is measured. Any preconceived view of dispersal as an integral part of Malthusian growth rates or as deterministic integrated into the pace of life concept will further constrain the development of new insights ...
... conceptual issues related to the diverse manners and scales of biological organisation it is measured. Any preconceived view of dispersal as an integral part of Malthusian growth rates or as deterministic integrated into the pace of life concept will further constrain the development of new insights ...
View pdf - Gopher Tortoise Council
... the cause of decline. Decline investigation was undertaken in the first two years of the study (20112012) before initial repatriations began in year 3 (2013). Initial results from our investigation of decline suggest that a synergy of at least three different variables may have acted as the smoking ...
... the cause of decline. Decline investigation was undertaken in the first two years of the study (20112012) before initial repatriations began in year 3 (2013). Initial results from our investigation of decline suggest that a synergy of at least three different variables may have acted as the smoking ...
Desiccation of Rock Pool Habitats and Its Influence on Population
... for any pool at any day. We individually calculated evaporation and, consequently, the water level in all 530 pools (equation 1). We thus retrospectively calculated the percentage of the 530 pools that contained water at any day during May to September over the period 1982 to 2006 (Fig. 3). The pred ...
... for any pool at any day. We individually calculated evaporation and, consequently, the water level in all 530 pools (equation 1). We thus retrospectively calculated the percentage of the 530 pools that contained water at any day during May to September over the period 1982 to 2006 (Fig. 3). The pred ...
Dispersal: a central trait in life history
... conceptual issues related to the diverse manners and scales of biological organisation it is measured. Any preconceived view of dispersal as an integral part of Malthusian growth rates or as deterministic integrated into the pace of life concept will further constrain the development of new insights ...
... conceptual issues related to the diverse manners and scales of biological organisation it is measured. Any preconceived view of dispersal as an integral part of Malthusian growth rates or as deterministic integrated into the pace of life concept will further constrain the development of new insights ...
Entomology Course title: Entomology Full Marks: 80 Course No. Zoo
... paddy fields) and scoring the water quality. 5. Analysis of water quality (DO, CO, temperature, BOD, turbidity etc.). 6. Life cycle study of store grain pests- illustration of different stages and preparation of life table on the basis of experimentation. 7. Plantation of mulberry plants and rearing ...
... paddy fields) and scoring the water quality. 5. Analysis of water quality (DO, CO, temperature, BOD, turbidity etc.). 6. Life cycle study of store grain pests- illustration of different stages and preparation of life table on the basis of experimentation. 7. Plantation of mulberry plants and rearing ...
Research Article Plant Feeding in an Omnivorous Mirid, Dicyphus
... populations on a largely nondepleting plant resource can result in omnivore populations overexploiting prey resources and cause the extinction of those resources [7]. A decline in plant quality (profitability) can result in omnivores increasing their feeding on prey resources, and a decline in prey ...
... populations on a largely nondepleting plant resource can result in omnivore populations overexploiting prey resources and cause the extinction of those resources [7]. A decline in plant quality (profitability) can result in omnivores increasing their feeding on prey resources, and a decline in prey ...
Management of Marsh-Upland Transitional Habitats
... era of marsh transgression, should incorporate both landscape and site specific mapping efforts. Site specific efforts move beyond distribution, quality and type and attempt to delve into the processes (physical, chemical, biological) that drive the formation of transition zones. These efforts are u ...
... era of marsh transgression, should incorporate both landscape and site specific mapping efforts. Site specific efforts move beyond distribution, quality and type and attempt to delve into the processes (physical, chemical, biological) that drive the formation of transition zones. These efforts are u ...
Theoretical ecology
![](https://en.wikipedia.org/wiki/Special:FilePath/FoodWeb.jpg?width=300)
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.