Read our submission - Capricorn Conservation Council
... Coastal Vine Thicket (of Eastern Australia) on Hummock Hill Island and the high conservation values it provides must be protected and not subjected to community fragmentation, edge effects, invasive exotic species, altered hydrology and fire management regimes that would occur with the Island develo ...
... Coastal Vine Thicket (of Eastern Australia) on Hummock Hill Island and the high conservation values it provides must be protected and not subjected to community fragmentation, edge effects, invasive exotic species, altered hydrology and fire management regimes that would occur with the Island develo ...
Are invasive plant species better competitors than native plant
... competition experiments has recently been published (Vilà et al., in press). 2) We considered only experimental manipulations of the abundance (e.g. density, biomass and cover) of the alien or native species or both in which the competition treatments were compared to an appropriate control perform ...
... competition experiments has recently been published (Vilà et al., in press). 2) We considered only experimental manipulations of the abundance (e.g. density, biomass and cover) of the alien or native species or both in which the competition treatments were compared to an appropriate control perform ...
References - Biology Department | UNC Chapel Hill
... Interference: This covers competition, allelopathy, parasitism, pest transmission, and other interactions in which the primary effect is negative of one plant on another. Leaf: “Although no satisfactory definition of a leaf is possible, I shall assume that we all know what we are talking about”: F.G ...
... Interference: This covers competition, allelopathy, parasitism, pest transmission, and other interactions in which the primary effect is negative of one plant on another. Leaf: “Although no satisfactory definition of a leaf is possible, I shall assume that we all know what we are talking about”: F.G ...
species - West Windsor-Plainsboro Regional School District
... a species rather than the separateness of different species The morphological species concept defines a species by structural features It applies to sexual and asexual species but relies ...
... a species rather than the separateness of different species The morphological species concept defines a species by structural features It applies to sexual and asexual species but relies ...
Comments - Society for Conservation Biology
... Without ESA protection, it will be very difficult for wolves to disperse into Utah and Colorado because of lost protections along key habitat corridors in Wyoming. Under ESA protection, several wolves have dispersed into Utah and Colorado, which are reported in the proposed rule (Federal Register pg ...
... Without ESA protection, it will be very difficult for wolves to disperse into Utah and Colorado because of lost protections along key habitat corridors in Wyoming. Under ESA protection, several wolves have dispersed into Utah and Colorado, which are reported in the proposed rule (Federal Register pg ...
sample
... testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. At the end of their study, scientists stated that they had supported their theory that ...
... testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. At the end of their study, scientists stated that they had supported their theory that ...
Monitoring Ecosystem Change in Carolinian Forests and Oak
... Concerns over forest health and decline in North America continue. Pollutant-induced general forest decline has now been documented in at least 25 states across the eastern U.S. (Loucks, 1998). Although some such assessments have been done for Canada’s forests, the accumulation and analysis of basic ...
... Concerns over forest health and decline in North America continue. Pollutant-induced general forest decline has now been documented in at least 25 states across the eastern U.S. (Loucks, 1998). Although some such assessments have been done for Canada’s forests, the accumulation and analysis of basic ...
Testing adaptive hypotheses Testing adaptive
... We could then measure whether the number of males we observe in nature is consistent with the predictions of the model, given our observations of predation and mating probabilities. ...
... We could then measure whether the number of males we observe in nature is consistent with the predictions of the model, given our observations of predation and mating probabilities. ...
video slide - Manchester Township School District
... • The total of a species’ use of biotic and abiotic resources is called the species’ ecological niche • Ecologically similar species can coexist in a community if there are one or more significant differences in their niches • As a result of competition, a species’ fundamental niche may differ from ...
... • The total of a species’ use of biotic and abiotic resources is called the species’ ecological niche • Ecologically similar species can coexist in a community if there are one or more significant differences in their niches • As a result of competition, a species’ fundamental niche may differ from ...
DODSON, STANLEY Predicting crustacean zooplankton species
... on larger islands may be due to lower extincti’on rates and higher immigration rates than on smaller islands, to more subdivisions (niches and resources) on larger islands, or to sampling phenomena. A systematic large-scale study of number of species in lakes has two advantages. First, --Acknowledgm ...
... on larger islands may be due to lower extincti’on rates and higher immigration rates than on smaller islands, to more subdivisions (niches and resources) on larger islands, or to sampling phenomena. A systematic large-scale study of number of species in lakes has two advantages. First, --Acknowledgm ...
Journal of Antimicrobial Chemotherapy (1986) 18, Suppl
... vivo. Parameters must be isolated in experimental models, such as continuous flow cultures or gnotobiotic animals. These factors are too numerous to be comprehended simultaneously, particularly in their quantitative relationships. One has to build a mathematical model to estimate the relative effect ...
... vivo. Parameters must be isolated in experimental models, such as continuous flow cultures or gnotobiotic animals. These factors are too numerous to be comprehended simultaneously, particularly in their quantitative relationships. One has to build a mathematical model to estimate the relative effect ...
A GENERAL HYPOTHESIS OF SPECIES DIVERSITY Many
... between growth rate and diversity has a "break point" at very low growth rates (fig. 6) where a slight increase in growth rates will result in a rapid increase in diversity, which will then decrease as growth rates rise. The population growth rates of competitors in a community will have some sort o ...
... between growth rate and diversity has a "break point" at very low growth rates (fig. 6) where a slight increase in growth rates will result in a rapid increase in diversity, which will then decrease as growth rates rise. The population growth rates of competitors in a community will have some sort o ...
6-3 Biodiversity - Collierville High School
... individual species to keep them from becoming extinct. ...
... individual species to keep them from becoming extinct. ...
Species resistance and community response to wind disturbance
... 1 Severe winds are the predominant cause of natural disturbance in temperate forests of north-eastern and north-central North America. Conceptual models of the effects of wind disturbance have traditionally focused on the impacts of catastrophic disturbances and have painted a simple picture of how ...
... 1 Severe winds are the predominant cause of natural disturbance in temperate forests of north-eastern and north-central North America. Conceptual models of the effects of wind disturbance have traditionally focused on the impacts of catastrophic disturbances and have painted a simple picture of how ...
Spatiotemporal variations in aphidparasitoid relative abundance
... the multidimensional data of the dissimilarity matrix and presents it in minimal dimensional space. The result of nMDS ordination is a map where the position of each sample is determined by its distance from all other points in the analysis. This method reduces ecological community data complexity a ...
... the multidimensional data of the dissimilarity matrix and presents it in minimal dimensional space. The result of nMDS ordination is a map where the position of each sample is determined by its distance from all other points in the analysis. This method reduces ecological community data complexity a ...
foraging behaviour and feeding ecology of the otter lutra lutra
... 1979 and 1984; MacArthur & Dyck, 1990). Water temperature may have similar effects on Otters, and indeed it has been shown to have a large effect on the metabolism and behaviour of captive animals, with activity increasing as water temperature decreases (Kruuk et al. a, in prep). In a companion stud ...
... 1979 and 1984; MacArthur & Dyck, 1990). Water temperature may have similar effects on Otters, and indeed it has been shown to have a large effect on the metabolism and behaviour of captive animals, with activity increasing as water temperature decreases (Kruuk et al. a, in prep). In a companion stud ...
The origin of higher taxa: macroevolutionary processes, and the
... Kemp, T. S. 2007. The origin of higher taxa: macroevolutionary processes, and the case of the mammals. — Acta Zoologica (Stockholm) 88: 3–22 The origin of a new higher taxon is characterized by a long-term phylogenetic trend, involving evolutionary changes in a large number of characters. At this ph ...
... Kemp, T. S. 2007. The origin of higher taxa: macroevolutionary processes, and the case of the mammals. — Acta Zoologica (Stockholm) 88: 3–22 The origin of a new higher taxon is characterized by a long-term phylogenetic trend, involving evolutionary changes in a large number of characters. At this ph ...
and surface-adapted fish populations?
... the different light environments (Tobler et al. 2008a), predation by Belostoma may be a driving factor in the divergence of cave and surface populations of P. mexicana. Overall, these results are consistent with the idea that divergent selection by predation can cause immigrant inviability and contr ...
... the different light environments (Tobler et al. 2008a), predation by Belostoma may be a driving factor in the divergence of cave and surface populations of P. mexicana. Overall, these results are consistent with the idea that divergent selection by predation can cause immigrant inviability and contr ...
Bottom-Up and Top-Down Interactions across Aquatic
... part of a larger (closed) metapopulation (Hanski and Gilpin, 1991). These characteristically diverse life histories and scaling of population dynamics distinguish marine communities from terrestrial communities and have important, and sometimes surprising, consequences for conceptualizing and modeli ...
... part of a larger (closed) metapopulation (Hanski and Gilpin, 1991). These characteristically diverse life histories and scaling of population dynamics distinguish marine communities from terrestrial communities and have important, and sometimes surprising, consequences for conceptualizing and modeli ...
dicent SymbolS in mimicry
... conveys false information. And, as argued above, since only propositions can be true or false, composite signs used in animal deception should be treated as propositions. Is this too far-fetched? To answer this worry, let us examine what a proposition is in terms of Peirce’s theory. Usually, a propo ...
... conveys false information. And, as argued above, since only propositions can be true or false, composite signs used in animal deception should be treated as propositions. Is this too far-fetched? To answer this worry, let us examine what a proposition is in terms of Peirce’s theory. Usually, a propo ...
Appendix 1
... 3) The losses of plant foliage, in terms of the percentage of leaf area or leaf biomass, consumed (or modified, as in the case of gallers) by herbivorous insects from three feeding guilds (defoliators, miners and gallers; separately or in combination), were measured from individual leaves of woody p ...
... 3) The losses of plant foliage, in terms of the percentage of leaf area or leaf biomass, consumed (or modified, as in the case of gallers) by herbivorous insects from three feeding guilds (defoliators, miners and gallers; separately or in combination), were measured from individual leaves of woody p ...
Ecological Risk Assessment of Genetically Modified Higher Plants
... In ecological risk assessment of transgenic plants, information on a wide range of subjects is needed for an effective and reliable assessment procedure. The information obtained from literature, field trials, laboratory and greenhouse tests have to be interpreted in a structured and well-defined ma ...
... In ecological risk assessment of transgenic plants, information on a wide range of subjects is needed for an effective and reliable assessment procedure. The information obtained from literature, field trials, laboratory and greenhouse tests have to be interpreted in a structured and well-defined ma ...
Habitat selection as a major resource partitioning mechanism
... Helversen 0878#\ but ecological evidence is still lack! ing[ It may be argued that the ecomorphological approach aims _rst to look at trends within or amongst communities\ not to predict subtle di}er! ences at the micro!evolutionary level[ Recognizing its intrisic limitations is important\ however " ...
... Helversen 0878#\ but ecological evidence is still lack! ing[ It may be argued that the ecomorphological approach aims _rst to look at trends within or amongst communities\ not to predict subtle di}er! ences at the micro!evolutionary level[ Recognizing its intrisic limitations is important\ however " ...
Theoretical ecology
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.