Maureen McClung - Biology Department | UNC Chapel Hill
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
Maureen McClung - Biology Department | UNC Chapel Hill
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
Environmental and spatial drivers of taxonomic, functional
... structure were consistently small. In contrast, landscape characteristics (i.e., environment) played an appreciable role in structuring bat communities. Spatially-structured landscape characteristics explained 84% of the variation in functional or phylogenetic dispersion, and the unique effects of l ...
... structure were consistently small. In contrast, landscape characteristics (i.e., environment) played an appreciable role in structuring bat communities. Spatially-structured landscape characteristics explained 84% of the variation in functional or phylogenetic dispersion, and the unique effects of l ...
Sources of mortality and associated life-cycle traits of
... The consequences of other anthropogenic inputs are separately dealt with under pollution, and assessment is confined to the outcome of field studies, rather than inferences from laboratory-based toxicity tests. Serious oil spills are excluded from consideration under this item, on the basis that i ...
... The consequences of other anthropogenic inputs are separately dealt with under pollution, and assessment is confined to the outcome of field studies, rather than inferences from laboratory-based toxicity tests. Serious oil spills are excluded from consideration under this item, on the basis that i ...
Summary
... abundance and mean size and age of previously exploited populations. Thus density-dependent changes in life-history characteristics should occur when populations are allowed to recover in MPAs. In this review, we synthesize the existing information on resource limitation in marine ecosystems, densit ...
... abundance and mean size and age of previously exploited populations. Thus density-dependent changes in life-history characteristics should occur when populations are allowed to recover in MPAs. In this review, we synthesize the existing information on resource limitation in marine ecosystems, densit ...
Genetic considerations in shellfish restoration
... Hatcheries can also undertake selective breeding programmes for conservation or commercial ends. For example, disease tolerant lines can be developed for shellfish restoration. Hatchery production coupled with modern genetic techniques allows control of the genetic composition of juveniles, which ma ...
... Hatcheries can also undertake selective breeding programmes for conservation or commercial ends. For example, disease tolerant lines can be developed for shellfish restoration. Hatchery production coupled with modern genetic techniques allows control of the genetic composition of juveniles, which ma ...
Molecular approaches for detection and identification of foodborne
... Until recently, cultural techniques were the gold standard for detection and identification of microorganisms contaminating food stuffs (Jasson et al., 2010), but conventional methods are labor intensive, time consuming, and costly (Singh et al., 2013). Therefore, it is necessary to apply novel tool ...
... Until recently, cultural techniques were the gold standard for detection and identification of microorganisms contaminating food stuffs (Jasson et al., 2010), but conventional methods are labor intensive, time consuming, and costly (Singh et al., 2013). Therefore, it is necessary to apply novel tool ...
mink
... international market for mink products. The volatile nature of mink prices in recent years has caused many trappers to decrease their effort for this species and to focus on more financially rewarding furbearers. In BC, the annual harvest of wild mink has declined from between 10000 to 20000 animal ...
... international market for mink products. The volatile nature of mink prices in recent years has caused many trappers to decrease their effort for this species and to focus on more financially rewarding furbearers. In BC, the annual harvest of wild mink has declined from between 10000 to 20000 animal ...
Effects of species diversity on the primary productivity of ecosystems
... to the broader scales at which natural communities are most likely to influence ecosystem functioning. Here we develop a simple patch-dynamics model to examine some of the scale-dependent and independent qualities of the diversity-productivity relationship. We first simulate a typical diversity-prod ...
... to the broader scales at which natural communities are most likely to influence ecosystem functioning. Here we develop a simple patch-dynamics model to examine some of the scale-dependent and independent qualities of the diversity-productivity relationship. We first simulate a typical diversity-prod ...
Ecological Resilience, Biodiversity, and Scale
... with fewer species in a functional group would exhibit decreased ability to compensate for population declines in other species. Similarly, Schindler (1990) observed that the largest changes in ecological processes and food-web organization occurred when species that were the only remaining member o ...
... with fewer species in a functional group would exhibit decreased ability to compensate for population declines in other species. Similarly, Schindler (1990) observed that the largest changes in ecological processes and food-web organization occurred when species that were the only remaining member o ...
Introduction Poaceae (R.Br.) Barnh. is the fourth
... have provided grass systematists of the world the much needed forum for guidance and ...
... have provided grass systematists of the world the much needed forum for guidance and ...
Biodiversity effects on productivity and stability of marine macroalgal
... On the other hand, facilitation or partitioning of resources among species might be more common where resources are limited (Brooker and Callaghan 1998, Hooper et al. 2005), increasing complementarity effects. Studies that have crossed resource supply with species richness have so far provided spars ...
... On the other hand, facilitation or partitioning of resources among species might be more common where resources are limited (Brooker and Callaghan 1998, Hooper et al. 2005), increasing complementarity effects. Studies that have crossed resource supply with species richness have so far provided spars ...
The functional approach to agricultural landscape analysis. The
... landscape: - complex system, - permanently dynamic, where different natural and cultural factors: - influence each other, - change over time, - determining and being determined by the global structure. (Forman and Godron, 1986; Naveh and Lieberman, 1994; Zonneveld, 1990). Landscape has also a subjec ...
... landscape: - complex system, - permanently dynamic, where different natural and cultural factors: - influence each other, - change over time, - determining and being determined by the global structure. (Forman and Godron, 1986; Naveh and Lieberman, 1994; Zonneveld, 1990). Landscape has also a subjec ...
wildlife matters - Australian Wildlife Conservancy
... recognise that feral cat control must be the highest priority – additional investment is urgently needed. After predation by feral cats, the next most significant threats were predation by foxes and altered fire regimes. Climate change was rated as a relatively low threat to terrestrial mammals in t ...
... recognise that feral cat control must be the highest priority – additional investment is urgently needed. After predation by feral cats, the next most significant threats were predation by foxes and altered fire regimes. Climate change was rated as a relatively low threat to terrestrial mammals in t ...
The habitat of Salpa fusiformis in the California current a
... alike than swarm and nonswarm ones. However, the variability of the similarity indices within each category is high and the means of the various conditions differ by as much as 5%. Although no large-scale diffcrcnces in the diatom assemblages found with S. fusiformis can be attributed to the factors ...
... alike than swarm and nonswarm ones. However, the variability of the similarity indices within each category is high and the means of the various conditions differ by as much as 5%. Although no large-scale diffcrcnces in the diatom assemblages found with S. fusiformis can be attributed to the factors ...
Are there general laws in parasite community - MiVEGEC
... represents all of the infracommunities within a given host population. Then the highest level of parasite organization is the suprapopulation which represents all individuals of a given parasite species within an ecosystem. Next, the parasite compound community consists of all the parasite communiti ...
... represents all of the infracommunities within a given host population. Then the highest level of parasite organization is the suprapopulation which represents all individuals of a given parasite species within an ecosystem. Next, the parasite compound community consists of all the parasite communiti ...
Factors Influencing Macroinvertebrate Diversity and Community
... variables to improve fit when indicated. I adopted a model-fitting approach to multiple regression based on the principle of parsimony, which is that the best model is the simplest model that explains the data well, in which redundant parameters have been removed. I achieved this by fitting the maxi ...
... variables to improve fit when indicated. I adopted a model-fitting approach to multiple regression based on the principle of parsimony, which is that the best model is the simplest model that explains the data well, in which redundant parameters have been removed. I achieved this by fitting the maxi ...
NUTRIENT LIMITATION IN THE SEA: DYNAMICS, IDENTIFICATION
... for ammonia uptake by Chlorella sp. The data of Harvey ( 1963) for the uptake of phosphate by Phueoductylum tricornutum, when replotted ( Fig. 4 ) , also show Michaelis-Menton kinetics. Although the data are scanty at present, the preliminary assumption that the nutrient uptake behavior of algae is ...
... for ammonia uptake by Chlorella sp. The data of Harvey ( 1963) for the uptake of phosphate by Phueoductylum tricornutum, when replotted ( Fig. 4 ) , also show Michaelis-Menton kinetics. Although the data are scanty at present, the preliminary assumption that the nutrient uptake behavior of algae is ...
A keystone predator controls bacterial diversity in the pitcher
... the main sampling site and circles indicate the small-scale ‘regions’ used in the biogeographical analysis. For detailed analysis of the effect of the mosquito on community structure, Swift River Bog was used as there were few mosquitoes on the islands sampled at Harvard Pond. ...
... the main sampling site and circles indicate the small-scale ‘regions’ used in the biogeographical analysis. For detailed analysis of the effect of the mosquito on community structure, Swift River Bog was used as there were few mosquitoes on the islands sampled at Harvard Pond. ...
Functional Extinctions of Species in Ecological Networks Torbjörn Säterberg
... about another type of extinctions: functional extinctions. Those occur when the abundance of a species is too small to uphold the species’ ecologically interactive role. I have taken a theoretical approach and used dynamical models to investigate functional extinctions and threshold values for speci ...
... about another type of extinctions: functional extinctions. Those occur when the abundance of a species is too small to uphold the species’ ecologically interactive role. I have taken a theoretical approach and used dynamical models to investigate functional extinctions and threshold values for speci ...
When are alternative stable states more likely to occur?
... tend to be more similar to each other than expected by chance alone’’ (drawn from p. 410 of Didham et al. 2005), and (ii) that ‘‘these species will be more likely to resist displacement by newly-arriving propagules that share very similar traits’’ (drawn from p. 411), resulting in alternative stable ...
... tend to be more similar to each other than expected by chance alone’’ (drawn from p. 410 of Didham et al. 2005), and (ii) that ‘‘these species will be more likely to resist displacement by newly-arriving propagules that share very similar traits’’ (drawn from p. 411), resulting in alternative stable ...
2.2 Measuring abiotic components of the system
... TOK: This topic raises some engaging issues of debate concerning the moral justification for exploiting species and the moral imperative for conserving them. Do other organisms have a right to moral consideration? How is this justified? Do panda bears have a greater right than lichens? What about th ...
... TOK: This topic raises some engaging issues of debate concerning the moral justification for exploiting species and the moral imperative for conserving them. Do other organisms have a right to moral consideration? How is this justified? Do panda bears have a greater right than lichens? What about th ...