Yet, when queens were experimentally removed from these simplest of societies, workers enlarged their ovaries and reproduced at the same rate as naturally solitary-nesting reproductives in the same population. These results suggest that Megalopta females remain totipotent, that they are not inherently ...
In order to understand why, it is necessary to consider just what is being optimized. As described above, natural selection acts at the level of individual organisms. While such organismal-level selection clearly has an effect on the population, it need not maximize any property of that ...
Each organism in the saguaro community has unique characteristics that help it survive. (Write this down) A community is several species that live in the same place. Each organism in the saguaro community has unique characteristics that help it survive. (Write this down) Remember 7th Grade when...
I made this image but this exact point was first made by Adam in his video. Adam believes that partly as a result of the 1994 Desert Protection Act, Joshua Tree National Park was trying to promote the use of their own trails, as an ecosystem conservation method. Ewasko believes that Joshu...
Prevalence:number of people in a particular population that have been diagnosed with that disease and are still alive. (old and alive + current cases) Morality rates:number of deaths due to a particular disease in a specific time period ...
ecosystem impacts should be considered. For example, under the US EPA framework, a threshold of 50% mortality or a 50% effect on growth or reproduction has been accepted for early tier studies, because effects that do not surpass this threshold would be unlikely to cause significant population ...
Linking Bacterial Population Dynamics and Nutrient Removal in the Granular Sludge Biofilm Ecosystem Engineered for Wastewater Treatment 1–17 (2014) Google Scholar Wentzel et al., 1986 M. Wentzel, L. Lötter, R. Loewenthal, G. Marais Metabolic behaviour of Acinetobacter spp. in enhanced biological...