Population Ecology: Mark-Recapture of Sow Bugs Population ecology is the study of how a species population change over time and how they interact within their environment. Population ecologists study the interaction of organisms within their environment by evaluating properties of populations. Such properties studied are population growth, and population structure. One reason they study this is to determine how many individuals make up the population, and how much the population changes over a certain time. (“Estimating the Size”) There are various techniques population ecologists use to test a population size such as Quadrant sampling, Transect test, and mark-recapture test.
The food web case study uses annotations that adequately provide models that depict the predator and prey relationship found in the ecological environment. This relationship is very competitive and discrete mathematics provides different assumptions and computational rules to maintain a natural balance. Competition within the food web describes the parameters needed for each element to exist and coexist within a given environment. These parameters consist of elements such as Ph balance, temperature (or climate), food availability, and so forth. For each animal or plant represented, these parameters provide a niche for survival in the ecological system of nature.
Provide evidence of flexible predatory behaviour and discuss why it should be more so than their prey Over evolutionary time, natural selection has shaped the morphology and behaviour of animals (Wilcox & Jackson, 1998). Therefore, many animals have evolved to be flexible predators, meaning they flexibly alter their behaviour in the face of environmental change, to ensure the successful predation of many prey species (Shettleworth, 2010). Not only this, but these predatory behaviours can be complex and illustrate an astonishing level of cognition (Jackson & Pollard, 1996). This essay provides evidence of the complex, flexible predatory behaviours of Portia, a genus of jumping spider (Salticid) (Jackson & Pollard, 1996). Distinctive from other spider species, Salticids have evolved to acquire acute vision, which is thought to have mediated the development of its diverse predatory behaviours (Jackson & Pollard, 1996).
By using a model system is appropriate as one can predict what will happen in a short period of time. Therefore it is hypothesised that the predator finds certain colour of prey more easily in those environments that they do not blend in. In this exploration a simulated model of natural selection of an organism in different environments was used to show the effect of predation on natural selection. Procedure The researcher was provided with a samp of five different colours and two multi-coloured cloth. The samp was to represent individuals of the insect species, the cloth with red, orange, white colour was to represent the environment one and the one with a green, blue and white colour was to represent environment two and
Populations are under increasing threats from humans by fragmentation of habitat, agricultural practices, chemical use such as pesticides and herbicides, invasive non-native plants, and disease caused mainly by the use of commercial bees for honey and other products (Kearns et. al 1998). To ensure that the relationship between the pollinator and the flower remain intact, conservation efforts must be effectively executed to ensure that both bees and the flowers they use are protected. History of Bees: Many hymenoptera species exist in the world. These include wasps, ants, and bees- all of which show a unique social structure and communication abilities.
Epistemology is a branch of philosophy that is concerned with the origin, nature, extent, and limits of human knowledge. (Richmond, 1970) his interest went beyond the nature of thought, but how it develops and understanding how genetics impacts the process. Jean Piaget’s interest in the natural sciences came at an early age. By the age of ten, he published his first research paper on the albino sparrow. (Rotman, 1977) Piaget continued to study the natural sciences and received his Ph.D. in Zoology from University of Neuchatel in 1918.
Virtual Genetics Lab Biology HL – March 15, 2009 Karry Calderon Introduction In this Virtual Genetics Lab, a computer stimulation of imaginary insects, the computer randomly picks a character with more than one phenotype. It then randomly chooses which form of the character will be dominant and which will be recessive. It also chooses whether the gene involved is autosomal or sex-linked. Objective To use the knowledge of genetics to design and interpret crosses to figure out how alleles of different genes interact (dominant/recessive) and are transmitted (autosomal/sex-linked). Materials and Methods When making the crosses of the computer stimulated imaginary insects I made sure I crossed the same phenotypes together for example (Blue Male x Blue Female), two different phenotypes (Blue Male x Pink Female) and then I would switch the male and female trait (Pink Male x Blue Female) to analyze which phenotype had a dominant or recessive genotype and if the transmission of these genes were autosomal or sex-linked.
Development is defined as the orderly and sequential changes that occur with the passage of time as an organism moves from conception to death. Developmental psychology is defined as the branch of psychology that deals with how individuals change with time while remaining in some respects the same (Zanden et al., 2007). Developmental psychologists have been seeking ways to determine how we change and the changes that take place during our lives as we develop. Urie Bronfenbrenner develops a theory that involves how a person and their ecological environment interact and the influence that a person’s environment plays in their development. Bronfenbrenner is most famous for his views on ecological psychology.
Q: Discuss in detail, the scientific method used in psychological research. The goal of psychological research is to discover, describe, explain and change the causes of behaviour. There are three major scientific approaches to research. Naturalistic observations – observations of people or animals in their natural environment. Correlational studies are observations in nature, but they involve more formal measurement of environmental events and indivisuals behaviour.
COPYRIGHT MICHAEL P M MHLANGA THE NATURE NURTURE DEBATE AND ITS IMPLICATIONS ON THE DEVELOPMENT OF INDIVIDUALS. MICHAEL P M MHLANGA GREAT ZIMBABWE UNIVERSITY The concepts of nature and nurture shape the development of human beings. This write up sets out to assess the nature nurture debate, pinpointing the effects each has on the development of children. Terms that will be defined are nature nurture debate, nature and nurture. Feldman (2009) defines the nature nurture debate as the issue of the degree to which environment and hereditary factors influence the behaviour.