User talk:Emscott3/sandbox

Anagenesis is a traceable design, or pattern defined by a gradual (evolutionary) change that occurs in a species without the need for splitting. Not to be confused with cladogenesis, which can be defined as a design that is caused by the branching or splitting of a species lineages; the common ancestor will branch off into two or more lineages, resulting in sister species. The formation of a new species from an ancestral species is not the same as anagenesis. Even though anagenesis is not defined by speciation, speciation can assist the process of anagenesis. When speciation occurs and different lineages branch off, if progress is made in one direction without extinction or species selection, then anagenesis occurs. Emscott3 (talk) 22:53, 27 October 2017 (UTC)

Article evaluation
Emscott3 (talk) 23:09, 27 October 2017 (UTC)

Lead Section
Anagenesis is a traceable design, or pattern defined by a gradual (evolutionary) change that occurs in a species without the need for splitting. Not to be confused with cladogenesis, which can be defined as a design that is caused by the branching or splitting of a species lineages; the common ancestor will branch off into two or more lineages, resulting in sister species. The formation of a new species from an ancestral species is not the same as anagenesis. Even though anagenesis is not defined by speciation, speciation can assist the process of anagenesis. When speciation occurs and different lineages branch off, if progress is made in one direction without extinction or species selection, then anagenesis occurs.

Rough Draft
In Humans (need to add more)

When looking at anagenesis in hominids, M. H. Wolpoff describes in terms of the ‘single-species hypothesis,’ which is characterized by thinking of the impact that culture has on a species as an adaptive system, and as an explanation to what conditions humans tend live in based on the environmental conditions, or ecological niche. When judging the effect culture has as this adaptive system, scientists must first look the modern Homo sapiens. Wolpoff contended that the ecological niche of past, extinct hominidae is distinct within the line of origin.

Hypotheses of Anagenesis

One hypothesis is that during the speciation event in anagenetic evolution, the original populations will increase quickly, and then rack up genetic variation over long periods of time by mutation and recombination in a stable environment. Other factors such as selection or genetic drift will such a significant effect on genetic material and physical traits that a species can be acknowledges as being different from the previous.

Emscott3 (talk) 06:00, 11 November 2017 (UTC)

Emily Martin Peer Review
Things you did well:

I think you did a good job recognizing which sections of the article needed work and which didn't. This provides increased balanced coverage that will give a more cohesive feel to the article. You also remained neutral throughout the article, which is important when writing for an encyclopedia.

Things to work on:

I didn't see any sources inserted into your draft. I'm not sure if you're planning on adding them later, but it's important to cite your sentences so readers can know which source goes with which piece of information.

I would also suggest providing some brief background information of M.H. Wolpoff (just one sentence unless he's had a major role surrounding anagenesis).

Lastly, you talk about two hypothesis, the single species hypothesis and the anagenesis hypothesis. For both, I think it would be beneficial to elaborate more on the implications of each hypothesis (i.e., if true, then X). I would also include other contending hypotheses (if there are any) and what the general consensus is in the scientific community regarding these hypotheses (are they widely accepted, relatively new, etc.) This would also be a great opportunity to provide a hyperlink if there is a Wikipedia page on either hypothesis.

Overall, I think you have a really solid start and should just continue on, being mindful of what information is most important to someone with no background information on the topic of anagenesis. — Preceding unsigned comment added by Eemartin2 (talk • contribs) 18:34, 17 November 2017 (UTC)

Clare Ols Peer Review
Things done well: You've done a great job structuring and formatting the article, which breaks it up into organized subtopics and makes it easy for the reader to follow. You write well and in a way that someone not familiar with the topic will be able to understand.

Things to work: As said in the other review, make sure to add in-text citations. I agree with the suggestion to add a short background on Wolpoff so that the reader understands his significance/authority. Also check sentence structure/comma use. I would also consider moving the Hypotheses section above the part about anagenesis in humans so that the reader gets an overview of the hypotheses before focusing on one specific to a certain species.

Overall I think you've done a great job so far and are well on the way to improving the article! — Preceding unsigned comment added by Cnols (talk • contribs) 19:14, 17 November 2017 (UTC)

Development
An alternative definition offered for anagenesis is as follows: progeny relationships between designated taxa with one or more denominated taxa in line with a branch from the evolutionary tree. Taxa mat be with of species or genus and will help identify possible ancestors. When looking at evolutionary descent, there are two mechanisms at play. The first process is when an alteration is made to genetic information. This means that over time there is enough of a difference in the genetic code and the way that species genes interact with each other during the developmental stage. Anagenesis can be viewed as the processes of sexual and natural selection, and genetic drift’s effect on an evolving species over time. The second process, speciation, is closely associated with cladogenesis. Speciation includes the actual separation of lineages, into two or more new species, from one specified species of origin. Cladogenesis can be seen as a similar hypothesis to anagenesis, with the addition of speciation to its mechanisms. Diversity on a species-level is able to be achieved through anagenesis. With collected data, only one or two early hominin were found to be relatively close to the plio-pleistocene range. — Preceding unsigned comment added by Emscott3 (talk • contribs) 18:09, 2 December 2017 (UTC)

Hypotheses
One hypothesis is that during the speciation event in anagenetic evolution, the original populations will increase quickly, and then rack up genetic variation over long periods of time by mutation and recombination in a stable environment. Other factors such as selection or genetic drift will such a significant effect on genetic material and physical traits that a species can be acknowledged as being different from the previous — Preceding unsigned comment added by Emscott3 (talk • contribs) 18:30, 2 December 2017 (UTC)

In Humans
The modern human origins debate caused researchers to look further for answers. Researchers were curious to know if present day humans originated from Africa, or if they somehow, through anagenesis, were able to evolve from a single archaic species that lived in Afro-Eurasia. Milford H. Wolpoff is paleoanthropologist whose work done when studying human fossil records explored anagenesis as a hypothesis for hominin evolution. When looking at anagenesis in hominids, M. H. Wolpoff describes in terms of the ‘single-species hypothesis,’ which is characterized by thinking of the impact that culture has on a species as an adaptive system, and as an explanation to what conditions humans tend live in based on the environmental conditions, or ecological niche. When judging the effect culture has as this adaptive system, scientists must first look the modern Homo sapiens. Wolpoff contended that the ecological niche of past, extinct hominidae is distinct within the line of origin. Examining early Pliocene and late Miocenes findings helps to determine the corresponding importance of anagenesis vs. cladogenesis during the period of morphological differences. These findings propose that branches of the human and chimpanzee once diverged from each other. The hominin fossils go as far as 5 to 7 million years ago (Mya). Diversity on a species-level is able to be achieved through anagenesis. With collected data, only one or two early hominin were found to be relatively close to the plio-pleistocene range. Once more research was done, specifically with the fossils of A. anamensis and A. afarensis, researchers were able to justify that these two hominin species were linked ancestrally. However, looking at data collected by William H. Kimbel and other researchers, they viewed the history of early hominin fossils and concluded that actual macroevolution change via anagenesis was scarce. — Preceding unsigned comment added by Emscott3 (talk • contribs) 18:38, 2 December 2017 (UTC)

Phylogeny
DEM(or Dynamic Evolutionary Map) is a different way to track ancestors and relationships between organisms. The pattern of branching in phylogenetic trees and how far the branch grows after a species lineage has split and evolved, correlates with anagenesis and cladogenesis. However, in DEM dots depict the movement of these different species. Anagenesis is viewed by observing the dot movement across the DEM, whereas cladogenesis is viewed by observing the separation and movement of the dots across the map. — Preceding unsigned comment added by Emscott3 (talk • contribs) 18:40, 2 December 2017 (UTC)