Arctic deer live on islands in Canada's arctic regions. They search for food by moving over ice from island to island during the course of the year. Their habitat is limited to areas warm enough to sustain the plants on which they feed and cold enough, at least some of the year, for the ice to cover the sea separating the islands, allowing the deer to travel over it. Unfortunately, according to reports from local hunters, the deer populations are declining. Since these reports coincide with recent global warming trends that have caused the sea ice to melt, we can conclude that the purported decline in deer populations is the result of the deer's being unable to follow their age-old migration patterns across the frozen sea.
Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.
The author proposes that the decline in deer population in Canada’s artic regions is the result of the deer’s not being able to follow their traditional migration pattern over sea ice. The author states that this is the effect of sea ice metlting in this region due to global warming. However, the above argument needs further evidence to draw the above conclusion.
The argument relates the melting sea ice to decline in deer’s popultion. However it does not specify about the timming of the melt. It is possible that this trend happens in summer, when enough plants are available for the deer’s in thier location and they need not migrate over to other islands.
Secondly, There is no evidence stated whether the melting of sea ice takes place on the age-old migration patterns. It is possible that the reported sea ice melt could be an average taken over the entire artic region and not of the specific migration areas. The author also does not consider the plant growth over the deer’s migration areas. It is possible that the sea ice and the plant growth stays intact and it might not be the reason for deer’s population decline. If any of the above has merit, the argument does not hold water.
The decline in deer’s popultion could be due to other factors such as over-hunting of deer’s by the local hunters. Or it could be due to the rise of disease amongst the deer popultion.
In conlcusion, the arguemnt as it stands is considerbly flawed due to reliance on several unwanted assumptions. If the author is able to collect further )evidence on above three areas(perhaps in the form of an research study) then it is possible to evaluate the reasons for decline in deer’s population.
Comments
e-rater score report
Attribute Value Ideal
Final score: 4.0 out of 6
Category: Good Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 15 15
No. of Words: 294 350
No. of Characters: 1370 1500
No. of Different Words: 135 200
Fourth Root of Number of Words: 4.141 4.7
Average Word Length: 4.66 4.6
Word Length SD: 2.368 2.4
No. of Words greater than 5 chars: 102 100
No. of Words greater than 6 chars: 72 80
No. of Words greater than 7 chars: 42 40
No. of Words greater than 8 chars: 18 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 19.6 21.0
Sentence Length SD: 7.126 7.5
Use of Discourse Markers (%): 0.467 0.12
Sentence-Text Coherence: 0.374 0.35
Sentence-Para Coherence: 0.43 0.50
Sentence-Sentence Coherence: 0.082 0.07
Number of Paragraphs: 2 5
Grammar and spelling errors:
Line 2, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...vidence to draw the above conclusion. The argument relates the melting sea ice...
^^
Line 2, column 76, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: However,
...sea ice to decline in deer’s popultion. However it does not specify about the timming o...
^^^^^^^
Line 5, column 178, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... collect further evidence on above three areasperhaps in the form of an research ...
^^
Line 5, column 208, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
...bove three areasperhaps in the form of an research study then it is possible to e...
^^
Transition Words or Phrases used:
also, however, if, second, secondly, so, then, such as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 15.0 19.6327345309 76% => OK
Auxiliary verbs: 5.0 12.9520958084 39% => OK
Conjunction : 5.0 11.1786427146 45% => More conjunction wanted.
Relative clauses : 6.0 13.6137724551 44% => More relative clauses wanted.
Pronoun: 18.0 28.8173652695 62% => OK
Preposition: 42.0 55.5748502994 76% => OK
Nominalization: 18.0 16.3942115768 110% => OK
Performance on vocabulary words:
No of characters: 1421.0 2260.96107784 63% => OK
No of words: 294.0 441.139720559 67% => More content wanted.
Chars per words: 4.83333333333 5.12650576532 94% => OK
Fourth root words length: 4.14082457966 4.56307096286 91% => OK
Word Length SD: 2.51182588687 2.78398813304 90% => OK
Unique words: 138.0 204.123752495 68% => More unique words wanted.
Unique words percentage: 0.469387755102 0.468620217663 100% => OK
syllable_count: 439.2 705.55239521 62% => OK
avg_syllables_per_word: 1.5 1.59920159681 94% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 4.96107784431 60% => OK
Article: 8.0 8.76447105788 91% => OK
Subordination: 3.0 2.70958083832 111% => OK
Conjunction: 1.0 1.67365269461 60% => OK
Preposition: 1.0 4.22255489022 24% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 15.0 19.7664670659 76% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 19.0 22.8473053892 83% => The Avg. Sentence Length is relatively short.
Sentence length SD: 42.0632328234 57.8364921388 73% => OK
Chars per sentence: 94.7333333333 119.503703932 79% => OK
Words per sentence: 19.6 23.324526521 84% => OK
Discourse Markers: 3.6 5.70786347227 63% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 4.0 5.25449101796 76% => OK
Sentences with positive sentiment : 4.0 8.20758483034 49% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 6.88822355289 58% => More negative sentences wanted.
Sentences with neutral sentiment: 7.0 4.67664670659 150% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.13782378923 0.218282227539 63% => OK
Sentence topic coherence: 0.0497782443979 0.0743258471296 67% => OK
Sentence topic coherence SD: 0.0459486743316 0.0701772020484 65% => OK
Paragraph topic coherence: 0.0826210976133 0.128457276422 64% => OK
Paragraph topic coherence SD: 0.0385535149418 0.0628817314937 61% => OK
Essay readability:
automated_readability_index: 11.1 14.3799401198 77% => Automated_readability_index is low.
flesch_reading_ease: 60.65 48.3550499002 125% => OK
smog_index: 3.1 7.1628742515 43% => Smog_index is low.
flesch_kincaid_grade: 9.5 12.197005988 78% => OK
coleman_liau_index: 10.73 12.5979740519 85% => OK
dale_chall_readability_score: 8.23 8.32208582834 99% => OK
difficult_words: 68.0 98.500998004 69% => More difficult words wanted.
linsear_write_formula: 8.0 12.3882235529 65% => OK
gunning_fog: 9.6 11.1389221557 86% => OK
text_standard: 10.0 11.9071856287 84% => OK
What are above readability scores?
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Rates: 50.0 out of 100
Scores by essay e-grader: 3.0 Out of 6
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.