Populations of the yellow cedar, a species of tree that is common in northwestern North America, have been steadily declining for more than a century now, since about 1880. Scientists have advanced several hypotheses to explain this decline.One hypothesis

Both the reading passage and lecture discuss about possible cause for reduction of yellow ceder population. While the author presents several hypotheses regarding this matter, the lecturer holds the view that these theories are not enough to explain this phenomenon.

First of all, the author states that yellow ceder may be destroyed by insect parasites like bark beetle. However, the author argues that healthy yellow cedar are resistant to insects as they are saturated with some chemicals which are poisonous to insects. So, insect can only attack yellow ceder which are already damaged or sick and thus the lecturer asserts that insects can not be fundamental reason of decrement of yellow ceder.

Secondly, according to the passage, cedar bark contains much sugar that can attract brown bears and bears often claw at cedars to eat bark which weaken and ultimately kills yellow cedars. On contrast, the lecturer refutes this hypotheses and mentions that it could not be the reason of decline in overall population of cedar species. He points out to the fact that cedars are also declining in islands where bear does not exist. Thus, the authors point fails to prove that bears are responsible for the decline.

Finally, the author brings up the idea that gradual weather change plays a pivotal role in destruction of yellow cedars. Surface roots of this species are now growing in late winter and eventually frozen, which deteriorates health of the whole tree. On the other hand, the lecturer mentions that trees in both lower and higher elevation are declining, though weather in lower elevation is much warmer. Thus, it disproves the theory of declination of yellow ceder due to climate change.

Votes
Average: 8.8 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 5, column 223, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...dars. On contrast, the lecturer refutes this hypotheses and mentions that it could n...
^^^^

Transition Words or Phrases used:
also, finally, first, however, may, regarding, second, secondly, so, thus, while, first of all, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 19.0 22.412803532 85% => OK
Preposition: 35.0 30.3222958057 115% => OK
Nominalization: 8.0 5.01324503311 160% => OK

Performance on vocabulary words:
No of characters: 1434.0 1373.03311258 104% => OK
No of words: 279.0 270.72406181 103% => OK
Chars per words: 5.13978494624 5.08290768461 101% => OK
Fourth root words length: 4.08696624509 4.04702891845 101% => OK
Word Length SD: 2.38180066263 2.5805825403 92% => OK
Unique words: 165.0 145.348785872 114% => OK
Unique words percentage: 0.591397849462 0.540411800872 109% => OK
syllable_count: 436.5 419.366225166 104% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK

Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 33.2505283136 49.2860985944 67% => OK
Chars per sentence: 110.307692308 110.228320801 100% => OK
Words per sentence: 21.4615384615 21.698381199 99% => OK
Discourse Markers: 8.69230769231 7.06452816374 123% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 4.0 4.27373068433 94% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.169966591259 0.272083759551 62% => OK
Sentence topic coherence: 0.062259970014 0.0996497079465 62% => OK
Sentence topic coherence SD: 0.0349171571606 0.0662205650399 53% => OK
Paragraph topic coherence: 0.103253872389 0.162205337803 64% => OK
Paragraph topic coherence SD: 0.0345564424549 0.0443174109184 78% => OK

Essay readability:
automated_readability_index: 13.5 13.3589403974 101% => OK
flesch_reading_ease: 50.16 53.8541721854 93% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 12.53 12.2367328918 102% => OK
dale_chall_readability_score: 8.81 8.42419426049 105% => OK
difficult_words: 73.0 63.6247240618 115% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.4 10.498013245 99% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?

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Rates: 88.3333333333 out of 100
Scores by essay e-grader: 26.5 Out of 30
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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.