declining of yellow cedars

Based on the given materials, the article as well as the lecture discuss yellow cedars, which are well-known species of trees in North America and have been on the decline for several decades. The author states that there are several viable theories of this decreasing in population. That being said, the lecturer provides several ideas to repudiate this claim.
Initially, the author says that insect parasites might be a cause for this decline, especially the species called cedar bark beetle as their larvae eat the wood and damage the tree. However, the lecturer explains that this cannot be true owing to the fact that the barks and leaves of such trees are full of poisonous chemical which could be deadly to insects. Also, in the example of existing insects in dead trees, such trees had been damaged before, and the insects can not be the cause for the decline.
Second, the writer proclaims that aggressive demanding of brown bears for yellow cedar's bark with lots of sugar content which are a essential of the bear's diet, might be another reason for damaging the tree follows the decline. Yet again, the speaker underscores that decreasing in population of the trees had been seen in both mainland and island area, with the fact that there are no bears on the island. So, hurts which occurred by brown bears are not the fundamental reason for the demise.
The final point of contention between the reading and listening passages is global warming. The author thinks that changing in climate lings the growing process of yellow cedar trees by affecting the sensitive part of them, roots.

Votes
Average: 8.3 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 3, column 131, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
...rk with lots of sugar content which are a essential of the bears diet, might be a...
^

Transition Words or Phrases used:
also, however, second, so, well, as to, as well as

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

Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 31.0 30.3222958057 102% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 1331.0 1373.03311258 97% => OK
No of words: 271.0 270.72406181 100% => OK
Chars per words: 4.91143911439 5.08290768461 97% => OK
Fourth root words length: 4.05734859645 4.04702891845 100% => OK
Word Length SD: 2.28602476655 2.5805825403 89% => OK
Unique words: 150.0 145.348785872 103% => OK
Unique words percentage: 0.553505535055 0.540411800872 102% => OK
syllable_count: 396.0 419.366225166 94% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK

Performance on sentences:
How many sentences: 11.0 13.0662251656 84% => 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: 24.0 21.2450331126 113% => OK
Sentence length SD: 49.0722186642 49.2860985944 100% => OK
Chars per sentence: 121.0 110.228320801 110% => OK
Words per sentence: 24.6363636364 21.698381199 114% => OK
Discourse Markers: 4.54545454545 7.06452816374 64% => 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: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.144025219326 0.272083759551 53% => OK
Sentence topic coherence: 0.0486370895077 0.0996497079465 49% => OK
Sentence topic coherence SD: 0.0696973173158 0.0662205650399 105% => OK
Paragraph topic coherence: 0.0895990296094 0.162205337803 55% => OK
Paragraph topic coherence SD: 0.0422433936124 0.0443174109184 95% => OK

Essay readability:
automated_readability_index: 14.0 13.3589403974 105% => OK
flesch_reading_ease: 55.58 53.8541721854 103% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 11.49 12.2367328918 94% => OK
dale_chall_readability_score: 8.96 8.42419426049 106% => OK
difficult_words: 71.0 63.6247240618 112% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?

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Rates: 83 out of 100
Scores by essay e-grader: 25 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.