The professor gives examples of the effects of elephants on the African grasslands habitat. Using the examples from the talk, explain why elephants

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

Performance on vocabulary words:
No of characters: 719.0 592.248995984 121% => OK
No of words: 168.0 155.574297189 108% => OK
Chars per words: 4.27976190476 3.80514564318 112% => OK
Fourth root words length: 3.60020574368 3.525876923 102% => OK
Word Length SD: 2.08145323329 1.79077849142 116% => OK
Unique words: 109.0 93.7148594378 116% => OK
Unique words percentage: 0.64880952381 0.604071249207 107% => OK
Syllable count: 219.6 185.844578313 118% => OK
Avg_syllables_per_word: 1.3 1.19417670683 109% => OK

Performance on coherence:
Topic speech coherence ratio: 0.0589951013687 0.0650381309087 91% => OK

Acoustic performance on paragraphs:
How many acoustic paragraphs: 3.0 4.35341365462 69% => OK
Average paragraph length: 56.0 68.503853103 82% => OK
STD paragraph length: 43.8482230731 21.3332995233 206% => Paragraph length changes often.
Average paragraph duration: 19.61 25.9943957902 75% => OK
STD paragraph duration: 14.3696369706 7.84667146824 183% => OK

Acoustic performance on sentences:
How many acoustic sentences: 33.0 42.0642570281 78% => OK
Average acoustic sentence length: 5.09090909091 4.02192344571 127% => OK
STD acoustic sentence length: 3.7607513463 3.1217529195 120% => OK
Average acoustic sentences duration: 1.70090909091 1.45093177766 117% => OK
STD acoustic sentences duration: 1.10312603647 0.99851816184 110% => OK

Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 27.0 39.0421686747 69% => OK
Total acoustic silence duration: 5.96 7.12997991968 84% => OK
Average acoustic silence duration: 0.220740740741 0.185688545393 119% => OK
STD acoustic silence duration: 0.167595764243 0.155154303396 108% => OK

Acoustic performance on acoustic words:
Total word duration: 47.43 47.1480722892 101% => OK
Average word duration: 0.282321428571 0.305395592593 92% => OK
STD word duration: 0.143302764795 0.189427763521 76% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 2.0 7.94979919679 25% => Good job, the lower, the better.
Total_disfluencies_duration: 1.36 6.2937751004 22% => Good job. The lower, the better.
Total acoustic noise duration: 3.4 3.39508032129 100% => OK

Acoustic rates:
Total speech duration: 58.83 59.7592369478 98% => OK
Compare to expected duration: 0.9805 0.995987282463 98% => OK
Rate of silence: 0.458949515553 0.656000678711 70% => OK
Rate of speech: 2.85568587455 2.60215298798 110% => OK
Rate of speech by unique words: 1.85279619242 1.56821927147 118% => OK
Rate of word duration by unique words: 2.2981235505 1.99336655568 115% => OK
Average articulation rates: 0.348901309524 0.317803793328 110% => OK

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Rates: 90.0 out of 100
Scores by speech e-grader: 27.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.