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Ch 13 Arthropoda diversity Insecta

Zoology 212 Lecture notes on insecta
Course

Zoology (BIOL 212)

28 Documents
Students shared 28 documents in this course
Academic year: 2022/2023
Uploaded by:
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Saginaw Valley State University

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1 B2. Hexapods have 6 legs, uniramous appendages, mandibles, 3 tagmata, and Malpighian tubules. head thorax abdomen By far the most speciose group of arthropods [85%], their radiation appears to be correlated with the origins and diversity of vascular plants. 1 2 Insects are terrestrial and aerial; thus gills and the green glands of crustaceans are not functional. Malpighian tubules produce uric acid. doctortee Malpighian tubules are also present in other terrestrial arthropods: arachnids, chilopods, diplopods, tardigrades. Trachael system for respiration 2 relative few # Of

Suphylum Herapoda retapods

but notinsects Class Insecta

####### 1Pr antennae

  • "Kickneys" ~ spiders also have then legs attacked -Osmoregulatey ↓ errestrial bifcreated trachael system
  • Similal to our windpipe structure

malDiguing

t

3 The head is a fusion of 5-7 segments with 1 pair of antenna. wiki.bugwood/Insect_Biology En.wikipedia blog.chinadaily.com Male moth 3 4 The insect thorax is a fusion of 3 segments and constructed of sclerites. The thorax is responsible for locomotion. forewing hindwing wiki.bugwood/Insect_Biology Which segments hold the wings? 4 many sets of paired appanges attachment of Wings

  • most 2 pair of Wings

7

The abdomen supports very few appendages in extant

insects but not so in extinct groups, a 2nd evolutionary trend.

ovipositor stinger

Extant species

cerci

Paleozoic fossil

7

8

Complete metamorphosis reduces intraspecific competition

by shifting individuals to different microhabitats, food

sources, and temporal schedules.

  1. Incomplete [hemimetabolous] mun/biology/desmid/bri an/BIOL3530/DEVO_13/ch13f18
  2. Complete [holometabolous] 40-60% of all insects
  3. Ametabolous development [wingless insects] No inactive stage of development Wings appear externally

8

very few

Paired pendages

tarY

en IS SI

pend a

- pendas

F

"loSS

↓

defense

venomi

M - modified

Ovipositor

egg positioner

Hetapods

thatarent

metamorphoris

Insects

Embryo larva Pupa A Cul NO larval stage

fills

same

Niche Nymph

- Cant satually reproduce

9 Diversity of behaviors, defenses, communication modes, life histories, and ecologies is difficult to summarize. Waggle dance youtube/watch?v=-7ijI-g4jHg Eusociality and caste system Bioluminescence Sound and parasitism Crypsis: defense strategy Aposematic coloration OK..’ll mimic you. 9 10 One hypothesis of extant arthropod relationships. A. Chelicerata Arthropoda B. Mandibulata

  1. horseshoe crabs
  2. spiders, ticks
  3. scorpions B1. Myriapoda
  4. millipedes
  5. centipedes B2. Pancrustacea
  6. crustaceans
  7. insects 10 +Black

pigmen-brown or black NO

vertabrata not brown color- Enzymatic Incifer ase

  • Communication hidden I'm bright - dangerous remain A not be seer
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Ch 13 Arthropoda diversity Insecta

Course: Zoology (BIOL 212)

28 Documents
Students shared 28 documents in this course

University: Saginaw Valley State University

Was this document helpful?
1
1
B2. Hexapods have 6 legs, uniramous appendages,
mandibles, 3 tagmata, and Malpighian tubules.
head thorax abdomen
By far the most speciose group of arthropods [85%], their radiation appears
to be correlated with the origins and diversity of vascular plants.
1
2
Insects are terrestrial and aerial; thus gills and the green
glands of crustaceans are not functional.
Malpighian tubules produce uric acid.
www.doctortee.com
Malpighian tubules are also present in
other terrestrial arthropods: arachnids,
chilopods, diplopods, tardigrades.
Trachael system for respiration
2
relative
few
#
Of
Suphylum
Herapoda
retapods
but
not
insects
Class
Insecta
1Pr
antennae
-
"Kickneys"
~
spiders
also
have
then
legs
attacked
-Osmoregulatey
↓
errestrial
bifcreated
trachael
system
-
Similal
to
our
windpipe
structure
malDiguing
t

Students also viewed

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