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Criteria for classification as reported in an ancient Chinese encyclopedia (Lakoff 1987):
“…it is written that animals are divided into:
those that belong to the Emperor
embalmed ones
those that are trained
suckling pigs
mermaids
fabulous ones
stray dogs
those that tremble as if they were mad
those that have just broken a flower vase
Taxonomy- the field of science that classifies life into groups
Systematics- studies diversity of life
It is the study and classification of organisms with the goal of reconstructing their evolutionary history
Biological Kingdoms
2 Kingdoms
Traditional view
plants animals
Biological Kingdoms
5 Kingdoms
Whittaker, 1969
Plantae Fungi Animalia
Protista
Monera
Five kingdom system:
Monera Protista FungiPlantae Animalia
Six kingdom system:
Eu-bacteria
Protista FungiPlantae AnimaliaArchae-bacteria
Three domain system:
Eu-bacteria
Archae-bacteria
E U K A R Y A
Eight kingdom system:
Eu-bacteria
Arc
hez
oa
FungiPlantae AnimaliaArchae-bacteria
Ch
rom
ista
Pro
tist
a
Biological Kingdoms
Classification: Six kingdom system:
Eubacteria
Protista
Fungi
Plantae
Animalia
Archaebacteria
E. coli Cyanobacteria
Paramecium Diatom Slime mold
Six kingdom system:
Eu-bacteria
Protista FungiPlantae AnimaliaArchae-bacteria
Monera
Plantae Fungi Animalia
Protista
Monera (Eubacteria & Archaebacteria)
Primary Grouping Criterion
Prokaryotic
Eukaryotic
Cellular complexity
Other Grouping Criteria
Single-celled vs. multicellular
Mode of nutrition
absorption
photosynthesis
ingestion
Plantae Fungi Animalia
Protista
Monera
Note: Criteria can overlapNote: Criteria can overlap
Other Grouping CriteriaMode of Reproduction
sexual
asexual
Respiratory System
gas exchange across skin
lungs
gills
Other Grouping Criteria
Skeleton
internal/external
bone/cartilage/chitin…
Circulatory System
none
open/closed
Age of Systematics
Flair for creative simplicity
1700’s
Carl Linnaeus
Incurable classifier
Linnaeus
Swedish doctor
14 books in 3 years
Fish book: 3,000 pages
Professor of Medicine & Natural History
Linnaeus
1753: published book describing World’s plants
Start of naming process
ID: flowers - number &structure of the parts
Linnaeus
Descriptions: “poetic precision”
Result: easily applied system
2 word names:“binomial nomenclature”
Binomial Nomenclature
2 word name (genus + species)
1st level classification
Loxodonta africanasLoxodonta africanas
Elephas maximusElephas maximus
Tiger = Panthera tigris
Leopard = Panthera pardus
Lion = Panthera leo
Panda Bear = Ailuropoda melanoleuca
Black Bear = Ursus americanus
Polar Bear = Ursus maritimus
Linnaean Hierarchy
KingdomPhylum (or Division)ClassOrderFamilyGenusSpecies
Plantae & FungiPlantae & Fungi
Linnaean Hierarchy
“King Philip came over from Germany stoned.”
Common names
Confusing
Ambiguous
Scientific names
Agreed upon system
Names
• Portuguese Man-of-War
• Bluebottle
• Physalia physalis
Names
Language
Latin or Latinized
Giving names
A highly technical process
Name is author’s choice
Commemorate People
Gardenia jasminoides (Dr. Alexander Garden)Camellia japonica (Joseph Kamel)Strelitzia reginae (Queen Charlotte of Mecklenburg-Strelitz)Siegesbeckia orientalis (Dr. Siegesbeck)
Descriptive
Cardinalis cardinalis (red)Railus aquaticus (watery)Passer domesticus (house)
Geographic Location
Kuhlia sandwicensis (Hawaii)Periplanata americana (American cockroach)Zosterops japonica (Japanese white-eye)
Pronunciation
Divide into syllables
Choose where to place emphasis
Example of Coral Classification
Example of Coral Classification
Kingdom Animalia Phylum Cnidaria
Class AnthozoaOrder Scleractinia
Family FungiidaeGenus Fungia
Species scutaria
Kingdom Animalia Phylum Cnidaria
Class AnthozoaOrder Scleractinia
Family FungiidaeGenus Fungia
Species scutaria
The Mushroom CoralFungia scutaria
The Mushroom CoralFungia scutaria
Biological Species
Organisms that are genetically similar, and have ability to interbreed and produce viable, fertile offspring
Offspring is sterile
mule
horse
donkey
Kingdom Monera
Species number low (~17, 000)
Changing as we learn more
Two Divisions
Eubacteria (Bacteria & Cyanobacteria)
Archaebacteria
Kingdom Monera Prokaryotic
Single-celled
Diverse energy types:
Chemoautotrophic- Purple sulfur bacteriaPhotoautotrophic- cyanobacteriaHeterotrophic- E. coli
Some with cell walls, but cell walls composed of peptidoglycan, not cellulose (as in higher plants).
Asexual reproduction
Kingdom Monera
Kingdom Monera
anthraxanthrax
pneumoniapneumonia cyanobacteriacyanobacteria
Eubacteria
Archaebacteria
Purple sulfur bacteria
Eukaryotic
Generally single-celled; if multicellular, cells not organized into tissues
Heterotrophic & autotrophic forms
Kingdom Protista
~ 45,000 species
3 informal groups
Plant-like (algal) protists
Animal-like protists
Fungus-like protists
Kingdom Protista
Diatoms
Dinoflagellates
Plant-like Protists
• Diatoms
• Dinoflagellates
• Green algae
• Brown Algae
• Red algae
Halimeda opuntia
Chlorophyta: Green Algae
Caulerpa racemosa
Caulerpa sertularioides
Dictyosphaeria cavernosa
Codium edule
Sargassum polyphyllum
Sargassum echinocarpum
Phaeophyta: Brown Algae
Turbinaria ornata
Padina japonicaHydroclathrus clathratus
Hypnea chordacea
Asparagopsis taxiformis
Galaxaura fastigiata
Acanthophora spicifera
Ahnfeltia concinna
Rhodophyta: Red Algae
Amoeba
Cilliates
Flagellates
Animal-like Protists
13,000 species
Fungus-like Protists
475 species
Downey mildew
Slime molds
Mildew
Water molds
Blights
Kingdom PlantaeKingdom PlantaeEukaryotic
Multicellular organisms
True tissues.
Photoautotrophic nutrition.
Most adapted for a terrestrial existence and possessing vascular tissues.
Kingdom PlantaeKingdom Plantae
Cells with chloroplasts and cellulose cell walls.
Includes mosses, ferns, pine trees, cycads, ginkgos, and flowering plants.
Sea grassesKingdom Plantae
Halophilia hawaiiana- only form of seagrass in Hawaii
Mangroves
Kingdom Fungi
Eukaryotic
Generally multicellular, organisms (a few species, e.g., yeast are unicellular).
Nutrition:
Heterotrophic
Saprophytic (absorptive)
Kingdom Fungi
Most with cell walls (usually composed of chitin) and complex life histories.
Includes molds, yeasts, rusts, and mushrooms, marine fungi
Shelf fungus
Yeast
Toad stool
Rhizopus
Fungus infection in fish
Kingdom AnimaliaKingdom Animalia
Eukaryotic
Multicellular organisms
True tissues.
Heterotrophic nutrition
Kingdom AnimaliaKingdom Animalia
Most exhibit significant capacity for locomotion.
Cells not surrounded by cell walls.
Includes sponges, sea anemones, snails, insects, sea stars, fish, reptiles, birds, and human beings.
Phylogentic Relationships of Animals
Ancestral Protist
segmentation
true tissue
radial symmetry
bilateral symmetry
Deuterostomes:eucoelom
Protostome: schizocoelem
pseudocoelom
Porifera
Cnideria
Platyhelminthes
Nematoda
Mollusca
AnnelidaEchinodermata
ChordataArthropoda
no true tissues
acoelom
Phylum Porifera
Class Hexactinellida
Class Calcaria
Class Desmospongia
Purple and yellow tube sponge
Boring sponge
Class Sclerospongia
Phylum Cnidaria
Class Anthozoa
Class Hydrozoa
Class Scyphozoa
Class Cubozoa
CoralsAnemones
HydraPortuguese Man-Of-War
Stinging LimuFire Coral
True jellyfish Box jelliesSea wasps
Phylum Ctenophora
Phylum Platyhelminthes
Phylum Mollusca
Class Polyplacophora
Class Gastropoda
Class Bivalvia
Class Cephalopoda
More than 500,000 known species
chitons Snailsnudibranchs
clams SquidOctopusCuttlefishNautilus
Phylum Mollusca
Well developed circulatory system
Nervous system with brain
Some with good eyes
Three main parts:
• Muscular foot- for movement• Visceral mass- contains most of the
internal organs
• Mantle cavity- houses gills
mantle
foot
visceral mass
• Grazers (radula- scraping tongue)
• Filter feeding
• Egg eaters
• Active predation
Spanish Dancer (nudibranch) & egg mass
Class GastropodaSubclass Opithistobranchia
Class GastropodaSubclass Opithistobranchia
Cone shell
Triton’s trumpet
Cowery Opihi
periwinkle
Class GastropodaSubclass Prosobranchia
Class GastropodaSubclass Prosobranchia
Class PolyplacophoraChitins
Class PolyplacophoraChitins
Class BivalviaClass Bivalvia
Class Cephalopoda
Day octopus
Octopus Intelligence
Mimic octopus from Indonesia
flatfish
lionfish
Sea snake
Blue-ringed octopus
Highly venomous
Phylum Arthropoda
Subphylum trilobita
Subphylum Chelicerata
Subphylum Uniramia
SubphylumCrustacea
trilobites Horseshoe crabSea spidersspiders
Crabs KrillShrimp LobsterIspod amphipod
InsectsMillipedesCentipedeBeetles
Insects, crabs, spiders, barnacles
Most species; 80% are insects
Hard chitin exoskeleton (must shed to grow)
Circulatory system with blood, heart
10,000,000? species
Phylum Arthropoda
Class Crustacea
Banded coral shrimp
Spiny lobster Hawaiian cleaner shrimpYellow spotted guard crab
Anemone carrying hermit crab
Phylum Echinodermata
Class Astroidae
Class Ophiuroidae
Class Echinoidae
Class Holothuroidae
Class Crinoidae
Sea stars Brittle stars
Crinoids
Sea urchins Sea cucumbers
Phylum Echinodermata
No circulatory system
No respiratory system
Excretion (N elimination) by diffusion
Simple nervous system, no brain
Water-vascular system
Phylum Echinodermata
Tube feet & associated plumbing
Used for walking, clinging to substrate & holding food
Water Vascular System
Class Echinoidea: sea urchins
Echinometra mathaei
Colobocentrotus atratus
Echinothrix calamaris
Slate pencil urchin
Collector urchin
Class Holothuroidea: Sea Cucumbers
Holothuria atra
Polyplectana kerfersteninii
Linckia sp.
Acanthaster planci
Class Asteroidea: Sea Stars
Class Ophiuroidea: Brittle Stars
Class Crinoidea: Feather Stars
Phylum Chordata
SubphylumUrochordata
SubphylumCephalochordata
SubphylumVertebrata
tunicates lancets AgnathansFishSharkstetrapods
SubphylumUrochordataSubphylumUrochordata
tunicate
SubphylumCephalochordata
SubphylumCephalochordata
lancet
Phylum Porifera
Class Hexactinellida
Class Calcaria
Class Desmospongia
Purple and yellow tube sponge
Boring sponge
Class Sclerospongia
• No true tissues or organs• No symmetry• No nerves or muscles• Sessile• Reproduce sexually and asexually• Skeletons composed of CaCO3 or SiO2
spicules or spongin• Filter feeders
Consists of organized cells supported by a skeleton of:
• spongin fibers• calcareous spicules• silica spicules• a combination of these, or perhaps no skeletal
structure at all
No GutSponges
Phylum PoriferaSponges
Phylum Porifera
• A few species of fish• seaslugs • hawks bill and loggerhead turtles
• Can use toxins to ward off predators
• Sponges provide habitat for wide variety of animals.
• As many as 16,000 different species of animals have been found in one loggerhead sponge.
Phylum Cnidaria
Class Anthozoa
Class Hydrozoa
Class Scyphozoa
Class Cubozoa
CoralsAnemones
HydraPortuguese Man-Of-War
Stinging LimuFire Coral
True jellyfish Box jelliesSea wasps
Close Up of a Portuguese Man-Of-War
Class Hydrozoa
Class Scyphozoa
Box Jellies
SeawaspClass Cubozoa
Subclass ZoanthariaOrder ActinariaSea Anemones
Class Anthozoa
Subclass HexacoralliaOrder Antipatheria
Black Coral & Wire Coral
Wire coral
Black coral
Class Anthozoa
“True” Stony Coralslobe
finger
mushroom
Porites rus
Class Anthozoa
Phylum Ctenophora
Phylum Platyhelminthes
Phylum Platyhelminthes
Flatworms
Blind digestive cavity
Bilaterally symmetrical
Thin, simple circulation
Sensory organs at front
Many parasitic
10,000 species
flatworm
nudibranch
• Staurosporine
• Tetrodoxin
Pseudoceros dimidiatus
Pseudoceros cf. rubroanus
Pseudoceros ferrugineus
Pseudobiceros sp.
Planocera cf. oligoglena
Phylum Nematoda
Phylum NematodaRoundworms
Primitive body cavity
Gut & Anus
No circulatory system
Nervous system
Very successful- well adapted to every ecosystem
Many are parasites500,000? species
Phylum Nematoda
Phylum Annelida
Class Hirudinea
Class Oligochaeta
Class Polychaeta
earthworms leachesmarine worms
Spaghetti worms
Sabellastarte sanctijosephi
Fireworm
Fan worms (feather duster)
Eurythoe complanata
Christmas tree worm
Spirobranchus giganteus
Lanice conchilega
Phylum Mollusca
Class Polyplacophora
Class Gastropoda
Class Bivalvia
Class Cephalopoda
More than 500,000 known species
chitons Snailsnudibranchs
clams SquidOctopusCuttlefishNautilus
Phylum Mollusca
Well developed circulatory system
Nervous system with brain
Some with good eyes
Three main parts:
• Muscular foot- for movement• Visceral mass- contains most of the
internal organs
• Mantle cavity- houses gills
mantle
foot
visceral mass
• Grazers (radula- scraping tongue)
• Filter feeding
• Egg eaters
• Active predation
Spanish Dancer (nudibranch) & egg mass
Class GastropodaSubclass Opithistobranchia
Class GastropodaSubclass Opithistobranchia
Cone shell
Triton’s trumpet
Cowery Opihi
periwinkle
Class GastropodaSubclass Prosobranchia
Class GastropodaSubclass Prosobranchia
Class PolyplacophoraChitins
Class PolyplacophoraChitins
Class BivalviaClass Bivalvia
Class Cephalopoda
Day octopus
Class Cephalopoda
Octopus Intelligence
Mimic octopus from Indonesia
flatfish
lionfish
Sea snake
Blue-ringed octopus
Highly venomous
Phylogeny of Arthropods
Arthropoda
Worm-likeAncestor
Trilobites(extinct)
Annelids(worms)
Onychophorans(worms w/legs)
Chelicerates(spiders)
Crustaceans(lobsters)
Insects(butterflies)
Insects, crabs, spiders, barnacles
Most species; 80% are insects
Hard chitin exoskeleton (must shed to grow)
Circulatory system with blood, heart
10,000,000? species
Phylum Arthropoda
Existed 550-250 mya
Trilobites
ostracodbrine shrimp
mantis shrimps
copepods
barnacles
Crustacea
Banded coral shrimp
Spiny lobster Hawaiian cleaner shrimpYellow spotted guard crab
Anemone carrying hermit crab
Crustacea
Phylum Echinodermata
Class Astroidae
Class Ophiuroidae
Class Echinoidae
Class Holothuroidae
Class Crinoidae
Sea stars Brittle stars
Crinoids
Sea urchins Sea cucumbers
Phylum Echinodermata
No circulatory system
No respiratory system
Excretion (N elimination) by diffusion
Simple nervous system, no brain
Water-vascular system
Phylum Echinodermata
Tube feet & associated plumbing
Used for walking, clinging to substrate & holding food
Water Vascular System
Class Echinoidea: sea urchins
Echinometra mathaei
Colobocentrotus atratus
Echinothrix calamaris
Slate pencil urchin
Collector urchin
Class Holothuroidea: Sea Cucumbers
Holothuria atra
Polyplectana kerfersteninii
Linckia sp.
Acanthaster planci
Class Asteroidea: Sea Stars
Class Ophiuroidea: Brittle Stars
Class Crinoidea: Feather Stars
Classification
Phylum Chordata
SubphylumUrochordata
SubphylumCephalochordata
SubphylumVertebrata
tunicates lancets AgnathansFishSharkstetrapods
Chordate Characteristics
SubphylumUrochordataSubphylumUrochordata
tunicate
SubphylumUrochordataSubphylumUrochordata
tunicate
SubphylumCephalochordata
SubphylumCephalochordata
lancet
SubphylumCephalochordata
SubphylumCephalochordata
lancet
Hagfish
Class Agnatha
SubphylumVertebrata
Class Agnatha
SubphylumVertebrata
lamprey
Characteristics
• Posses jaws with teeth, cartilaginous skeleton, paired fins• Scales (denticles) have same origin and composition as teeth• Possesses 5-7 gills• Spiral valve intestine• Ureoosmotic strategy• Lateral line• No swim bladder• Heterocercal tail• Relatively unchanged (480 mybp)
Sharks, skates, rays, chimera
Class ChondrichthyesClass Chondrichthyes
Class Chondrichthyes
SubphylumVertebrata
Characteristics• Posses jaws with teeth, bony skeleton, paired fins• 4 paired gill arches covered by operculum• Intestine- simple, no spiral valve• Swim bladder• Lateral line• Homocercal tail• Scales- cycloid, ctenoid
Class OsteichthyesClass Osteichthyes
680 species of fish in the islands' waters.About 30% of these fish are endemic to the area .
Class Osteichthyes
Domino damsel
Trigger (Humu)
Dwarf moray
Porcupine
trumpetfishAchilles tang
White mouthed
morey
Class AmphibiaClass Amphibia
Characteristics
• Cold blooded• Returns to water to breed• Metamorphosis• Some toxic• Estivation-dry and hot• Hibernation- cold
3,500 species
Class AmphibiaClass Amphibia
Rana cancrivora
Class ReptiliaClass Reptilia
Characteristics
• Cold blooded• Have scales• Amniotic egg• Dry skin• 3 chambered heart (except crocks)
6,500 species
Class ReptiliaClass Reptilia
Sea snake
Marine turtle
Marine iguana
Saltwater crocodile
Class AvesClass Aves
Characteristics
• Warm blooded• Feathers and wings• Hollow bones• Horny bill• Lungs have air sacks• Hard egg shell
Class AvesClass Aves
Class MammaliaClass Mammalia
Characteristics
• Warm blooded• Have fur or hair• Suckle young• 3 middle ear bones
Class MammaliaClass Mammalia
Dugong
manatee
Sea otter
Whales & Dolphins
Polar bear
Seals & sealions
Inquiry
1. What is the difference between a prokaryote and eukaryote?
2. Which kingdoms are prokaryote and which are eukaryote?
3. Define a species.
4. How do fungus feed?
5. What are some key characteristics of mammals?
6. Which class of cnideria are true jellyfish?
7. Name four mollusk classes.