SPECIES INTERACTIONS SPECIES INTERACTIONS. COMPETITION What do organisms compete for?

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Presentation transcript:

SPECIES INTERACTIONS SPECIES INTERACTIONS

COMPETITION What do organisms compete for?

2 Types of Competition Intraspecific Intraspecific Occurs between members of the same species Occurs between members of the same species Interspecific Interspecific Occurs between members of different species. Occurs between members of different species.

COMPETITION GAUSE

CONNELLCONNELL

REDUCING COMPETITION BY RESOURCE PARTITIONING BATS EAT THE INSECTS IN THE AIR, LIZARDS EAT THE INSECTS ON THE GROUND Finches Different species need same resources MacArthur

Resource Sharing can lead to CHARACTER DISPLACEMENT Differences develop between similar species due to competition Similar species need similar or same resources Large beaked can eat all size seeds, but will eat larger to reduce competition With those that can only eat small or medium

PREDATION and

Species Interactions Predator - Prey Predator/Prey Relationships Predator/Prey Relationships Cheetah and Wildebeest ch?v=rXO3h6bpEUU&feature =related Cheetah and Wildebeest ch?v=rXO3h6bpEUU&feature =related ch?v=rXO3h6bpEUU&feature =related ch?v=rXO3h6bpEUU&feature =related Baboom/Flamingo ch?v=b995_dC6iDM Baboom/Flamingo ch?v=b995_dC6iDM ch?v=b995_dC6iDM ch?v=b995_dC6iDM

Physiological

Structural

Coral Snake Scarlet King (venomous) (non-venomous) Red next to Black - safe for Jack; Red next to Yellow - kill any fellow. ViceroyMonarch (edible)(inedible) Mimicry Mimic Octopus Mimic Octopus m/watch?v=7Zh50pfG7 d8 m/watch?v=7Zh50pfG7 d8 m/watch?v=7Zh50pfG7 d8 m/watch?v=7Zh50pfG7 d8

(a)A flower mantid in Malaysia (b)A stick mantid in Africa Cryptic Coloration

PLANT - HERBIVORE Poison Ivy Carrion Flower

Plants for Medicinal Purposes cleanser anemia Good sleep Laxative (skin) Diarrhea (no skin) Soothes Or laxative

SYMBIOSIS 3 types: 3 types: Parasitism Parasitism Mutualism Mutualism Commensalism Commensalism

PARASITISM Ectoparasites Endoparasites Maggots in my head =V2Ac6RYSvo8&feature=channel Maggots in my head =V2Ac6RYSvo8&feature=channel =V2Ac6RYSvo8&feature=channel =V2Ac6RYSvo8&feature=channel Parasite in Lungs =Im_5xQu5GbA&feature=channel Parasite in Lungs =Im_5xQu5GbA&feature=channel =Im_5xQu5GbA&feature=channel =Im_5xQu5GbA&feature=channel

MUTUALISM Caterpillar and ant z3bWqlPLpMg Caterpillar and ant z3bWqlPLpMg z3bWqlPLpMg z3bWqlPLpMg Buffalo and Egret 8BEKrc-aXF8 Buffalo and Egret 8BEKrc-aXF8 8BEKrc-aXF8 8BEKrc-aXF8

COMMENSALISM Shark and Remora atch?v=e4xrdeagyYM Shark and Remora atch?v=e4xrdeagyYM atch?v=e4xrdeagyYM atch?v=e4xrdeagyYM

SUCCESSION

Primary Succession =k03vxRYsJ4Y =k03vxRYsJ4Y nature/crisafulli-blast-zone.html nature/crisafulli-blast-zone.html nature/crisafulli-blast-zone.html nature/crisafulli-blast-zone.html

Secondary Succession