Warm-up (9/3) Please take a pink sheet from the student desk (front of the room). In your composition book EXPLAIN competition and predation. Provide examples if necessary.

Community Interaction

Competition Review What is it? More than one organism uses the same resource at the same time. *Competing for same resources* Example Niche competition

Predation Review What is it? When one organism hunts and kills another. Predator vs. Prey Predator: The attacker Prey: The attacked—dead Prey Adaptations Morphological features (Camouflage, spines, mimicking, etc.) Chemical Defenses Behavior (living in groups, scouts, alarm calls) Caterpillar with Venomous Spines Meerkat’s have specific behavior and morphological features to protect them from predators

Predation Review Examples Lion and Zebra Grey Wolf and Elk Orcas and Seals

Part 1 Review: Organisms and their Relationships Symbiosis Symbiosis: The relationship that exists when two or more species live together in which at least one species benefits. Types of Symbiosis: Mutualism Commensalism Parasitism

Symbiotic relationships Part 1: Organisms and their Relationships Symbiotic relationships Mutualism: When both organisms benefit Lichens Commensalism: One organism benefits, while the other is neither helped nor harmed. Epiphytes (i.e., Bromeliads) Parasitism: One organism benefits at the expense of the other. Parasitoid wasp eggs on a tomato hornworm

Mutualism A relationship in which BOTH SPECIES BENEFIT

Commensalism A relationship in which ONE SPECIES BENEFITS and the other is NOT AFFECTED (Not helped or harmed)

Parasitism A relationship in which ONE SPECIES BENEFITS and the other is HARMED OR KILLED

Create and Fill in this table Part 1 Reflection: Organisms and their Relationships Create and Fill in this table Type of Relationship Species harmed Species benefited Species neutral Mutualism Commensalism Parasitism = 1 species

Mistletoe and Spruce Tree Mistletoe extracts water and nutrients from the spruce tree, harming it

Honey Guide Bird and Badger Honey guide birds alert and direct badgers to bee hives. The badgers expose the hives and feed on the honey first, then the honey guide bird gets to eat.

Cowbird and Bison As buffalos walk through the grass, insects become active and are eaten by the cowbirds

Ostrich and Gazelle Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since their visual abilities are different, each can identify threats that the other might not detect.

Remora and Shark Remoras attach themselves to a shark’s body. They then travel with the shark and feed on the shark’s leftover food scraps

Oxpecker and Rhinoceros Oxpeckers eat the ticks from the rhino’s body.

Bee and Maribou Stork The stork uses its saw-like bill to cut up dead animals to eat. The bees then use the dead animal’s body for food and to lay eggs

Mouse and Flea A flea feeds on the mouse’s blood, which harms it.

Silverfish and Army Ants Silverfish live and hunt behind the army ants, and share the prey.

Wrasse Fish and Black Sea Bass Wrasse fish feed on the parasites found on the black sea bass’ body

Hermit Crab and Snail Shell Hermit crabs live in shells made and then abandoned by snails

Deer and Tick Ticks feed on the deer’s blood, which harms it.

Barnacle and Whale Barnacles attach themselves to the whale’s body, creating a traveling home.

Yucca Plant and Yucca Moth Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers and eat the seeds.