Carrying Capacity. 2.4-2.7. Abiotic and Biotic Factors Work Together to Influence Population Size. The growth of individuals and increase in size of populations is regulated by available resources . Resources are limited.By camden-davenport
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Dispersal. Movement of species leading to range expansion Hotly debated Dispersalists vs. Extensionists Continental drift changed debate Long-distance distance dispersal vs. vicariance Read Box 6.1. Diffusion Dispersal. Slow expansion from previous range into new areas
Dispersal. Dispersal. How would you define dispersal?. Dispersal. Organism moves away from parent or current population. Adaptations for dispersal. Air & Wind. Air & Wind. Water. Launched. Birds. Mammals. Why is it important to disperse?. How can we explain that pattern?.
Dispersal. Diffusion. Gradual movement Over several generations. California Sea Otter. Thought to be extinct in 1911 Found at Point Sur in 1914 More rapid southern expansion. Jump Dispersal. Example: oceanic islands Mostly by volant organisms (flight) ex.: Galapagos Islands
GEOG2202 – The Biosphere. Dispersal . Robert Kinlocke Department of Geography and Geology UWI, Mona. Introduction . Species evolve in specific areas As the number of individuals increase the resources necessary to sustain them diminish
Dispersal . Landscape Ecology. Definitions. Dispersal Spreading of individuals away from others Migration Mass directional movements of large numbers of species from one location to another. Question/Comments. Do all species disperse?. Yes… Some by choice, some by chance
SEED DISPERSAL. BY THE HOT CHILLIES. OUR PROBLEM. The P5 pupils went on a Learning Journey to Little India. A group of pupils spotted a young plant growing from a crack in the building while taking photographs of some buildings. “How did the plant get there?” wondered Peter.
SEED DISPERSAL. By: Adam, Marcus, Zi Yi, Denise MADZ :D. Different types of seed dispersal. Dispersal by water Dispersal by wind Dispersal by splitting/explosion Dispersal by animals. Dispersal by water. The seeds are encased in a with a fibrous husk
Dispersal Models. General Module B2 Spatial Modelling in Ecology, 5 ECTS Aims Develop programming skills Implement , apply and critically assess computer models Understand the role of spatial processes for ecosystem dynamics Confronting models with data Content
Seed Dispersal. Unit 2 Topic 3 Science 7 Monday, September 1, 2014. What you already know …. Plant reproduction Cones/flowers Pollination Fertilization Seed / Fruit production Next topic Seed dispersal. What makes up a seed?. Seed coat Cotyledon (food) Embryo Leaf Stem Root.