'Reproductive effort' diaporamas de présentation

Sexual Selection

Sexual Selection. Sex and the Marine Environment. What is sexual selection? Natural Selection : Differential reproductive success due to variation among individuals in survival and reproduction. What is sexual selection? Darwin (1871) defined sexual selection as:

864 views • 45 slides

Life History Trade-offs

Life History Trade-offs. LH Trade-offs. Trade-offs have a central role in life history theory Trade-offs have been experimentally manipulated in both the lab and field, measured as phenotypic correlations, or genetic correlations. Life-history Trade-offs.

659 views • 42 slides

Lec 10: Fish

Lec 10: Fish. I. Fish Research and Limnology II. Taxonomy and Systematics III. Species Richness IV. Life History V. Growth VI. Fisheries and Yield VII. Local Fisheries. 1. I. Fish Research and Limnology. A. Traditionally: A species focus & in isolation

560 views • 32 slides

322 views • 32 slides

ANIMAL REPRODUCTIVE STRATEGIES

ANIMAL REPRODUCTIVE STRATEGIES. THE ULTIMATE GOAL OF EACH SPECIES. From CAPS. Content Diversity of reproductive strategies Appropriate examples of different groups in the animal kingdom to illustrate maximising reproductive success in different environments:

289 views • 28 slides

404 views • 27 slides

6 Reproduction, Dispersal, and Migration

6 Reproduction, Dispersal, and Migration. Notes for Marine Biology: Function, Biodiversity, Ecology By Jeffrey S. Levinton. Sex and Reproduction. IS SEX NECESSARY? WE MUST SEPARATE SEX AND REPRODUCTION?

279 views • 24 slides

Urban Plants as Genetic Reservoirs or Threats to the Integrity of Bushland Plant Populations

Urban Plants as Genetic Reservoirs or Threats to the Integrity of Bushland Plant Populations. Presented by Shannon Slivinske. Urban plants- contributing to plant conservation, or further threatening the gene pool?.

337 views • 19 slides

Life length and ageing

Life length and ageing. Selection for increased life length? Selection is strong prior to reproduction Selection is relaxed thereafter What is ageing (senescence)? Accumulation of mutations Reduced selection after reproduction Reproduce once / several times? Semelparity/monocarpy

318 views • 18 slides

Life length and ageing

Life length and ageing. Selection for increased life length? Selection is strong prior to reproduction Selection is relaxed thereafter What is ageing (senescence)? Accumulation of mutations Reduced selection after reproduction Reproduce once / several times? Semelparity/monocarpy

181 views • 18 slides