Breeding pair insect. True breeding pairs are rare in amphibians or reptiles, although the Australian Shingleback is one exception with long-term pair-bonds. Some fish form short term pairs and the French angelfish is thought to pair-bond over a long term. True breeding pairs are quite common in birds. Breeding pair arrangements are rare in mammals, where the prevailing patterns are either that the male and female only meet for copulation (e.g. brown bear) or that dominant males have a harem of females (e.g. walrus). Breeding pair Breeding pair is a pair of animals which cooperate over time to produce offspring with some
Capital and income breeding of season, it is predicted that capital breeding will be more prevalent, as the time when the organism is not breeding but when conditions are still favourable will be dedicated to rebuilding stores, therefore allowing them to achieve higher rates of reproduction. Capital breeding also increases with size (at least in organisms with optimal storage and indeterminate growth), as the energy dedicated to growth gives less and less return, thus meaning that energy dedicated to storage will have more return compared to that dedicated to growth. But, in eastern grey kangaroos, capital breeding is used during times of food scarcity,