Living in Groups Benefits of Group Living Costs of Group Living
... Damas lead to lowered reproductive success? Is there an advantage to status in this species? If not, why does the behavior exist? • Are complex courtship/mating behaviors more prevalent in groups? Possibly developed to avoid random mating? ...
... Damas lead to lowered reproductive success? Is there an advantage to status in this species? If not, why does the behavior exist? • Are complex courtship/mating behaviors more prevalent in groups? Possibly developed to avoid random mating? ...
Bees, their lives and beekeeping
... workers feed and incubate the brood and perform other tasks within the nest. • After the queen’s second batch of eggs has hatched, the workers produced from the first batch are ready to help their mother to look after the new larvae. • The colony increases in size, some will rear 300-400 workers dur ...
... workers feed and incubate the brood and perform other tasks within the nest. • After the queen’s second batch of eggs has hatched, the workers produced from the first batch are ready to help their mother to look after the new larvae. • The colony increases in size, some will rear 300-400 workers dur ...
Nov. 19
... Stingers are modified ovipositors so only females sting Most stinging females are not reproductive Stinger itself can be a problem but mostly it’s the venom Hymenopteran families of most medical significance are: – Ants • Formicidae – Social ...
... Stingers are modified ovipositors so only females sting Most stinging females are not reproductive Stinger itself can be a problem but mostly it’s the venom Hymenopteran families of most medical significance are: – Ants • Formicidae – Social ...
Chapter 6 Primate Behavior
... Reproduction and Reproductive Strategies Mothers, Fathers and Infants ...
... Reproduction and Reproductive Strategies Mothers, Fathers and Infants ...
25_ParentalCare2
... Asynchrony in hatching (birth order) can promote or reduce sibling conflict and parental favoritism ...
... Asynchrony in hatching (birth order) can promote or reduce sibling conflict and parental favoritism ...
EUSOCIALITY IN AFRICAN MOLE
... Burde et al. (2000) argue that AFDH is not sufficient to explain social evolution in molerats, and instead they suggest that social behaviour of mole-rats is a result of a social common ancestor of the family. Even though eusociality may be the ancestral state of all mole-rats, such approach doesn’t ...
... Burde et al. (2000) argue that AFDH is not sufficient to explain social evolution in molerats, and instead they suggest that social behaviour of mole-rats is a result of a social common ancestor of the family. Even though eusociality may be the ancestral state of all mole-rats, such approach doesn’t ...
(Part 2) Kin selection
... The evolution of eusociality • in eusocial species some individuals forego reproduction to aid in the rearing of others. • most common in the Hymenoptera (ants, bees, and wasps) Three characteristics of eusociality: 1. overlapping generations of parents and their offspring 2. cooperative brood care ...
... The evolution of eusociality • in eusocial species some individuals forego reproduction to aid in the rearing of others. • most common in the Hymenoptera (ants, bees, and wasps) Three characteristics of eusociality: 1. overlapping generations of parents and their offspring 2. cooperative brood care ...
The basics of kin selection theory Kin selection theory has
... helping efforts (food provisioning and period of helping) when rearing full sibs than when rearing half-sibs (Komdeur 1994). Overall, these results demonstrate that, as predicted by kin selection, individuals are more likely to help kin than non-kin and that the level of altruism increases with rela ...
... helping efforts (food provisioning and period of helping) when rearing full sibs than when rearing half-sibs (Komdeur 1994). Overall, these results demonstrate that, as predicted by kin selection, individuals are more likely to help kin than non-kin and that the level of altruism increases with rela ...
Table of Contents - Milan Area Schools
... • Together, individual fitness and kin selection determine the inclusive fitness of an individual. ...
... • Together, individual fitness and kin selection determine the inclusive fitness of an individual. ...
The Hormonal and Genetic Basis for Caste Differentiation in Termites
... anal feeding is believed to play a large role in the social behavior of the termites. In this paper recent and earlier experiments are reviewed to give an overview on what is know about caste determination and regulation. This will cover both hormonal regulation as well as theoretical models of gene ...
... anal feeding is believed to play a large role in the social behavior of the termites. In this paper recent and earlier experiments are reviewed to give an overview on what is know about caste determination and regulation. This will cover both hormonal regulation as well as theoretical models of gene ...
Ant Anatomy
... In both large and small colonies, ants divide up work tasks within the colony, such as digging tunnels, rearing the brood, collecting food, and laying eggs. This division of labor means that each ant is a specialist, performing some but not all of the various tasks needed for colony life. While dif ...
... In both large and small colonies, ants divide up work tasks within the colony, such as digging tunnels, rearing the brood, collecting food, and laying eggs. This division of labor means that each ant is a specialist, performing some but not all of the various tasks needed for colony life. While dif ...
Evolution of altruism
... Wilson & Hölldobler 2005 • Superiority of colony life over solitary life (b may be much greater than c) ...
... Wilson & Hölldobler 2005 • Superiority of colony life over solitary life (b may be much greater than c) ...
chapter39_Animal Behavior(5
... • Calling a behavior “adaptive” does not mean “morally right,” it means a behavior increases reproductive success • Example: Infanticide is morally repugnant, but it happens in all human cultures – when mothers lack resources to care for their children, they are more likely to harm them • Evolutiona ...
... • Calling a behavior “adaptive” does not mean “morally right,” it means a behavior increases reproductive success • Example: Infanticide is morally repugnant, but it happens in all human cultures – when mothers lack resources to care for their children, they are more likely to harm them • Evolutiona ...
The Behavior of Ants
... How do ants live together in a nest? How do they distinguish company from others? How can they make processions with accuracy? Some biologists and entomologists have investigated these questions and found the following answers. The social organization of ants is very remarkable. Each of their coloni ...
... How do ants live together in a nest? How do they distinguish company from others? How can they make processions with accuracy? Some biologists and entomologists have investigated these questions and found the following answers. The social organization of ants is very remarkable. Each of their coloni ...
File - Mrs. LeCompte
... Foraging results in more energy for the animal (and makes them more likely to reproduce), but puts the animal at risk (and less likely to reproduce) Animals often have to make trade-offs when foraging Reproductive Strategies and Fitness Polygamous = when a single male mates with multiple females ...
... Foraging results in more energy for the animal (and makes them more likely to reproduce), but puts the animal at risk (and less likely to reproduce) Animals often have to make trade-offs when foraging Reproductive Strategies and Fitness Polygamous = when a single male mates with multiple females ...
The Ecology of Finding a Place to Live
... The cost of defending the area: if around a resource ◦ How many competitors? ◦ How dispersed is the resource? ◦ How predictable is resource? ...
... The cost of defending the area: if around a resource ◦ How many competitors? ◦ How dispersed is the resource? ◦ How predictable is resource? ...
Habitat and Niche (Butterflies, Moths, Wasps, Bees, and Ants)
... • You will explore the West campus ecosystem searching for Hymenopterans and Lepidopterans. • You will be responsible for locating three different species of either Hymenoptera or Lepidoptera. • You will describe where you found the individual insect, its appearance (take a picture if you like), and ...
... • You will explore the West campus ecosystem searching for Hymenopterans and Lepidopterans. • You will be responsible for locating three different species of either Hymenoptera or Lepidoptera. • You will describe where you found the individual insect, its appearance (take a picture if you like), and ...
european paper wasp - Department of Entomology
... areas such as under the bark of dead trees, in hollow trees, within wall voids of houses, under siding and occasionally within the cells of a paper wasp nest. Although most nests are newly constructed each year, the queens will sometimes use a previous year’s nest, thereby establishing their colonie ...
... areas such as under the bark of dead trees, in hollow trees, within wall voids of houses, under siding and occasionally within the cells of a paper wasp nest. Although most nests are newly constructed each year, the queens will sometimes use a previous year’s nest, thereby establishing their colonie ...
Termites are soft-bodied insects from the order Isoptera, meaning
... order lsoptera is also the only insect order to be comprised solely of social insects. As social insects, termites sub-divide their colonies into separate classes, or castes. These castes play separate and important roles in the survival of the species. Because of these social behaviors, termites ha ...
... order lsoptera is also the only insect order to be comprised solely of social insects. As social insects, termites sub-divide their colonies into separate classes, or castes. These castes play separate and important roles in the survival of the species. Because of these social behaviors, termites ha ...
http://cs
... alike female large male more colorful polygynous = one male mates with multiple females promiscuous = both males and females have multiple mates in a given reproductive season monogamous provide care to their offspring often mating systems may vary within species display cooperative breeding share t ...
... alike female large male more colorful polygynous = one male mates with multiple females promiscuous = both males and females have multiple mates in a given reproductive season monogamous provide care to their offspring often mating systems may vary within species display cooperative breeding share t ...
Eusociality
Eusociality (Greek eu: ""good/real"" + ""social""), the highest level of organization of animal sociality, is defined by the following characteristics: cooperative brood care (including brood care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labour into reproductive and non-reproductive groups. The division of labor creates specialized behavioral groups within an animal society which are sometimes called castes. Eusociality is distinguished from all other social systems because individuals of at least one caste usually lose the ability to perform at least one behavior characteristic of individuals in another caste.Eusociality exists in certain insects, crustaceans and possibly mammals. It is mostly observed and studied in the Hymenoptera (ants, bees, and wasps) and in the termites. For example, a colony has caste differences; queens and reproductive males take the roles as the sole reproducers while the soldiers and workers work together to create a living situation favorable for the brood. In addition to Hymenoptera and Isoptera, there are two known eusocial vertebrates from the order Rodentia, which includes the naked mole-rat and the Damaraland mole-rat. Most of the individuals cooperatively care for the brood of a single reproductive female (the queen) to which they are most likely related. Some shrimps such as Synalpheus regalis are also eusocial.Several other levels of animal sociality have been distinguished. These include presocial (solitary but social), subsocial, and parasocial (including communal, quasisocial, and semisocial).