Behavior
... performs activities that benefit others because this will ultimately be beneficial. ...
... performs activities that benefit others because this will ultimately be beneficial. ...
The success of alternative reproductive tactics in
... and worker brood from the four colonies confirmed to contain diploid males are presented in Table 1. Widi die exception of one odd genotype in colony E-262, in all four colonies the cohort of workers produced in the previous fall showed genotype distributions consistent with monogyny. Because some s ...
... and worker brood from the four colonies confirmed to contain diploid males are presented in Table 1. Widi die exception of one odd genotype in colony E-262, in all four colonies the cohort of workers produced in the previous fall showed genotype distributions consistent with monogyny. Because some s ...
No Slide Title
... selection favors somatic maintenance for only as long as an average opossum can be expected to live. ...
... selection favors somatic maintenance for only as long as an average opossum can be expected to live. ...
Interspecific Adoption of Orphaned Nests by Polistes Paper Wasps
... species, either Polistes carolina (L.) or Polistes perplexus Cresson. These two species are distinctive by virtue of their red color and are easily recognized among the Missouri paper wasp fauna, yet they can be distinguished from one another only by close examination. Both have been recorded at the ...
... species, either Polistes carolina (L.) or Polistes perplexus Cresson. These two species are distinctive by virtue of their red color and are easily recognized among the Missouri paper wasp fauna, yet they can be distinguished from one another only by close examination. Both have been recorded at the ...
Deciphering The Communicative Rosetta Stone
... The frequent congruity of plant and animal natural products is striking, as is the fact that the same classes of low molecular weight compounds are often emphasized by both groups of organisms. Thus, mono terpene aldehydes and hydrocarbons, quinones, Ct, ,B-unsaturated aldehydes, and aliphatic acids ...
... The frequent congruity of plant and animal natural products is striking, as is the fact that the same classes of low molecular weight compounds are often emphasized by both groups of organisms. Thus, mono terpene aldehydes and hydrocarbons, quinones, Ct, ,B-unsaturated aldehydes, and aliphatic acids ...
Critical Periods:
... How does the behavior of male and female garter snakes reflect changes in development of the gonads and secretion of gonadal steroids? – at emergence from hibernation, the level of gonadal steroids are low, the size of gonads are small, and the formation of mature gametes is low (true for males and ...
... How does the behavior of male and female garter snakes reflect changes in development of the gonads and secretion of gonadal steroids? – at emergence from hibernation, the level of gonadal steroids are low, the size of gonads are small, and the formation of mature gametes is low (true for males and ...
COOPERATIVE FORAGING FOR LARGE PREY BY PARATEMNUS
... Population genetic models predict female-biased sex ratios in inbred populations since an excess of females acts to reduce local mate competition, i.e., competition for mates between related male offspring (see Hamilton 1967). Comparative data on a variety of species demonstrate a strong empirical l ...
... Population genetic models predict female-biased sex ratios in inbred populations since an excess of females acts to reduce local mate competition, i.e., competition for mates between related male offspring (see Hamilton 1967). Comparative data on a variety of species demonstrate a strong empirical l ...
1. What did recursion recurse?
... As with predications, and in striking contrast to the signals in other ACSs, recruitment signals in ants can be shown to require concatenation. Holldobler (1971) demonstrated this experimentally in Camponotus socius, an ant that first uses shaking behavior to draw recruits and then follows a chemic ...
... As with predications, and in striking contrast to the signals in other ACSs, recruitment signals in ants can be shown to require concatenation. Holldobler (1971) demonstrated this experimentally in Camponotus socius, an ant that first uses shaking behavior to draw recruits and then follows a chemic ...
Lecture 6 - life.illinois.edu
... a. they detect the presence of the horizon b. they detect impending collisions c. they detect the presence of an overhead swarm d. they detect approaching predators 14. True or false: Locusts can eat their own weight in food in a day. 15. The area constituting the usual habitat of S. gregaria is cal ...
... a. they detect the presence of the horizon b. they detect impending collisions c. they detect the presence of an overhead swarm d. they detect approaching predators 14. True or false: Locusts can eat their own weight in food in a day. 15. The area constituting the usual habitat of S. gregaria is cal ...
Insect taxonomic diversity
... THE SMALLER INSECT ORDERS. THEY ARE LONG, SLENDER, FLATTENED INSECTS THAT COME IN VARIOUS SHADES OF BROWN OR BLACK. ...
... THE SMALLER INSECT ORDERS. THEY ARE LONG, SLENDER, FLATTENED INSECTS THAT COME IN VARIOUS SHADES OF BROWN OR BLACK. ...
Animal Behavior
... __________________________________ (the fraction of genes that, on average, are shared; r) • Natural selection favors altruism when: This inequality is called _____________________________ – _________________________ is the natural selection that favors this kind of altruistic behavior by enhanc ...
... __________________________________ (the fraction of genes that, on average, are shared; r) • Natural selection favors altruism when: This inequality is called _____________________________ – _________________________ is the natural selection that favors this kind of altruistic behavior by enhanc ...
Insect populations—locusts
... biotic potential is full reproductive potential without limits 6. Carrying capacity is (choose a or b): a. the number of viable eggs or embryos that a particular female can carry b. the number of individuals that a particular habitat can sustain given its resources 7. Classify the following mortalit ...
... biotic potential is full reproductive potential without limits 6. Carrying capacity is (choose a or b): a. the number of viable eggs or embryos that a particular female can carry b. the number of individuals that a particular habitat can sustain given its resources 7. Classify the following mortalit ...
Predation of Ants and Termites by Army Ants - PPBio
... second opening in the soil, more or less 10 m away from the first opening. Another raid, with many more ants in comparison to the first one, and this time carrying termite immatures, came from inside the adjacent primary forest, situated at a distance of about 5-6 m. This raid also disappeared into ...
... second opening in the soil, more or less 10 m away from the first opening. Another raid, with many more ants in comparison to the first one, and this time carrying termite immatures, came from inside the adjacent primary forest, situated at a distance of about 5-6 m. This raid also disappeared into ...
Parasitism is ubiquitous and most organisms are host to one or more
... studying a tractable social parasitic system. Social parasitism, the exploitation of a society by other social organisms, is widespread across social insects, birds, spiders and other animals.1,2,3 The host’s fitness may suffer to varying degrees, depending on the resource acquired (e.g. food, webbi ...
... studying a tractable social parasitic system. Social parasitism, the exploitation of a society by other social organisms, is widespread across social insects, birds, spiders and other animals.1,2,3 The host’s fitness may suffer to varying degrees, depending on the resource acquired (e.g. food, webbi ...
Evolution of life histories: fixing the theory
... Consider an example: cost and profit functions for reproduction in migrating salmonids The initial effort required to spawn even one egg is the enormous cost of migration from deep ocean to upstream fresh water. Thus the curve rises very sharply at low reproductive effort. However, the additional c ...
... Consider an example: cost and profit functions for reproduction in migrating salmonids The initial effort required to spawn even one egg is the enormous cost of migration from deep ocean to upstream fresh water. Thus the curve rises very sharply at low reproductive effort. However, the additional c ...
pdf
... the ultimate fitness of individuals in the colony depending on the relative fitness of males compared to new queens and their respective relatedness to focal individuals. Importantly, Luque, Giraud & Courchamp (2013) show how component Allee effects can interact with other frequency-dependent effect ...
... the ultimate fitness of individuals in the colony depending on the relative fitness of males compared to new queens and their respective relatedness to focal individuals. Importantly, Luque, Giraud & Courchamp (2013) show how component Allee effects can interact with other frequency-dependent effect ...
Rotho pascuorum paper
... et al.’s work also differs from ours in finding no significant effect of non-cropped areas. ...
... et al.’s work also differs from ours in finding no significant effect of non-cropped areas. ...
Reproductive Biology of Elasmobranchs
... Carrier JC, Murru FL, Walsh MT & Pratt HL. 2003. Assessing reproductive potential and gestation in nurse sharks (Ginglymostoma cirratum) using ultrasonography and endoscopy: an example of bridging the gap between field research and captive studies. Zoo. ...
... Carrier JC, Murru FL, Walsh MT & Pratt HL. 2003. Assessing reproductive potential and gestation in nurse sharks (Ginglymostoma cirratum) using ultrasonography and endoscopy: an example of bridging the gap between field research and captive studies. Zoo. ...
Genetics and Other Mechanisms Affecting Behavior
... flocks of about 20 individuals as early as late June, and the flock size continues to increase to over 60 prior to southerly migration. Probably, the earliest birds to become members of a postbreeding flock were nonbreeders or “floaters” in the population. Similarly, why do turkey (Cathartes aura) a ...
... flocks of about 20 individuals as early as late June, and the flock size continues to increase to over 60 prior to southerly migration. Probably, the earliest birds to become members of a postbreeding flock were nonbreeders or “floaters” in the population. Similarly, why do turkey (Cathartes aura) a ...
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).