american museum - AMNH Library Digital Repository
... avicularium to the pincer-like form and vibracula to the bristle-like form, and he realized that however diverse their appearance, they were all constructed on the same general design. He emphasized their importance as systematic characters, particularly in the encrusting calcified forms then lumped ...
... avicularium to the pincer-like form and vibracula to the bristle-like form, and he realized that however diverse their appearance, they were all constructed on the same general design. He emphasized their importance as systematic characters, particularly in the encrusting calcified forms then lumped ...
2014 Ant Venom Review Toxicon v9
... ants, Pachycondyla goeldii (Orivel et al., 2001), P. apicalis, P. inversa (Orivel, 2000) and P. ...
... ants, Pachycondyla goeldii (Orivel et al., 2001), P. apicalis, P. inversa (Orivel, 2000) and P. ...
Effect of red imported fire ant (Solenopsis invicta Buren) on the
... Table 3.3. Mean number of Aphaenogaster fulva-rudis-texana from food traps at Idlewild Experimental Research Station for each sampling period .............................................................64 Table 3.4. Mean number of Crematogaster ashmeadi from food traps at Idlewild Experimental Rese ...
... Table 3.3. Mean number of Aphaenogaster fulva-rudis-texana from food traps at Idlewild Experimental Research Station for each sampling period .............................................................64 Table 3.4. Mean number of Crematogaster ashmeadi from food traps at Idlewild Experimental Rese ...
Potential impact of the Argentine ant (Linepithema humile) in New
... Although frequently associated with human settlement, L. humile is not restricted to modified habitats and is present in native vegetation in a number of locations (e.g. HawaiiReimer 1993, CaliforniaWay et al. 1997, South AfricaGiliomee 1986). In Hawaii, L. humile is present in undisturbed montan ...
... Although frequently associated with human settlement, L. humile is not restricted to modified habitats and is present in native vegetation in a number of locations (e.g. HawaiiReimer 1993, CaliforniaWay et al. 1997, South AfricaGiliomee 1986). In Hawaii, L. humile is present in undisturbed montan ...
Cooperation
... are raised within the victorious nests, and colonies that lose their brood in such interactions die. Within groups, all co-founding queens in a nest assist in excavating their living quarters, and each produce approximately the same number of offspring. (Table 9.5) ...
... are raised within the victorious nests, and colonies that lose their brood in such interactions die. Within groups, all co-founding queens in a nest assist in excavating their living quarters, and each produce approximately the same number of offspring. (Table 9.5) ...
Evolutionary Trends in the Individuation and
... The phrase “division of labor” was coined by Adam Smith (1776) to describe how various tasks are distributed within human economies. Biologists later co-opted the term to describe similar pattern of labor organization observed in the biological world. Social insects societies, such as those of the a ...
... The phrase “division of labor” was coined by Adam Smith (1776) to describe how various tasks are distributed within human economies. Biologists later co-opted the term to describe similar pattern of labor organization observed in the biological world. Social insects societies, such as those of the a ...
Host selection by the cleaner shrimp Ancylomenes pedersoni: Do
... to constitute an advantage for A. pedersoni, individual shrimp would need to benefit from the aggregation (e.g., if the mean rate of food intake per individual shrimp increased in stations with several A. pedersoni compared with those with only one or two shrimp). Symbiotic decapods associated with s ...
... to constitute an advantage for A. pedersoni, individual shrimp would need to benefit from the aggregation (e.g., if the mean rate of food intake per individual shrimp increased in stations with several A. pedersoni compared with those with only one or two shrimp). Symbiotic decapods associated with s ...
Female dominance in mouse lemurs
... influencing factors of marking. In general, both sexes of gray mouse lemurs marked more frequently than Goodman´s mouse lemurs, and in both species the marking behavior of females, but not of males, was clearly influenced by season with higher female marking rates during the reproductive season. In ...
... influencing factors of marking. In general, both sexes of gray mouse lemurs marked more frequently than Goodman´s mouse lemurs, and in both species the marking behavior of females, but not of males, was clearly influenced by season with higher female marking rates during the reproductive season. In ...
2. Naked mole-rats - INDIGO @ UIC - University of Illinois at Chicago
... Thomas J. Park, Biological Sciences Christopher J. Whelan, Biological Sciences and Illinois Natural History Survey i ...
... Thomas J. Park, Biological Sciences Christopher J. Whelan, Biological Sciences and Illinois Natural History Survey i ...
How to be a fig wasp parasite on the fig–fig wasp
... process has just begun to be investigated. Unlike pollinators, whose larval nutrition mainly derives from hypertrophied seed endosperm [23], NPFW gallers cause hypertrophy of the ovary nucellus which does not require pollination of the flowers [24]. The molecular mechanism of galling is completel ...
... process has just begun to be investigated. Unlike pollinators, whose larval nutrition mainly derives from hypertrophied seed endosperm [23], NPFW gallers cause hypertrophy of the ovary nucellus which does not require pollination of the flowers [24]. The molecular mechanism of galling is completel ...
The Hoary Marmot of the North Cascades in Washington
... members. However, this is not always the case because the social system of hoary marmots is not as rigidly defined. They exhibit a loose dominance hierarchy as interactions among males, females, yearlings, and juveniles do not always follow a pattern. The only predictable interactions are those betw ...
... members. However, this is not always the case because the social system of hoary marmots is not as rigidly defined. They exhibit a loose dominance hierarchy as interactions among males, females, yearlings, and juveniles do not always follow a pattern. The only predictable interactions are those betw ...
introduction to the study of entomology
... myriapodologists, and crustaceans are studied by carcinologists (also known as malacostracologists or crustaceologists). Recent phylogenetic studies have placed organisms previously included in the class Insecta, such as diplurans (order Diplura), proturans (order Protura) and springtails (order Col ...
... myriapodologists, and crustaceans are studied by carcinologists (also known as malacostracologists or crustaceologists). Recent phylogenetic studies have placed organisms previously included in the class Insecta, such as diplurans (order Diplura), proturans (order Protura) and springtails (order Col ...
Density-body mass relationships: Inconsistent
... values given by Damuth's law (Fig. 2, Table 3). Population density and body mass showed weak correlations in the humus-feeding termites in all sites (Table 3) which is likely to be due to variations in population density with little variation in body mass (Fig. 2). The non-significant population dens ...
... values given by Damuth's law (Fig. 2, Table 3). Population density and body mass showed weak correlations in the humus-feeding termites in all sites (Table 3) which is likely to be due to variations in population density with little variation in body mass (Fig. 2). The non-significant population dens ...
The Ecology and Population structure of the invasive Yellow Crazy
... Invasive organisms are found in a vast variety of taxa, including marine and terrestrial vertebrates and invertebrates, plants and fungi. The term ‘biological invasion’ usually refers to the ecologically harmful establishment of anthropogenically introduced organisms, regardless whether the organism ...
... Invasive organisms are found in a vast variety of taxa, including marine and terrestrial vertebrates and invertebrates, plants and fungi. The term ‘biological invasion’ usually refers to the ecologically harmful establishment of anthropogenically introduced organisms, regardless whether the organism ...
pdf
... Characterizing habitat choice is essential for endangered species conservation. For the endangered Grevy’s zebra (Equus grevyi), as with many widely ranging vertebrates, human activities may be an important factor affecting space use. Grevy’s zebras are grazing ungulates inhabiting the savannahs of ...
... Characterizing habitat choice is essential for endangered species conservation. For the endangered Grevy’s zebra (Equus grevyi), as with many widely ranging vertebrates, human activities may be an important factor affecting space use. Grevy’s zebras are grazing ungulates inhabiting the savannahs of ...
Interactions between extrafloral nectaries, aphids and ants: are there
... Extrafloral nectar was collected directly from the extrafloral nectary using a microcapillary (volume 0.5 µl). We used only plants where the nectar was removed 2 h before collection. By this means, we tried to reduce the bias in sugar concentration resulting from evaporation processes in the nectar ...
... Extrafloral nectar was collected directly from the extrafloral nectary using a microcapillary (volume 0.5 µl). We used only plants where the nectar was removed 2 h before collection. By this means, we tried to reduce the bias in sugar concentration resulting from evaporation processes in the nectar ...
Solenopsis richteri - Ministry for Primary Industries
... Both monogyne and polygyne forms of S. richteri occur. In S. richteri (and other members of the S. saevissima species group) specific amino acid substitutions in a gene are associated with the expression of monogyny or polygyny (Ross et al. 2003). These substitutions are hypothesized to alter the ab ...
... Both monogyne and polygyne forms of S. richteri occur. In S. richteri (and other members of the S. saevissima species group) specific amino acid substitutions in a gene are associated with the expression of monogyny or polygyny (Ross et al. 2003). These substitutions are hypothesized to alter the ab ...
endophytic fungi are not welcome in leaf
... The purpose of interaction trials between garden fungi and endophytic fungi was to rapidly assess whether the fungal cultivar inhibited growth of a wide range of endophytic fungi in vitro. We were unable to perform the reverse experiment, to see whether endophytic fungi affect the ants’ cultivar gro ...
... The purpose of interaction trials between garden fungi and endophytic fungi was to rapidly assess whether the fungal cultivar inhibited growth of a wide range of endophytic fungi in vitro. We were unable to perform the reverse experiment, to see whether endophytic fungi affect the ants’ cultivar gro ...
Intracolonial demography, biomass and Macrotermes natalensis (Haviland) (Isoptera: Termitidae) colonies in the
... (thermoregulation), and improved division of labour as polyethism (division in tasks) and cooperation becoming more highly evolved (Wilson 1972). Systematics and classification of termites Eusocial societies, such as those of termites, are usually typified by division of labour (reproductive suppres ...
... (thermoregulation), and improved division of labour as polyethism (division in tasks) and cooperation becoming more highly evolved (Wilson 1972). Systematics and classification of termites Eusocial societies, such as those of termites, are usually typified by division of labour (reproductive suppres ...
Myrmecophily in beetles (Coleoptera): evolutionary patterns and
... siphon off liquid food during stomodeal trophallaxis between workers (JANET 1897), and are thus manifestly socially parasitic. However, these species are a minority, and most ant-associated mites appear simply to be phoretic, or to a lesser extent, ectoparasitic on individual ants, rather than actua ...
... siphon off liquid food during stomodeal trophallaxis between workers (JANET 1897), and are thus manifestly socially parasitic. However, these species are a minority, and most ant-associated mites appear simply to be phoretic, or to a lesser extent, ectoparasitic on individual ants, rather than actua ...
Biologia, ecologia i efectes de la formiga Lasius neglectus
... nest, always with workers. From data obtained in increase in dry weight and fat contents from eclosion until mating time, it was demonstrated that L. neglectus queens can reproduce through dependent colony founding even though the value obtained from the proportion of the mesosome ratio from queens ...
... nest, always with workers. From data obtained in increase in dry weight and fat contents from eclosion until mating time, it was demonstrated that L. neglectus queens can reproduce through dependent colony founding even though the value obtained from the proportion of the mesosome ratio from queens ...
Anoplolepis gracilipes
... This dissertation focuses on food preference, foraging behaviour, inter- and intraspecific aggression behaviour as well as control of Anoplolepis gracilipes (Fr. Smith). Various factors that influence the feeding preferences of A. gracilipes were investigated. Anoplolepis. gracilipes preferred brown ...
... This dissertation focuses on food preference, foraging behaviour, inter- and intraspecific aggression behaviour as well as control of Anoplolepis gracilipes (Fr. Smith). Various factors that influence the feeding preferences of A. gracilipes were investigated. Anoplolepis. gracilipes preferred brown ...
Domain:Eukaryota Kingdom:Animalia Phylum:Porifera
... Porifera are commonly referred to as sponges. Most sponges are found in oceans, although some groups are found in fresh waters such as lakes. They were the first group of animals that has specialized cells to do special jobs. However, the cells are not so advanced as to form tissues. Sponges live si ...
... Porifera are commonly referred to as sponges. Most sponges are found in oceans, although some groups are found in fresh waters such as lakes. They were the first group of animals that has specialized cells to do special jobs. However, the cells are not so advanced as to form tissues. Sponges live si ...
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).