@article {444,
	title = {Tests for sex differences in fitness-linked traits in the spider Agelenopsis aperta (Araneae: Agelenidae)},
	journal = {Journal of Insect Behavior},
	volume = {7},
	year = {1994},
	note = {ZOOR13100049255},
	month = {1994},
	pages = {517-532},
	abstract = {The idea that traits linked to individual fitness may differ between males and females was tested in the desert funnel-web spider, Agelenopsis aperta. The study entailed comparison of juvenile male and female behavior with respect to three traits previously shown to be linked to female body mass and ultimately to individual female fitness: habitat discrimination, territorial behavior, and agonistic behavior. As juveniles, male and female spiders behave similarly: they utilize the same habitat cues in locating web sites, maintain similar territory sizes, and exhibit the same behavior patterns in territorial disputes. Like females, males that obtain the highest-quality web sites achieve a greater body mass and are more likely to survive to maturity.},
	keywords = {Agelenopsis aperta (Araneae)., Agelenopsis aperta [Weight / / Fitness indicator, Animal constructions, Behaviour, Biometrics, Carrizozo, comparative test of, comparative test of sexual differences] [Natural, comparative tests for sex differences]., differences] [Agonistic behaviour / / Link to fitness indicator \& tests, Ecology, Evolution, Fitness linked traits, for sex differences] [Territoriality / / ] [Survival / / Body mass, for sex differences] [Webs / / Site selection, Habitat utilization, Land zones, link to fitness \& test, Nearctic region, North America, Population dynamics, preference / / Web site quality discrimination, relations \& linked behavioural traits, Reproduction, selection / / Fitness linked behavioural traits, Sex differences, sex differences in linked traits] [Behavioural sex differences / /, test of sex differences] [Habitat, tests for sex, USA, USA] [New Mexico / /},
	isbn = {0892-7553},
	url = {<Go to ISI>://ZOOREC:ZOOR13100049255},
	author = {Singer, Fred and Riechert, Susan E.}
}
@article {388,
	title = {A test for correlations among fitness-linked behavioural traits in the spider Agelenopsis aperta (Araneae, Agelenidae)},
	journal = {Animal Behaviour},
	volume = {46},
	year = {1993},
	note = {ZOOR13000019876},
	month = {1993},
	pages = {669-675},
	abstract = {The spider Agelenopsis aperta, exhibits a suite of behavioural traits that are functionally dissimilar but which all potentially could be influenced by inherent levels of {\textquoteright}fear{\textquoteright} and {\textquoteright}aggression{\textquoteright}: agonistic behaviour, territory size, foraging behaviour, and anti-predatory behaviour. Previous findings suggest that in A. aperta, agonistic behaviour and territory size are phenotypically correlated at both the individual and population levels, as are foraging and anti-predator behaviour patterns. In this study first anti-predatory and then agonistic trials were completed on two sets of spiders (wild and laboratory-reared F1 generation) from each of two populations (desert grassland and riparian) to test for an inter-connection between these two sets of traits. Spider scores in the anti-predatory fear test were an accurate predictor of the outcome of contests between individuals that were matched for weight but that had different fear scores. This entire set of traits may have the same underlying genetic basis as pleiotropic effects of the same genes. However, quantitative genetic studies are required to test this hypothesis.},
	keywords = {/ / ] [Grassland / / ] [Arizona / / South eastern, Agelenopsis aperta (Araneae): [Prey]., Agelenopsis aperta [Natural selection / / Correlation between fitness, Behaviour, behaviour / / Antipredator response, behaviour] [Predators / / ] [Desert habitat / / ] [Forest and woodland, correlation with agonistic, desert grassland \& woodland] [Avoidance, desert grassland]., Ecology, Evolution, Habitat, Land zones, linked behavioural traits, Mexico / / South central, Nearctic region, North America, Terrestrial habitat, USA, USA] [Agonistic behaviour / / Correlation, with antipredator response, woodland] [New},
	isbn = {0003-3472},
	url = {<Go to ISI>://ZOOREC:ZOOR13000019876},
	author = {Riechert, Susan E. and Hedrick, Ann V.}
}
@article {368,
	title = {Interactions between the social spider Anelosimus studiosus (Araneae, Theridiidae) and foreign spiders that frequent its nests},
	journal = {Journal of Arachnology},
	volume = {35},
	year = {2007},
	note = {ZOOR14309061080},
	month = {2007},
	pages = {143-152},
	abstract = {Because competition for resources generally leads to the spatial exclusion of species using similar resources, it is surprising that foreign spider species are frequently observed in or near the nests of the social spider, Anelosimus studiosus (Hentz 1850) (Theridiidae). In this study, we quantified the frequency of A. studiosus-foreign spider co-occurrence and completed experiments designed to explain the nature of the host-foreign spider species associations. Four families were numerically prominent nest associates of A. studiosus: Salticidae, Anyphaenidae, Araneidae and Tetragnathidae. These families and the Agelenidae (intermediate association rate) and (Philodromidae) (infrequent association rate) were subjected to further study. In choice trials, no foreign spider family discriminated nest silk or A. studiosus, itself, from the foliage the nest is built in. Predation events and maximum inter-individual spacing were significant outcomes of induced pair-wise interactions between host and foreign spiders for all families. Predation events were almost exclusively foreign on host. Field census results show that a close correspondence exists between the rate of loss of A. studiosus nests over time and the association rate of anyphaenids and agelenids at particular sites: these two families were the prominent predators on A. studiosus in laboratory trials. In reciprocal predation tests, juveniles suffered less predation in the presence of a mother; in the reciprocal trials, mothers also suffered less predation from foreign spiders when juveniles were present.},
	keywords = {[Associations / Anelosimus studiosus (Arachnida) / Foreigner, / ]., America, Anelosimus studiosus (Araneae): [Prey]., Anelosimus studiosus [Associations / Araneae (Arachnida) / Foreigner, Animal constructions, Araneae (Arachnida): [Predator]., Araneae [Arachnid prey / Anelosimus studiosus / Intraguild predation, Araneae / Intraguild predation events in nests, Associations, benefits of interactions] [Alabama / / ] [Florida / / ] [Tennessee /, cooccurrences in nests \& costs \& benefits of interactions, cooccurrences with hosts in nests \& interaction costs \& benefits]., Diet, Ecology, events in prey nests, Florida \&, foreigner cooccurrence \&, interaction cost-benefits] [Nests / / Foreigner cooccurrences \& costs \&, Land zones, loss \& foreigner cooccurrence relationships] [Arachnid predators /, Nearctic region, North, Nutrition, Population dynamics, predator-prey cooccurrence relationships, Predators, Prey, Tennessee] [Population censuses / Nest status censuses / Rate of nest, USA, USA]},
	isbn = {0161-8202},
	url = {<Go to ISI>://ZOOREC:ZOOR14309061080},
	author = {Perkins, T. Alex and Riechert, Susan E. and Jones, Thomas C.}
}
@article {26,
	title = {Molecular evidence for Pleistocene glacial cycles driving diversification of a North American desert spider, Agelenopsis aperta},
	journal = {Molecular Ecology},
	volume = {13},
	year = {2004},
	note = {ZOOR14101006872},
	month = {2004},
	pages = {3453-3465},
	abstract = {The influence of historical climatic vs. geological changes on species diversification patterns was investigated in a widely distributed North American desert spider, Agelenopsis aperta (Araneae: Agelenidae), with particular reference to Pleistocene glacial cycles and earlier patterns of mountain building. Levels of sequence divergence obtained from the mitochondrial gene, cytochrome oxidase I, dated to the Pleistocene, eliminating Rocky Mountain orogeny as a cause of diversification, as orogeny ended 4 million years ago. The results of phylogenetic and network analyses showed the presence of three geographically defined clades, which were consistent with the presence of at least three glacial refugia: (i) east of the Rocky Mountains; (ii) between the Rocky Mountains and Sierra Nevadas; and (iii) west of the Sierra Nevadas. In addition, populations within the Rocky Mountains exhibited significantly lower genetic diversity than populations east of the Rocky Mountains and the haplotypes found within the Rockies were a subset of eastern haplotypes. These patterns suggest that a post-Pleistocene range expansion occurred out of an eastern glacial refugium into the Rocky Mountains. Examination of phylogeographical studies of other North American desert taxa indicated that mountain building explained diversification patterns more effectively for some taxa but Pleistocene climate change was more important for others, including A. aperta.},
	keywords = {Abiotic factors, Agelenopsis aperta (Araneae): [Fossil]., Agelenopsis aperta [Enzymes / Cytochrome oxidase I mtDNA gene sequence /, Biochemistry, Caenozoic, Diversification patterns, diversification patterns] [North America / / ] [Pleistocene / / ]., Evolution, Genetics, Geological time periods, influence of climatic vs geological, influences] [Molecular genetics / / ] [Population genetics / /, Land zones, molecular evidence] [Biochemical variation / / Cytochrome oxidase I, mtDNA sequences] [Climate and weather / / Influence on diversification, Nearctic region, patterns] [Geophysical events / / Geological influences on, Physical factors, Proteins, Quaternary, Variation},
	isbn = {0962-1083},
	url = {<Go to ISI>://ZOOREC:ZOOR14101006872},
	author = {Ayoub, Nadia A. and Riechert, Susan E.}
}
@article {27,
	title = {Speciation history of the North American funnel web spiders, Agelenopsis (Araneae: Agelenidae): phylogenetic inferences at the population-species interface},
	journal = {Molecular Phylogenetics and Evolution},
	volume = {36},
	year = {2005},
	note = {ZOOR14110057613},
	month = {2005},
	pages = {42-57},
	abstract = {Intra- and interspecific relationships of 12 out of 13 described species as well as a potential new species in the spider genus Agelenopsis (Araneae: Agelenidae) were analyzed using sequence data from two mitochondrial genes, cytochrome oxidase I (COI) and 16S ribosomal RNA. Approximately half of the species examined formed well-supported monophyletic groups, whereas the rest of the species were part of well-supported monophyletic species groups. Rather than viewing cases where species were not identified as being monophyletic as poor taxonomy, these cases more likely represent recent speciation and offer insights into the process of speciation. The clade with the lowest levels of interspecific sequence divergence was found in eastern North America, whereas western species displayed much higher levels of interspecific divergence. These patterns appear to extend below the species level as well, with southwestern species exhibiting the highest levels of intraspecific sequence divergence and geographic structuring. The relationship between Agelenopsis and Barronopsis, a genus once considered a sub-genus of Agelenopsis, was also examined. The two genera are reciprocally monophyletic but more generic level sampling is needed to confirm an apparent sister relationship between the two. [copyright] 2005 Elsevier Inc. All rights reserved.},
	keywords = {[Biochemical variation / / ] [North America / / Molecular phylogeny \&, Agelenopsis (Araneae)., Agelenopsis [Nucleic acids / mtDNA \& 16S rRNA sequences / Phylogenetic, Biochemistry, cytochrome, Evolution, Genetics, Land zones, Nearctic region, oxidase \& rRNA sequences] [Speciation / Speciation history / ], Proteins, relationships, sequences / ] [Molecular genetics / mtDNA, cytochrome oxidase \& rRNA, sequences / ] [Phylogeny / Molecular phylogeny / mtDNA, speciation implications] [Enzymes / Cytochrome oxidase I, speciation]., Systematics, Variation},
	isbn = {1055-7903},
	url = {<Go to ISI>://ZOOREC:ZOOR14110057613},
	author = {Ayoub, Nadia A. and Riechert, Susan E. and Small, Randall L.}
}
