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Distribution of Gopherus polyphemus and Its Vertebrate Symbionts in Three Burrow Categories
-We classified burrows of a population of gopher tortoises (Gopherus polyphemus) as active, inactive or abandoned according to the physical characteristics of the entrances. We excavated 1019 burrowsExpand
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Aspects of the thermal biology of the six-lined racerunner, Cnemidophorus sexlineatus (Squamata:Teiidae) in West-Central Florida
Abstract (1) I measured the critical thermal maximum (CTM ax), mean selected temperature (MST), and mean activity temperature (MAT) of six-lined racerunners, ( Cnemidophorus sexlineatus ) fromExpand
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Symposium: Insect Behavioral Ecology--'89: Antipredator Mechanisms in Arthropods: A Twenty Year Literature Survey
Sixteen ecological and entomological journals were surveyed from 1969-1989 for articles concerning defensive mechanisms in arthropods. Predators and prey are listed taxonomically by family, andExpand
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Defensive secretion of the carabid beetlePasimachus subsulcatus
The defensive secretion of the carabid beetlePasimachus subsulcatus is a concentrated solution (up to 90%) of carboxylic acids, amounting to about 1% of body mass. It contains three major componentsExpand
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Nutrient absorption efficiencies of the lizard, Cnemidophorus sexlineatus (Sauria: Teiidae)
Abstract 1. 1. Nutrient absorption efficiencies of Cnemidophorus sexlinealus fed domestic crickets (Acheta dornest ica) were calculated by extracting proteins, carbohydrates and lipids from food andExpand
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Comparative ultrastructural analysis of spermatogenesis in Pasimachus subsulcatus and P. strenuus (Coleoptera: Carabidae).
Summary The ultrastructure of the spermatogenic cycle of the ground dwelling carabid beetle, Pasimachus subsulcatus and the spermatids of the sympatric P. strenuus were examined using standardExpand
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Pygidial secretions ofPasimachus subsulcatus (Coleoptera: Carabidae) deter predation byEumeces inexpectatus (Squamata: Scincidae)
The carabid beetlePasimachus subsulcatus is an abundant ground-dwelling insect in west central Florida that exudes a powerful mucous membrane irritant when disturbed. This secretion can be sprayedExpand
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Plasticity in morphology, proximate composition, and energy content of Hygrophila polysperma (Roxb.) Anders
Abstract Submerged Hygrophila polysperma (Roxb.) Anders. were collected in September 1987. Apical shoots were planted in prepared soil and grown under controlled conditions either in waterExpand
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Population Ecology of Two Species of Pasimachus (Coleoptera: Carabidae) in the Sandhill Habitat of Florida
The population ecology of Pasimachus subsulcatus Say and of P. strenuus LeConte was studied with beetles captured by pitfall trapping. We searched for patterns in: (1) activity/density, (2)Expand
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