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Full-Text Articles in Life Sciences
Phenotypic Plasticity Of Reproduction In Schizachyrium Scoparium (Poaceae) Populations In Relation To Ecological History, Elizabeth M. Obee, James A. Quinn
Phenotypic Plasticity Of Reproduction In Schizachyrium Scoparium (Poaceae) Populations In Relation To Ecological History, Elizabeth M. Obee, James A. Quinn
Aliso: A Journal of Systematic and Floristic Botany
Genetic differentiation in reproduction in the wide-ranging Schizachyrium scoparium (Poaceae) has been demonstrated in uniform gardens. However, the fine-tuning of flowering phenology and biomass allocation in relation to spatial and temporal fluctuations in the local environment is best accomplished by plastic responses to local variability. An earlier central New Jersey study suggested that S. scoparium populations in old fields of 2 to 40 years differed in plasticity. To test this apparent effect of ecological history on the development of different levels of plasticity, genotypes were collected from high- and low-fertility sites in New Jersey (forest biome) and in Oklahoma (grassland …
Adaptation To Deep-Sea Hydrothermal Vents: Some Molecular And Developmental Aspects, Florence Pradillon, Françoise Gaill
Adaptation To Deep-Sea Hydrothermal Vents: Some Molecular And Developmental Aspects, Florence Pradillon, Françoise Gaill
Journal of Marine Science and Technology
Alvinella pompejana is a polychaetous annelid inhabiting the surface of deep sea hydrothermal chimneys along the ridge of the east part of the Pacific ocean. The main characteristic of this emblematic species is its habitat, which is very aggressive considering its temperature. The exceptional thermotolerance of this species (up to 80°C) has been the subject of much controversy. This review is focused on the thermal adaptation of this worm regarding molecular data relative to its extracellular matrix and life history traits.
Adding To The Reproductive Biology Of The Parthenogenetic Oribatid Mite, Archegozetes Longisetosus (Acari, Oribatida, Trhypochthoniidae), Michael Heethoff, Michael Laumann, Paavo Bergmann
Adding To The Reproductive Biology Of The Parthenogenetic Oribatid Mite, Archegozetes Longisetosus (Acari, Oribatida, Trhypochthoniidae), Michael Heethoff, Michael Laumann, Paavo Bergmann
Turkish Journal of Zoology
The oribatid mite, Archegozetes longisetosus, serves as a chelicerate model organism due to its relatively short life cycle and ease of laboratory culturing. It is a parthenogenetic species and all cultures recently used in different laboratories are descendants of a single female collected in 1993. While aspects of its developmental and functional biology have been published, knowledge of its reproductive rate and reproductive system is meager, and data on its life history are contradictory. Herein, we present the gross morphology of the reproductive system as obtained by SEM techniques and X-ray synchrotron microtomography, a new tool for studying mite anatomy. …
Swordfish Reproduction In The Atlantic Ocean: An Overview, Freddy Arocha
Swordfish Reproduction In The Atlantic Ocean: An Overview, Freddy Arocha
Gulf and Caribbean Research
There are 3 unit stocks of Atlantic swordfish, Xiphias gladius, separated into Mediterranean, North and South Atlantic with no precise delimitation between them, and each contains its spawning grounds far from stock boundary areas. This overview characterizes the reproductive information for each stock unit and describes reproductive metrics in detail. Spawning in the western North Atlantic consists of 2 spawning groups: one in open ocean waters and the other in waters close to land masses and fast current systems. Spawning occurs from December to June within the subtropical area (13°N-35°N). Within the Mediterranean, spawning takes place between June and …