caa a22 4500 469098716 CHVBK 20180323133039.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF01875440 doi (NATIONALLICENCE)springer-10.1007/BF01875440 Influence of Myriophyllum aquaticum cover on Anopheles mosquito abundance, oviposition, and larval microhabitat [Elektronische Daten] [B. Orr, V. Resh] Summary: The surface cover produced by aquatic macrophytes is the primary habitat for immature stages (eggs, larvae, and pupae) ofAnopheles mosquitoes. We hypothesized that both the abundance of immatureAnopheles and the recruitment ofAnopheles (from oviposition or larval movement) is positively related to the amount of surface cover present. Field sampling documented a positive correlation betweenAnopheles egg and larval abundance and the amount of vegetative cover present (measured as the number of emergent stems m-2) in monospecific beds ofMyriophyllum aquaticum in a California, USA, wetland. Experiments conducted to determine the influence ofMyriophyllum stem density on selection of oviposition sites by adultAnopheles females clearly indicate that oviposition rate (eggs m-2 d-1) increases as stem density increases from 0 to 1000 stems m-2 but decreases as stem density approaches 2000 stems m-2. In selecting microhabitats,Anopheles larvae preferred patches with high stem densities over patches with few or no plant stems; this preference correlates with differences in habitat quality (e.g., increased refuge from predation and enriched food sources). The optimal habitat for anopheline mosquitoes apparently occurs above a threshold plant density of approximately 500Myriophyllum stems m-2. Habitat heterogeneity produced by variability in the distribution and structure of aquatic vegetation strongly influences the local distribution and abundance of anopheline mosquitoes. Springer-Verlag, 1992 Macrophytes nationallicence Mosquitoes nationallicence Wetland nationallicence Habitat selection nationallicence Oviposition nationallicence Orr B. Department of Entomological Sciences, University of California, 94720, Berkeley, CA, USA aut Resh V. Department of Entomological Sciences, University of California, 94720, Berkeley, CA, USA aut Oecologia Springer-Verlag 90/4(1992-07-01), 474-482 0029-8549 90:4<474 1992 90 442 https://doi.org/10.1007/BF01875440 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01875440 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Orr B. Department of Entomological Sciences, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Resh V. Department of Entomological Sciences, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 90/4(1992-07-01), 474-482 0029-8549 90:4<474 1992 90 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer