caa a22 4500 463168127 CHVBK 20180406164805.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10530-006-9084-7 doi (NATIONALLICENCE)springer-10.1007/s10530-006-9084-7 The urban fire ant paradox: native fire ants persist in an urban refuge while invasive fire ants dominate natural habitats [Elektronische Daten] [Robert Plowes, John Dunn, Lawrence Gilbert] In contrast to the widespread extirpation of native fire ants (Solenopsis geminata) across southern US following the invasion by imported red fire ants (S. invicta), some residential areas of Austin form unexpected refuges for native fire ants. Ironically, these urban environments provide refuges for the native fire ants while adjacent natural habitats have been overrun by invasive fire ants. Resistance to invasive fire ants in these urban areas occurs mainly in older residential properties constructed prior to the S. invicta invasion, while more recent construction has allowed establishment by S. invicta. The invasive ability of S. invicta is often attributed to escape from parasitoids and efficient dispersal of polygyne multiple queen colonies. Here we also show the importance of landscape parameters in the invasion process, where low levels of disturbance and continuous plant cover in older residential areas form possible barriers to colonization. Dense leaf cover (high NDVI) was also found to be associated with native ant refuges. Long term residential land ownership may have resulted in lower recent disturbance levels and increased plant cover that support refuges of native fire ants. Springer Science+Business Media, Inc., 2006 Solenopsis invicta nationallicence Solenopsis geminata nationallicence Fire ant nationallicence Invasive species nationallicence Invasibility nationallicence NDVI nationallicence Disturbance nationallicence Polygyne nationallicence Urban landscape nationallicence Plowes Robert University of Texas, 1 University Station, 78712, Austin, TX, USA aut Dunn John University of Texas, 1 University Station, 78712, Austin, TX, USA aut Gilbert Lawrence University of Texas, 1 University Station, 78712, Austin, TX, USA aut Biological Invasions Springer Netherlands 9/7(2007-10-01), 825-836 1387-3547 9:7<825 2007 9 10530 https://doi.org/10.1007/s10530-006-9084-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10530-006-9084-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Plowes Robert University of Texas, 1 University Station, 78712, Austin, TX, USA aut NATIONALLICENCE 700 1- Dunn John University of Texas, 1 University Station, 78712, Austin, TX, USA aut NATIONALLICENCE 700 1- Gilbert Lawrence University of Texas, 1 University Station, 78712, Austin, TX, USA aut NATIONALLICENCE 773 0- Biological Invasions Springer Netherlands 9/7(2007-10-01), 825-836 1387-3547 9:7<825 2007 9 10530 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer