caa a22 4500 606227210 CHVBK 20210128101157.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10641-015-0401-9 doi (NATIONALLICENCE)springer-10.1007/s10641-015-0401-9 Life history of Gambusia nobilis (Pecos Gambusia) from Bitter Lake National Wildlife Refuge [Elektronische Daten] [Alyssa Hopkins, Astrid Kodric-Brown] Relatively little is known about variation in allocation to growth and reproduction of endangered and threatened fish species with small geographic distributions or isolated populations. We examined life history and reproductive variation among four ecologically distinct populations of the federally listed Pecos gambusia, Gambusia nobilis, from sinkholes at Bitter Lake National Wildlife Refuge in New Mexico, United States. Despite ecological variation between sinkholes, there were no significant differences in female reproductive traits between populations. Reproductive strategy shifted over the reproductive season from investment in many small embryos to fewer large offspring. Reproductive effort was not correlated with female size or condition (which varies between populations), suggesting that small or poor quality females invest similarly to larger or healthier females. Reproduction was asynchronous between populations and through the reproductive season. Embryo development patterns suggest that females often carry embryos of two or more developmental stages and provision them during gestation (matrotrophy). Understanding the life history strategies of this endangered species is important to the planning and implementation of conservation efforts. Springer Science+Business Media Dordrecht, 2015 Mosquitofish nationallicence Life history nationallicence Reproductive investment nationallicence Sinkhole nationallicence Hopkins Alyssa Department of Biology, University of New Mexico, 167 Castetter Hall, 87131, Albuquerque, NM, USA aut Kodric-Brown Astrid Department of Biology, University of New Mexico, 167 Castetter Hall, 87131, Albuquerque, NM, USA aut Environmental Biology of Fishes Springer Netherlands 98/7(2015-07-01), 1833-1844 0378-1909 98:7<1833 2015 98 10641 https://doi.org/10.1007/s10641-015-0401-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-015-0401-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hopkins Alyssa Department of Biology, University of New Mexico, 167 Castetter Hall, 87131, Albuquerque, NM, USA aut NATIONALLICENCE 700 1- Kodric-Brown Astrid Department of Biology, University of New Mexico, 167 Castetter Hall, 87131, Albuquerque, NM, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/7(2015-07-01), 1833-1844 0378-1909 98:7<1833 2015 98 10641