More information:

Hahn, T.P., Cornelius, J.M., Sewall, K.B., Kelsey, T.R., Hau, M. and Perfito, N. 2008. Environmental regulation of annual schedules in opportunistically-breeding songbirds: Adaptive specializations or variations on a theme of white-crowned sparrow? General and Comparative Endocrinology, 157(3): 217–226


Description:

Environmental regulation of annual schedules in opportunistically-breeding songbirds: Adaptive specializations or variations on a theme of white-crowned sparrow?

Summary / Notes:

How birds use environmental cues to time breeding, migration and molt has been the subject of intensive study for nearly 90 years. Most work has focused on seasonal breeders; opportunistic breeders have been presumed to differ fundamentally from seasonal taxa in ways that facilitate coping with unpredictable environments. Understanding patterns and mechanisms of opportunists’ responses to environmental cues can reveal the extent to which different environments require specialized adaptations of cue response systems. In this review we will present our perspective on how patterns and mechanisms of environmental cue response of three groups of opportunists—zebra finches, crossbills and Darwin’s finches—compare with seasonal breeders. Long-standing predictions regarding tonic activity of the hypothalamic gonadotropin-releasing hormone system have been confirmed in at least some opportunists. However, opportunists resemble seasonal breeders in some surprising ways, illustrating basic similarity among taxa facing very different timing challenges. For instance, many opportunists completely regress the gonads outside breeding times, rely on initial predictive cues (both photic and non-photic) to regulate timing and rate of reproductive development, and in some cases even appear to display internal changes in responsiveness to environmental cues (i.e., cycles of reproductive refractoriness and sensitivity). Although advantages of unrestricted temporal flexibility are intuitively clear for animals coping with unpredictable habitats, the available data on these opportunists indicate that in all but the most extremely capricious situations the advantages of flexibility may be at least partly outweighed by contrasting advantages of following a reliable temporal schedule. Keywords: Photoperiod, Opportunism, Crossbill, Zebra finch, Darwin's finch, Taeniopygia, Loxia, Geospiza, Photorefractoriness, Annual cycles, Non-photic cues, GnRH.

Year: 2008

Type: Journal Article

URL: http://www.sciencedirect.com/science/article/pii/S0016648008001974


Top 50 related results:

You may also be interested in the following items which are on a similar or related topic, listed in order of similarity.

Results per page:

Results: 1 to 50 of 50

To FILTER: Use the pale green row to filter the results on this page. Type in text or select from the year list.

Rows matching filter(s): All
What is this row? 
Data titleYearOriginFile typeDownloadkml/kmz
Lamb, T. and Bond, J.E. 2013. A multilocus perspective on phylogenetic relationships in the Namib darkling beetle genus Onymacris (Tenebrionidae). Molecular Phylogenetics and Evolution, 66(3): 757–765
  » More info & related results
2013 Journal Article
Giess, W. 1968. Kurt Dinter. Dinteria, 1: 4-7
  » More info & related results
1968Namibia Scientific SocietyJournal Article558 kb pdf
Preview
Melville-Smith, R. 1987. The reproductive biology of Geryon maritae (Decapoda, Brachyura) off South-West Africa/Namibia: Melville-Smith, Roy, 1987. Crustaceana, 53(3):259–275. Sea Fish. Res. Inst., Private Bag X2, Roggebaai 8012, South Africa. Deep Sea Research Part B. Oceanographic Literature Review, 35(6): 568
  » More info & related results
1987 Journal Article
Cooper-Driver, G.A., Wagner, C. and Kolberg, H. 2000. Patterns of Aspergillus niger var. phoenicis (Corda) Al-Musallam infection in Namibian populations of Welwitschia mirabilis Hook.f. Journal of Arid Environments, 46(2): 181–198
  » More info & related results
2000 Journal Article
Stone, A.E.C. and Edmunds, W.M. 2014. Naturally-high nitrate in unsaturated zone sand dunes above the Stampriet Basin, Namibia. Journal of Arid Environments, 105: 41–51
  » More info & related results
2014 Journal Article
Buch, M.W. und Rose, D. 1996. Mineralogy and geochemistry of the sediments of the Etosha Pan Region in northern Namibia: a reconstruction of the depositional environment. Journal of African Earth Sciences, 22(3): 355–378
  » More info & related results
2006 Journal Article
Kröner, A. and Clauer, N. 1979. Isotopic dating of low-grade metamorphic shales in northern Namibia (South West Africa) and implications for the orogenic evolution of the Pan-African Damara-Belt. Precambrian Research, 10(1–2): 59–72
  » More info & related results
1979 Journal Article
Wagener, G.F. 1989. Systematic variation in the tin content of pegmatites in western central Namibia. Journal of Geochemical Exploration, 34(1): 1–19
  » More info & related results
1989 Journal Article
De Kock, G.S. 1991. The mafic audawib suite in the central damara orogen of Namibia: geochemical evidence for volcanic arc volcanism. Journal of African Earth Sciences (and the Middle East), 12(4): 593–599
  » More info & related results
1991 Journal Article
Segalen, L. and Lee-Thorp, J.A. 2009. Palaeoecology of late Early Miocene fauna in the Namib based on 13C/12C and 18O/16O ratios of tooth enamel and ratite eggshell carbonate. Palaeogeography, Palaeoclimatology, Palaeoecology, 277(3–4): 191–198
  » More info & related results
2009 Journal Article
Speer, K.G., Siedler, G. and Talley, L. 1995. The Namib Col Current. Deep Sea Research Part I: Oceanographic Research Papers, 42(11–12): 1933–1950
  » More info & related results
1995 Journal Article
Filippucci, M.G., Hickman, G.V., Capanna, E. and Nevo, E. 1991. Genetic diversity and differentiation of the endemic subterranean golden moles of South Africa. Biochemical Systematics and Ecology, 19(6): 461–466
  » More info & related results
1991 Journal Article
Melcher, F., Oberthür, T. and Rammlmair, D. 2006. Geochemical and mineralogical distribution of germanium in the Khusib Springs Cu–Zn–Pb–Ag sulfide deposit, Otavi Mountain Land, Namibia. Ore Geology Reviews, 28(1): 32–56
  » More info & related results
2006 Journal Article
Uhmann, G. 1995. Die Anthicidae der ersten entomologischen Afrika-Expedition des Museums für Naturkunde Berlin 1992 nach Namibia und weitere Nachweise aus Namibia und Südafrika. 45. Beitrag zur Kenntnis der Anthicidae (Coleoptera). Mitteilungen aus dem Museum für Naturkunde in Berlin. Zoologisches Museum und Institut für Spezielle Zoologie (Berlin), 71(2): 341–352
  » More info & related results
2005 Journal Article
Uhlig, M. 1995. Adinopsis klimaszewskii sp. n. from the Popa Falls in Northern Namibia. (Coleoptera, Staphylinidae, Aleocharinae). Mitteilungen aus dem Museum für Naturkunde in Berlin. Zoologisches Museum und Institut für Spezielle Zoologie (Berlin), 71(2): 293-295
  » More info & related results
1995 Journal Article
Duncan, G. 2013. 759. Strumaria phonolithica. Curtis's Botanical Magazine, 30(2): 87–94
  » More info & related results
2013 Journal Article
Okland, F., Hay, C.J., Naesje, T.F., Nickandor, N. and Thorstad, E.B. 2003. Learning from unsuccessful radio tagging of common carp in a Namibian reservoir. Journal of Fish Biology, 62(3): 735–739
  » More info & related results
2003 Journal Article
Dupont, L.M. 2006. Late Pliocene vegetation and climate in Namibia (southern Africa) derived from palynology of ODP Site 1082. Geochemistry, Geophysics, Geosystems, 7(5)
  » More info & related results
2006 Journal Article
IGWG. 2012. Extant giraffe taxonomy: statement from the IUCN SSG ASG International Giraffe Working Group. Giraffa, 6(1): 2
  » More info & related results
2012 Journal Article72 kb pdf
Preview
Bidinger, F.R. 1992. Utilisation of plant genetic resources in crop breeding programmes. Dinteria, 23: 70-81
  » More info & related results
1992Namibia Scientific SocietyJournal Article1.71 mb pdf
Preview
Kirchner, C.H. and Holtzhausen, J.A. 2001. Seasonal movements of silver kob, Argyrosomus inodorus, (Griffiths and Heemstra) in Namibian waters. Fisheries Management and Ecology, 8(3): 239–251
  » More info & related results
2001 Journal Article
Griffin, M. and Kolberg, H. 2004. Preserving biological specimens: a guide for Namibians. Biosystematics Working Group, National Biodiversity Programme: Windhoek. 112 pp
  » More info & related results
2004 Book, Book Section, Booklet
Klaassen, E.S., Kwembeya E.G. and Maass, E. 2007. A taxonomic revision of the genus Pentatrichia (Asteraceae). Poster presented at the South African Association of Botanists Conference
  » More info & related results
2007 Poster
Bockmühl, F. 2009. A hydrogeological review of the Orange-Fish River Basin. Report produced for the Ephemeral River Basins in Southern Africa (ERB) Project, Desert Research Foundation of Namibia (DRFN): Windhoek
  » More info & related results
2009 Report1.37 mb pdf
Preview
Graz, P. 1992. Forestry germplasm in Namibia. Dinteria, 23: 116-117
  » More info & related results
1992Namibia Scientific SocietyJournal Article266 kb pdf
Preview
Eckardt, F.D. and Kuring, N. 2005. SeaWiFS identifies dust sources in the Namib Desert. International Journal of Remote Sensing, 26(19): 4159-4167
  » More info & related results
2005 Journal Article
Bologna, M.A. 2003. Australytta, a new blister beetle genus from Southern Africa (Coleoptera: Meloidae). Annales de la Société entomologique de France (N.S.): International Journal of Entomology, 39(2): 139-152
  » More info & related results
2003 Journal Article755 kb pdf
Preview
Harrison, J. du G., Scholtz, C.H. and Chown, S.L. 2003. A revision of the endemic south-western African dung beetle subgenus Scarabaeus (Pachysoma) MacLeay, including notes on other flightless Scarabaeini (Scarabaeidae: Scarabaeinae). Journal of Natural History, 37(3): 305-355
  » More info & related results
2003 Journal Article
Kirk-Spriggs, A.H., Barraclough, D.A. and Meier, R. 2002. The immature stages of Katacamilla cavernicola Papp, the first described for the Camillidae (Diptera: Schizophora), with comparison to other known Ephydroidea larvae, and notes on biology. Journal of Natural History, 36(9): 1105-1128
  » More info & related results
2002 Journal Article
Bowie, R.C.K., Bloomer, P., Clancey, P.A. and Crowe, T.M. 2003. The Karoo Thrush (Turdus smithi Bonaparte 1850), a southern African endemic. Ostrich: Journal of African Ornithology, 74(1-2): 1-7
  » More info & related results
2003 Journal Article
Kuijten, P.J. 1983. Revision of the genus Hybosorus MacLeay (Coleoptera: Scarabaeidae, Hybosorinae). Division of Systematics and Evolutionary Biology, University of Leiden
  » More info & related results
1983 Report4.31 mb pdf
Preview
Ebedes, H. 1975. The immobilization of adult male and female elephant Loxodonta africana, Blumenbach with etorphine and observation on the action of diprenorphine. Madoqua, 9(2): 19-24
  » More info & related results
1975 Journal Article511 kb pdf
Preview
Lawson, K., Apps, P. and Panagis, K. 1988. A new method for counting animals in small populations of recognizable individuals. Madoqua, 15(4): 343-346
  » More info & related results
1988 Journal Article1.01 mb pdf
Preview
Aranibar, J.N., Macko, S.A., Anderson, I.C., Epstein, H.E., Feral, C.J., Hipondoka, M., Potgieter, A. and Shugart, H.H. 2001. Does Nutrient Dynamics Determine C3-C4 Plant Abundance in Southern African Ecosystems? American Geophysical Union, Fall Meeting 2001, abstract #A51A-0023
  » More info & related results
2001 Journal Article
Gschwendtner, L. 1935. Wissenschaftliche Ergebenisse der Vernay-Lang Kalahari-Expedition, März bis September, 1930. Haliplidae et Dytiscidae. Annals of the Transvaal Museum, 17(1): 15-25
  » More info & related results
1935 Journal Article667 kb pdf
Preview
Krakstad, J-O., Amaro, A.P. da S. and Shigwedha, V. 2012. A transboundary study of the pelagic fish stocks of southern Angola and northern Namibia. BCC Cruise Report No 2/2012 22 September – 06 October 2012
  » More info & related results
2012 Report7.1 mb pdf
Preview
Makita, C., Chimuka, L., Steenkamp, P., Cukrowska, E. and Madala, E. 2016. Comparative analyses of flavonoid content in Moringa oleifera and Moringa ovalifolia with the aid of UHPLC-qTOF-MS fingerprinting. South African Journal of Botany, 105: 116-122
  » More info & related results
2016 Journal Article
Platnick, N.I. and Griffin, E. 1988. On the first African and Australian spiders of the genus Cyrioctea (Araneae: Zodariidae). Journal of the New York Entomological Society, 96(3): 359-362
  » More info & related results
1988 Journal Article
Killian, W. 2016. Variability in the movements of elephants across a steep environmental gradient in Namibia. Etosha Ecological Institute. Symposium on animal movements & satellite tracking in Namibia, November 2016
  » More info & related results
2016Symposium on animal movements & satellite tracking in Namibia, November 2016Presentation7 mb pptx
Scott, T.P., Fischer, M., Khaiseb, S., Freuling, C., Höper, D. Hoffmann, B., Markotter, W., Müller, T. and Nel, L.H. 2013. Complete Genome and Molecular Epidemiological Data Infer the Maintenance of Rabies among Kudu (Tragelaphus strepsiceros) in Namibia. PLoS ONE, 8(3): e58739
  » More info & related results
2013 Journal Article613 kb pdf
Preview
Hammond, W. and Griffiths, C. 2005. Biogeographical patterns in the fauna associated with southern African mussel beds. African Zoology, 41(1): 123-130
  » More info & related results
2005 Journal Article
Riddin, M.A., Bills, I.R. and Villet, M.H. 2016. Phylogeographic, morphometric and taxonomic re-evaluation of the river sardine, Mesobola brevianalis (Boulenger, 1908) (Teleostei, Cyprinidae, Chedrini). ZooKeys, 641: 121–150
  » More info & related results
2016 Journal Article3.56 mb pdf
Preview
Londt, J.G.H. 2004. A review of the afrotropical genus Gonioscelis Schiner, 1866 (Diptera: Asilidae), with descriptions of new species. African Invertebrates, 45(1): 21-124
  » More info & related results
2004 Journal Article3.6 mb pdf
Preview
Holm, E. 1986. New species and records of African Julodinae and Acmaeoderinae (Coleoptera: Buprestidae). Journal of the Entomological Society of Southern Africa, 49(2): 307-316
  » More info & related results
1986 Journal Article794 kb pdf
Preview
Swart, P.S. 1970. The vascular anatomy of the lower abdomen, pelvis and upper hindleg in Procavia capensis. Madoqua, 2(1): 3-18
  » More info & related results
1970 Journal Article3.51 mb pdf
Preview
Sforzi, A. 2005. Geographic distribution of southern African Brentidae (Insecta: Coleoptera) including the description of a new Cerobates (s.s.) species. Annals of the Transvaal Museum, 42(1): 53-70
  » More info & related results
2005 Journal Article337 kb pdf
Preview
Andre, H.M., Noti, M.I. and Jacobson, K. 1998. The soil microarthropods of the Namib desert: A patchy mosaic. Journal of African Zoology, 111(6): 499-517
  » More info & related results
1998 Journal Article8.26 mb pdf
Preview
Lamb, T., Marais, E. and Bond, J.E. 2017. A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement. ZooKeys, 687: 63-72
  » More info & related results
2017 Journal Article1.25 mb pdf
Preview
Compton, J.S., Herbert, C.T., Hoffman, M.T., Schneider, R.R. and Stuut, J-B. 2010. A tenfold increase in the Orange River mean Holocene mud flux: implications for soil erosion in South Africa. The Holocene, 20(1): 115–122
  » More info & related results
2009 Journal Article725 kb pdf
Preview
Manning, J.C. and Goldblatt, P. 2011. Review of the genus Xenoscapa (Iridaceae: Crocoideae), including X. grandiflora, a new species from southern Namibia. Bothalia, 41(2): 283–288
  » More info & related results
2011 Journal Article342 kb pdf
Preview

» Links to useful free software for working with shapefiles, kml and kmz files, pdf files and more.