Exploitation of resources modulates stopover behaviour of passerine migrants
Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploit...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ottich, Indra [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2003 |
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| Schlagwörter: |
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| Anmerkung: |
© Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 |
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| Übergeordnetes Werk: |
Enthalten in: Journal für Ornithologie - Oxford : Blackwell, 1853, 144(2003), 3 vom: 01. Juli, Seite 307-316 |
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| Übergeordnetes Werk: |
volume:144 ; year:2003 ; number:3 ; day:01 ; month:07 ; pages:307-316 |
| Links: |
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| DOI / URN: |
10.1007/BF02465630 |
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| Katalog-ID: |
SPR048281662 |
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| 100 | 1 | |a Ottich, Indra |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Exploitation of resources modulates stopover behaviour of passerine migrants |
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| 520 | |a Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. | ||
| 650 | 4 | |a stopover ecology |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a passerine birds |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a frugivory |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Black Elder |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Dierschke, Volker |4 aut | |
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10.1007/BF02465630 doi (DE-627)SPR048281662 (SPR)BF02465630-e DE-627 ger DE-627 rakwb eng Ottich, Indra verfasserin aut Exploitation of resources modulates stopover behaviour of passerine migrants 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 Dierschke, Volker aut Enthalten in Journal für Ornithologie Oxford : Blackwell, 1853 144(2003), 3 vom: 01. Juli, Seite 307-316 (DE-627)323607284 (DE-600)2026338-7 1439-0361 nnns volume:144 year:2003 number:3 day:01 month:07 pages:307-316 https://dx.doi.org/10.1007/BF02465630 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 144 2003 3 01 07 307-316 |
| spelling |
10.1007/BF02465630 doi (DE-627)SPR048281662 (SPR)BF02465630-e DE-627 ger DE-627 rakwb eng Ottich, Indra verfasserin aut Exploitation of resources modulates stopover behaviour of passerine migrants 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 Dierschke, Volker aut Enthalten in Journal für Ornithologie Oxford : Blackwell, 1853 144(2003), 3 vom: 01. Juli, Seite 307-316 (DE-627)323607284 (DE-600)2026338-7 1439-0361 nnns volume:144 year:2003 number:3 day:01 month:07 pages:307-316 https://dx.doi.org/10.1007/BF02465630 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 144 2003 3 01 07 307-316 |
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10.1007/BF02465630 doi (DE-627)SPR048281662 (SPR)BF02465630-e DE-627 ger DE-627 rakwb eng Ottich, Indra verfasserin aut Exploitation of resources modulates stopover behaviour of passerine migrants 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 Dierschke, Volker aut Enthalten in Journal für Ornithologie Oxford : Blackwell, 1853 144(2003), 3 vom: 01. Juli, Seite 307-316 (DE-627)323607284 (DE-600)2026338-7 1439-0361 nnns volume:144 year:2003 number:3 day:01 month:07 pages:307-316 https://dx.doi.org/10.1007/BF02465630 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 144 2003 3 01 07 307-316 |
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10.1007/BF02465630 doi (DE-627)SPR048281662 (SPR)BF02465630-e DE-627 ger DE-627 rakwb eng Ottich, Indra verfasserin aut Exploitation of resources modulates stopover behaviour of passerine migrants 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 Dierschke, Volker aut Enthalten in Journal für Ornithologie Oxford : Blackwell, 1853 144(2003), 3 vom: 01. Juli, Seite 307-316 (DE-627)323607284 (DE-600)2026338-7 1439-0361 nnns volume:144 year:2003 number:3 day:01 month:07 pages:307-316 https://dx.doi.org/10.1007/BF02465630 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 144 2003 3 01 07 307-316 |
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10.1007/BF02465630 doi (DE-627)SPR048281662 (SPR)BF02465630-e DE-627 ger DE-627 rakwb eng Ottich, Indra verfasserin aut Exploitation of resources modulates stopover behaviour of passerine migrants 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 Dierschke, Volker aut Enthalten in Journal für Ornithologie Oxford : Blackwell, 1853 144(2003), 3 vom: 01. Juli, Seite 307-316 (DE-627)323607284 (DE-600)2026338-7 1439-0361 nnns volume:144 year:2003 number:3 day:01 month:07 pages:307-316 https://dx.doi.org/10.1007/BF02465630 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 144 2003 3 01 07 307-316 |
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Enthalten in Journal für Ornithologie 144(2003), 3 vom: 01. Juli, Seite 307-316 volume:144 year:2003 number:3 day:01 month:07 pages:307-316 |
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Enthalten in Journal für Ornithologie 144(2003), 3 vom: 01. Juli, Seite 307-316 volume:144 year:2003 number:3 day:01 month:07 pages:307-316 |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR048281662</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230509113109.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">221005s2003 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/BF02465630</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR048281662</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)BF02465630-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Ottich, Indra</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Exploitation of resources modulates stopover behaviour of passerine migrants</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2003</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. 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|
| author |
Ottich, Indra |
| spellingShingle |
Ottich, Indra misc stopover ecology misc passerine birds misc frugivory misc Black Elder Exploitation of resources modulates stopover behaviour of passerine migrants |
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1439-0361 |
| topic_title |
Exploitation of resources modulates stopover behaviour of passerine migrants stopover ecology (dpeaa)DE-He213 passerine birds (dpeaa)DE-He213 frugivory (dpeaa)DE-He213 Black Elder (dpeaa)DE-He213 |
| topic |
misc stopover ecology misc passerine birds misc frugivory misc Black Elder |
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misc stopover ecology misc passerine birds misc frugivory misc Black Elder |
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misc stopover ecology misc passerine birds misc frugivory misc Black Elder |
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Elektronische Aufsätze Aufsätze Elektronische Ressource |
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Exploitation of resources modulates stopover behaviour of passerine migrants |
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Exploitation of resources modulates stopover behaviour of passerine migrants |
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Ottich, Indra |
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Journal für Ornithologie |
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Ottich, Indra Dierschke, Volker |
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Elektronische Aufsätze |
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Ottich, Indra |
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10.1007/BF02465630 |
| title_sort |
exploitation of resources modulates stopover behaviour of passerine migrants |
| title_auth |
Exploitation of resources modulates stopover behaviour of passerine migrants |
| abstract |
Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 |
| abstractGer |
Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 |
| abstract_unstemmed |
Summary The seasonal variation in the supply of ripe Elderberries (Sambucus nigra) on the offshore island of Helgoland (North Sea) was examined from the point of view of the effect of food supply and exploitation on the stopover behaviour of migrating passerines. Elderberries were completely exploited by birds by mid October, three weeks earlier than the last berries disappeared from exclosures. In five out of seven frugivorous passerine species the percentage of trapped birds settling (i. e. recaptured on days subsequent to initial capture) was significantly higher during the period of high availability of ripe Elderberries (early September to early October) than it was earlier (berries still unripe) and later (berries exhausted). No such pattern was observed in fuel deposition rates because rates of body mass change in recaptures differed between periods in only one out of five species. Therefore, in conjunction with the shortage of alternative food, berry supply had an impact on the stopover decision, but did not affect the refuelling itself. The energy demand of migrants as calculated from the number of birds present could not be covered by Elderberries from mid October onwards. Hence, exploitation by earlier migrants reduced the carrying capacity of the stopover site for later migrants, especially when high bird densities were involved. Continent-wide patterns of fuel deposition may have evolved in order to avoid such shortages of food for refuelling just before the crossing of ecological barriers. Passerine migrants would benefit from dispersed resources which allow the avoidance of crowding and exhaustion of supply. © Deutsche Ornithologen-Gesellschaft/Blackwell Verlag 2003 |
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3 |
| title_short |
Exploitation of resources modulates stopover behaviour of passerine migrants |
| url |
https://dx.doi.org/10.1007/BF02465630 |
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true |
| author2 |
Dierschke, Volker |
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Dierschke, Volker |
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| doi_str |
10.1007/BF02465630 |
| up_date |
2024-07-03T18:12:24.743Z |
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| score |
7.4003716 |