Competitors and predators alter settlement patterns and reproductive success of an intraguild prey

Competitors and predators alter settlement patterns and reproductive success of an intraguild prey

The spatial distribution of predators is affected by intra- and interspecific interactions within the predator guild. Studying these interactions under fluctuating food availability, while taking habitat characteristics into account, offers a quasi-experimental setup to determine the relative impact...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Ecological Monographs. - Ecological Society of America. - 87(2017), 1, Seite 4-20
1. Verfasser: Morosinotto, Chiara (VerfasserIn)
Weitere Verfasser: Villers, Alexandre, Thomson, Robert L., Varjonen, Rauno, Korpimäki, Erkki
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Ecological Monographs
Schlagworte:Biological sciences Behavioral sciences
LEADER 01000caa a22002652 4500
001 JST137949057
003 DE-627
005 20240625225153.0
007 cr uuu---uuuuu
008 240112s2017 xx |||||o 00| ||eng c
035 |a (DE-627)JST137949057 
035 |a (JST)26358717 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Morosinotto, Chiara  |e verfasserin  |4 aut 
245 1 0 |a Competitors and predators alter settlement patterns and reproductive success of an intraguild prey 
264 1 |c 2017 
336 |a Text  |b txt  |2 rdacontent 
337 |a Computermedien  |b c  |2 rdamedia 
338 |a Online-Ressource  |b cr  |2 rdacarrier 
520 |a The spatial distribution of predators is affected by intra- and interspecific interactions within the predator guild. Studying these interactions under fluctuating food availability, while taking habitat characteristics into account, offers a quasi-experimental setup to determine the relative impact of con- and heterospecifics on reproductive success of predators. We analyzed the settlement decisions and reproductive success of Eurasian Pygmy Owls (Glaucidium passerinum) in the presence of both breeding conspecifics and their competitor and intraguild predator, Tengmalm's Owls (Aegolius funereus), under fluctuating abundance of their primary prey (voles). We used detailed data, collected across 11 years in a large study area (1300 km²), on the spatial and temporal variation of habitat characteristics in all available nesting sites, local densities of both species, and vole abundance. We found that Pygmy Owls strongly avoided breeding close to conspecifics but did not avoid Tengmalm's Owl nests. Nest box occupation of Pygmy Owls was positively correlated to the proportion of old spruce, mature and old pine forests, and farmlands, and occupation probability was higher at high vole abundance and in areas occupied in previous years. Pygmy Owl avoidance of conspecifics decreased when voles were abundant. At high conspecific density, Pygmy Owls showed lower hatching success and delayed hatching date, in agreement with the observed spatial avoidance. Finally, even though breeding Pygmy Owls did not spatially avoid Tengmalm's Owls, the density of heterospecifics correlated with low hatching and fledging success in Pygmy Owls. This suggests short term fitness costs when living close to competitors, even when lethal effects of intraguild interactions are subtle. Our results suggest that joint costs of exploitative and interference competition by Tengmalm's Owls, as well as intraguild predation, were lower than those induced by intraspecific competition only. This result might be due to the similar body size between the species considered, Tengmalm's Owls being only twice as large as Pygmy Owls. Interactions among con- and heterospecifics can therefore modify the spatial settlement and reproductive success of individuals on a landscape scale, also within the predator guild. 
540 |a © 2017 The Ecological Society of America 
650 4 |a Biological sciences  |x Biology  |x Zoology  |x Animals  |x Mammals  |x Rodents  |x Voles 
650 4 |a Behavioral sciences  |x Ethology  |x Animal behavior  |x Habitat selection  |x Animal nesting 
650 4 |a Biological sciences  |x Ecology  |x Ecological processes  |x Ecosystem dynamics  |x Trophic dynamics  |x Trophic relationships  |x Predation  |x Predators 
650 4 |a Behavioral sciences  |x Ethology  |x Animal behavior  |x Habitat selection 
650 4 |a Biological sciences  |x Ecology  |x Ecological processes  |x Ecosystem dynamics  |x Trophic dynamics  |x Trophic relationships  |x Predation 
650 4 |a Biological sciences  |x Biology  |x Evolutionary studies  |x Evolutionary biology  |x Evolutionary genetics  |x Reproductive success 
650 4 |a Biological sciences  |x Biology  |x Zoology  |x Animals  |x Birds  |x Birds of prey  |x Owls 
650 4 |a Biological sciences  |x Biology  |x Zoology  |x Animal physiology  |x Animal reproduction  |x Hatching 
650 4 |a Biological sciences  |x Biology  |x Genetics  |x Molecular genetics  |x Breeding 
650 4 |a Biological sciences  |x Ecology  |x Animal ecology 
655 4 |a research-article 
700 1 |a Villers, Alexandre  |e verfasserin  |4 aut 
700 1 |a Thomson, Robert L.  |e verfasserin  |4 aut 
700 1 |a Varjonen, Rauno  |e verfasserin  |4 aut 
700 1 |a Korpimäki, Erkki  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Ecological Monographs  |d Ecological Society of America  |g 87(2017), 1, Seite 4-20  |w (DE-627)311924379  |w (DE-600)2010129-6  |x 00129615  |7 nnns 
773 1 8 |g volume:87  |g year:2017  |g number:1  |g pages:4-20 
856 4 0 |u https://www.jstor.org/stable/26358717  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_JST 
912 |a GBV_ILN_11 
912 |a GBV_ILN_20 
912 |a GBV_ILN_22 
912 |a GBV_ILN_23 
912 |a GBV_ILN_24 
912 |a GBV_ILN_31 
912 |a GBV_ILN_32 
912 |a GBV_ILN_39 
912 |a GBV_ILN_40 
912 |a GBV_ILN_60 
912 |a GBV_ILN_62 
912 |a GBV_ILN_63 
912 |a GBV_ILN_69 
912 |a GBV_ILN_70 
912 |a GBV_ILN_73 
912 |a GBV_ILN_74 
912 |a GBV_ILN_90 
912 |a GBV_ILN_95 
912 |a GBV_ILN_100 
912 |a GBV_ILN_101 
912 |a GBV_ILN_105 
912 |a GBV_ILN_110 
912 |a GBV_ILN_120 
912 |a GBV_ILN_138 
912 |a GBV_ILN_150 
912 |a GBV_ILN_151 
912 |a GBV_ILN_161 
912 |a GBV_ILN_170 
912 |a GBV_ILN_171 
912 |a GBV_ILN_187 
912 |a GBV_ILN_213 
912 |a GBV_ILN_224 
912 |a GBV_ILN_230 
912 |a GBV_ILN_266 
912 |a GBV_ILN_285 
912 |a GBV_ILN_293 
912 |a GBV_ILN_370 
912 |a GBV_ILN_374 
912 |a GBV_ILN_381 
912 |a GBV_ILN_602 
912 |a GBV_ILN_636 
912 |a GBV_ILN_702 
912 |a GBV_ILN_2001 
912 |a GBV_ILN_2003 
912 |a GBV_ILN_2004 
912 |a GBV_ILN_2005 
912 |a GBV_ILN_2006 
912 |a GBV_ILN_2007 
912 |a GBV_ILN_2008 
912 |a GBV_ILN_2009 
912 |a GBV_ILN_2010 
912 |a GBV_ILN_2011 
912 |a GBV_ILN_2014 
912 |a GBV_ILN_2015 
912 |a GBV_ILN_2018 
912 |a GBV_ILN_2020 
912 |a GBV_ILN_2021 
912 |a GBV_ILN_2025 
912 |a GBV_ILN_2026 
912 |a GBV_ILN_2027 
912 |a GBV_ILN_2034 
912 |a GBV_ILN_2037 
912 |a GBV_ILN_2038 
912 |a GBV_ILN_2044 
912 |a GBV_ILN_2048 
912 |a GBV_ILN_2049 
912 |a GBV_ILN_2050 
912 |a GBV_ILN_2055 
912 |a GBV_ILN_2056 
912 |a GBV_ILN_2057 
912 |a GBV_ILN_2059 
912 |a GBV_ILN_2061 
912 |a GBV_ILN_2064 
912 |a GBV_ILN_2068 
912 |a GBV_ILN_2088 
912 |a GBV_ILN_2093 
912 |a GBV_ILN_2106 
912 |a GBV_ILN_2107 
912 |a GBV_ILN_2108 
912 |a GBV_ILN_2110 
912 |a GBV_ILN_2111 
912 |a GBV_ILN_2113 
912 |a GBV_ILN_2118 
912 |a GBV_ILN_2119 
912 |a GBV_ILN_2122 
912 |a GBV_ILN_2129 
912 |a GBV_ILN_2143 
912 |a GBV_ILN_2144 
912 |a GBV_ILN_2147 
912 |a GBV_ILN_2148 
912 |a GBV_ILN_2152 
912 |a GBV_ILN_2153 
912 |a GBV_ILN_2188 
912 |a GBV_ILN_2190 
912 |a GBV_ILN_2232 
912 |a GBV_ILN_2336 
912 |a GBV_ILN_2360 
912 |a GBV_ILN_2470 
912 |a GBV_ILN_2472 
912 |a GBV_ILN_2507 
912 |a GBV_ILN_2522 
912 |a GBV_ILN_2548 
912 |a GBV_ILN_2932 
912 |a GBV_ILN_2939 
912 |a GBV_ILN_2942 
912 |a GBV_ILN_2946 
912 |a GBV_ILN_2949 
912 |a GBV_ILN_2950 
912 |a GBV_ILN_2951 
912 |a GBV_ILN_4012 
912 |a GBV_ILN_4035 
912 |a GBV_ILN_4037 
912 |a GBV_ILN_4046 
912 |a GBV_ILN_4112 
912 |a GBV_ILN_4125 
912 |a GBV_ILN_4126 
912 |a GBV_ILN_4242 
912 |a GBV_ILN_4246 
912 |a GBV_ILN_4249 
912 |a GBV_ILN_4251 
912 |a GBV_ILN_4305 
912 |a GBV_ILN_4306 
912 |a GBV_ILN_4307 
912 |a GBV_ILN_4313 
912 |a GBV_ILN_4322 
912 |a GBV_ILN_4323 
912 |a GBV_ILN_4324 
912 |a GBV_ILN_4325 
912 |a GBV_ILN_4326 
912 |a GBV_ILN_4333 
912 |a GBV_ILN_4334 
912 |a GBV_ILN_4335 
912 |a GBV_ILN_4336 
912 |a GBV_ILN_4338 
912 |a GBV_ILN_4346 
912 |a GBV_ILN_4393 
912 |a GBV_ILN_4700 
951 |a AR 
952 |d 87  |j 2017  |e 1  |h 4-20