Halupka, LucynaLucynaHalupkaArlt, DeboraDeboraArltTolvanen, JereJereTolvanenMillon, AlexandreAlexandreMillonBize, PierrePierreBizeAdamík, PeterPeterAdamíkAlbert, PascalPascalAlbertArendt, Wayne JWayne JArendtArtemyev, Alexander VAlexander VArtemyevBaglione, VittorioVittorioBaglioneBańbura, JerzyJerzyBańburaBańbura, MirosławaMirosławaBańburaBarba, EmilioEmilioBarbaBarrett, Robert TRobert TBarrettBecker, Peter HPeter HBeckerBelskii, EugenEugenBelskiiBolton, MarkMarkBoltonBowers, E KeithE KeithBowersBried, JoëlJoëlBriedBrouwer, LyanneLyanneBrouwerBukacińska, MonikaMonikaBukacińskaBukaciński, DariuszDariuszBukacińskiBulluck, LesleyLesleyBulluckCarstens, Kate FKate FCarstensCatry, InêsInêsCatryCharter, MottiMottiCharterChernomorets, AnnaAnnaChernomoretsCovas, RitaRitaCovasCzuchra, MonikaMonikaCzuchraDearborn, Donald CDonald CDearbornde Lope, FlorentinoFlorentinode LopeDi Giacomo, Adrián SAdrián SDi GiacomoDombrovski, Valery CValery CDombrovskiDrummond, HughHughDrummondDunn, Michael JMichael JDunnEeva, TapioTapioEevaEmmerson, Louise MLouise MEmmersonEspmark, YngveYngveEspmarkFargallo, Juan AJuan AFargalloGashkov, Sergey ISergey IGashkovGolubova, Elena YuElena YuGolubovaGriesser, MichaelMichaelGriesserHarris, Michael PMichael PHarrisHoover, Jeffrey PJeffrey PHooverJagiełło, ZuzannaZuzannaJagiełłoKarell, PatrikPatrikKarellKloskowski, JanuszJanuszKloskowskiKoenig, Walter DWalter DKoenigKolunen, HeikkiHeikkiKolunenKorczak-Abshire, MałgorzataMałgorzataKorczak-AbshireKorpimäki, ErkkiErkkiKorpimäkiKrams, IndrikisIndrikisKramsKrist, MilošMilošKristKrüger, Sonja CSonja CKrügerKuranov, Boris DBoris DKuranovLambin, XavierXavierLambinLombardo, Michael PMichael PLombardoLyakhov, AndreyAndreyLyakhovMarzal, AlfonsoAlfonsoMarzalMøller, Anders PAnders PMøllerNeves, Verónica CVerónica CNevesNielsen, Jan TøttrupJan TøttrupNielsenNumerov, AlexanderAlexanderNumerovOrłowska, BeataBeataOrłowskaOro, DanielDanielOroÖst, MarkusMarkusÖstPhillips, Richard ARichard APhillipsPietiäinen, HannuHannuPietiäinenPolo, VicenteVicentePoloPorkert, JiříJiříPorkertPotti, JaimeJaimePottiPöysä, HannuHannuPöysäPrintemps, ThierryThierryPrintempsProp, JoukeJoukePropQuillfeldt, PetraPetraQuillfeldtRamos, Jaime AJaime ARamosRavussin, Pierre-AlainPierre-AlainRavussinRosenfield, Robert NRobert NRosenfieldRoulin, AlexandreAlexandreRoulinRubenstein, Dustin RDustin RRubensteinSamusenko, Irina EIrina ESamusenkoSaunders, Denis ADenis ASaundersSchaub, MichaelMichaelSchaubSenar, Juan CJuan CSenarSergio, FabrizioFabrizioSergioSolonen, TapioTapioSolonenSolovyeva, Diana VDiana VSolovyevaStępniewski, JanuszJanuszStępniewskiThompson, Paul MPaul MThompsonTobolka, MarcinMarcinTobolkaTörök, JánosJánosTörökvan de Pol, MartijnMartijnvan de PolVernooij, LouisLouisVernooijVisser, Marcel EMarcel EVisserWestneat, David FDavid FWestneatWheelwright, Nathaniel TNathaniel TWheelwrightWiącek, JarosławJarosławWiącekWiebe, Karen LKaren LWiebeWood, Andrew GAndrew GWoodWuczyński, AndrzejAndrzejWuczyńskiWysocki, DariuszDariuszWysockiZárybnická, MarkétaMarkétaZárybnickáMargalida, AntoniAntoniMargalidaHalupka, KonradKonradHalupka2024-10-252024-10-252023-05-09https://boris-portal.unibe.ch/handle/20.500.12422/166823Climate change affects timing of reproduction in many bird species, but few studies have investigated its influence on annual reproductive output. Here, we assess changes in the annual production of young by female breeders in 201 populations of 104 bird species (N = 745,962 clutches) covering all continents between 1970 and 2019. Overall, average offspring production has declined in recent decades, but considerable differences were found among species and populations. A total of 56.7% of populations showed a declining trend in offspring production (significant in 17.4%), whereas 43.3% exhibited an increase (significant in 10.4%). The results show that climatic changes affect offspring production through compounded effects on ecological and life history traits of species. Migratory and larger-bodied species experienced reduced offspring production with increasing temperatures during the chick-rearing period, whereas smaller-bodied, sedentary species tended to produce more offspring. Likewise, multi-brooded species showed increased breeding success with increasing temperatures, whereas rising temperatures were unrelated to reproductive success in single-brooded species. Our study suggests that rapid declines in size of bird populations reported by many studies from different parts of the world are driven only to a small degree by changes in the production of young.enbirds climate change meta-analysis offspring production300 - Social sciences, sociology & anthropology::330 - Economicsarticle10.48350/1822063712670110.1073/pnas.2208389120