Seasonal ecosystem linkages contribute to the maintenance of migratory polymorphism in a salmonid population

被引:3
|
作者
Tanaka, Tatsuya [1 ]
Ueda, Rui [1 ]
Sato, Takuya [1 ,2 ]
机构
[1] Kobe Univ, Grad Sch Sci, Dept Biol, 1-1 Rokkodai,Nada Ku, Kobe 6578501, Japan
[2] Kyoto Univ, Ctr Ecol Res, Hirano 2-509 3, Otsu, Shiga 5202113, Japan
关键词
resource subsidy; partial migration; status-dependent strategy; salmonid; seasonality; ATLANTIC SALMON; REARING DENSITY; TERRESTRIAL; GROWTH; PERFORMANCE; DOMINANCE; SUBSIDIES; STRATEGIES; PHENOTYPES; EVOLUTION;
D O I
10.1098/rspb.2023.0126
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The influence of resource subsidies on animal growth, survival and reproduction is well understood, but their ultimate effects on life history have been less explored. Some wild species have a partially migratory life history, wherein migration is dictated based upon threshold traits regulated in part by the seasonal availability of resources. We conducted a large-scale field manipulation experiment where we provided a terrestrial invertebrate subsidy to red-spotted masu salmon. Individuals in stream reaches that received a subsidy had, on average, a 53% increase in growth rate relative to those in control reaches. This increased growth resulted in a greater proportion of individuals reaching the threshold body size and smolting in the autumn. Consequently, 19-55% of females in subsidized reaches became migratory, whereas 0-14% became migratory in the control reaches. Our findings highlight seasonal ecosystem linkage as a key ecosystem property for maintaining migratory polymorphism in partially migratory animals.
引用
收藏
页数:9
相关论文
共 50 条
  • [11] Seasonal changes in stream salmonid population densities in two tributaries of a boreal river in northern Japan
    Kentaro Morita
    Shoko H. Morita
    Toru Nagasawa
    Ichthyological Research, 2011, 58 : 134 - 142
  • [12] Seasonal changes in stream salmonid population densities in two tributaries of a boreal river in northern Japan
    Morita, Kentaro
    Morita, Shoko H.
    Nagasawa, Toru
    ICHTHYOLOGICAL RESEARCH, 2011, 58 (02) : 134 - 142
  • [13] Seasonal Exposure to Hemispheric Conservation Challenges Influences Population Trends of Migratory Warblers (Parulidae)
    Seavy, Nathaniel E.
    Smith, Melanie A.
    Deluca, William V.
    Knight, Erika J.
    Witko, Chad J.
    Saunders, Sarah P.
    Taylor, Lotem
    Linero-Triana, Daniela
    Velasquez-Tibata, Jorge
    Wilsey, Chad B.
    Deppe, Jill L.
    GLOBAL CHANGE BIOLOGY, 2025, 31 (03)
  • [14] ESTERASE POLYMORPHISM IN A FIELD POPULATION OF AFRICAN MIGRATORY LOCUST LOCUSTA-MIGRATORIA-MIGRATORIOIDES
    CURRY, PJ
    JOURNAL OF INSECT PHYSIOLOGY, 1977, 23 (03) : 405 - 414
  • [15] Decadal-scale phenology and seasonal climate drivers of migratory baleen whales in a rapidly warming marine ecosystem
    Pendleton, Daniel E.
    Tingley, Morgan W.
    Ganley, Laura C.
    Friedland, Kevin D.
    Mayo, Charles
    Brown, Moira W.
    McKenna, Brigid E.
    Jordaan, Adrian
    Staudinger, Michelle D.
    GLOBAL CHANGE BIOLOGY, 2022, 28 (16) : 4989 - 5005
  • [16] MAINTENANCE OF POLYMORPHISM IN AN ISLAND POPULATION OF CALIFORNIA VOLE, MICROTUS-CALIFORNICUS
    GILL, AE
    EVOLUTION, 1977, 31 (03) : 512 - 525
  • [17] Seasonal changes in mood and behavior contribute to suicidality and worthlessness in a population-based study
    Palmu, Raimo
    Koskinen, Seppo
    Partonen, Timo
    JOURNAL OF PSYCHIATRIC RESEARCH, 2022, 150 : 184 - 188
  • [18] The importance of aquatic vegetation in beaver diets and the seasonal and habitat specificity of aquatic-terrestrial ecosystem linkages in a subarctic environment
    Milligan, Heather E.
    Humphries, Murray M.
    OIKOS, 2010, 119 (12) : 1877 - 1886
  • [19] Can sexual selection and disassortative mating contribute to the maintenance of a shell color polymorphism in an intertidal marine snail?
    Rolan-Alvarez, Emilio
    Saura, Maria
    Diz, Angel P.
    Jose Rivas, Maria
    Alvarez, Marga
    Cortes, Beatriz
    de Coo, Alicia
    Estevez, Daniel
    Iglesias, Laura
    CURRENT ZOOLOGY, 2012, 58 (03) : 463 - 474
  • [20] Fall–winter collection of two salmonid species: seasonal changes in population densities in four tributaries of the Kushiro river system
    Genki Sahashi
    Kentaro Morita
    Ichthyological Research, 2014, 61 : 189 - 192