The influence of spatio-temporal resource fluctuations on insular rat population dynamics

被引:24
|
作者
Russell, James C. [1 ]
Ruffino, Lise [2 ,3 ]
机构
[1] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
[2] Paul Cezanne Univ, IMEP CNRS, UMR 6116, F-13545 Aix En Provence 04, France
[3] Paul Cezanne Univ, IRD 193, F-13545 Aix En Provence 04, France
基金
美国国家科学基金会;
关键词
bottom-up; capture-recapture; Mediterranean; rainfall; Rattus rattus; survival; DEPENDENT HABITAT SELECTION; MONTANE FOREST GRADIENT; CAPTURE-RECAPTURE DATA; MEDITERRANEAN ISLANDS; BAYESIAN-ESTIMATION; GALAPAGOS-ISLANDS; NEW-ZEALAND; BLACK RATS; SEABIRDS; ECOLOGY;
D O I
10.1098/rspb.2011.1121
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Local spatio-temporal resource variations can strongly influence the population dynamics of small mammals. This is particularly true on islands which are bottom-up driven systems, lacking higher order predators and with high variability in resource subsidies. The influence of resource fluctuations on animal survival may be mediated by individual movement among habitat patches, but simultaneously analysing survival, resource availability and habitat selection requires sophisticated analytical methods. We use a Bayesian multi-state capture-recapture model to estimate survival and movement probabilities of non-native black rats (Rattus rattus) across three habitats seasonally varying in resource availability. We find that survival varies most strongly with temporal rainfall patterns, overwhelming minor spatial variation among habitats. Surprisingly for a generalist forager, movement between habitats was rare, suggesting individuals do not opportunistically respond to spatial resource subsidy variations. Climate is probably the main driver of rodent population dynamics on islands, and even substantial habitat and seasonal spatial subsidies are overwhelmed in magnitude by predictable annual patterns in resource pulses. Marked variation in survival and capture has important implications for the timing of rat control.
引用
收藏
页码:767 / 774
页数:8
相关论文
共 50 条
  • [41] Temporal scales of resource variability: Effects on population dynamics of structured populations
    Hastings, Alan
    ECOLOGICAL COMPLEXITY, 2014, 18 : 6 - 9
  • [42] Winter resource selection by female mule deer Odocoileus hemionus: functional response to spatio-temporal changes in habitat
    Anderson, Eric D.
    Long, Ryan A.
    Atwood, M. Paul
    Kie, John G.
    Thomas, Terry R.
    Zager, Peter
    Bowyer, R. Terry
    WILDLIFE BIOLOGY, 2012, 18 (02) : 153 - 163
  • [43] Influence of climate and banana growth stages on spatio-temporal variation of banana mealybug Pseudococcus elisae Borchsenius (Hemiptera: Coccomorpha: Pseudococcidae) population ecology
    Becke, Henry Ikome
    Achiri, Tange Denis
    Okolle, Justin Nambangia
    Ntonifor, Nelson Neba
    Ngosong, Christopher
    AGRICULTURAL AND FOREST ENTOMOLOGY, 2024, 26 (04) : 508 - 521
  • [44] Refugia and dispersal promote population persistence under variable arid conditions: a spatio-temporal simulation model
    Cere, Julien
    Vickery, William L.
    Dickman, Christopher R.
    ECOSPHERE, 2015, 6 (11):
  • [45] Spatio-temporal processes drive fine-scale genetic structure in an otherwise panmictic seabird population
    Garrett, Lucy J. H.
    Myatt, Julia P.
    Sadler, Jon P.
    Dawson, Deborah A.
    Hipperson, Helen
    Colbourne, John K.
    Dickey, Roger C.
    Weber, Sam B.
    Reynolds, S. James
    SCIENTIFIC REPORTS, 2020, 10 (01)
  • [46] Analysing the spatio-temporal patterns of vegetation dynamics and their responses to climatic parameters in Meghalaya from 2001 to 2020
    Bhuyan, Mallika
    Singh, Beependra
    Vid, Swayam
    Jeganathan, C.
    ENVIRONMENTAL MONITORING AND ASSESSMENT, 2023, 195 (01)
  • [47] Spatio-temporal analyses of local biodiversity hotspots reveal the importance of historical land-use dynamics
    Fescenko, Anda
    Wohlgemuth, Thomas
    BIODIVERSITY AND CONSERVATION, 2017, 26 (10) : 2401 - 2419
  • [48] Some like it salty: Spatio-temporal dynamics of salinity differentially affect anurans and caudates in coastal wetlands
    Lorrain-Soligon, Lea
    Robin, Frederic
    Barbraud, Christophe
    Brischoux, Francois
    FRESHWATER BIOLOGY, 2023, 68 (07) : 1279 - 1292
  • [49] Are the spatio-temporal dynamics of soil-feeding termite colonies shaped by intra-specific competition?
    Bourguignon, Thomas
    Leponce, Maurice
    Roisin, Yves
    ECOLOGICAL ENTOMOLOGY, 2011, 36 (06) : 776 - 785
  • [50] Spatio-temporal land cover dynamics and emerging landscape patterns in western part of Lagos State, Nigeria
    Obiefuna, Jerry N.
    Okolie, Chukwuma J.
    Atagbaza, Ajiri O.
    Nwilo, Peter C.
    Akindeju, Folayele. O.
    ENVIRONMENTAL & SOCIO-ECONOMIC STUDIES, 2021, 9 (03): : 53 - 69