Life-history responses to temperature and seasonality mediate ectotherm consumer–resource dynamics under climate warming
Life-history responses to temperature and seasonality mediate ectotherm consumer–resource dynamics under climate warming
复制标题
生活史对温度和季节性的反应调节气候变暖下的变温消费者资源动态
DOI:
10.1098/rspb.2022.2377
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Klausmeier, Christopher A.
中科院分区:
文献类型:
--
作者:
Twardochleb, Laura A.;Zarnetske, Phoebe L.;Klausmeier, Christopher A.
Climate warming is altering life cycles of ectotherms by advancing phenology and decreasing generation times. Theoretical models provide powerful tools to investigate these effects of climate warming on consumer–resource population dynamics. Yet, existing theory primarily considers organisms with simplified life histories in constant temperature environments, making it difficult to predict how warming will affect organisms with complex life cycles in seasonal environments. We develop a size-structured consumer–resource model with seasonal temperature dependence, parameterized for a freshwater insect consuming zooplankton. We simulate how climate warming in a seasonal environment could alter a key life-history trait of the consumer, number of generations per year, mediating responses of consumer–resource population sizes and consumer persistence. We find that, with warming, consumer population sizes increase through multiple mechanisms. First, warming decreases generation times by increasing rates of resource ingestion and growth and/or lengthening the growing season. Second, these life-history changes shorten the juvenile stage, increasing the number of emerging adults and population-level reproduction. Unstructured models with similar assumptions found that warming destabilized consumer–resource dynamics. By contrast, our size-structured model predicts stability and consumer persistence. Our study suggests that, in seasonal environments experiencing climate warming, life-history changes that lead to shorter generation times could delay population extinctions.
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DOI:
--
发表时间:
1976
期刊:
影响因子:
--
作者:
B. R. Ingram;C. Jenner
通讯作者:
C. Jenner
DOI:
--
发表时间:
2018
期刊:
bioRxiv
影响因子:
--
作者:
M. Lindmark;J. Ohlberger;Magnus Huss;A. Gårdmark
通讯作者:
A. Gårdmark
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
B. R. Ingram
通讯作者:
B. R. Ingram
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
W. Gurney;P. Crowley;R. Nisbet
通讯作者:
R. Nisbet
影响因子:
1.6
作者:
Miller, Elizabeth T.;Klausmeier, Christopher A.
通讯作者:
Klausmeier, Christopher A.