東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton : = From Community Ecology to Individual Physiology.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton :/
其他題名:	From Community Ecology to Individual Physiology.
作者:	Sun, Xinyu.
面頁冊數:	1 online resource (263 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-11, Section: B.
Contained By:	Dissertations Abstracts International84-11B.
標題:	Physiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30402962click for full text (PQDT)
ISBN:	9798379472498

Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton : = From Community Ecology to Individual Physiology.
Sun, Xinyu.

Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton :From Community Ecology to Individual Physiology. - 1 online resource (263 pages)

Source: Dissertations Abstracts International, Volume: 84-11, Section: B.

Thesis (Ph.D.)--Queen's University (Canada), 2023.

Includes bibliographical references

Freshwater ecosystems are being disturbed by multiple new and ongoing stressors that often occur simultaneously or asynchronously. Among those stressors, fluctuations in salinity levels and heatwaves that are becoming more frequent and intensified can individually and interactively impact freshwater organisms. However, we lack a good understanding of their joint impacts and how the temporal fluctuation of these stressors affects the impacts. To help fill this gap, I conducted field and lab experiments using freshwater zooplankton to investigate their interactive effects on communities, populations, and physiological conditions. My results show that the joint effects of elevated salinity and heatwaves vary at different scales: antagonism (i.e., the joint effect is less than the sum of each individual effect) at the community level, mainly driven by species compositional changes; no interaction at the population level, caused by evolutionary changes; synergism (i.e., the joint effect is greater than the sum of each individual effect) at the individual level, due to physiological responses. I also found that the interactions between stressors change with different time intervals between them, because of the legacy effect of the prior stressor or population and community recovery processes. My work contributes to the area of multiple-stressor interaction by showing the joint effects of elevated salinity and heatwave conditions at different levels of biological organization. The findings demonstrate that ecosystem management and restoration efforts that commonly just address the effect of a single stressor should consider prior stressor exposure, and the combined effects of two asynchronously occurring stressors can be more accurately predicted when accounting for the time intervals between the exposures. Moreover, the upscaling of lower-level (physiological and individual) results to the community or ecosystem level, which is sometimes used in the management of ecosystems, should be done with caution since there can be inconsistency in responses across ecological scales.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379472498Subjects--Topical Terms:

518431
Physiology.
Index Terms--Genre/Form:

542853
Electronic books.

Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton : = From Community Ecology to Individual Physiology.
LDR:03545nmm a2200421K 4500 001 2359398
005 20230917193936.5
006 m o d
007 cr mn ---uuuuu
008 241011s2023 xx obm 000 0 eng d
020 $a 9798379472498
035 $a (MiAaPQ)AAI30402962
035 $a (MiAaPQ)QueensUCan_197431457
035 $a AAI30402962
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Sun, Xinyu. $3 3699997
245 1 0 $a Interactive Effects of Elevated Salinity and Heatwaves on Freshwater Zooplankton : $b From Community Ecology to Individual Physiology.
264 0 $c 2023
300 $a 1 online resource (263 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 84-11, Section: B.
500 $a Advisor: Arnott, Shelley.
502 $a Thesis (Ph.D.)--Queen's University (Canada), 2023.
504 $a Includes bibliographical references
520 $a Freshwater ecosystems are being disturbed by multiple new and ongoing stressors that often occur simultaneously or asynchronously. Among those stressors, fluctuations in salinity levels and heatwaves that are becoming more frequent and intensified can individually and interactively impact freshwater organisms. However, we lack a good understanding of their joint impacts and how the temporal fluctuation of these stressors affects the impacts. To help fill this gap, I conducted field and lab experiments using freshwater zooplankton to investigate their interactive effects on communities, populations, and physiological conditions. My results show that the joint effects of elevated salinity and heatwaves vary at different scales: antagonism (i.e., the joint effect is less than the sum of each individual effect) at the community level, mainly driven by species compositional changes; no interaction at the population level, caused by evolutionary changes; synergism (i.e., the joint effect is greater than the sum of each individual effect) at the individual level, due to physiological responses. I also found that the interactions between stressors change with different time intervals between them, because of the legacy effect of the prior stressor or population and community recovery processes. My work contributes to the area of multiple-stressor interaction by showing the joint effects of elevated salinity and heatwave conditions at different levels of biological organization. The findings demonstrate that ecosystem management and restoration efforts that commonly just address the effect of a single stressor should consider prior stressor exposure, and the combined effects of two asynchronously occurring stressors can be more accurately predicted when accounting for the time intervals between the exposures. Moreover, the upscaling of lower-level (physiological and individual) results to the community or ecosystem level, which is sometimes used in the management of ecosystems, should be done with caution since there can be inconsistency in responses across ecological scales.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Physiology. $3 518431
650 4 $a DNA methylation. $3 3560639
650 4 $a Plankton. $3 1299572
650 4 $a Adaptation. $3 3562958
650 4 $a Community. $3 531337
650 4 $a Biomass. $3 1013462
650 4 $a Energy. $3 876794
650 4 $a Metabolism. $3 541349
650 4 $a Lipids. $3 558980
650 4 $a Aquatic ecosystems. $3 3560371
650 4 $a Summer. $3 800184
650 4 $a Lakes. $3 546147
650 4 $a Endangered & extinct species. $3 3560222
650 4 $a Design. $3 518875
650 4 $a Taxonomy. $3 3556303
650 4 $a Salt. $3 865951
650 4 $a Food chains. $3 3680771
650 4 $a Salinity. $3 594109
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Biochemistry. $3 518028
650 4 $a Biological oceanography. $3 2122748
650 4 $a Ecology. $3 516476
650 4 $a Microbiology. $3 536250
650 4 $a Wildlife conservation. $2 fast $3 542165
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0791
690 $a 0389
690 $a 0719
690 $a 0792
690 $a 0487
690 $a 0416
690 $a 0329
690 $a 0410
690 $a 0284
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Queen's University (Canada). $3 1017786
773 0 $t Dissertations Abstracts International $g 84-11B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30402962 $z click for full text (PQDT)