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

Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix)./
作者:	Sockman, Jesse C.
面頁冊數:	1 online resource (111 pages)
附註:	Source: Masters Abstracts International, Volume: 82-10.
Contained By:	Masters Abstracts International82-10.
標題:	Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28025930click for full text (PQDT)
ISBN:	9798708722393

Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix).
Sockman, Jesse C.

Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix). - 1 online resource (111 pages)

Source: Masters Abstracts International, Volume: 82-10.

Thesis (M.S.)--Eastern Kentucky University, 2020.

Includes bibliographical references

For many species, life history events are cyclical and often correspond to specific environmental conditions. As a result of environmental variability, the optimal conditions that regulate the range and activity of highly regulated cyclical organisms, like cicadas, are subject to temporal change. Variability in cicada emergence and abundance has been shown to impact the species that rely on the rapid influx of nutrients. One such predator is the Eastern Copperhead (Agkistrodon contortrix) that has been noted feeding on emerging cicadas throughout their range. In eastern Kentucky, observations of copperheads congregating to feed on cicadas has been documented in recreational areas. This creates an urgency to understand the driving factors of the timing of this relationship to reduce negative human-copperhead interactions. The objective of this research was to investigate variables (temperature, humidity, precipitation, moon phase, photoperiod, and growing-degree days) in connection with the timing of copperhead movement and cicada emergence. Nightly visual encounter surveys were conducted to determine copperhead and cicada relative abundances while observing behavioral interactions. Climatic data and environmental factors were collected during each survey or through the Midwestern Regional Climate Center and US Naval Observatory. Each year copperheads congregated consistently after the initial rush of cicada emergence with arrival fluctuating only a day across three years. The initial arrival of copperheads at the site was positively related to increases in growing degree day accumulation and cicada abundance. Increases throughout the season in copperhead abundance was positively associated with temperature, growing degree day accumulation, and cicada abundance. In contrast, initiation of cicada emergence was negatively related to temperature and relative humidity. This may be due to the pulsating nature or presence of a thermal minimum threshold for initial cicada emergence. Increased cicada abundance throughout the season was positively related to humidity and negatively related to moon phase. Higher humidity has often been associated with successful ecdysis of cicadas inferring more successful emergence on higher humidity nights. Overall, analyses suggest that cicada emergence at the site is a preemptive indicator of copperhead abundance, and growing degree day accumulation may have management implications for predicting copperhead arrival at foraging sites within the Daniel Boone National Forest.

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

Mode of access: World Wide Web

ISBN: 9798708722393Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Agkistrodon ContortrixIndex Terms--Genre/Form:

542853
Electronic books.

Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix).
LDR:04024nmm a2200409K 4500 001 2361322
005 20231019120554.5
006 m o d
007 cr mn ---uuuuu
008 241011s2020 xx obm 000 0 eng d
020 $a 9798708722393
035 $a (MiAaPQ)AAI28025930
035 $a AAI28025930
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Sockman, Jesse C. $3 3701979
245 1 0 $a Impacts of Driving Factors on Annual Cicada Emergence in Relation to the Seasonal Abundance of Eastern Copperheads (Agkistrodon Contortrix).
264 0 $c 2020
300 $a 1 online resource (111 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: Masters Abstracts International, Volume: 82-10.
500 $a Advisor: Richter, Stephen C.
502 $a Thesis (M.S.)--Eastern Kentucky University, 2020.
504 $a Includes bibliographical references
520 $a For many species, life history events are cyclical and often correspond to specific environmental conditions. As a result of environmental variability, the optimal conditions that regulate the range and activity of highly regulated cyclical organisms, like cicadas, are subject to temporal change. Variability in cicada emergence and abundance has been shown to impact the species that rely on the rapid influx of nutrients. One such predator is the Eastern Copperhead (Agkistrodon contortrix) that has been noted feeding on emerging cicadas throughout their range. In eastern Kentucky, observations of copperheads congregating to feed on cicadas has been documented in recreational areas. This creates an urgency to understand the driving factors of the timing of this relationship to reduce negative human-copperhead interactions. The objective of this research was to investigate variables (temperature, humidity, precipitation, moon phase, photoperiod, and growing-degree days) in connection with the timing of copperhead movement and cicada emergence. Nightly visual encounter surveys were conducted to determine copperhead and cicada relative abundances while observing behavioral interactions. Climatic data and environmental factors were collected during each survey or through the Midwestern Regional Climate Center and US Naval Observatory. Each year copperheads congregated consistently after the initial rush of cicada emergence with arrival fluctuating only a day across three years. The initial arrival of copperheads at the site was positively related to increases in growing degree day accumulation and cicada abundance. Increases throughout the season in copperhead abundance was positively associated with temperature, growing degree day accumulation, and cicada abundance. In contrast, initiation of cicada emergence was negatively related to temperature and relative humidity. This may be due to the pulsating nature or presence of a thermal minimum threshold for initial cicada emergence. Increased cicada abundance throughout the season was positively related to humidity and negatively related to moon phase. Higher humidity has often been associated with successful ecdysis of cicadas inferring more successful emergence on higher humidity nights. Overall, analyses suggest that cicada emergence at the site is a preemptive indicator of copperhead abundance, and growing degree day accumulation may have management implications for predicting copperhead arrival at foraging sites within the Daniel Boone National Forest.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Ecology. $3 516476
650 4 $a Entomology. $3 615844
653 $a Agkistrodon Contortrix
653 $a Eastern Copperhead snakes
653 $a Cicada emergence
653 $a Cicada abundance
653 $a Seasonality
653 $a Daniel Boone National Forest
653 $a Kentucky
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0329
690 $a 0353
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Eastern Kentucky University. $b Department of Biological Sciences. $3 3175768
773 0 $t Masters Abstracts International $g 82-10.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28025930 $z click for full text (PQDT)