東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Response of a Social Fish to Changes...

Gaynor, Ryan Layne,

Linked to FindBook

Google Book

Amazon

博客來

Response of a Social Fish to Changes in the Visual Environment /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Response of a Social Fish to Changes in the Visual Environment // Ryan Layne Gaynor.
Author:	Gaynor, Ryan Layne,
Description:	1 electronic resource (152 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
Contained By:	Dissertations Abstracts International86-11B.
Subject:	Limnology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32112074
ISBN:	9798314892916

Response of a Social Fish to Changes in the Visual Environment /
Gaynor, Ryan Layne,

Response of a Social Fish to Changes in the Visual Environment /Ryan Layne Gaynor. - 1 electronic resource (152 pages)

Source: Dissertations Abstracts International, Volume: 86-11, Section: B.

The collection and sharing of information between group members is a key component of sociality. In complex structured societies, individuals interact with group members repeatedly and collect and track valuable social information, such as rank, identity, and interaction history, to appropriately moderate their social behavior. An individual?s ability to effectively gather pertinent social information is strongly influenced by the properties of their sensory environment. Therefore, changes in the sensory environment have the potential to disrupt social-information gathering, potentially resulting in maladaptive changes in social behavior. Human induced rapid environmental changes (HIREC) are impacting an increasing number of ecosystems, resulting in novel changes in the sensory environment. Despite this, we still do not have a good understanding of how HIREC-induced changes in the sensory environment impact social behavior. The primary objective of this dissertation was to investigate how changes in the sensory environment affect individuals? perceived environment and subsequent social behavior. My central hypothesis is that novel changes in the sensory environment alter social behavior within groups by impairing the ability of individuals to recognize, discriminate between, and assess the behavior of groupmates. To test my hypothesis, I used a combination of mathematical modelling and laboratory experiments to explore how changes in the visual environment impact signal perception, social interactions, and cooperative behavior in the social cichlid Neolamprologus pulcher. In Chapter 2, I modelled optimal subordinate helping decisions under varying levels of uncertainty. I found that dominant uncertainty about subordinate identity had size-specific effects on subordinate helping, while increased dominant uncertainty about the amount of help being provided resulted in increased subordinate helping. I also show that changes in dominants? ability to assess the amount of help being provided strongly impacts subordinate fitness outcomes. In Chapter 3, I examined how a purely visual change in the environment affected subordinate helping, social behavior, and group structure. I found that under low light conditions agonistic interactions between dominant females and large subordinates were reduced, which may indicate a reduced ability of dominants to detect nearby subordinates. This reduction in agonistic interactions also resulted in more poorly defined dominance relationships. Subordinate helping did not vary with light level potentially indicating that helping is robust to short-term changes in the sensory environment. Post-treatment, dominance relationships did not return to their pre-disturbance states and agonistic interactions between dominant pairs increased, suggesting that groups of N. pulcher have low resilience to perturbations in the visual landscape. In Chapter 4, I assessed how elevated water turbidity affected the ability of N. pulcher to recognize and discriminate between conspecifics. I found that in high turbidity individuals? ability to recognize a conspecific was impaired, which could result in increased conflict with neighbors and groupmates. Individuals in high turbidity also took longer to begin interacting with the stimulus fish and were less active than individuals in low turbidity conditions. Collectively, this work advances our understanding how of HIREC can affect social species by showing how changes in the sensory environment impact signal perception, decision-making, and social behavior.

English

ISBN: 9798314892916Subjects--Topical Terms:

545788
Limnology.
Subjects--Index Terms:

Environmental changes

Response of a Social Fish to Changes in the Visual Environment /
LDR:05076nmm a22004573i 4500 001 2437440
005 20251119142816.5
006 m o d
007 cr|nu||||||||
008 261011s2025 miu||||||m |||||||eng d
020 $a 9798314892916
035 $a (MiAaPQD)AAI32112074
035 $a (MiAaPQD)OhioLINKosu174395777927585
035 $a AAI32112074
040 $a MiAaPQD $b eng $c MiAaPQD $e rda
100 1 $a Gaynor, Ryan Layne, $e author. $3 3828413
245 1 0 $a Response of a Social Fish to Changes in the Visual Environment / $c Ryan Layne Gaynor.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2025
300 $a 1 electronic resource (152 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: 86-11, Section: B.
500 $a Advisors: Hamilton, Ian M. Committee members: Carter, Gerald G.; Ludsin, Stuart.
502 $b Ph.D. $c The Ohio State University $d 2025.
520 $a The collection and sharing of information between group members is a key component of sociality. In complex structured societies, individuals interact with group members repeatedly and collect and track valuable social information, such as rank, identity, and interaction history, to appropriately moderate their social behavior. An individual?s ability to effectively gather pertinent social information is strongly influenced by the properties of their sensory environment. Therefore, changes in the sensory environment have the potential to disrupt social-information gathering, potentially resulting in maladaptive changes in social behavior. Human induced rapid environmental changes (HIREC) are impacting an increasing number of ecosystems, resulting in novel changes in the sensory environment. Despite this, we still do not have a good understanding of how HIREC-induced changes in the sensory environment impact social behavior. The primary objective of this dissertation was to investigate how changes in the sensory environment affect individuals? perceived environment and subsequent social behavior. My central hypothesis is that novel changes in the sensory environment alter social behavior within groups by impairing the ability of individuals to recognize, discriminate between, and assess the behavior of groupmates. To test my hypothesis, I used a combination of mathematical modelling and laboratory experiments to explore how changes in the visual environment impact signal perception, social interactions, and cooperative behavior in the social cichlid Neolamprologus pulcher. In Chapter 2, I modelled optimal subordinate helping decisions under varying levels of uncertainty. I found that dominant uncertainty about subordinate identity had size-specific effects on subordinate helping, while increased dominant uncertainty about the amount of help being provided resulted in increased subordinate helping. I also show that changes in dominants? ability to assess the amount of help being provided strongly impacts subordinate fitness outcomes. In Chapter 3, I examined how a purely visual change in the environment affected subordinate helping, social behavior, and group structure. I found that under low light conditions agonistic interactions between dominant females and large subordinates were reduced, which may indicate a reduced ability of dominants to detect nearby subordinates. This reduction in agonistic interactions also resulted in more poorly defined dominance relationships. Subordinate helping did not vary with light level potentially indicating that helping is robust to short-term changes in the sensory environment. Post-treatment, dominance relationships did not return to their pre-disturbance states and agonistic interactions between dominant pairs increased, suggesting that groups of N. pulcher have low resilience to perturbations in the visual landscape. In Chapter 4, I assessed how elevated water turbidity affected the ability of N. pulcher to recognize and discriminate between conspecifics. I found that in high turbidity individuals? ability to recognize a conspecific was impaired, which could result in increased conflict with neighbors and groupmates. Individuals in high turbidity also took longer to begin interacting with the stimulus fish and were less active than individuals in low turbidity conditions. Collectively, this work advances our understanding how of HIREC can affect social species by showing how changes in the sensory environment impact signal perception, decision-making, and social behavior.
546 $a English
590 $a School code: 0168
650 4 $a Limnology. $3 545788
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Environmental science. $3 677245
650 4 $a Conservation biology. $3 535736
653 $a Environmental changes
653 $a Neolamprologus pulcher
653 $a Turbidity
653 $a Social behaviors
653 $a Sensory ecology
690 $a 0408
690 $a 0793
690 $a 0792
690 $a 0768
710 2 $a The Ohio State University. $b Evolution, Ecology and Organismal Biology. $e degree granting institution. $3 3828414
720 1 $a Hamilton, Ian M. $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 86-11B.
790 $a 0168
791 $a Ph.D.
792 $a 2025
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32112074