A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 143

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 143
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 209
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3098
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Attempt to read property "Count" on bool

Filename: helpers/my_audit_helper.php

Line Number: 3100

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3100
Function: _error_handler

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Dominance rank and the presence of sexually receptive females predict feces-measured body temperature in male chimpanzees. | LitMetric

Dominance rank and the presence of sexually receptive females predict feces-measured body temperature in male chimpanzees.

Behav Ecol Sociobiol

School of Human Evolution and Social Change and Institute of Human Origins, Arizona State University, 900 S. Cady Mall, Tempe, AZ 85281, USA.

Published: January 2020

AI Article Synopsis

  • - Quantifying mating costs is essential for understanding trade-offs in life history, and body temperature serves as an important metric, but traditional measurement methods are invasive, especially for endangered species like great apes.
  • - Researchers validated fecal temperature as a noninvasive proxy for body temperature, finding it reliable in humans and subsequently applying it to wild chimpanzees in Uganda, where fecal temperatures averaged 35.8 °C with significant variations linked to male social behavior.
  • - The study revealed that male chimpanzees exhibit higher fecal temperatures on days when sexually receptive females are present, suggesting that mating behavior and physiology significantly influence temperature variations, making fecal temperature a useful tool for studying metabolic costs in wildlife.

Article Abstract

Quantifying the costs of mating is key for understanding life-history trade-offs. As a reflection of metabolic rate, body temperature is one metric for assaying these costs. However, conventional methods for measuring body temperature are invasive and unsuitable for the study of free-living populations of endangered species, including great apes. A promising proxy for body temperature is fecal temperature, the internal temperature of fecal deposits shortly following defecation. We validated this method with humans, finding that maximum fecal temperature is a reliable proxy for rectal temperature. We then applied this method to wild chimpanzees () at Ngogo, Kibale National Park, Uganda. We collected and analyzed 101 fecal temperature measurements from 43 adult chimpanzees (male: = 28; female: = 15). Chimpanzee fecal temperature ranged from 33.4 to 38.9 °C, with a mean of 35.8 °C. Although fecal temperature was not predicted by sex, age, or ambient temperature, male fecal temperature was 1.1 °C higher on days when sexually receptive females were present and was positively correlated with male dominance rank. Post hoc analyses showed that overall copulation rates, but not aggression rates, were positively correlated with fecal temperature, suggesting that sexual physiology and behavior best explain mating-related temperature variation. Together, these results indicate fecal temperature is a reliable proxy for core body temperature in large-bodied mammals, captures metabolic costs associated with male mating behavior, and represents a valuable noninvasive tool for biological field research.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8168630PMC
http://dx.doi.org/10.1007/s00265-019-2788-3DOI Listing

Publication Analysis

Top Keywords

fecal temperature
32
body temperature
20
temperature
17
fecal
9
dominance rank
8
sexually receptive
8
receptive females
8
temperature male
8
temperature fecal
8
temperature reliable
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!