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Behav Ecol Sociobiol 55(2)

Subject: Behav Ecol Sociobiol 55(2)
From: Jerome SUEUR <>
Date: Mon, 01 Dec 2003 10:10:26 -0800
<pre style="margin: 0em;">Behavioral Ecology and Sociobiology
 Issue: Volume 55, Number 2
Date: December 2003
 Pages: 144 - 150</pre><br>
 <tt>An experimental examination of female preference patterns for<br>
 components of the male advertisement call in the quacking frog, Crinia 
 georgiana      <br>
 p. 144 <br>
 Michael J. Smith, J. Dale Roberts</tt><br>
 <pre style="margin: 0em;">URL of article:
 <a  href=""; 
 <pre style="margin: 0em;"><br>J. Sueur
 School of Biological Sciences
 University of Bristol
 Woodland Rd,Bristol,BS81UG,UK
 Phone : + 44 (0) 117 928 8656
 Fax:    + 44 (0) 117 331 6737</pre><br>

>From  Mon, 01 Dec 2003 13:20:08 -0800
From: Brian Mitchell <>
Date: Mon, 01 Dec 2003 13:20:08 -0800
Subject: J Mammalogy 84(4)

<tt>Here are the bioacoustics articles from J Mammalogy 84(4).  I've downloaded 
 PDFs of all articles in this e-mail, and will save them for a few weeks. If 
 list members need copies feel free to e-mail me a request.</tt><br>
 <tt>Darden, Safi K., Torben Dabelsteen, and Simon Boel Pedersen. 2003. A 
 Potential Tool for Swift Fox (Vulpes velox) Conservation: Individuality of 
 Long-Range Barking Sequences. Journal of Mammalogy:84(4),1417-1427.<br>
     ABSTRACT:    Vocal individuality has been found in a number canid 
 species. This natural variation can have applications in several aspects of 
 species conservation, from behavioral studies to estimating population 
 density or abundance. The swift fox (Vulpes velox) is a North American 
 canid listed as endangered in Canada and extirpated, endangered, or 
 threatened in parts of the United States. The barking sequence is a 
 long-range vocalization in the species' vocal repertoire. It consists of a 
 series of barks and is most common during the mating season. We analyzed 
 barking sequences recorded in a standardized context from 20 captive 
 individuals (3 females and 17 males) housed in large, single-pair 
 enclosures at a swift fox breeding facility. Using a discriminant function 
 analysis with 7 temporal and spectral variables measured on barking 
 sequences, we were able to correctly classify 99% of sequences to the 
 correct individual. The most important discriminating variable was the mean 
 spacing of barks in a barking sequence. Potential applications of such 
 vocal individuality are discussed.<br>
     Keywords: animal communication, Canidae, conservation, individuality, 
 swift fox, vocalization, Vulpes velox.</tt><br>
 <tt><br>Macias, Silvio, and Emanuel C. Mora. 2003. Variation in Echolocation 
 of Pteronotus quadridens (Chiropters: Mormoopidae) in Cuba. Journal of 
     ABSTRACT:    Echolocation calls were recorded from Pteronotus 
 quadridens flying in the field and in an enclosed space. In the field, 
 search calls contained 1 or 2 harmonics. Patterns of call design show a 
 segment of quasi-constant frequency (QCF--2nd-harmonic at 81-84 kHz), 
 followed by a downward frequency-modulated (FM) component. The 2nd harmonic 
 was always more intense than the 1st. Search, approach, and terminal phases 
 of calls were described during hunting sequences of P. quadridens. The 
 transition between call phases was characterized by monotonic variations in 
 some acoustic parameters, including a decrease in call duration and an 
 increase in repetition rate, bandwidth, and slope of the FM component. We 
 also analyzed calls emitted by bats flying in confined spaces that 
 consistently contained 3 harmonics, of which the 2nd harmonic contained the 
 greatest energy. The values of call duration were shorter and bandwidth was 
 higher than values characterizing calls emitted during the search phase in 
 the field.<br>
     Keywords: bats, call variation, echolocation, Pteronotus 
 <tt><br>NOTE: There was a special section on social biology of rodents in this 
 issue.  These articles are probably tangential to bioacoustics (the focus 
 is primarily on chemical communication), but here is the info for articles 
 that may mention vocal communication:</tt><br>
 <tt>Lacey, Eileen A., and Solomon, Nancy G. 2003. Social Biology of Rodents: 
 Trends, Challenges, and Future Directions. Journal of Mammalogy:84(4), 
     ABSTRACT:    Papers in this Special Feature were presented at a 
 symposium on the social biology of rodents that was held in June 2001 at 
 the 81st Annual Meeting of the American Society of Mammalogists. Our 
 decision to host a symposium on this topic resulted from our realization 
 that although rodents have played a vital role in research on social 
 behavior, no recent summaries of the social biology of these animals were 
 available. Given the number of biological disciplines, research strategies, 
 and species that are relevant to this topic, a comprehensive review of 
 rodent social biology was not possible. Instead, in structuring the 
 symposium, we chose to focus on a subset of behavioral issues for which 
 studies of rodents currently are providing exciting new insights. Topics 
 selected for inclusion--communication, kin recognition, philopatry, and 
 sociality--are timely and are of considerable interest to biologists 
 studying a wide array of animal taxa. Thus, papers presented in the 
 symposium reflect recent advances not only in our knowledge of rodent 
 social biology but also in our conceptual understanding of animal social 
     Keywords: communication, kin recognition, philopatry, rodents, social 
 biology, sociality.</tt><br>
 <tt><br>Mateo, Jill M. 2003. Kin Recognition in Ground Squirrels and Other 
 Rodents.  Journal of Mammalogy:84(4), 1163-1181.<br>
     ABSTRACT:    Significant advances have been made in understanding kin 
 recognition as it pertains to nepotism (preferential treatment of kin) and 
 mate choice (optimization of inbreeding and outbreeding). Yet complementary 
 knowledge about how animals discriminate conspecifics on the basis of 
 genetic relatedness remains unclear for most species. Because of the 
 diversity of their scent sources and highly developed olfactory systems, 
 rodents present a unique opportunity for examining chemical communication 
 and kin recognition as a function of sociality. I review general processes 
 of kin recognition and summarize mechanisms of recognition used by rodents. 
 As a case study, I also examine recognition systems of ground squirrels, 
 relating odor production and perception to differences in patterns of 
 nepotism. Belding's ground squirrels (Spermophilus beldingi) produce >= 2 
 odors (from oral and dorsal glands) that correlate with relatedness (kin 
 labels), and they are able to use these odors to make precise 
 discriminations among their unfamiliar relatives. Thus, S. beldingi can 
 recognize their distant female kin and male kin, even though these kin are 
 not treated nepotistically (e.g., through cooperative territory defense or 
 alarm call production). Furthermore, S. beldingi use these kin labels and 
 recognition abilities to interact differentially with conspecifics as a 
 function of relatedness. In ground squirrels and in other rodents, 
 components of the kin recognition process (production of recognition cues, 
 discrimination of these cues, and differential treatment of conspecifics) 
 have evolved differentially among even closely related species. Kin 
 recognition abilities in the absence of nepotism might reflect selection 
 for inbreeding avoidance mechanisms, in addition to sex-biased natal 
 dispersal. Together, data and the review demonstrate that recognition 
 abilities cannot be predicted on the basis of sociality alone and suggest 
 that comparative analyses, by multiple assays of discrimination, might be 
 necessary to understand variation in the function of kin recognition within 
 and across species.<br>
     Keywords: ground squirrels, kin discrimination, kin recognition, mate 
 choice, nepotism, odors, olfactory behavior, rodents, Spermophilus.</tt><br>
 <tt><br>Tang-Martinez, Zuleyma. 2003. Emerging Themes and Future Challenges: 
 Forgotten Rodents, Neglected Questions. Journal of 
     ABSTRACT:    I identify 4 topics for future research. 1) Our knowledge 
 of rodents from the developing world is limited, yet recent evidence 
 suggests that many species are highly social. I concentrate on South 
 American rodents to demonstrate the wealth of information available when we 
 study these taxa and incorporate the findings into our current paradigms of 
 social evolution. 2) Relatively little is known about proximate mechanisms 
 that govern social systems. Research on the neuroendocrine basis of 
 pair-bond formation and paternal care has provided valuable insights, but 
 many questions remain. 3) Mounting evidence indicates that, in addition to 
 genetics, social environment can play a major role in behavioral and 
 physiological development. Studies on effects of early social environment 
 would contribute to our understanding of ontogeny of individual differences 
 in social species. 4) Recent evidence suggests a significant geographic 
 variation in social characteristics of some rodent species. The extent and 
 ecological correlates of such intraspecific variation merit further 
     Keywords: early environment, geographic variation, Latin America, 
 neuroendocrinology, rodents, sociality.</tt><br>
 <pre style="margin: 
 Brian R. Mitchell
 Ph.D. Candidate
 University of California, Berkeley
 Department of Environmental Science, Policy and Management

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