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1.
Across a wide range of temperatures established in the laboratory, we tape–recorded the advertisement calls of 76 freshly caught Hyla labialis males from three elevationally separated populations in the Eastern Andes of Colombia. Each male was tested once at a single temperature and returned to his capture site after measurement of his snout–vent length. We measured and averaged three characteristics of five to ten successive calls for each individual: number of pulses per call, pulse repetition rate, and call duration. We found that calling activity occurred within temperature ranges that overlapped among frogs from different elevations, but widened and shifted downward with increasing altitude of origin. Males from all sites called at temperatures higher, but not lower, than those naturally occurring during their nightly activity period. No decline in vocal performance was apparent when frogs extended their calling activity into the range of high temperatures selected for basking. Both snout–vent length and temperature affected pulse repetition rate and call duration, while the number of pulses per call was temperature–independent. Compared to the smaller males from lower elevations, the larger, high–mountain males had calls with significandy more pulses, a lower pulse repetition rate, and longer duration. Within each population, rising temperatures caused pulse repetition rate to increase and call duration to decrease significantly, whereas the number of pulses per call remained unchanged. Pulse repetition rate of highland males was the factor least affected by temperature, and it was less sensitive to night temperatures than to day temperatures. This, together with their capacity to call at low temperatures, suggests that highland frog calls are cold adapted. 相似文献
2.
饰纹姬蛙求偶鸣声特征分析 总被引:7,自引:0,他引:7
2012年5月,用SX950录音笔和Praat声音分析软件对浙江丽水繁殖季节饰纹姬蛙(Microhyla ornata)求偶鸣声进行录制和特征分析.结果表明,饰纹姬蛙发出的求偶鸣声具有单一谐波鸣声结构、多脉冲(7、9~16)及纺锤形振幅等特征;所有鸣声主频率范围为1.22~4.09 kHz (n=233),且由不同脉冲数组成的鸣声主频率平均值几近相等;叫声时程随脉冲数的增加而增大,脉冲时程在不同脉冲数鸣声中的大小几近相等,但最后一个脉冲的时程大小≤其他脉冲;脉冲间隔与叫声时程则刚好相反,即叫声时程越短,脉冲间隔就越大.在7个脉冲的鸣声中,其脉冲间隔最大,脉冲率最小;而在16个脉冲的鸣声中,脉冲间隔则最小,脉冲率最大.除7个脉冲和16个脉冲鸣声的脉冲率分别与其他鸣声存在显著性差异以外,随着叫声时程和脉冲数的增加,脉冲率也出现相应变化.在声强方面,除16个脉冲鸣声与其余所有的脉冲鸣声出现显著性差异以外,其他脉冲鸣声之间的两两比较差异不显著.丽水种群与其他5个地理种群(杭州、宣城、Kamoor、Bajipe和Padil)的鸣声特征比较显示饰纹姬蛙在不同地理种群的鸣声结构相似,而鸣声主频率、叫声时程、脉冲时程及脉冲率等在6个地理种群种均出现不同程度的差异.了解不同物种的声信号特征有助于更好地理解动物通讯行为及其进化特点. 相似文献
3.
Phillip S. Lobel 《Environmental Biology of Fishes》1998,52(4):443-452
Sounds were produced by the males of two species of cichlid fishes while courting females. Each courtship sound consisted of a series of distinct pulses occurring in rapid succession. Courtship sounds produced by Tramitichromis cf. intermedius and Copadichromis conophorus were significantly different in pulse rate and individual pulse durations. For C. conophorus calls (n=127) the mean ± sd number of pulses per call was 10 ± 3 and call duration was 181 ± 59 ms. There was a significant positive linear relationship between call duration and the number of pulses (r2=0.912, p < 0.001). The dominant frequency of the pulses in calls was 471 ± 50 (range 372–594) Hz (n=40 calls). T. cf. intermedius also produced a pulsed courtship call; data (mean ± sd) from two male T. cf. intermedius: 9 ± 2 pulses per call and duration 199 ± 44 ms (n=20 calls). The linear regression between call duration and number of pulses was positive (r2=0.463, p=0.001). Pulse rate within calls of T. cf. intermedius compared to C. conophorus were significantly different (p=0.018). Individual pulse durations were also significantly different (p=0.043) between species. However, interpulse intervals were not significantly different (p=0.177). These cichlids produced courtship sounds that were distinct by individual pulse durations and by pulse repition rate in a call. 相似文献
4.
Tadamichi Morisaka Yayoi Yoshida Yuichiro Akune Hideki Mishima Sayo Nishimoto 《Journal of Ethology》2013,31(2):141-149
Belugas (Delphinapterus leucas) produce echolocation clicks, burst pulses, and whistles. The sounds of 3 captive belugas were recorded using 2 hydrophones at the Port of Nagoya Public Aquarium. There were stable individual differences in the pulse patterning of one type of pulsed sounds (PS1 call), suggesting that belugas use these as “signature” calls. Eighty-eight percent of PS1 calls initiated PS1 calls from other animals within 1 s. PS1 calls repeated by the same individual occurred primarily when other belugas did not respond within 1 s of the first call. Belugas delayed successive PS1 calls when other belugas responded with a PS1 call within 1 s. There was no clear temporal pattern for whistles. It appears that the time limit for responding to calls is 1 s after the initial call. If other individuals do not respond to the PS1 call of a beluga within 1 s, belugas tend to repeat the call and wait for a response. The results of this study suggest that the belugas exchange their individual signatures by using PS1 calls, in a manner similar to that of signature whistles used by bottlenose dolphins. 相似文献
5.
We investigated the effects of different doses (0, 2.5, 25 and 250 μg) of the neuropeptide arginine vasotocin (AVT) on the calling characteristics of the grey treefrog in a chorus in its natural habitat. AVT changed some call characteristics known to influence social behaviour in grey treefrogs. It increased call duration and number of pulses in a call, but not dominant frequency, call rate or pulse effort. Saline injections and handling did not produce significant changes in any of the call characteristics. In addition, individual animals injected with AVT only rarely produced call characteristics that were outside of the range found in the preinjection measurements, suggesting that AVT does not cause abnormal calling behaviour. Other researchers have demonstrated that longer calls with more pulses are produced by males when chorus densities increase, and females display a strong preference for longer calls with more pulses. This suggests that the changes induced by AVT injections may have functional consequences in social interactions. We previously demonstrated that AVT-injected males (25 μg AVT) displaced resident males from calling sites through changes in calling behaviour under natural field conditions. Our results indicate that changes in call duration and pulse number could contribute to the unmanipulated resident male's behaviour towards the AVT-injected intruder, perhaps because the calls are more attractive to females or because the calls are perceived as more aggressive. Copyright 2000 The Association for the Study of Animal Behaviour. 相似文献
6.
7.
Runkle Laura S.; Wells Kentwood D.; Robb Catherine C.; Lance Stacey L. 《Behavioral ecology》1994,5(3):318-325
We investigated individual, nightly, and seasonal variationin calling behavior of a population of gray tree frogs (Hylaversicolor) from Connecticut, USA. Repeated recordings of individualmales on seven nights revealed significant differences amongmales in calling rate on all but one night and differences innumber of pulses per call and number of pulses produced perhour (pulse effort) on four nights. Most males reduced callingactivity late at night (after 2230 h), but some maintained arelatively steady rate of call production before dropping outof the chorus. Data collected for 26 individuals recorded onthree or more nights throughout the breeding season revealedsignificant differences among males in calling rate, numberof pulses per call, and pulse effort, but repeatabilities forall three variables were low (0.17, 0.35, and 0.12, respectively).The highest repeatability was for number of pulses per call,a variable strongly influenced by proximity to calling neighbors,probably because males often interacted with neighbors at similardistances on several successive nights. Males tended to reducethe number of pulses per call as the season progressed and thedistance between neighbors decreased, but they showed no clearseasonal change in calling rate or pulse effort. There was asubstantial seasonal decline in the number of hours of chorusactivity, resulting in a median decrease of 43% in nightly energyexpenditure by calling males. 相似文献
8.
Michael E. Smith Kyle K. Weller Boyd Kynard Yoshimi Sato Alexandre L. Godinho 《Environmental Biology of Fishes》2018,101(2):327-339
Passive acoustic monitoring (PAM) of fish sounds has been used as a means of detecting the presence and abundance of fishes. Prior to PAM, bioacoustical analyses of sounds are needed to characterize species-specific characteristics of calls. With hydrophones placed in outdoor ponds, we recorded the mating calls of three species of prochilodontid fishes (Prochilodus argenteus, P. costatus, P. lineatus). Fish were induced to spawn and call by injection of carp (Cyprinus carpio) pituitary gland extract. We recorded a total of 394 pulse train calls and additional single pulse calls that were not associated with trains. The trains of all three species were similar in nature - series of low frequency pulses that lasted from 1 to 11 s, often with an initial rapid rise followed by a slow tapering of pulse amplitude. Dominant frequency of single pulses and trains was greatest in P. lineatus, with P. costatus and P. argenteus exhibiting lower single pulse dominant frequencies, and P. costatus having lower train dominant frequency. With data from the three species combined, the dominant frequency of pulses significantly increased with fish standard length. There was also a significant linear relationship between the dominant frequency of pulses and trains. Discriminant function analysis showed that differences in train dominant frequency, pulse duration, and pulse period between the three species were significant enough to discriminate between them. This study was the first to fully characterize the sounds of these three Prochilodus species, and should assist fisheries biologists monitoring spawning behavior in these species. 相似文献
9.
Rana tigrina andTomopterna breviceps occur as sympatric species at Dharwad, India. Sexually mature males produce advertisement calls. The advertisement call of
both the species consist of a number of calls produced in series forming a call group. Each call group ofRana tigrina comprises 10–40 calls, whereas that ofTomopterna breviceps consists 13–141 calls. Each call consists of a pulse group with variable number of pulses which lack pulse interval. Calls
of both the species exhibit similarities in (i) call consisting of series of calls with a pulse group in each call, (ii) absence
of pulse interval within the pulse group, (iii) the amplitude of the first pulse being always small, and (iv) the frequency
spectrum beginning from 200 Hz. Based on the similarities in the spectral features of the calls, it is suggested that the
two species may be closely related to each other. 相似文献
10.
Relatively few data exist on population differences in the vocal behavior of mammals. Geographic variation in calls is of special interest because of the implications for resolving evolutionary and behavioral questions. For example, information on geographic variation in vocalizations complements morphological and molecular data used to infer phylogenetic relationships and provides evidence for the mechanisms underlying call development. A quantitative acoustic analysis of orangutan long calls was undertaken, comparing flanged adult males from four geographically distinct sites across Borneo and Sumatra, revealing consistent differences among the calls of individuals. Long calls produced by orangutans from the four sites in Borneo and Sumatra differ in quantitative acoustic measures. Discriminant function analysis reveals that acoustic variables can be used in combination to assign calls to the correct individual, site and island at rates higher than that expected by chance. Specifically, four acoustic parameters proved reliable for distinguishing among the individuals, between sites, and across the two islands that arguably represent populations from separate species or subspecies. Although Bornean and Sumatran long calls share a repetitive structure and show similar call rates (0.100–0.500 LCs/h) and maximum frequency bands (0.400–1.500 kHz), they differ significantly in the number of pulses per call, call speed, call duration, bandwidth, pulse duration, and dominant frequency. Strong consistency in these acoustic parameters is also seen among males within sites and the observed variation may allow for individual recognition. Individual identification by call structure presumably benefits dispersed orangutans, where individuals characteristically forage independently and both encounters and interactions with signaling males are highly variable and largely dependent on context. Acoustic recognition of callers facilitates the choice of which males to join or avoid, thus allowing receivers to manipulate potential costs and benefits of association. 相似文献
11.
H. Schneider U. Sinsch Theodora S. Sofianidou 《Journal of Zoological Systematics and Evolutionary Research》1993,31(1):47-63
The structure of the mating call of lake frogs (referred to as R. ridibunda) from 16 populations in Greece was analyzed for local variation using multivariate statistics. The populations of Thrace and of the island of Samothraki form a group giving the same type of mating call, whereas the mating call of the other populations differs in the degree of temperature dependence of four parameters, and specifically in the number of pulses/pulse group and pulse groups/call. Discriminant functions distinguish even single call series with a probability of 97%, intermediate mating calls are absent, and there is a significant, but slight differentiation of external morphological characters. These results have strong taxonomic implications. We conclude that the lake frogs of Greece comprise two species. The mating call of the lake frogs from Thrace resembles in all parameters that of the Rana ridibunda in the terra typica restricta (Guryev, CIS). Accordingly, the lake frogs of eastern Greece belong to R. ridibunda. The mating call of these lake frogs consists of 20 pulses/pulse group and of 7 pulse groups/call on the average. Most of Greece is inhabited by the second taxon, Rana balcanica sp. n. Its mating call is characterized by 27 pulses/pulse group and 4 pulse groups/call on the average. The two species in Greece do not differ with respect to coloration and size, but several standardized indices vary significantly: body length/digitus primus length; body length/callus internus length; body length/snout-eye distance; body length/tympanum diameter; tibia length/callus internus length; maximal head width/snout-eye distance. 相似文献
12.
Joshua A. Deily Johannes Schul 《Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology》2009,195(1):31-37
The calls of many Orthopteran species are comprised of a simple trill of pulses, the temporal pattern of which is important
for call recognition. Male Neoconocephalus nebrascensis produce pulses with a temporal structure typical for the genus. However, they modify this pattern by grouping their pulses
into verses, thereby creating a higher order temporal structure. The importance of the pulse pattern and verse structure for
call recognition in N. nebrascensis was determined using a walking compensator. Females required the conspecific pulse pattern for call recognition, responding
only when the intervals between pulses were short or absent. Females also required the verse structure for call recognition,
and recognized the verse structure only when the amplitude modulation depth between verses and pauses exceeded 18 dB. We discuss
that the verse recognition mechanism is a derived trait adapted for pre-mating isolation. We hypothesize that the unusually
large amplitude modulation required for verse recognition forces males to synchronize their calls in order to preserve an
attractive pattern. Call synchrony appears to be the outcome of cooperation, rather than competition, in this species. 相似文献
13.
R. D. Kanamadi H. Schneider C. R. Hiremath C. S. Jirankali 《Journal of biosciences》1993,18(2):239-245
The period of calling activity ofPolypedates maculatus lies between April and October. Males possess an indistinct subgular vocal sac which turns yellow during the breeding season.
Mating calls type I, type II and distress calls have been identified. Mating calls type I and type II consist of a single
pulse group. Type I call comprises of 7–22 pulses, whereas type II call consists of 4–6 pulses. Pulses are short. The frequency
spectrum is broad and continuous. Distress calls, with 6 hormonics, are given by the females with their mouth open. 相似文献
14.
Javier S. Tellechea Carlos Martinez Michael L. Fine Walter Norbis 《Environmental Biology of Fishes》2010,89(2):163-172
The whitemouth croaker produces two different sounds using extrinsic sonic muscles: (1) male advertisement calls during the
spawning season and (2) disturbance calls, produced by both sexes. The advertisement call, related to courtship, was recorded
in the field and from two marked spawning males of 28 and 30.5 cm LT in the laboratory. It consists of individual pulses with average durations of 19.7 ms and 17.8 ms for the two males respectively,
interpulse intervals of 496 ms and 718 ms, and dominant frequencies of 280 Hz and 316 Hz. Pulses are emitted in bouts of one
to three min duration. Disturbance calls consist of a burst of pulses produced at short intervals, and the pulse duration,
interpulse interval and dominant frequency of the pulses average 19.8 ms, 17.1 ms, and 363 Hz, respectively. Dominant frequency
and interpulse interval decrease and pulse duration increases with fish size. Sound characteristics change markedly in young
of the year individuals (lower than 25 cm LT) after which they appear to stabilize. Higher dominant frequency in the advertisement than in the disturbance call and the
relationship of dominant frequency to pulse duration suggest that dominant frequency is determined as a forced response to
muscle contraction parameters rather than by the natural frequency of the swimbladder. 相似文献
15.
Amruta M. Joshi Edward J. Narayan Narahari Prabhakar Gramapurohit 《Ethology : formerly Zeitschrift fur Tierpsychologie》2019,125(11):774-784
In anurans, vocalisation is used to communicate within and between the sexes during reproduction. Knowledge of vocal repertoire and its diversity is essential in understanding its significance in sexual selection. In this context, we studied the vocal behaviour of Nyctibatrachus humayuni and quantified the urinary metabolites of androgens and corticosterone to understand the associations among hormones, body condition index and vocalisation. Our results show that males of N. humayuni produce an amplitude‐modulated call consisting of a train of pulses. Interestingly, a high degree of inter‐individual variation was observed in the call parameters. The dominant frequency and pulse interval were negatively correlated with male body size, whereas pulse duration and pulse duty cycle were positively correlated with it. Dominant frequency was negatively correlated with androgens and corticosterone, whereas pulse interval was negatively correlated with corticosterone. Further, pulse duty cycle, pulse duration and pulses per call were positively associated with corticosterone. Surprisingly, none of the acoustic parameters was associated with male body temperature and body condition. A significant variation was evident in the vocal effort, dominant frequency and amplitude of advertisement calls produced under different social situations. Calls produced during territory establishment had lower dominant frequency but higher vocal effort, whereas those produced during courtship had higher amplitude and vocal effort than the calls produced in the absence of a competitor/female. Our results suggest that greater inter‐male variability in the advertisement call of N. humayuni could be important in female choice as it may help females to assess the quality of a male. Further, androgens and corticosterone could be important in modulating crucial parameters of the advertisement call. 相似文献
16.
Developmental plasticity of mating calls enables acoustic communication in diverse environments 总被引:1,自引:0,他引:1
Male calls of the katydid Neoconocephalus triops exhibit substantial developmental plasticity in two parameters: (i) calls of winter males are continuous and lack the verse structure of summer calls and (ii) at equal temperatures, summer males produce calls with a substantially higher pulse rate than winter males. We raised female N. triops under conditions that reliably induced either summer or winter phenotype and tested their preferences for the call parameters that differ between summer and winter males.Neither generation was selective for the presence of verses, but females had strong preferences for pulse rates: only a narrow range of pulse rates was attractive. The attractive ranges did not differ between summer and winter females. Both male pulse rate and female preference for pulse rate changed with ambient temperature, but female preference changed more than the male calls.As a result, the summer call was attractive only at 25 degrees C, whereas the slower winter call was attractive only at 20 degrees C. Thus, developmental plasticity of male calls compensates for differences in temperature dependency between calls and preferences and enables the communication system to function in heterogeneous environments. The potential role of call plasticity during the invasion of new habitats is discussed. 相似文献
17.
Auditory feedback from the animal''s own voice is essential during bat echolocation: to optimize signal detection, bats continuously adjust various call parameters in response to changing echo signals. Auditory feedback seems also necessary for controlling many bat communication calls, although it remains unclear how auditory feedback control differs in echolocation and communication. We tackled this question by analyzing echolocation and communication in greater horseshoe bats, whose echolocation pulses are dominated by a constant frequency component that matches the frequency range they hear best. To maintain echoes within this “auditory fovea”, horseshoe bats constantly adjust their echolocation call frequency depending on the frequency of the returning echo signal. This Doppler-shift compensation (DSC) behavior represents one of the most precise forms of sensory-motor feedback known. We examined the variability of echolocation pulses emitted at rest (resting frequencies, RFs) and one type of communication signal which resembles an echolocation pulse but is much shorter (short constant frequency communication calls, SCFs) and produced only during social interactions. We found that while RFs varied from day to day, corroborating earlier studies in other constant frequency bats, SCF-frequencies remained unchanged. In addition, RFs overlapped for some bats whereas SCF-frequencies were always distinctly different. This indicates that auditory feedback during echolocation changed with varying RFs but remained constant or may have been absent during emission of SCF calls for communication. This fundamentally different feedback mechanism for echolocation and communication may have enabled these bats to use SCF calls for individual recognition whereas they adjusted RF calls to accommodate the daily shifts of their auditory fovea. 相似文献
18.
Male Pacific treefrogs, Hyla regilla, use advertisement and encounter calls in their reproductive communication. Encounter calls are produced when a male hears either advertisement or encounter calls at amplitudes that exceed his aggressive threshold for that call type, and they are believed to play a role in male spacing in a chorus. Aggressive thresholds of males for advertisement and encounter calls are plastic; males resume advertisement calling (i.e. accommodate) after repeated exposure to either advertisement or encounter calls that exceed their aggressive thresholds for that call type. Presentation of one call type does not elevate a male's aggressive threshold for the other call type, indicating that discrete neural ‘channels’ exist for processing advertisement versus encounter calls. Because these calls are spectrally highly similar, it is likely that they are differentiated in the central auditory system on the basis of their different temporal structure; pulses are repeated in advertisement and encounter calls at rates of approximately 100 pulses/s and 30 pulses/s, respectively. The present study tested whether consecutive advertisement-type interpulse intervals (IPIs) are required to activate the filter for advertisement calls. Males were accommodated to synthetic stimuli that differed in the proportion of advertisement versus encounter IPIs. Aggressive thresholds of males for the encounter call and advertisement call (monophasic type) were elevated 450% and 58%, respectively, following accommodation to a stimulus that had nine of each IPI type, arranged in an alternating sequence. Aggressive thresholds for the monophasic advertisement call were elevated 151%, however, when males were accommodated with stimuli that had two sets of eight to nine consecutive advertisement IPIs; consistent with previous work, aggressive thresholds for the encounter call were not significantly elevated. Aggressive thresholds for the advertisement call are typically elevated approximately four-fold following accommodation with that call type. These findings are consistent, therefore, with the hypothesis that several consecutive advertisement IPIs are required to activate the ‘advertisement channel’; if consecutive advertisement IPIs were not required, the stimulus that consisted of the same number of advertisement and encounter IPIs should have induced comparable elevations of the aggressive thresholds of males for advertisement and encounter calls. Selective filters for the advertisement call, therefore, appear to integrate information across many consecutive ‘correct’ IPIs. This integration process may contribute to a female's call preference.Copyright 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved . 相似文献
19.
Passive acoustic monitoring,development of disturbance calls and differentiation of disturbance and advertisement calls in the Argentine croaker Umbrina canosai (Sciaenidae)
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Disturbance and advertisement calls of the Argentine croaker Umbrina canosai were recorded from coastal Uruguayan waters. Dissections indicate typical sciaenid extrinsic swimbladder muscles present exclusively in males. Disturbance calls were produced when captive U. canosai were startled, chased with a net or grabbed by the tail. Calls were unusual for sciaenids because each pulse consisted of multiple cycles. The number of cycles per pulse and dominant frequency did not change with U. canosai size, but pulse duration and interpulse interval increased. Advertisement calls were recorded from unseen choruses in the field and confirmed with captive individuals in a large tank. Advertisement calls were recorded throughout the known range of the species in Uruguay indicating a continuous belt of spawning populations. Tank recordings of the same individuals permitted explicit comparisons between the two calls. Advertisement call pulses averaged 2·4 more cycles (11·0–8·6) although pulses of both calls were basically similar as were durations and dominant frequencies. Pulse number, however, differed markedly, averaging 13·6 and 3·4 pulses for disturbance and advertisement calls respectively. Furthermore, disturbance calls were produced as a rapid series with an interpulse interval of 26–31 ms whereas advertisement call patterns were less stereotyped and ranged from <100 to 450 ms. Multicycle pulses distinguished U. canosai from other sympatric sciaenids. 相似文献
20.
T.Ulmar Grafe 《Animal behaviour》2003,66(1):127-136
Male Kuvangu frogs show repetitive calling of pulsed advertisement calls in which up to seven calls are repeated in short succession. Recordings of pairwise interactions between males showed that calls were highly synchronized, with individual calls interdigitating with each other. Males frequently switched between the leader and follower role with neither male dominating the interaction. Interactive playback experiments using synthetic calls revealed that males slightly but significantly increased the number of calls per call group with increases in stimulus call number. Males also significantly increased call rate with the number of calls in the playback stimulus. Furthermore, when presented with shortened intercall intervals, males increased their own intercall intervals, thus ‘skipping’ a call and avoiding overlap with the playback. The low degree of call matching suggests that repetitive calling, apart from maintaining a male's attractiveness to females relative to rival males, may mediate male-male competition. In addition, synchronized interdigitated calling may serve to reduce predation, while maintaining species-specific temporal features of advertisement calls important to females. Kuvangu running frogs may have reduced the costs associated with synchrony and alternation by using a signal timing scheme that allows them to do both simultaneously.Copyright 2003 Published by Elsevier Science Ltd on behalf of The Association for the Study of Animal Behaviour. 相似文献