Ecological segregation and vocal interactions in two sympatric Laterallus crakes

2016 ◽  
Vol 158 (2) ◽  
pp. 431-441 ◽  
Author(s):  
Emiliano A. Depino ◽  
Juan I. Areta
Keyword(s):  
Ecological Segregation ◽  
Vocal Interactions

Long-Range Vocal Interactions Between Groups of Gibbons (Hylobates Lar)

Behaviour ◽  
1985 ◽  
Vol 95 (1-2) ◽  
pp. 26-44 ◽  
Author(s):  
Jeremy J. Raemaekers ◽  
Patricia M. Raemaekers
Keyword(s):  
Statistical Analysis ◽  
Long Range ◽  
Distinctive Pattern ◽  
Hylobates Lar ◽  
Leaders And Followers ◽  
Vocal Interactions

AbstractWe report on long-range duet interactions among twelve wild groups of lar gibbons (Hylobates lar) in Thailand. Statistical analysis demonstrates that groups were more likely to respond with an answering duet to a duet sung by a neighbouring group than to one sung by a non-neighbouring group in the population. A distinctive pattern of response among neighbours was to wait until a neighbouring group had finished its duet before immediately answering with a duet, resulting in avoidance of overlap between the two duets. Non-neighbours did not exhibit this pattern. The effect is shown to be due solely to neighbour status and not to the degree of mutual audibility of the duets. There was no evidence that, when duets overlapped, the first group to sing modified the length of its duet in response to the second duet, whether given by a neighbour or by a non-neighbour. In general, among those groups which responded to one another's duets, there were no identifiable leaders and followers: the order of duetting groups was random. We discuss why neighbours interact more by duet than do non-neighbours, and consider what may be the functions of avoiding overlap of duets.

scholarly journals Do marmosets understand others’ conversations? A thermography approach

2021 ◽  
Vol 7 (6) ◽  
pp. eabc8790 ◽  
Author(s):  
R. K. Brügger ◽  
E. P. Willems ◽  
J. M. Burkart
Keyword(s):  
Third Party ◽  
Behavioral Reactions ◽  
Behavioral Preference ◽  
The Mind ◽  
Physiological Reactions ◽  
Marmoset Monkeys ◽  
Vocal Interactions

What information animals derive from eavesdropping on interactions between conspecifics, and whether they assign value to it, is difficult to assess because overt behavioral reactions are often lacking. An inside perspective of how observers perceive and process such interactions is thus paramount. Here, we investigate what happens in the mind of marmoset monkeys when they hear playbacks of positive or negative third-party vocal interactions, by combining thermography to assess physiological reactions and behavioral preference measures. The physiological reactions show that playbacks were perceived and processed holistically as interactions rather than as the sum of the separate elements. Subsequently, the animals preferred those individuals who had been simulated to engage in positive, cooperative vocal interactions during the playbacks. By using thermography to disentangle the mechanics of marmoset sociality, we thus find that marmosets eavesdrop on and socially evaluate vocal exchanges and use this information to distinguish between cooperative and noncooperative conspecifics.

Morphological variation and ecological distribution of co-occurring larval forms of Oreolalax (Anura: Pelobatidae)

1994 ◽  
Vol 15 (2) ◽  
pp. 109-121 ◽  
Author(s):  
H. Bradley Shaffer ◽  
Robert F. Inger ◽  
Guan-Fu Wu ◽  
Er-Mi Zhao
Keyword(s):  
Multivariate Analysis ◽  
Morphological Variation ◽  
Sichuan Province ◽  
Ecological Distribution ◽  
Additional Species ◽  
Maximum Width ◽  
Ecological Segregation ◽  
Number Of Species ◽  
Stream Size

AbstractThe amphibian fauna of Sichuan Province, China, is remarkable for the large number of species of pelobatid frogs, of which species of Oreolalax form a large portion. We have collected larvae of five species of Oreolalax on Mt. Emei, Sichuan, four of these five at a second locality 40 km from Mt. Emei, and larvae of two additional species at a locality 200 km S of Mt. Emei. These tadpoles are very similar to one another morphologically, a conclusion supported by multivariate analysis. We give diagnostic descriptions and a key for the identification of these seven larval forms. All tadpoles of Oreolalax have lotic habits, and the seven species in our study live in small to medium-sized streams (maximum width 8 m). These species show only moderate ecological segregation in terms of stream size and microhabitat type.

scholarly journals Initial observation of human-bird vocal interactions in a zoological setting

2019 ◽  
Author(s):  
Rébecca Kleinberger ◽  
Janet Baker ◽  
Gabriel Miller
Keyword(s):  
Artificial Intelligence ◽  
Managed Care ◽  
San Diego ◽  
Large Datasets ◽  
Initial Observation ◽  
Bird Behavior ◽  
Vocal Interactions

Vocal interactions between humans and non-human animals are pervasive, but studies are often limited to communication within species. Here, we conducted a pilot exploration of vocal interactions between visitors to the San Diego Zoo Safari Park and Sampson, an 18-year-old male Hyacinth Macaw residing near the entrance. Over the course of one hour, 82 vocal and behavioral events were recorded, and various relationships between human and bird behavior were noted. Analyses of this type, applied to large datasets with assistance from artificial intelligence, could be used to better understand the impacts, positive or negative, of human visitors on animals in managed care.

The Measurement of Ecological Segregation

1947 ◽  
Vol 12 (3) ◽  
pp. 293 ◽  
Author(s):  
Julius Jahn ◽  
Calvin F. Schmid ◽  
Clarence Schrag
Keyword(s):  
Ecological Segregation
Sign in / Sign up

Export Citation Format

Share Document