A comparison of sound propagation and song frequency in temperate marsh and grassland habitats

@article{Cosens2004ACO,
  title={A comparison of sound propagation and song frequency in temperate marsh and grassland habitats},
  author={Susan E. Cosens and J. Bruce Falls},
  journal={Behavioral Ecology and Sociobiology},
  year={2004},
  volume={15},
  pages={161-170}
}
SummaryAttenuation of pure tones was measured in marsh and grassland habitat. At surface level, in grassland, the ground effect strongly attenuated frequencies below 2.0 kHz (Fig. 2). The ground effect was reduced by increasing source-receiver elevation. In marsh habitat the ground effect did not occur, and low frequencies were optimal for sound propagation (Fig. 3). As predicted from sound propagation tests, analysis of recorded songs of seven grassland and six marsh species indicated that… 

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References

SHOWING 1-10 OF 27 REFERENCES
Ecological Sources of Selection on Avian Sounds
This study describes selection derived from habitat acoustics on the physical structure of avian sounds. Sound propagation tests were made in forest, edge, and grassland habitats in Panama to
Sound transmission and its significance for animal vocalization
TLDR
Two facts mitigating against Morton's sound “window” as an explanation for lower frequencies in songs of forest as opposed to open country birds are presence of similar “windows” in both habitats and restriction of windows to a zone close to the ground in most habitats.
Geographical Variation in the Song of the Great Tit (Parus major) in Relation to Ecological Factors
TLDR
It is concluded that differences between habitats in climate, body size, perch height, and acoustic competition from other species are unimiportant in accounting for the observed differences in song.
NOISE REDUCTION BY VEGETATION AND GROUND
Transmission of random noise through dense corn, a dense hemlock plantation, an open pine stand, dense hardwood brush, and over cultivated soil was measured. The relation between attenuation and
Pattern and Process in Grassland Bird Communities
TLDR
It is suggested that birds may act as controllers of other elements of system function or may not be closely evolved into the functional framework of the ecosystem at all, existing on "excesses" in production.
Adaptive morphology of song dialects in Darwin's finches
TLDR
This study describes the structure and functional significance of numerous song dialects in island populations of Darwin's finches from the Galápagos Archipelago and proposes a scheme that relates modal amplitude distributions and sound pressure levels of song to body size and relative abundance of species.
Some adaptations of marsh-nesting blackbirds.
  • G. Orians
  • Biology, Medicine
    Monographs in population biology
  • 1980
TLDR
The author uses models derived from Darwin's theory of natural selection to predict the behavior and morphology of individuals as well as the statistical properties of their populations, and tests models that predict habitat selection, foraging behavior, territoriality, and mate selection.
Interterritorial Habitat Variation in Grasshopper and Savannah Sparrows
TLDR
Although these species occupied similar habitat situations after breeding populations stabilized in mid—June, they initially established territories in quite different portions of the habitat spectrum, with considerable inter—territorial variation in habitat features in both species.
Breeding Ecology of the Yellow-Headed Blackbird
TLDR
This study highlights the importance of knowing the carrier and removal status of canine coronavirus, as a source of infection for other animals, not necessarily representing the same species.
Avian vocalizations and the sound interference model of Roberts et al.
The selective advantage or disadvantage of the mutant may be defined to be L -1 (since at ~ = 1, the gene is neutral). Note that at c~ = 1 (no penalty to leaving home), L1 = 0.75, %9 = 1. There is a
...
1
2
3
...