Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"territory defence"”.
-
Extraterritorial prospecting and territory defence in cooperatively breeding meerkats
… prospectors and measured the costs of such territory defence. In this dissertation, I exploit our ability to closely monitor prospecting males in meerkats, to investigate the causes of individual variation in extraterritorial prospecting effort and aggressive responses to prospector …
-
Individual contributions to group behaviour in the cooperatively breeding southern ground-hornbill Bucorvus leadbeateri
… less often considered; for example, collective territory defence is common in cooperative breeders and ensures exclusive access to crucial resources such as food, nesting sites, and mates. A better understanding of the diverse factors favouring cooperative behaviour can offer insights as to why, …
-
The ecstatic display call of the Adélie penguin (Pygoscelis adeliae)
… (EDC). The EDC is used for both mate choice and territory defence; but apart from general structure and function this call remains basically unstudied. Therefore, the aim of this study is to examine the EDC with regard to its function (during mate choice) and variability over time, with location …
-
Effects of urban noise on vocalisations of tūī (Prosthemadera novaeseelandiae) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Conservation Biology at Massey University, Auckland, New Zealand
… functions of avian acoustic communication are territory defence and mate attraction. As such the effective communication of these signals is critical for individual reproductive success. However if these vocal signals are masked by anthropogenic noise, their signal efficiency is reduced and …
-
Herbivorous fishes as determinants of the structure of coral reef communities: farmers, foragers and their interactions
… inside territories. I compared the diets, territory composition and space occupation of ten farmer species across three geographic locations representing different reef types. Overall, farmer territories occupied between 11% and 60% of reef substrata, and between 52% and 100% of reef crest …