The Roseate Tern: Notes on the Nesting Behaviour

1951 ◽  
Vol 50 (3) ◽  
pp. 145-151 ◽  
Author(s):  
V. N. Serventy ◽  
S. R. White
Keyword(s):  
Nesting Behaviour ◽  
Roseate Tern

Roseate Tern Breeds during Its Third Year

Bird-Banding ◽  
1971 ◽  
Vol 42 (1) ◽  
pp. 50
Author(s):  
Richard A. Harlow, Jr.
Keyword(s):  
Roseate Tern

scholarly journals Evolution of iris colour in relation to cavity nesting and parental care in passerine birds

2017 ◽  
Vol 13 (1) ◽  
pp. 20160783 ◽  
Author(s):  
Gabrielle L. Davidson ◽  
Alex Thornton ◽  
Nicola S. Clayton
Keyword(s):  
Parental Care ◽  
Eye Gaze ◽  
Dependent Manner ◽  
Passerine Birds ◽  
Cavity Nesters ◽  
Cavity Nesting ◽  
Ideal System ◽  
Nesting Behaviour ◽  
Gaze Sensitivity ◽  
Iris Colour

Strong selection pressures are known to act on animal coloration. Although many animals vary in eye colour, virtually no research has investigated the functional significance of these colour traits. Passeriformes have a range of iris colours, making them an ideal system to investigate how and why iris colour has evolved. Using phylogenetic comparative methods, we tested the hypothesis that conspicuous iris colour in passerine birds evolved in response to (a) coordination of offspring care and (b) cavity nesting, two traits thought to be involved in intra-specific gaze sensitivity. We found that iris colour and cooperative offspring care by two or more individuals evolved independently, suggesting that bright eyes are not important for coordinating parental care through eye gaze. Furthermore, we found that evolution between iris colour and nesting behaviour did occur in a dependent manner, but contrary to predictions, transitions to coloured eyes were not more frequent in cavity nesters than non-cavity nesters. Instead, our results indicate that selection away from having bright eyes was much stronger in non-cavity nesters than cavity nesters, perhaps because conspicuous eye coloration in species not concealed within a cavity would be more visible to predators.

scholarly journals Nesting behaviour and larval biology of Sphex opacus Dahlbom (Hymenoptera, Sphecidae) from Brazil

2005 ◽  
Vol 22 (3) ◽  
pp. 709-711
Author(s):  
Sandor C. Buys
Keyword(s):  
Southeastern Brazil ◽  
Coastal Habitat ◽  
Larval Biology ◽  
Larval Behaviour ◽  
Nesting Behaviour ◽  
First Time

Aspects of the nesting behaviour of Sphex opacus Dahlbom, 1845 are presented for the first time, based on observations carried out in a coastal habitat from southeastern Brazil. Larval behaviour and development were studied in laboratorial conditions.

scholarly journals Nesting Behaviour of a Neotropical Social Wasp Mischocyttarus saussurei Zikán, 1949 (Hymenoptera, Vespidae)

Sociobiology ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 121 ◽  
Author(s):  
Lucas Rocha Milani ◽  
Fabio Prezoto ◽  
Mateus Aparecido Clemente ◽  
Patrícia Pereira Gomes ◽  
Marcos Magalhães de Souza
Keyword(s):  
Morphometric Analysis ◽  
Social Wasp ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Morphometric Data ◽  
Ecological Data ◽  
Architectural Pattern ◽  
Minas Gerais State ◽  
Nesting Behaviour

Mischocyttarus saussurei nests show a curious architectural pattern which could be related to colony camouflage. Since information on that species is scarce in literature, this study aimed to record ecological data on M. saussurei, as well as morphometric data on its nests. Data was collected at the Parque Estadual do Ibitipoca state park and at the municipalities of Barroso and Inconfidentes, Minas Gerais state, Southeastern Brazil. Seven colonies were located, exclusively in conserved environments. Five nests were dissected for morphometric analysis and for the assessment of the vegetal matter incorporated to comb walls. Nests showed comb cells opening towards the substrate and covered by vegetal layers, in which three families of mosses and three of liverworts could be identified. We deduct that the nests’ morphometry and the incorporation of vegetal layers to the combs are related to the camouflaging of colonies amidst their substrate.

scholarly journals Behaviour of pre-parturient sows housed in intensive outdoor or indoor systems

2005 ◽  
Vol 40 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Maria José Hötzel ◽  
Luiz Carlos Pinheiro Machado Filho ◽  
Osmar Antônio Dalla Costa
Keyword(s):  
Nesting Behaviour ◽  
Husbandry System

This work compared the behaviour of pre-parturient sows housed in intensive confined and outdoor systems, during the morning and afternoon prior to delivery. Eight sows were kept individually in farrowing crates or in paddocks with access to fresh pasture from 8 to 10 days before expected parturition. All outdoor sows built a nest within 24 hours before farrowing. On the morning and afternoon before farrowing they spent 6.5% of the time collecting grass and 7.5% of the time organizing the nest. Outdoor sows were observed more often than confined sows rooting (4.60% vs. 0.25%), feeding (10.2% vs. 3.0%), standing (51% vs. 13%) and walking (8% vs. 0%). Indoor sows redirected the nesting behaviour to other behaviours like attempts to dig the ground, nosing, biting and rooting parts of the crate, feeder or drinker, during 4.7% of the time. They also spent more time than outdoor sows inactive (85% vs. 60%), lying (72% vs. 41%), drinking (2.1% vs. 0.5%) and vacuum chewing (3.7% vs. 0.1%). The pre-parturient behaviour of sows was considerably affected by the husbandry system. The outdoor system appears to be more appropriate for the sows' welfare than the conventional confinement.

scholarly journals Influence of local and large-scale weather events and timing of breeding on tropical roseate tern reproductive parameters

2002 ◽  
Vol 243 ◽  
pp. 271-279 ◽  
Author(s):  
JA Ramos ◽  
AM Maul ◽  
V Ayrton ◽  
I Bullock ◽  
J Hunter ◽  
...  
Keyword(s):  
Large Scale ◽  
Timing Of Breeding ◽  
Reproductive Parameters ◽  
Weather Events ◽  
Roseate Tern

Impact assessment of tail-vein injection in mice using a modified anaesthesia induction chamber versus a common restrainer without anaesthesia

2018 ◽  
Vol 53 (2) ◽  
pp. 190-201 ◽  
Author(s):  
Marlene Resch ◽  
Tania Neels ◽  
Alexander Tichy ◽  
Rupert Palme ◽  
Thomas Rülicke
Keyword(s):  
Body Weight ◽  
The Body ◽  
Anaesthesia Induction ◽  
Temporary Reduction ◽  
Isoflurane Anaesthesia ◽  
Tail Vein ◽  
Tail Vein Injection ◽  
Nesting Behaviour ◽  
The Common ◽  
Corticosterone Metabolites

Intravenous (IV) administration in mice is predominantly performed via the lateral tail veins. The technique requires adequate training before it can be used safely and routinely. A novel anaesthesia induction chamber has been developed to simplify the treatment and to facilitate IV injection in mice, particularly for untrained personnel. We have assessed the benefits of the chamber in refining IV injection in isoflurane-anaesthetized mice in direct comparison with the common restrainer method on conscious animals. The body weight, nesting behaviour and concentrations of faecal corticosterone metabolites were taken as indicative of distress induced by the various procedures. The results suggest that both methods of tail-vein injection induce similar levels of momentary stress in the animals, revealed by a short-term increase in the levels of stress hormone metabolites in faeces. A temporary reduction of body weight was observed after IV injection under isoflurane anaesthesia but not for conscious mice injected in the common restrainer. We conclude that the severity of tail-vein injection in mice is ‘mild’ for both methods. There was no evidence that refining the procedure by using isoflurane anaesthesia in the induction chamber was associated with any benefit.

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