Phenology and breeding ecology of Common Terns (Sterna hirundo) in Bermuda: An ecologically distinctive island population, now critically endangered

2021 ◽  
Vol 132 (2) ◽  
Author(s):  
David B. Wingate ◽  
Ian C. T. Nisbet ◽  
Miguel A. Mejías ◽  
Mandy Shailer
The Auk ◽  
1984 ◽  
Vol 101 (2) ◽  
pp. 274-280 ◽  
Author(s):  
Helen Hays

Abstract In this paper I report the first instance of a pair of Common Terns (Sterna hirundo) raising young in successive clutches during one breeding season and discuss this phenomenon in relation to male and female incubation and feeding rates and to predation. Five other pairs are noted in which the female and sometimes the male incubated a second clutch while still feeding one young from their first nest.


The Condor ◽  
2001 ◽  
Vol 103 (1) ◽  
pp. 108-117
Author(s):  
James A. Robinson ◽  
Keith C. Hamer ◽  
Lorraine S. Chivers

Abstract Arctic Terns (Sterna paradisaea) and Common Terns (S. hirundo) are similar in many aspects of their breeding ecology, but Common Terns generally lay three eggs per clutch whereas Arctic Terns lay two. In our study, Common Terns had a higher rate of food delivery and energy supply to the nest and higher nest attendance, indicating that they made trips of shorter average duration. This suggests that the number of chicks raised by these two species was primarily limited by the rate at which parents could supply food. However, estimated daily metabolizable energy intake of chicks was about 30% higher in Common Terns than in Arctic Terns. Common Tern chicks apparently spent a higher proportion of daily energy intake on maintenance of body temperature. It remains unknown whether this difference was because Common Tern parents could not brood three chicks as effectively as Arctic Terns brooded two or because the energy requirements for heat production in the third-hatched Common Tern chick were particularly high. If brooding did play a less important role in the energy budgets of Common Terns, the number of chicks that Arctic Terns could raise may have been limited not only by the rate at which parents could supply food to the nest but also by the requirements of chicks for brooding. We suggest that more detailed studies on the role of brooding constraints in limiting brood size in these species are required to clarify this matter.


2013 ◽  
Vol 26 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Paula L. Wang ◽  
Frankie D. Jackson ◽  
David J. Varricchio

2018 ◽  
Vol 88 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Francesca Coccon ◽  
Stefano Borella ◽  
Nicola Simeoni ◽  
Stefano Malavasi

The Venice lagoon hosts the 15% of the entire Italian breeding population of Common terns, Sterna hirundo, highlighting the great value of the area for this species. However, in the last 25 years, a substantial decline of Common terns has been detected in the Lagoon, which culminated in 2008. The main causes of this negative trend were the loss of salt marsh habitats, where terns typically breed in the Venice lagoon. This was due to the increase in the mean sea level and the greater frequency of high tides during the reproductive period with consequent flooding of their breeding sites; competition with yellowlegged gulls (Larus michahellis), predation and human disturbance. As a preliminary experimental approach to counter the depletion of the species and favour its recovery, we performed a habitat loss compensation project by setting up four floating rafts (3x2m), covered by two different types of substrate (sandy and vegetal substrate). This was to function as an artificial nesting site safe from flooding, positioned in a protected internal wetland area of the Venice lagoon, Valle Averto (Sourthern Lagoon). We studied the colonization patterns of the rafts and the reproductive success of Common tern breeding pairs during the 2014 and 2015 breeding seasons. We also investigated those environmental and structural variables that could favour the use of the rafts and the nesting success of the species. In both years, the rafts were successfully colonized and used by terns for nesting. Our results also indicated higher temperature, lower rainfall and greater distance from the shore as the main habitat factors favouring the occurrence and the reproductive success of the breeding pairs, while a windrow of dead plants was indicated as the preferred substrate for covering rafts in order to make them more attractive. The results provided some suggestions for successful restoration plans to be developed in similar lagoon areas.


1998 ◽  
Vol 46 (1-5) ◽  
pp. 174-175 ◽  
Author(s):  
C.A. Hart ◽  
M.E. Hahn ◽  
I.C.T. Nisbet ◽  
M.J. Moore ◽  
S.W. Kennedy ◽  
...  

1993 ◽  
Vol 79 (3) ◽  
pp. 207-213 ◽  
Author(s):  
Peter H. Becker ◽  
Sabine Schuhmann ◽  
Christa Koepff

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