scholarly journals Long-term trends in abundance and breeding success of red grouse and hen harriers in relation to changing management of a Scottish grouse moor

2017 ◽  
Vol 2017 (SP1) ◽  
Author(s):  
Sonja C. Ludwig ◽  
Staffan Roos ◽  
Damian Bubb ◽  
Dave Baines
Keyword(s):  
Breeding Success ◽  
Red Grouse ◽  
Long Term Trends

Inter-annual variability and long-term trends in breeding success in a declining population of migratory swans

2016 ◽  
Vol 47 (5) ◽  
pp. 597-609 ◽  
Author(s):  
Kevin A. Wood ◽  
Julia L. Newth ◽  
Geoff M. Hilton ◽  
Bart A. Nolet ◽  
Eileen C. Rees
Keyword(s):  
Breeding Success ◽  
Annual Variability ◽  
Long Term Trends

Relationship between arrival date, hatching date and breeding success of the white stork (Ciconia ciconia) in Slovakia

Biologia ◽  
2009 ◽  
Vol 64 (2) ◽  
Author(s):  
Miroslav Fulin ◽  
Leszek Jerzak ◽  
Tim Sparks ◽  
Piotr Tryjanowski
Keyword(s):  
Breeding Success ◽  
White Stork ◽  
Hatching Date ◽  
Ciconia Ciconia ◽  
Arrival Dates ◽  
Spring Arrival ◽  
First Arrival ◽  
Long Term Trends ◽  
Migrant Birds

AbstractChanges in the spring arrival dates of migrant birds have been reported from a range of locations and many authors have focused on long-term trends and their relationship to temperature and other climatic events. Perhaps more importantly, changed arrival dates may have consequences for the breeding dates of birds which strongly influence breeding success. In this paper we take the opportunity provided by a monitoring scheme of the white stork (Ciconia ciconia) to examine several features of the timing of arrival and breeding in relation to chick production in Slovakia during the period 1978–2002. First arrival dates ranged from 5th March to 30th April, and hatching dates varied between 26th April and 8th July. Generally, early arriving pairs started breeding earlier and a shorter interval between the arrival of the first partner and breeding, expressed here as hatching date, resulted in higher breeding success.

Long-term trends in albatross diets in relation to prey availability and breeding success

2020 ◽  
Vol 167 (3) ◽  
Author(s):  
William F. Mills ◽  
José C. Xavier ◽  
Stuart Bearhop ◽  
Yves Cherel ◽  
Stephen C. Votier ◽  
...  
Keyword(s):  
Breeding Success ◽  
Prey Availability ◽  
Long Term Trends

Long-term trends in the population size and breeding success of emperor penguins at the Taylor Glacier colony, Antarctica

Polar Biology ◽  
2013 ◽  
Vol 37 (2) ◽  
pp. 251-259 ◽  
Author(s):  
Graham Robertson ◽  
Barbara Wienecke ◽  
Louise Emmerson ◽  
Alexander D. Fraser
Keyword(s):  
Population Size ◽  
Breeding Success ◽  
Emperor Penguins ◽  
Long Term Trends ◽  
Taylor Glacier

scholarly journals Spatial synchrony of breeding success in the blacklegged kittiwake Rissa tridactyla reflects the spatial dynamics of its sandeel prey

2020 ◽  
Vol 638 ◽  
pp. 177-190
Author(s):  
AB Olin ◽  
NS Banas ◽  
PJ Wright ◽  
MR Heath ◽  
RG Nager
Keyword(s):  
Spatial Patterns ◽  
Breeding Success ◽  
Spatial Dynamics ◽  
Weather Conditions ◽  
Rissa Tridactyla ◽  
Demographic Rates ◽  
Long Term Trends ◽  
Underlying Mechanisms ◽  
The Uk

Synchrony in demographic rates between spatially disjunct populations is a widespread phenomenon, although the underlying mechanisms are often not known. This synchrony and its spatial patterns can have important consequences for the long-term persistence of metapopulations and can also be used to infer drivers of population dynamics. Here, we examined spatial patterns of synchrony in the breeding success of black-legged kittiwakes Rissa tridactyla in the UK, using an extensive dataset on kittiwake breeding success and 2 different ways of measuring synchrony: one reflecting synchrony in inter-annual fluctuations only (rdiff) and one reflecting synchrony in both inter-annual fluctuations and long-term trends (r). We found that between-colony synchrony in breeding success decreased with distance up to just over 200 km but that some colony pairs showed stronger or weaker synchrony than expected based on distance. This was also reflected in the configuration of spatially coherent clusters of kittiwake colonies with synchronous breeding success. Further, we compared the support for different drivers of these spatial patterns, including trophic interactions and weather conditions. We found that the spatial dynamics of the kittiwakes’ main prey in this region, the lesser sandeel Ammodytes marinus, appeared to play some role in generating synchrony in long-term patterns, but their role in generating synchrony in inter-annual fluctuations was less clear. The study shows that examining spatial patterns in synchrony can provide useful information for inferring potential drivers and the spatial scale over which they are acting.

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