Breeding Dispersal in Indigo Buntings: Circumstances and Consequences for Breeding Success and Population Structure

The Condor ◽  
1993 ◽  
Vol 95 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Robert B. Payne ◽  
Laura L. Payne
Keyword(s):  
Population Structure ◽  
Breeding Success ◽  
Breeding Dispersal

scholarly journals Prior Breeding Success Affects Return Rates of Territorial Male Ovenbirds

The Condor ◽  
2003 ◽  
Vol 105 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Paul A. Porneluzi
Keyword(s):  
Reproductive Success ◽  
Breeding Success ◽  
Territorial Male ◽  
Breeding Dispersal ◽  
Seiurus Aurocapillus ◽  
Return Rates ◽  
Breeding Experience ◽  
A Site

AbstractI examined the hypothesis that male Ovenbirds (Seiurus aurocapillus) make breeding dispersal decisions based on prior breeding experience at a site. I determined the reproductive success of color-banded male Ovenbirds at sites in fragmented and unfragmented landscapes in Missouri from 1992–1995. I documented which individuals returned and I recorded their reproductive success upon return as well as the success of birds new to each plot. I obtained similar results in both landscapes. Males with different histories of reproductive success returned at different rates. Only 2 of 22 males that were paired but failed to raise young returned in the following year, whereas the return rates of unpaired males (41%, n = 37) and males that successfully raised young (54%, n = 57) did not differ significantly (P = 0.19). The patterns were more consistent with the hypothesis that return rates were due to decisions about dispersal rather than difference in survival of individuals in these groups.El Éxito Reproductivo Previo Afecta Índices de Regreso de Machos Territoriales de Seiurus aurocapillusResumen. Examiné la hipótesis de que individuos de Seiurus aurocapillus hacen decisiones de dispersión reproductiva basadas en las experiencias reproductivas previas en un sitio. Determiné el éxito reproductivo de machos con anillos de color en lugares en terrenos fragmentados y no fragmentados de Missouri entre 1992 y 1995. Documenté cuáles individuos regresaron y su éxito reproductivo al regresar, y también el éxito de pájaros nuevos en cada sitio. Obtuve resultados semejantes en ambos paisajes. Los machos con historias de éxito reproductivo diferentes presentaron índices de regreso diferentes. Solamente 2 de 22 machos apareados que no produjeron cría volvieron al año siguiente, mientras que los índices de regreso de machos no apareados (41%, n = 37) y de los machos que produjeron crías exitosamente (54%, n = 57) no difirieron significativamente (P = 0.19). Los patrones concuerdan más con la hipótesis de que los índices de regreso se deberieron a las decisiones de dispersión y no a la diferencia de supervivencia de individuos en estos grupos.

The effects of sex, age and breeding success on breeding dispersal of pied flycatchers along a pollution gradient

Oecologia ◽  
2008 ◽  
Vol 157 (2) ◽  
pp. 231-238 ◽  
Author(s):  
Tapio Eeva ◽  
Markus Ahola ◽  
Toni Laaksonen ◽  
Esa Lehikoinen
Keyword(s):  
Breeding Success ◽  
Breeding Dispersal ◽  
Pollution Gradient

scholarly journals Environmentally mediated reproductive success predicts breeding dispersal decisions in an early successional amphibian

2018 ◽  
Author(s):  
Laurent Boualit ◽  
Julian Pichenot ◽  
Aurélien Besnard ◽  
Rémi Helder ◽  
Pierre Joly ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Environmental Conditions ◽  
Breeding Success ◽  
Patch Size ◽  
Negative Influence ◽  
Ecological Succession ◽  
Structured Populations ◽  
Breeding Dispersal ◽  
Capture Recapture ◽  
Context Dependent

AbstractDispersal is a central mechanism in ecology and evolution. Dispersal evolution is driven by a trade-off between costs and benefits, which is influenced by inter-individual variability and local environmental conditions (context-dependent dispersal). Many studies have investigated how dispersal decisions may be influenced by environmental factors, including density, predation, and interspecific competition. Yet few have attempted to examine how habitat disturbance may affect the dispersal process in spatially structured populations. In early successional species, one might expect individuals to adjust their dispersal decisions based on two main factors that potentially have an influence on reproductive success: patch size and the level of patch disturbance. In this study, we examined how these two factors affect breeding success and dispersal decisions in an early successional amphibian, the yellow-bellied toad (Bombina variegata). To this end, we used capture–recapture data collected on a spatially structured population occupying 28 breeding patches. We took advantage of recent developments in multievent capture–recapture models to detect signs of context-dependent dispersal. The results revealed that the probability of successful reproduction and the number of newly metamorphosed individuals increased with both the size and the proportion of disturbance of a patch. In addition, our results showed that the factors affecting breeding success also influenced breeding dispersal probability. Large patch size negatively influenced emigration probability; in contrast, it positively influenced immigration probability. Equally, higher disturbance (in terms of the proportion of the patch’s surface area disturbed each year) had a strong negative influence on emigration probability and slightly positively affected immigration probability. These findings strongly suggest that individuals make context-dependent dispersal decisions, adjusted to maximize future fitness prospects in a patch, allowing them to better cope with rapid changes in environmental conditions resulting from the ecological succession process. This opens new areas of potential research into the role of dispersal in organism specialization along an ecological succession gradient.

scholarly journals Effects of breeding success, mate fidelity and senescence on breeding dispersal of male and female blue-footed boobies

2007 ◽  
Vol 76 (3) ◽  
pp. 471-479 ◽  
Author(s):  
SIN-YEON KIM ◽  
ROXANA TORRES ◽  
CRISTINA RODRÍGUEZ ◽  
HUGH DRUMMOND
Keyword(s):  
Breeding Success ◽  
Breeding Dispersal ◽  
Male And Female ◽  
Mate Fidelity

The Breeding Cycle and Growth of Hydrobia Ulvae in the Dovey Estuary

1974 ◽  
Vol 54 (3) ◽  
pp. 685-697 ◽  
Author(s):  
J. D. Fish ◽  
Susan Fish
Keyword(s):  
Growth Rate ◽  
Population Structure ◽  
Breeding Success ◽  
Salt Marshes ◽  
Breeding Cycle ◽  
Population Densities ◽  
Hydrobia Ulvae ◽  
Sexually Mature

Hydrobia ulvae has featured in many reports on the ecology of estuaries and mud-flats, yet surprisingly there are few detailed studies on population structure, growth and the breeding cycle. Population densities fluctuate widely from one locality to the next, and the variation in size recorded for the adults suggests significant differences in growth rate and the size at which the snails become sexually mature. The occurrence of Hydrobia in the stomachs offish and birds is well documented (Clay, 1960) and the suggestion that this species may influence the breeding success of some species of bird (Anderson, 1971) illustrates its importance in the ecology of estuaries and salt marshes.

Climate change and breeding success: decline of the capercaillie in Scotland

2001 ◽  
Vol 70 (1) ◽  
pp. 47-61 ◽  
Author(s):  
Robert Moss ◽  
James Oswald ◽  
David Baines
Keyword(s):  
Climate Change ◽  
Breeding Success
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