Factors Affecting Reproductive Success of Wood Storks (Mycteria americana) in East-Central Georgia

The Auk ◽  
1995 ◽  
Vol 112 (1) ◽  
pp. 237-243 ◽  
Author(s):  
Malcolm C. Coulter ◽  
A. Lawrence Bryan,
Keyword(s):  
Reproductive Success ◽  
East Central ◽  
Factors Affecting ◽  
Mycteria Americana ◽  
Wood Storks

scholarly journals Effect of Foraging and Nest Defense Tradeoffs on the Reproductive Success of Wood Storks (Mycteria americana)

Waterbirds ◽  
2021 ◽  
Vol 43 (2) ◽  
Author(s):  
Alexis Bruant ◽  
Simona Picardi ◽  
Peter Frederick ◽  
Mathieu Basille
Keyword(s):  
Reproductive Success ◽  
Nest Defense ◽  
Mycteria Americana ◽  
Wood Storks

scholarly journals Effect of Foraging and Nest Defense tradeoffs on the Reproductive Success of Wood Storks (Mycteria americana)

2019 ◽  
Author(s):  
Alexis Bruant ◽  
Simona Picardi ◽  
Peter Frederick ◽  
Mathieu Basille
Keyword(s):  
Reproductive Success ◽  
Parental Care ◽  
Parental Behavior ◽  
Nest Attendance ◽  
Palm Beach County ◽  
Functional Link ◽  
Trade Offs ◽  
Nest Protection ◽  
Mycteria Americana ◽  
Wood Storks

AbstractIn many species of birds, parental care is provided by both parents to maximize offspring survival, and there may be important trade-offs between maximizing food gathering and nest protection during the nesting period. The role of parental care in determining reproductive success was investigated in Wood Storks (Mycteria americana), and specifically how the trade-off between frequency and duration of foraging trips, and nest protection has contributed to the nesting outcome. Parental behavior of 85 pairs of Wood Storks was monitored throughout the nesting season in two breeding colonies in Palm Beach County, Florida. Wood Storks have gradually increased the frequency, but not the duration, of foraging trips as chicks developed. The ratio of hatchlings to fledglings was positively associated with the frequency of foraging trips during late chick development. Intra-specific aggressions resulting in nest takeovers have affected 32 % of the nests under study. Occurrence of nest takeovers have been higher for later-breeding pairs, and was happened primarily in the first few weeks of incubation, but was not affected by the degree of joint nest attendance of both parents. These results establish a functional link between parental effort and reproductive outcome in Wood Storks, and highlight the importance of frequent foraging trips, but not nest attendance, by parents.

scholarly journals A comparative study on the reproductive success of two rewarding Habenaria species (Orchidaceae) occurring in roadside verge habitats

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Wenliu Zhang ◽  
Jiangyun Gao
Keyword(s):  
Reproductive Success ◽  
Fruit Set ◽  
Plant Density ◽  
Flowering Plant ◽  
Floral Display ◽  
Pollinator Behaviour ◽  
Factors Affecting ◽  
Nectar Sugar ◽  
Viable Seeds ◽  
Viable Embryo

Abstract Background Most orchid species have been shown to be severely pollination limited, and the factors affecting reproductive success have been widely studied. However, the factors determining the reproductive success vary from species to species. Habenaria species typically produce nectar but exhibit variable fruit set and reproductive success among species. Here, we investigated the influence of the flowering plant density, inflorescence size, breeding system, and pollinator behaviour on the reproductive success of two rewarding Habenaria species. Results Our observations indicated that Habenaria limprichtii and H. petelotii co-occur in roadside verge habitats and present overlapping flowering periods. Both species were pollination limited, although H. limprichtii produced more fruits than H. petelotii under natural conditions during the 3-year investigation. H. petelotii individuals formed distinct patches along roadsides, while nearly all H. limprichtii individuals clustered together. The bigger floral display and higher nectar sugar concentration in H. limprichtii resulted in increased attraction and visits from pollinators. Three species of effective moths pollinated for H. limprichtii, while Thinopteryx delectans (Geometridae) was the exclusive pollinator of H. petelotii. The percentage of viable seeds was significantly lower for hand geitonogamy than for hand cross-pollination in both species. However, H. limprichtii may often be geitonogamously pollinated based on the behaviours of the pollinators and viable embryo assessment. Conclusions In anthropogenic interference habitats, the behaviours and abundance of pollinators influence the fruit set of the two studied species. The different pollinator assemblages in H. limprichtii can alleviate pollinator specificity and ensure reproductive success, whereas the more viable embryos of natural fruit seeds in H. petelotii suggested reducing geitonogamy by pollinators in the field. Our results indicate that a quantity-quality trade-off must occur between species with different breeding strategies so that they can fully exploit the existing given resources.

Factors affecting pollinator visitation and reproductive success in Sonneratia caseolaris and Aegiceras corniculatum in a mangrove forest in India

2001 ◽  
Vol 17 (3) ◽  
pp. 431-447 ◽  
Author(s):  
SHALINI PANDIT ◽  
B. C. CHOUDHURY
Keyword(s):  
Reproductive Success ◽  
Mangrove Forest ◽  
Time Of Day ◽  
Pollinator Visitation ◽  
Aegiceras Corniculatum ◽  
Factors Affecting ◽  
Plant Reproductive Success ◽  
Sonneratia Caseolaris ◽  
Exclusion Experiments ◽  
Selfing Species

Pollinator visitation to, and the reproductive success of, Sonneratia caseolaris (Sonneratiaceae) and Aegiceras corniculatum (Myrsinaceae) was investigated in a mangrove forest in India. S. caseolaris was shown to be primarily outcrossed and A. corniculatum was shown to be a selfing species. The flowers of both plant species attracted several diurnal and nocturnal visitors. Earlier reports had indicated that S. caseolaris flowered for one night and was exclusively night-pollinated. But flowers of this species were found to be in bloom both at night and during the day, and diurnal visitors to the flowers were more diverse and frequent than nocturnal ones. This was related to the higher volume and energy value of nectar in the morning. The effects of time of day and temperature on visitation rates were quantified. The importance of visitors to plant reproductive success was investigated via controlled visitor-exclusion experiments. Pollinators were expected to be more important for the outcrossing species than for the selfing species, and this was confirmed by the results of the exclusion experiments. In S. caseolaris reproductive success was determined both by pollinator availability and the intensity of flower and fruit predation, while in A. corniculatum it is likely to be resource limited.

Food of Nestling Wood Storks in East-Central Georgia

1992 ◽  
Vol 15 (2) ◽  
pp. 219 ◽  
Author(s):  
F. Chris Depkin ◽  
Malcolm C. Coulter ◽  
A. Lawrence Bryan
Keyword(s):  
East Central ◽  
Wood Storks

Blood Parasites in Wood Storks (Mycteria americana) From the Southeastern United States

2008 ◽  
Vol 94 (5) ◽  
pp. 1178-1179 ◽  
Author(s):  
Cody J. Zabransky ◽  
Stephen L. Webb ◽  
Alan M. Fedynich ◽  
A. Lawrence Bryan
Keyword(s):  
United States ◽  
Southeastern United States ◽  
Blood Parasites ◽  
Mycteria Americana ◽  
Wood Storks
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