scholarly journals A Large Brood of Ospreys

The Auk ◽  
1895 ◽  
Vol 12 (4) ◽  
pp. 389-389
Author(s):  
Reginald Heber Howe,
Keyword(s):  
Large Brood

scholarly journals Adoption as a gosling strategy to obtain better parental care? Experimental evidence for gosling choice and age-dependency of adoption in greylag geese

Behaviour ◽  
2005 ◽  
Vol 142 (11-12) ◽  
pp. 1515-1533 ◽  
Author(s):  
Jan Komdeur ◽  
Ellen Kalmbach ◽  
Pascal van der Aa
Keyword(s):  
Parental Care ◽  
Individual Recognition ◽  
Alloparental Care ◽  
Costs And Benefits ◽  
Generational Conflict ◽  
Anser Anser ◽  
State Dependent ◽  
Greylag Goose ◽  
Large Brood ◽  
Greylag Geese

AbstractAdoptions of unrelated young by successful breeders are a form of alloparental care which has been observed in many species of geese. Depending on costs and benefits to the parents, adoptions might represent an inter-generational conflict or a mutually beneficial strategy. Although most studies of wild populations suggest benefits of large brood sizes, incidental observations mostly report aggressive behaviour of parents towards lone goslings. No studies have investigated mechanisms and behaviour during adoptions in order to test whether adoptions are driven by parents or goslings. To test whether goslings might use adoption as a strategy to obtain better parental care, we carried out an experiment where lone greylag goose (Anser anser) goslings could choose between a dominant and a subordinate foster family. In a second experiment we also tested whether adoption was age-dependent. Except for one case, all lone goslings (N = 16) chose the dominant family. Parents showed very little aggression towards lone goslings at three days after hatch, but aggression increased until 9 days and remained high thereafter. At the same time as aggression increased, the chance of successful adoption decreased. In the first five weeks of life, goslings which had been adopted were no further away from parents than original goslings during grazing. These results show that goslings might choose foster families according to dominance. The fact that with increasing gosling age parents are less willing to adopt could be due to improved individual recognition and reflect decreasing benefits of gaining an additional family member. More detailed studies on state-dependent costs and benefits of adoptions are required to determine whether adoptions in geese represent conflict or mutualism, and why this changes with gosling age.

scholarly journals Caenorhabditis elegans as a Model Host to Monitor the Candida Infection Processes

2018 ◽  
Vol 4 (4) ◽  
pp. 123 ◽  
Author(s):  
Asmaa Elkabti ◽  
Luca Issi ◽  
Reeta Rao
Keyword(s):  
Low Cost ◽  
Petri Dish ◽  
Loss Of Function ◽  
Genetic Stock ◽  
C Elegans ◽  
Long Term Storage ◽  
Large Brood ◽  
Opportunistic Fungal Pathogen ◽  
Infection Processes

C. elegans has several advantages as an experimental host for the study of infectious diseases. Worms are easily maintained and propagated on bacterial lawns. The worms can be frozen for long term storage and still maintain viability years later. Their short generation time and large brood size of thousands of worms grown on a single petri dish, makes it relatively easy to maintain at a low cost. The typical wild type adult worm grows to approximately 1.5 mm in length and are transparent, allowing for the identification of several internal organs using an affordable dissecting microscope. A large collection of loss of function mutant strains are readily available from the C. elegans genetic stock center, making targeted genetic studies in the nematode possible. Here we describe ways in which this facile model host has been used to study Candida albicans, an opportunistic fungal pathogen that poses a serious public health threat.

scholarly journals Multiple paternity: determining the minimum number of sires of a large brood

2010 ◽  
Vol 10 (2) ◽  
pp. 282-291 ◽  
Author(s):  
A. ERIKSSON ◽  
B. MEHLIG ◽  
M. PANOVA ◽  
C. ANDRE ◽  
K. JOHANNESSON
Keyword(s):  
Multiple Paternity ◽  
Minimum Number ◽  
Large Brood

scholarly journals Unusually Large Brood Size of the Saw-Whet Owl

Blue Jay ◽  
1965 ◽  
Vol 23 (2) ◽  
Author(s):  
Spencer G. Sealy
Keyword(s):  
Brood Size ◽  
Large Brood

HYBRID NARRATIVES: THE MAKING OF CHARACTER AND NARRATIVE AUTHORITY IN RUDYARD KIPLING'S “HIS CHANCE IN LIFE”

2008 ◽  
Vol 36 (2) ◽  
pp. 343-359
Author(s):  
Jean Fernandez
Keyword(s):  
Short Story ◽  
Mixed Race ◽  
Rudyard Kipling ◽  
Narrative Authority ◽  
Mixed Blood ◽  
Large Brood ◽  
The Moment ◽  
At Home

When Rudyard Kipling offeredhis wry observations on officialdom in Imperial India to his cousin, Margaret Bourne-Jones, in 1885, he might have been toying with the kernel of one of his more perplexing stories on race and hybridity, written for his 1888 anthology,Plain Tales from the Hills. When Kipling actually came to address this theme fictionally, in his short story entitled “His Chance in Life,” he made one crucial change: he substituted a dark-skinned telegraphist of mixed race for an Englishman, thereby engaging with the illogics of character that hybridity posed for narratives on race and Empire. In Kipling's story, his hybrid hero, stationed in the mofussil town of Tibasu, experiences a sudden surge of Britishness in the mixed blood flowing in his veins at the moment when crisis strikes, and leads a group of terrified policemen in quelling a communal riot between Hindus and Muslims. He is found guilty of exercising unconstitutional authority by a Hindu sub-judge, but the verdict is set aside by the British Assistant Collector. As a reward, he is promoted to an up-country Central Telegraph Office, where he proceeds to marry his ugly sweetheart, also of mixed race parentage, and live happily with a large brood of children in quarters on the office premises, a loyal government servant, “at home” with officialdom and Empire.

scholarly journals Condition of large brood in Bonelli's EagleHieraaetus fasciatus

Bird Study ◽  
2005 ◽  
Vol 52 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Javier Balbontín ◽  
Miguel Ferrer
Keyword(s):  
Large Brood

The biology of Gammarus (Crustacea, Amphipoda) in the northwestern Atlantic. IX. Gammarus wilkitzkii Birula, Gammarus stoerensis Reid, and Gammarus mucronatus Say

1975 ◽  
Vol 53 (8) ◽  
pp. 1105-1109 ◽  
Author(s):  
D. H. Steele ◽  
V. J. Steele
Keyword(s):  
Gulf Of Mexico ◽  
Arctic Ocean ◽  
Rhode Island ◽  
The Arctic ◽  
Early Winter ◽  
Small Species ◽  
Gammarus Mucronatus ◽  
The Arctic Ocean ◽  
Large Brood ◽  
Circumpolar Arctic

Gammarus wilkitzkii is a circumpolar, arctic species found from the Arctic Ocean south to Newfoundland. Females produce a single large brood of large eggs in the autumn or early winter which hatches and is released from April to July. The species matures at a relatively large size.Gammarus stoerensis is an Atlantic amphiboreal species found from eastern Nova Scotia south to Rhode Island. It is a small species and females produce a series of small broods of small eggs between the spring and autumn, but are in the resting stage between then and late winter.Gammarus mucronatus is found from southwestern Newfoundland south to the Gulf of Mexico. It is a small species and produces a low number of small eggs in each of several summer broods.

Variation in a Large Brood of Lined Snakes, Tropidoclonion lineatum (Reptilia, Serpentes, Colubridae)

1978 ◽  
Vol 12 (1) ◽  
pp. 115 ◽  
Author(s):  
Richard S. Funk ◽  
John K. Tucker
Keyword(s):  
Large Brood
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