[KNIHA][B] Physiological adaptations for breeding in birds
TD Williams - 2012 - books.google.com
Physiological Adaptations for Breeding in Birds is the most current and comprehensive
account of research on avian reproduction. It develops two unique themes: the consideration …
account of research on avian reproduction. It develops two unique themes: the consideration …
Maternal androgens in black-headed gull (Larus ridibundus) eggs: consequences for chick development
We tested the hypothesis that mother birds counterbalance the negative effects of hatching
asynchrony for later–hatched chicks by increasing the yolk androgen concentrations in …
asynchrony for later–hatched chicks by increasing the yolk androgen concentrations in …
Yolk androgens and begging behaviour in black-headed gull chicks: an experimental field study
CM Eising, TGG Groothuis - Animal behaviour, 2003 - Elsevier
Black-headed gulls, Larus ridibundus, produce clutches of three eggs, which contain high
levels of maternal androgens in the yolk. These levels increase with laying order and the …
levels of maternal androgens in the yolk. These levels increase with laying order and the …
Subordinates explore but dominants profit: resource competition in high Arctic barnacle goose flocks
J Stahl, PH Tolsma, MJJE Loonen, RH Drent - Animal Behaviour, 2001 - Elsevier
Social dominance plays an important role in assessing and obtaining access to patchy or
scarce food sources in group-foraging herbivores. We investigated the foraging strategies of …
scarce food sources in group-foraging herbivores. We investigated the foraging strategies of …
Five decades of terrestrial and freshwater research at Ny-Ålesund, Svalbard
ÅØ Pedersen, P Convey, KK Newsham… - Polar …, 2022 - research.rug.nl
For more than five decades, research has been conducted at Ny-Ålesund, in Svalbard,
Norway, to understand the structure and functioning of High-Arctic ecosystems and the …
Norway, to understand the structure and functioning of High-Arctic ecosystems and the …
Fitness consequences of long-term pair bonds in barnacle geese: monogamy in the extreme
JM Black - Behavioral Ecology, 2001 - academic.oup.com
In barnacle geese Branta leucopsis, pair-bond members generally remain together every
day, each year, often for life. Geese that maintain long-lasting pair bonds during their lifetime …
day, each year, often for life. Geese that maintain long-lasting pair bonds during their lifetime …
Contrasting consequences of climate change for migratory geese: Predation, density dependence and carryover effects offset benefits of high‐arctic warming
Climate change is most rapid in the Arctic, posing both benefits and challenges for migratory
herbivores. However, population‐dynamic responses to climate change are generally …
herbivores. However, population‐dynamic responses to climate change are generally …
Why do goose parents adopt unrelated goslings? A review of hypotheses and empirical evidence, and new research questions
E Kalmbach - Ibis, 2006 - Wiley Online Library
Adoption of unrelated offspring by successful breeders is one form of brood mixing and
alloparental care that is widespread among geese and other waterfowl. Biparental care and …
alloparental care that is widespread among geese and other waterfowl. Biparental care and …
Trade-off between mating opportunities and parental care: brood desertion by female Kentish plovers
Why do some parents care for their young whereas others divorce from their mate and
abandon their offspring? This decision is governed by the trade-off between the value of the …
abandon their offspring? This decision is governed by the trade-off between the value of the …
Mutual ornamentation, sexual selection, and social dominance in the black swan
We investigated the adaptive significance of a sexually monomorphic ornament in the black
swan Cygnus atratus. Both sexes grow curled feathers on their wings (range 7–22 curled …
swan Cygnus atratus. Both sexes grow curled feathers on their wings (range 7–22 curled …