Reproductive effort and future parental competitive ability: A nest box removal experiment
نویسندگان
چکیده
منابع مشابه
Ability Tracking, Parental Effort and Student Achievement∗
We develop and estimate an equilibrium model of ability tracking. A school allocates students into tracks based on their ability and then chooses trackspecific inputs to test score production. Parents choose parental effort in response. We estimate the model using data from the ECLS-K. We use the estimated model to quantify the effects of allowing ability tracking, making proficiency standards ...
متن کاملAbility Tracking, School and Parental Effort, and Student Achievement
We develop and estimate an equilibrium model of ability tracking. In the model, a school chooses how to allocate students into tracks based on their ability and chooses track-specific inputs. Parents choose parental effort in response. We estimate the model using data from the ECLS-K. We use the estimated model to first examine the effects of disallowing tracking on school and parental inputs a...
متن کاملParental care of a cowbird host: caught between the costs of egg-removal and nest predation.
Avian brood parasites reduce host fitness through the addition of parasitic eggs and the removal of host eggs. Both parasitic egg-addition and host egg-removal may be important sources of selection on host behaviour, creating fitness trade-offs with selection imposed by nest predation. However, the relative costs hosts suffer from egg-addition and host egg-removal and the responses to these cos...
متن کاملImpacts of Tree Rows on Grassland Birds and Potential Nest Predators: A Removal Experiment
Globally, grasslands and the wildlife that inhabit them are widely imperiled. Encroachment by shrubs and trees has widely impacted grasslands in the past 150 years. In North America, most grassland birds avoid nesting near woody vegetation. Because woody vegetation fragments grasslands and potential nest predator diversity and abundance is often greater along wooded edge and grassland transitio...
متن کاملNest predation increases with parental activity: separating nest site and parental activity effects.
Alexander Skutch hypothesized that increased parental activity can increase the risk of nest predation. We tested this hypothesis using ten open-nesting bird species in Arizona, USA. Parental activity was greater during the nestling than incubation stage because parents visited the nest frequently to feed their young during the nestling stage. However, nest predation did not generally increase ...
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ژورنال
عنوان ژورنال: Ecology and Evolution
سال: 2018
ISSN: 2045-7758
DOI: 10.1002/ece3.4342