[Changes in Ecosystem Services and Equity Identification in Nanchang Under the Influence of Construction Land Expansion].

The expansion of construction land and the changes in ecosystem services and their interactions are a major factors affecting urban development and ecological protection. Using spatial econometric models， this study explores the spatial interaction between the expansion of urban land for construction and ecosystem services and tests the existence of a correlation between the two. In this context， the study identifies and measures the levels of ecological equity and expansion efficiency for each township in the study area.

Nest sanitation facilitates egg recognition in the common tailorbird, a plaintive cuckoo host.

Nest sanitation is a ubiquitous behavior in birds and functions to remove foreign objects that accidentally have fallen into their nests. In avian brood parasitism, the host's ability to recognize and reject parasitic eggs is a specific anti-parasitic behavior. Previous studies have shown that egg recognition may have evolved from nest sanitation behavior; however, few studies have offered evidence in support of this hypothesis.