An experimental study of nest predation in adjacent deciduous, coniferous and successional habitats

Article Abstract:

The nesting success of songbirds was examined in deciduous, coniferous and successional habitats using measurements of quail egg predation in artificial nests. Results revealed that nest survival was greater in successional habitats compared to the other habitat types. Ground nests generally had higher rates of survivorship than above ground nests. However, no significant correlation was found between measures of habitat structure and predation levels. Variations in predation found in the three locations were attributed to anthropogenic factors and landscape features.

Analysis, Habitat (Ecology), Habitats

---

Predation of artificial ground nests at two types of edges in a forest-dominated landscape

Article Abstract:

A study examined predation of manmade ground nests at two types of edges in a forested landscape. Artificial nests were put in forests adjacent to stands of regenerating forest with 'hard' edges and stands of young forest with 'soft' edges. Findings revealed overall nest predication of 72% after seven days of exposure and 85% after 14 days. There was higher predation near soft edges compared to near hard edges after seven and 14 days. Also, there was higher predation near the edges than away from the edges.

Behavior, Bobwhite, Forest ecology

---

Impacts of predators: center nests are less successful than edge nests in a large nesting colony of Least Terns

Article Abstract:

A study on the impacts of predators and the spatial and temporal patterns of breeding success among Least Terns was conducted to prove the selfish herd hypothesis. This hypothesis states that nests located in the center of a colony are more likely to suffer from predation and lower hatching and fledging success compared to those located at the edge. Results suggest that impacts of predators may be due to the effectiveness of Least Tern antipredator behavior.

Breeding, Herons, Colonies (Biology)

Similar abstracts:

• Abstracts: The evolution of the G matrix: selection or drift? Natural selection and genetic differentiation of behaviour between parasitoids from wild and cultivated habitats
• Abstracts: Diurnal cycles of sulfate reduction under oxic conditions in cyanobacterial mats. Characterization of the nodularin synthetase gene cluster and proposed theory of the evolution of cyanobacterial hepatotoxins
• Abstracts: Human microsatellites applicable for analysis of genetic variation in apes and Old World monkeys. DNA fingerprinting in a butterfly, Bicyclus anynana (Satyridae)
• Abstracts: Crystal structure of the replication terminator protein from B. subtilis at 2.6 angstrom. A 27 kd protein of E. coli promotes antitermination of replication in vitro at a sequence-specific replication terminus
• Abstracts: Molecular machines integrate coincident synaptic signals. Structural elements of G-alpha subunits that interact with G-beta-gamma, receptors, and effectors

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.