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datasets available to search
ShareScore release 0.9.0
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32 results for “Nest density”
Vespula Nest Density
<p>Counts of Vespula wasp nests along transects (density) in Nelson (New Zealand) area over multiple years</p>
Estimation of worker population size-density by nest counting in the Asian weaver ant, Oecophylla smaragdina (Hymenoptera: Formicidae) and it's dynamic in oil palm plantations industry
<p>Supplementary material-information supporting the article of research related to the Asian weaver ant population size-density in the oil palm plantations. The findings suggested an abundant numerical amount of individual workers per colony. The weaver ant were self-sustainable surviving during long years i.e. more than 20 years. This is the first study carried out on a large scale in oil palm plantation directly in the field by gathering only empirical data and monitor the population dynamic on a long term basis. </p>
Data from: Tick infestation of chicks in a seabird colony varies with local breeding synchrony, local nest density and habitat structure
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Data from: Linking songbird nest predation to seedling density: sugar maple masting as a resource pulse in a forest food web
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Data from: Partitioning the sources of demographic variation reveals density-dependent nest predation in an island bird population
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Data from: Spatiotemporal patterns of duck nest density and predation risk: a multi-scale analysis of 18 years and more than 10 000 nests
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Remotely sensed forest understory density and nest predator occurrence interact to predict suitable breeding habitat and the occurrence of a resident boreal bird species
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Data from: Variable drivers of primary versus secondary nesting: density-dependence and drought effects on greater sage-grouse
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Data from: The influence of crop tiller density on the breeding performance of a cereal-nesting specialist
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Data from: Nest association between two predators as a behavioral response to the low density of rodents
<p>Many birds nest in association with aggressive birds of other species to benefit from their protection against predators. We hypothesized that the protective effect also could extend to foraging resources, whereby the resultant resource enriched habitats near a nest of aggressive raptors could be an alternative cause of associations between nesting bird species with non-overlapping foraging niches. In the Arctic, the Rough-legged Hawk (Buteo lagopus) and the Peregrine Falcon (Falco peregrinus) are 2 raptor species with non-overlapping food resources that have been reported to nest sometimes in close proximity. Since nesting Peregrine Falcons are very aggressive, they may protect the small rodent prey near their nests from predation, and Rough-legged Hawks could use these hot spots as a nesting territory. In 2 regions in low Arctic Russia we found that (1) the nesting territories of Peregrine Falcons were indeed enriched with small rodents as compared to control areas, (2) the probability of nest association between the 2 raptors increased when rodent abundance was generally low in the region where hawks did not use alternative prey, and (3) hawk reproductive success increased when nesting close to Peregrine Falcons. These results suggest that implications of aggressive nest site defense in birds in certain cases may involve more mechanisms than previously explored. A key ecological process in tundra, rodent population cycles, may explain the occurrence and adaptive significance of a specific behavior pattern, the nesting association between 2 raptor species.</p>
Data from: Fragmentation shapes nest density and social structure but not genetic diversity of Temnothorax crassispinus (Formicidae)
<p><strong>This README accompanies data_fragmentation_T.crassispinus.xlsx</strong></p> <p> </p> <p><strong><em>Associate publication : </em></strong></p> <p> </p> <p>Fragmentation shapes nest density and social structure but not genetic diversity of <em>Temnothorax crassispinus</em> (Formicidae)</p> <p>M. Cordonnier, T. Lindner, J. Heinze</p> <p>Lehrstuhl für Zoologie / Evolutionsbiologie, Univ. Regensburg</p> <p> </p> <p>****************************** CONTENTS *******************************</p> <p>The data can be readily imported in any statistical package or spreadsheet program. Please, contact me if you need the file formatted in other ways.</p> <p> </p> <p>This file includes a description of the variables.</p> <p>***********************************************************************</p> <p>Variable names and descriptions</p> <p> </p> <p><strong>Sheet 1</strong></p> <p>ID nest: identity of the nest of the genotyped worker</p> <p>2MS46 to GT-1: complete genotype of the worker. Missing data: “-9”</p> <p>Q1_inter & Q2_inter: Q-values resulting from the Bayesian clustering (interspecific level)</p> <p>ID_inter: species identity based on genotype (TC: <em>Temnothorax crassispinus</em>, TN: <em>T. nylanderi</em>; H: intermediate)</p> <p>Q1_intra & Q2_intra: Q-values resulting from the Bayesian clustering (intraspecific level)</p> <p>ID_intra: population identity based on genotype (TC1: <em>Temnothorax crassispinus</em>, cluster1; TC2: <em>T. crassispinus</em>, cluster2)</p> <p>ID_sequencing_C1-J-2183/C2-N-3661: species identity based on sequencing for primers C1-J-2183/C2-N-3661 (TC: <em>Temnothorax crassispinus</em>, TN: <em>T. nylanderi</em>)</p> <p>ID_sequencing_LCO1490 ⁄ HCO2198: species identity based on sequencing for primers LCO1490 ⁄ HCO2198 (TC: <em>Temnothorax crassispinus</em>, TN: <em>T. nylanderi</em>)</p> <p> </p> <p><strong>Sheet 2</strong></p> <p>Idpatch: identity of the forest patch</p> <p>Latitude, longitude: geographic coordinates of the forest patch</p> <p>Date, Hour: Sampling time of the forest patch</p> <p>TC_Nest-density: number of <em>T. crassispinus </em>nests sampled per people in 30 minutes in the forest patch</p> <p>Prop_Queenright_nests: proportion of queenright nests in the forest patch</p> <p>Gen_div: averaged number of alleles per <em>T. crassispinus</em> nest in the forest patch</p> <p>Connect1 & Connect5: distance to the closest patch and mean distance to the five closest patches</p> <p>Nbneig200 & Nbneig400: number of neighboring forest patches at 200 and 400 meters from the focal forest patch</p> <p>area: size of the forest patch</p> <p>shape: shape of the forest patch (perimeter/surface)</p> <p> </p> <p> </p> <p>****************************** CONTACTING *****************************</p> <p>Contact me at:</p> <p> </p> <p>Marion Cordonnier</p> <p>e-mail: marion.cordonnier@hotmail.com</p> <p> </p> <p>***********************************************************************</p> <p> </p> <p> </p>
Data from: Nest association between two predators as a behavioral response to the low density of rodents
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