coefficient of relatedness calculation (Sciuridae)

Knowledge graph centered on coefficient of relatedness calculation (Sciuridae) with 47 nodes and 144 connections. Top connected: Marmota flaviventris, Spruce, mark-recapture (Sciuridae), Spermophilus lateralis, focal animal sampling (Sciuridae).

Method synopsis

Construction of genealogies from long-term observational data and estimation of coefficients of relatedness using Hamilton's method with assumptions about mating system and paternity.

Synthesized from method descriptions across 3 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Female kin density affects offspring sex ratio in an asocial mammal, the golden-mantled ground squirrell <i>Callospermophilus lateralis</i> (2017), Animal Behaviour. Implementations in other papers (listed below) may differ.

1. Calculate female densities
   Adult female density varied several-fold over study period from minimum 0.9 squirrels/ha in 1999 to maximum 2.32 squirrels/ha in 2005. Local density of breeding females ranged from one to six females per locality. Female kin density was calculated as number of related breeding females (coefficient of relatedness >0.125) using same locality as focal female. Female nonkin density calculated as number of unrelated breeding females using same locality as focal female
   Quantities: Density measured as squirrels per hectare and per locality, kin density 1-4+ females, nonkin density 1-4+ femalesDuration: Calculated annually for each breeding seasonConditions: Based on breeding female distribution each year

Typical Equipment

• long-term observational records

Output Measurements

• coefficient of relatedness
• genealogies

Papers Using This Protocol (3)

Species Studied With This Protocol