标记重捕法（capture一recapture method)N:M=n:mN=MXn/m式中：M--标记个体数重捕个体数n-重捕样中标记数mN-样地上个体总数7/9/20258:28PM
⚫标记重捕法(capture—recapture method) N:M=n:m N=M×n/m 式中：M——标记个体数 n——重捕个体数 m——重捕样中标记数 N——样地上个体总数 7/9/2025 8:28 PM
种群的空间结构组成种群的个体在其生活空间中的位置状态或布局，称为种群的内分布型（internaldistributionpattern)或简称分布（dispersion）。种群的内分布型一般可分为3类：①均匀的（uniform）。②随机的（random）。③成群的(clumped)7/9/20258:28PM
➢ 种群的空间结构 组成种群的个体在其生活空间中的位置状态或 布局，称为种群的内分布型(internal distribution pattern)或简称分布(dispersion)。 种群的内分布型一般可分为3类： ①均匀的(uniform)。②随机的(random)。③成 群的(clumped) 7/9/2025 8:28 PM
Individuals areuniformlyAn individual has an equalIndividuals liveinareasspaced through theprobability of occurringofhighlocal abundance.environment.which are separated byanywhere in an area.areas of lowabundance.RegularClumpedRandomPatterns0酒00OAttractionberweenAntagonistie interactionsNeutral interactionsindividualsor attractionbetween individuals orberween individuals andof individuaistoaProcesseslocal depletion of resourcesberween individuals andcommon resourceJocal environment7/9/20258:28PMRandm,rgulaandclumeddiributioIGURE7.10
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ECOLOGGCONCEPTSANDAPPLICATIONSPOPULATIONDISTRIBUTIONANDABUNDANCE2随机分布10(randomdispersion)2）均匀分布（规则分布）（uniformorregulardispersion）团块分布3厅（集群分布，簇状分布，聚集分布群聚分布,核心分布）(aggregateddispersion)王绍明：7/9/20258:28PM石狗子大学生物工店
王绍明 2003.04 石河子大学生物工程学院 2）均匀分布（规则分布）(uniform or regular dispersion) 1）随机分布（random dispersion） 3）团块分布（集群分布，簇状分布,聚集分布,群聚分布,核心分布） (aggregated dispersion) 2 1 3 ECOLOGY: CONCEPTS AND APPLICATIONS POPULATION DISTRIBUTION AND ABUNDANCE 7/9/2025 8:28 PM
The less interactive stinglessColonies of the stingless beebee, T. dorsalis, is diswibutedTrigonafulriventris,whichrandomly across the sameinteractaggressively,aretract of forest.distributed regularly acrossthis tract of forest.mY0100Regular distributionRandom distributionT.fulviventris from rivalcolonies battled daily for 2weeks forDistributions of Tropical Bee Coloniesthis potentiRegular and random distributions of stingless bee
• Distributions of Tropical Bee Colonies 7/9/2025 8:28 PM