Heteroblasty in Bromeliads: Its Frequency in a Local Flora and the Timing of the Transition from Atmospheric to Tank Form in the Field (Record no. 48143)

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fixed length control field 02148nam a2200241Ia 4500
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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625153932.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-13946
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245 10 - TITLE STATEMENT
Title Heteroblasty in Bromeliads: Its Frequency in a Local Flora and the Timing of the Transition from Atmospheric to Tank Form in the Field
490 0# - SERIES STATEMENT
Volume/sequential designation International Journal of Plant Sciences, 173(7), p.780-788, 2012
520 3# - SUMMARY, ETC.
Summary, etc. The prevalence and functional relevance of heteroblasty, i.e., abrupt morphological changes in ontogeny in many angiosperms, remain obscure. To obtain a first estimate of the number of heteroblastic bromeliads, we used a simple metric to distinguish unambiguously heteroblastic from homoblastic species. We addressed ecological relevance by determining the time for transition between ontogenetic stages (atmospheric and tank)and by comparing the prevalence of heteroblasty in different habitats. Epiphytic Tillandsioideae were studied in a lowland and a montane forest in Panama. Repeated censuses allowed estimates of relative growth rates and the construction of ontogenetic trajectories for 14 species. Data on leaf index (leaf length/width)were taken for 23 species. Ontogenetic changes in leaf index reliably separate homoblastic and heteroblastic species. The early atmospheric stage in heteroblastic species lasts, on average, 3 yr, equivalent to 20(percent)of the average generation time. Heteroblastic species are as common in the understory as at exposed growing sites. This finding challenges the notion of heteroblasty as an adaptation to drought, because there are no differences in the proportion of heteroblastic species in wet and dry habitats. An alternative hypothesis is proposed.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GROWTH
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element LEAF INDEX
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element ONTOGENY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element RELATIVE GROWTH RATE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element VASCULAR EPIPHYTES.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Meisner, K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Zotz, G.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1V5aG964tHMGvy7D4laH4VjP7sZgr4xiw/view?usp=drivesdk">https://drive.google.com/file/d/1V5aG964tHMGvy7D4laH4VjP7sZgr4xiw/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-13946 25.06.2025 25.06.2025 Documentos solicitados