10.5061/DRYAD.PS320
Laliberté, Etienne
University of Western Australia
Zemunik, Graham
University of Western Australia
Turner, Benjamin L.
Smithsonian Tropical Research Institute
Data from: Environmental filtering explains variation in plant diversity
along resource gradients
Dryad
dataset
2015
Chordifex sinuosus
Crassula sp. cotula
Conostylis aurea
Olearia rudis
Acacia lasiocarpa
Olearia dampieri subsp. eremicola
Laxmannia ramosa subsp. deflexa
Lepidosperma costale
Thysanotus patersonii
Goodenia coerulea
Lomandra caespitosa
Coastal Wattle
Austrostipa macalpinei
Calytrix strigosa
Pixie Mops
Calothamnus quadrifidus subsp. quadrifidus
species pool
Opercularia spermacocea
Platysace juncea
Labichea cassioides
Eremaea violacea
Pale Grass-lily
Granny Bonnets
Araliaceae sp.
Firewood Banksia
Hardenbergia comptoniana
Holocene
Caladenia flava
Leucopogon insularis
Scaevola canescens
Kondrung
Cryptandra myriantha
Laxmannia sessiliflora subsp. drummondii
Stachystemon axillaris
Alexgeorgea nitens
Centrolepis drummondiana
Climbing Lignum
Stylidium maitlandianum
Logania spermacocea
Threlkeldia diffusa
Hybanthus calycinus
Blancoa canescens
Austrostipa compressa
Caesia micrantha
Daucus glochidiatus
Darwinia sanguinea
Hemiandra aff. incana
Diuris sp.
Catspaw
Desmocladus virgatus
Jacksonia sternbergiana
Knotted Poa
Anigozanthos humilis
Hydrocotyle tetragonocarpa
Gnephosis tenuissima
Pimelea ferruginea
Senecio pinnatifolius var. latilobus
Petrophile axillaris
Monotaxis grandiflora
soil chronosequence
Fringed Lily
Dasypogon obliquifolius
Amphipogon debilis
Exocarpos sparteus
Stoichiometry
Scaevola sp. North Lesueur
Zygophyllum fruticulosum
Woodbridge Poison
Silky Mat Rush
Daviesia nudiflora subsp. nudiflora
Leptospermum spinescens
Melaleuca psammophila
Jacksonia hakeoides
Crassula closiana
Cowslip Orchid
Conostylis candicans subsp. calcicola
Pimelea leucantha
Drosera pallida
Petrophile brevifolia
Asteraceae aff. Senecio
Rhagodia baccata
Dwarf Sheoak
Woolly Dragon
Pityrodia bartlingii
Yellow Tailflower
Fan-leaved Hakea
Desmocladus asper
Hibbertia glaberrima
Brachyscome bellidioides
Leucopogon aff. polymorphus
Conospermum wycherleyi
Eremaea pauciflora
Geranium solanderi
Corynotheca micrantha
Drosera menziesii subsp. penicillaris
Broom Ballart
Schoenus unispiculatus
Acacia cyclops
Banksia sclerophylla P4
Andersonia heterophylla
Asteraceae sp. weed?
Olearia paucidentata
Phyllangium sulcatum
Angianthus cunninghamii
Lomandra maritima
Xanthosia huegelii
Rytidosperma occidentale
Leucopogon conostephioides
Poa porphyroclados
Jacksonia sp. fine teeth
Drosera porrecta
Lepidobolus preissianus
Thryptomene baeckeacea
Lobelia gibbosa
Poaceae sp. fine
Leucopogon sp. Lesueur (B. Evans 530)
Arthropodium sp.
Banksia shuttleworthiana
Daviesia divaricata subsp. divaricata
Acacia xanthina
Common White Spider Orchid
Large Flowered Bogrush
White-stemmed Wattle
Brachyscome iberidifolia
Amphipogon turbinatus
Thryptomene sp.
Ptilotus polystachyus
Bearded Dryandra
Purple Enamel Orchid
Acacia sp. fat leaf
Conospermum canaliculatum subsp. canaliculatum
Lepidosperma squamatum
Anthocercis littorea
Gastrolobium nervosum
Olearia axillaris
Hakea incrassata
Lomandra suaveolens
Stylidium dichotomum
Yellow Buttercups
Adenanthos cygnorum subsp. cygnorum
Leucopogon sp. revolute leaf
Pittosporum ligustrifolium
Golden Conostylis
Poaceae sp. racemose
Melaleuca trichophylla
Hibbertia hypericoides
Common Stylewort
Muehlenbeckia adpressa
Anthocercis ilicifolia subsp. ilicifolia
Conostylis teretiuscula
Blueboy
Crassula colorata var. acuminata
Ficinia nodosa
Acacia spathulifolia
Pterostylis vittata
Summer Coppercups
Native Wisteria
Summer-scented Wattle
Podolepis gracilis
Anthobolus foveolatus
Hakea eneabba
Coastal Blackbutt
Heath Strangea
Stinkwood
Acacia sphacelata subsp. sphacelata
Stylidium cygnorum
Purple Tassels
Lysinema pentapetalum
Banded Greenhood
Banksia attenuata
Leucopogon planifolius
Drosera macrantha subsp. macrantha
Petrophile linearis
Phosphorus
Lomandra hermaphrodita
Gastrolobium linearifolium
Fleshy-leaved Triggerplant
Native Parsnip
Melaleuca huegelii subsp. huegelii
Poa drummondiana
Mesomelaena graciliceps
Melaleuca cardiophylla
Philotheca spicata
Cryptandra mutila
Banksia prionotes
Dog Weed
Myoporum insulare
Pterostylis sp.
Macarthuria australis
Grey Scaevola
Spyridium globulosum
Bossiaea eriocarpa
Crassula sp.
Stylidium crossocephalum
Blue-spike Milkwort
Wahlenbergia preissii
Petrophile seminuda
Sowerbaea laxiflora
Kingia australis
Hairy Yellow Pea
Common Brown Pea
Jacksonia floribunda
Thysanotus manglesianus
Lomandra sericea
Conostephium preissii
Astroloma serratifolium
Synaphea spinulosa
Phlebocarya filifolia
Stypandra glauca
Thysanotus thyrsoideus
Verticordia grandis
Pedogenesis
Stylidium piliferum
Stenopetalum gracile
Poaceae sp. aff. Bromus
Bristly Cottonhead
Scholtzia sp. Folly Hill
resource availability
Conospermum stoechadis
Leucopogon propinquus
Jacksonia furcellata
Eucalyptus todtiana
Petrophile rigida
Schoenus pedicellatus
Arnocrinum preissii
Eremaea asterocarpa subsp. asterocarpa
Ribbed Hakea
Scholtzia umbellifera
Conospermum crassinervium
Daviesia podophylla
Holly Pea
Neurachne alopecuroidea
Calothamnus hirsutus
Haemodorum spicatum
Stylidium junceum
Lobelia heterophylla
Georgeantha hexandra P4
Stenanthemum notiale subsp. notiale
Lechenaultia stenosepala
Olax scalariformis
Allocasuarina lehmanniana
Darwinia pauciflora
Yellow Autumn Lily
Podotheca gnaphalioides
Matted Triggerplant
Scaevola repens var. repens
Fountain Triggerplant
Trigger-on-stilts
Pepper and Salt
Silky-leaved Blood flower
Tricoryne elatior
Xanthorrhoea preissii
Calectasia narragara
Hibbertia huegelii
Drosera humilis
Petrophile macrostachya
Stylidium sp. small rosette + stilt
Acacia pulchella var. glaberrima
Mardja
Podotheca chrysantha
Astroloma xerophyllum
Thysanotus sparteus
Stylidium brunonianum
Stalked Guinea Flower
Acacia truncata
Melaleuca systena
Slender Banksia
Gompholobium tomentosum
Hakea trifurcata
Ptilotus sp. Northampton
Thysanotus triandrus
Lomandra hastilis
Dampiera linearis
Ricinocarpos undulatus
Conostylis crassinervia subsp. absens
Gahnia lanigera
Yellow Leschenaultia
Levenhookia stipitata
Stylidium albolilacinum
Lyginia barbata
Pyrorchis nigricans
Thelymitra campanulata
Marble Hakea
Thysanotus dichotomus
Scarlet Featherflower
Hakea lissocarpha
Johnsonia pubescens subsp. pubescens
Patersonia occidentalis var. latifolia
Conostephium pendulum
Schoenus brevisetis
Conostylis setigera
Conostylis latens
Daviesia triflora
Carpobrotus virescens
Warrine
Calytrix sp. Eneabba
Summer Smokebush
spatial heterogeneity
Macrozamia fraseri
Acorn Banksia
Schoenus aff. sp. A1 Boorabbin
Angianthus tomentosus
Nuytsia floribunda
Hakea costata
Podolepis lessonii
Hensmania stoniella P3
Trachymene pilosa
Acacia rostellifera
Lobelia tenuior
Scaevola repens var. angustifolia
Violet Eremaea
Narrow-sepaled Leschenaultia
Pearl Flower
Calandrinia sp. white
Dioscorea hastifolia
Stirlingia latifolia
Verticordia densiflora var. densiflora
Hypocalymma xanthopetalum
Spiked Scholtzia
Common Woollybush
Calytrix angulata
Synaphea spinulosa subsp. spinulosa
Laxmannia ramosa subsp. ramosa
Tufted Mat Rush
Scaevola crassifolia
Caladenia longicauda
Schoenus clandestinus
Conothamnus sp.
Gompholobium aristatum
Autumn Scrub Daisy
Pileanthus filifolius
alpha diversity
Banksia nivea subsp. nivea
Conostylis candicans subsp. candicans
Calothamnus sanguineus
Lyginia imberbis
Thysanotus arenarius
Astroloma microdonta
Banksia leptophylla var. melletica
Rough Daisybush
Alexgeorgea subterranea
Sandplain Cranberry
Lepidium rotundum
Microlaena stipoides
Drosera parvula
Burchardia congesta
Mesomelaena pseudostygia
Grass tree
Hibbertia racemosa
Lepidosperma scabrum
Podotheca angustifolia
Calandrinia liniflora
Lepidium sp. small siliqua
Schoenus curvifolius
Isolepis marginata
Beyeria cinerea
Hakea flabellifolia
Stylidium carnosum
Two-leaf Hakea
Schoenus grandiflorus
Stylidium repens
Pale Rainbow
Amyema miraculosa
Quandong
Erymophyllum tenellum
Ecdeiocolea monostachya
Ptilotus stirlingii var. stirlingii
Scaevola thesioides subsp. thesioides
Austrostipa elegantissima
Allocasuarina humilis
Caladenia sp.
Strangea cynanchicarpa
Boronia ramosa
Isotoma hypocrateriformis
Stylidium aff. cygnorum
Leucopogon sp. small leaf
Ozothamnus cordatus
Tangling Melaleuca
Mirbelia trichocalyx
Conospermum canaliculatum
Posy Triggerplant
Santalum acuminatum
Australian Carrot
Lomandra preissii
Pimelea sp. medium leaf
Snakebush
Hovea stricta
Scholtzia involucrata
Stylidium maritimum
Eremaea beaufortioides
Hibbertia sp. Gnangara
Hemiandra pungens
Calandrinia tholiformis
Drosera erythrorhiza subsp. magna
Rytidosperma caespitosum
Calandrinia sp.
Melaleuca carrii
Wild Violet
Honey Bush
Banksia dallanneyi subsp. media
Cryptostylis ovata
Blueberry Tree
Leucopogon polymorphus
Leptomeria preissiana
ecosystem development
Clematis linearifolia
Melaleuca leuropoma
Cryptandra pungens
Conospermum boreale
Isotropis cuneifolia
Diplolaena obovata
Banksia menziesii
Acanthocarpus preissii
Stylidium rigidulum
Leucopogon parviflorus
Poranthera microphylla
Banksia sessilis var. cygnorum
Resource partitioning
Stylidium adpressum
Diamond of the Desert
Comesperma calymega
Rhodanthe citrina
Leucopogon sp. fine leaf
Phyllanthus calycinus
Elythranthera brunonis
Hibbertia aurea
Lechenaultia linarioides
Winter Bell
Weeping Grass
Acacia pulchella
Banksia stenoprion
Opercularia vaginata
2015-08-29T00:00:00Z
2015-08-29T00:00:00Z
en
https://doi.org/10.1126/science.1256330
352608 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The mechanisms that shape plant diversity along resource gradients remain
unresolved because competing theories have been evaluated in isolation. By
testing multiple theories simultaneously across a >2-million-year
dune chronosequence in an Australian biodiversity hotspot, we show that
variation in plant diversity is not explained by local resource
heterogeneity, resource partitioning, nutrient stoichiometry, or soil
fertility along this strong resource gradient. Rather, our results suggest
that diversity is determined by environmental filtering from the regional
flora, driven by soil acidification during long-term pedogenesis. This
finding challenges the prevailing view that resource competition controls
local plant diversity along resource gradients, and instead reflects
processes shaping species pools over evolutionary time scales.
Vegetation data along the Jurien Bay dune chronosequenceFloristic surveys
were conducted on the 60 permanent 10 m × 10 m plots (10 plots in each of
six chronosequence stages). Each plot was surveyed at least once between
August 2011 and March 2012. To estimate canopy cover and number of
individuals for each plant species within the 10 m × 10 m plots, seven
randomly-located 2 m × 2 m subplots were surveyed within each plot. Within
each subplot, all vascular plant species were identified, the
corresponding number of individuals was counted and the vertically
projected vegetation canopy cover was estimated.jurienveg.csvSoil data
along the Jurien Bay chronosequenceBetween 11–16 June 2012, seven soil
samples (one sample per 2 m × 2 m subplot) were collected in each of the
sixty 10 m × 10 m plots, for a total of 420 samples. Subsampling was done
to obtain more accurate estimates of the mean and to estimate within-plot
spatial variation in soil properties. Samples were taken at 0–20 cm depth
using a 50-mm diameter sand auger, sieved (<2 mm) to remove roots
and other large organic debris, homogenized, and air-dried prior to
chemical analysis.Total soil [P] was measured by ignition (550 °C, 1 h)
and extraction in 1 M H2SO4, with phosphate detection by automated online
neutralization and molybdate colorimetry using a Lachat Quikchem 8500
(Hach Ltd, Loveland, CO, USA). A soil P fractionation procedure (46) was
performed on bulked samples from the 60 plots. Phosphate extracted by
anion-exchange membranes (1 cm × 4 cm; manufactured by BDH, Poole, UK, and
distributed by VWR International, West Chester, PA, USA) was desorbed from
the membranes by shaking for 1 h in 0.25 M H2SO4. All other extracts were
centrifuged (8000 × g, 15 min) and an aliquot decanted for analysis. Each
aliquot was neutralized using phenolphthalein indicator and dilute NaOH or
H2SO4 (as appropriate) and analyzed for inorganic phosphate and total P.
Extraction solutions were: 0.5 M NaHCO3, 0.1 M NaOH and 1 M HCl. Phosphate
was determined by molybdate colorimetry at 880 nm with a 1-cm path length.
Total P was determined by the same procedure following acid-persulfate
digestion at 80 °C overnight in sealed glass tubes. In both cases,
standards were prepared in the extract solution following identical
neutralization and dilution steps. The detection limit for both procedures
was approximately 0.6 mg kg-1. For each extract, organic P was calculated
as the difference between total P and inorganic P. Residual P was
calculated as the difference between the independent estimate of total P
measured by ignition and the sum of all inorganic and organic P fractions
measured from the sequential extractions. Total soil [N] was determined by
combustion and gas chromatography on a Thermo Flash 1112 analyzer (CE
Elantech, Lakewood, NJ, USA). Nitrate and ammonium were determined
colorimetrically on a Lachat Quikchem 8500 using standard procedures from
the manufacturer. Total dissolved N was determined by combustion and gas
chromatography on a Shimadzu TOC-TN analyzer. Dissolved organic N was
calculated as the difference between total dissolved N and the sum of
nitrate and ammonium. Soil pH was determined in a 1:2 soil to solution
ratio in 10 mM CaCl2 using a glass electrode. Exchangeable cations (Al,
Ca, Fe, K, Mg, Mn, Na) were determined by extraction in 0.1 M BaCl2 with
detection by ICP-OES on an Optima 7300 DV (Perkin Elmer, Inc, Shelton,
CT). Units are: total [N], %; total [P], mg kg-1; effective cation
exchange capacity (ecec), cmol(+) kg-1; dissolved organic [N] (don), mg
kg-1; ammonium (nh4), mg kg-1; nitrate (no3), mg kg-1; resin [P], mg kg-1;
all other organic and inorganic [P] fractions, mg kg-1; canola mass
(plant-based index of soil fertility), g.juriensoils.csv
Western Australia
Jurien Bay