Austral Ecology

Items from 1 to 20 out of 2,009 results

article

The Ecology and Evolution of Ant–plant Interactions

DUNCAN MACKAY

Austral Ecology > 35 > 1 > 116 - 117

article

Bottom‐up effects on a plant‐endophage‐parasitoid system: The role of flower‐head size and chemistry

ANDRÉ T. C. DIAS, JOSÉ ROBERTO TRIGO, THOMAS M. LEWINSOHN

Austral Ecology > 35 > 1 > 104 - 115

The effects of water and nutrient addition on a trophic chain were studied in a plant‐endophage‐parasitoid system comprised of insects associated with flower heads of Chromolaena squalida (Asteraceae). Nine species of endophages associated with C. squalida flower heads were found, belonging to two families of Diptera – Tephritidae (Cecidochares sp1, Cecidochares sp2, Xanthaciura biocellata, X. chrysura...

article

Use of a δ¹³C–δ¹⁵N relationship to determine animal trophic positions in a tropical Australian estuarine wetland

KÁTYA ABRANTES, MARCUS SHEAVES

Austral Ecology > 35 > 1 > 96 - 103

Stable isotope composition of organisms from different trophic groups collected from a semi‐isolated wetland pool in the Ross River estuary, northern Australia, was analysed to determine if there was a consistent relationship between δ¹³C, δ¹⁵N and trophic level that could be used to assign trophic positions. A strong linear negative relationship between δ¹³C and δ¹⁵N was detected for the three trophic...

article

Evolution's Edge: The Coming Collapse and Transformation of Our World

PATRICK T MOSS

Austral Ecology > 35 > 1 > 118 - 119

article

Variation in litter under individual tree crowns: Implications for scattered tree ecosystems

CHRIS MCELHINNY, CHARLES LOWSON, BART SCHNEEMANN, CARLOS PACHÓN

Austral Ecology > 35 > 1 > 87 - 95

In forest ecosystems litter is usually assessed in terms of the average amount produced by the canopy. In scattered tree ecosystems this approach is problematic because the canopy is discontinuous and the spatial arrangement of litter highly variable. We addressed this problem by quantifying the spatial variation in litter load and litter composition associated with individual trees in a Eucalyptus melliodora – Eucalyptus blakelyi...

article

Life Cycle Assessment – Principles, Practice and Prospects

FABIANO De AQUINO XIMENES

Austral Ecology > 35 > 1 > 117 - 118

article

Spatial density‐dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)

MARCELA K. CASTELO, JUAN C. CORLEY

Austral Ecology > 35 > 1 > 72 - 81

The density‐dependence in parasitism by the robber fly Mallophora ruficauda (Diptera: Asilidae) on scarab beetle larvae (Coleoptera: Scarabaeidae) populations was studied in the present research. Mallophora ruficauda is a pestiferous species common in the open grasslands of the Pampas region of South America. Adults are predators of insects and larvae are solitary parasitoids of third instar larvae...

article

Few beetle species can be detected with 95% confidence using pitfall traps

DON A. DRISCOLL

Austral Ecology > 35 > 1 > 13 - 23

False absences in wildlife surveys make it difficult to identify metapopulation processes, increase uncertainty of management decisions and bias parameter estimates in habitat models. Despite these risks, the number of species that can be detected with a certain probability in a community survey has rarely been examined. I sampled beetles over 5 months using pitfall trap grids at three rainforest...

article

Belly up: Reduced crevice accessibility as a cost of reproduction caused by increased girth in a rock‐using lizard

LIN SCHWARZKOPF, MEGAN BARNES, BRETT GOODMAN

Austral Ecology > 35 > 1 > 82 - 86

Costs of reproduction are any aspect of current reproduction that has the potential to reduce survivorship or reproductive output, and may include physiological costs or increased risks. Females of many species experience increased body mass, and increased girth, when gravid. Increased body mass reduces running speed and increases the cost of locomotion during pregnancy, but few studies have examined...

article

Experimental herbivory of native Australian macrophytes by the introduced Mozambique tilapia Oreochromis mossambicus

ROBERT G. DOUPÉ, MATTHEW J. KNOTT, JASON SCHAFFER, DAMIEN W. BURROWS, more

Austral Ecology > 35 > 1 > 24 - 30

This study describes experimental herbivory and detritivory of three common native aquatic macrophyte species by the introduced Mozambique tilapia Oreochromis mossambicus (Peters) (Pisces: Cichlidae), and its physiological response to their consumption. There was a highly significant effect of fish herbivory on plant weight for each of the macrophyte species, but this effect was not influenced by...

article

Resolving the differences in plant burial responses

MATTHEW E. GILBERT, BRAD S. RIPLEY

Austral Ecology > 35 > 1 > 53 - 59

Burial is one of the major factors influencing plant ecology in deserts and coastal areas. Consequently, many studies have measured the responses of dune plants to sand burial. However, there remains little agreement about the mechanisms and characteristics constituting the burial response of plants. In particular, stimulation of growth has been reported as the most common plant burial response; however,...

article

Patterns and gradients of diversity in South Patagonian ombrotrophic peat bogs

TILL KLEINEBECKER, NORBERT HÖLZEL, ANDREAS VOGEL

Austral Ecology > 35 > 1 > 1 - 12

Many north‐hemispherical mires seemingly untouched by drainage and cultivation are influenced by a diffuse sum of man‐made environmental changes, such as atmospherical nitrogen deposition that mask general patterns in species richness and functional group responses along resource gradients. To obtain insights into natural diversity‐environment relationships, we studied the vegetation and the peat...

article

Spatial distribution and prediction of seed production by Eucalyptus microcarpa in a fragmented landscape

PETER A. VESK, ANTHONY DAVIDSON, YUNG EN CHEE

Austral Ecology > 35 > 1 > 60 - 71

Woodlands worldwide have been greatly modified by clearing for agriculture, and their conservation and restoration requires understanding of tree recruitment processes. Seed production is one possible point of recruitment failure, and one that the spatial arrangement of trees may affect. We sampled 118 Eucalyptus microcarpa (Myrtaceae) trees to compare and analyse the determinants of seed production...

article

Partitioning of temporal activity among desert lizards in relation to prey availability and temperature

CHRISTOPHER E. GORDON, CHRIS R. DICKMAN, MICHAEL B. THOMPSON

Austral Ecology > 35 > 1 > 41 - 52

Partitioning of activity time within ecological communities potentially reduces interspecific competition and increases the number of species that can coexist. We investigated temporal activity in a highly diverse lizard assemblage in the Simpson Desert, central Australia, to determine the degree of partitioning that occurs. Three periods were defined, daytime (sunrise to sunset), early night (sunset...

article

Near‐ground solar radiation along the grassland–forest continuum: Tall‐tree canopy architecture imposes only muted trends and heterogeneity

DAVID D. BRESHEARS, JOHN A. LUDWIG

Austral Ecology > 35 > 1 > 31 - 40

Solar radiation directly and indirectly drives a variety of ecosystem processes. Our aim was to evaluate how tree canopy architecture affects near‐ground, incoming solar radiation along gradients of increasing tree cover, referred to as the grassland–forest continuum. We evaluated a common type of canopy architecture: tall trees that generally have their lowest level of foliage high above, rather...

article

The Ecology of Browsing and Grazing

BEN MOORE

Austral Ecology > 35 > 2 > 238 - 239

article

Corrigendum

Austral Ecology > 35 > 2 > 239 - 239

article

Are dingoes a trophic regulator in arid Australia? A comparison of mammal communities on either side of the dingo fence

MIKE LETNIC, FREYA KOCH

Austral Ecology > 35 > 2 > 167 - 175

The direct and indirect interactions that large mammalian carnivores have with other species can have far‐reaching effects on ecosystems. In recent years there has been growing interest in the role that Australia's largest terrestrial predator, the dingo, may have in structuring ecosystems. In this study we investigate the effect of dingo exclusion on mammal communities, by comparing mammal assemblages...

article

Ten Commitments, Reshaping the Lucky Country's Environment

JENNIFER FIRN

Austral Ecology > 35 > 2 > 236 - 236

article

Vulnerability of an Australian anuran tadpole assemblage to the toxic eggs of the invasive cane toad (Bufo marinus)

MICHAEL R. CROSSLAND, RICHARD SHINE

Austral Ecology > 35 > 2 > 197 - 203

The invasion of cane toads (Bufo marinus) across tropical Australia has fatally poisoned many native predators; the most frequent victims may be tadpoles of native frogs, which die when they consume the toxic eggs of the toads. Field studies have documented high and species‐specific mortality of tadpoles following toad spawning. To clarify the determinants of tadpole vulnerability, we conducted 1593...

Publication date

Last 3 months (48)
Last year (254)
Last 3 years (540)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Volume

49 (183)
48 (160)
47 (158)
46 (139)
45 (129)
44 (173)
43 (115)
42 (121)
41 (116)
40 (108)
39 (112)
38 (118)
37 (134)
36 (137)
35 (106)
more

Publication language

English (2,007)
Portuguese (2)

INFONA - science communication portal

Austral Ecology

The Ecology and Evolution of Ant–plant Interactions

Bottom‐up effects on a plant‐endophage‐parasitoid system: The role of flower‐head size and chemistry

Use of a δ¹³C–δ¹⁵N relationship to determine animal trophic positions in a tropical Australian estuarine wetland

Evolution's Edge: The Coming Collapse and Transformation of Our World

Variation in litter under individual tree crowns: Implications for scattered tree ecosystems

Life Cycle Assessment – Principles, Practice and Prospects

Spatial density‐dependent parasitism and specificity in the robber fly Mallophora ruficauda (Diptera: Asilidae)

Few beetle species can be detected with 95% confidence using pitfall traps

Belly up: Reduced crevice accessibility as a cost of reproduction caused by increased girth in a rock‐using lizard

Experimental herbivory of native Australian macrophytes by the introduced Mozambique tilapia Oreochromis mossambicus

Resolving the differences in plant burial responses

Patterns and gradients of diversity in South Patagonian ombrotrophic peat bogs

Spatial distribution and prediction of seed production by Eucalyptus microcarpa in a fragmented landscape

Partitioning of temporal activity among desert lizards in relation to prey availability and temperature

Near‐ground solar radiation along the grassland–forest continuum: Tall‐tree canopy architecture imposes only muted trends and heterogeneity

The Ecology of Browsing and Grazing

Corrigendum

Are dingoes a trophic regulator in arid Australia? A comparison of mammal communities on either side of the dingo fence

Ten Commitments, Reshaping the Lucky Country's Environment

Vulnerability of an Australian anuran tadpole assemblage to the toxic eggs of the invasive cane toad (Bufo marinus)

Filter options

Publication date

Volume

Publication language

Keywords

INFONA - science communication portal

Austral Ecology

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Volume

Publication language

Keywords

Reporting an error / abuse

Sending the report failed

Accessibility options