scholarly journals Habitat filtering drives the local distribution of congeneric species in a Brazilian white‐sand flooded tropical forest

2021 ◽  
Vol 11 (4) ◽  
pp. 1797-1813
Author(s):  
Kelly F. O. Ribeiro ◽  
Valéria F. Martins ◽  
Thorsten Wiegand ◽  
Flavio A. M. Santos
Keyword(s):  
Tropical Forest ◽  
Congeneric Species ◽  
Local Distribution ◽  
Habitat Filtering ◽  
White Sand

Flesh flies (Diptera: Sarcophagidae) from a white-sand habitat in the Brazilian Amazon, with the description of four new species

Zootaxa ◽  
2018 ◽  
Vol 4504 (3) ◽  
pp. 401
Author(s):  
FERNANDO DA SILVA CARVALHO-FILHO ◽  
INOCÊNCIO DE SOUSA GORAYEB ◽  
JÉSSICA MARIA MENEZES SOARES ◽  
MATHEUS TAVARES DE SOUZA
Keyword(s):  
New Species ◽  
Tropical Forest ◽  
Amazon Basin ◽  
Vegetation Type ◽  
Brazilian Amazon ◽  
Insect Fauna ◽  
Flesh Fly ◽  
Small Areas ◽  
White Sand ◽  
Flesh Flies

The white-sand enclaves in the Amazon Basin are small areas scattered through the tropical forest, with sandy and nutrient-poor soils and an unusual vegetation type. The insect fauna of this ecosystem is poorly known, especially in the eastern Amazon. The flesh fly fauna of an area of open herbaceous white-sand vegetation known as “Campo Redondo” in the municipality of Cametá, state of Pará, was surveyed, resulting in the discovery of 43 species in 11 genera representing the subfamilies Sarcophaginae and Miltogramminae. Four new species are described: Dexosarcophaga (Dexosarcophaga) campina sp. nov., Helicobia cametaensis sp. nov., Helicobia domquixote sp. nov., and Metopia fofo sp. nov. Lepidodexia (Lepidodexia) grisea Lopes and Lepidodexia (Notochaeta) setifrons (Lopes) are newly recorded from Brazil. Dexosarcophaga (Bezzisca) ampullula (Engel), D. (Dexosarcophaga) transita Townsend and Titanogrypa (Cucullomyia) larvicida (Lopes) are newly recorded from the Brazilian Amazon. 

scholarly journals Habitat filtering across tree life stages in tropical forest communities

2013 ◽  
Vol 280 (1766) ◽  
pp. 20130548 ◽  
Author(s):  
C. A. Baldeck ◽  
K. E. Harms ◽  
J. B. Yavitt ◽  
R. John ◽  
B. L. Turner ◽  
...  
Keyword(s):  
Community Structure ◽  
Tropical Forest ◽  
Sample Size ◽  
Habitat Heterogeneity ◽  
Habitat Associations ◽  
Tropical Tree ◽  
Life Stages ◽  
Habitat Filtering ◽  
Adult Trees ◽  
Tree Communities

Tropical tree communities are shaped by local-scale habitat heterogeneity in the form of topographic and edaphic variation, but the life-history stage at which habitat associations develop remains poorly understood. This is due, in part, to the fact that previous studies have not accounted for the widely disparate sample sizes (number of stems) that result when trees are divided into size classes. We demonstrate that the observed habitat structuring of a community is directly related to the number of individuals in the community. We then compare the relative importance of habitat heterogeneity to tree community structure for saplings, juveniles and adult trees within seven large (24–50 ha) tropical forest dynamics plots while controlling for sample size. Changes in habitat structuring through tree life stages were small and inconsistent among life stages and study sites. Where found, these differences were an order of magnitude smaller than the findings of previous studies that did not control for sample size. Moreover, community structure and composition were very similar among tree sub-communities of different life stages. We conclude that the structure of these tropical tree communities is established by the time trees are large enough to be included in the census (1 cm diameter at breast height), which indicates that habitat filtering occurs during earlier life stages.

Seedling performance trade-offs influencing habitat filtering along a soil nutrient gradient in a tropical forest

Ecology ◽  
2014 ◽  
Vol 95 (12) ◽  
pp. 3399-3413 ◽  
Author(s):  
Kelly M. Andersen ◽  
Benjamin L. Turner ◽  
James W. Dalling
Keyword(s):  
Tropical Forest ◽  
Soil Nutrient ◽  
Habitat Filtering ◽  
Seedling Performance ◽  
Nutrient Gradient ◽  
Trade Offs
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