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DOI | 10.1051/limn/2015004 |
Is the diet of a typical shredder related to the physical habitat of headwater streams in the Brazilian Cerrado? | |
Ferreira, Wander R.1; Ligeiro, Raphael1; Macedo, Diego R.1,2; Hughes, Robert M.3,4; Kaufmann, Philip R.5; Oliveira, Leandro G.6; Callisto, Marcos1 | |
发表日期 | 2015 |
ISSN | 0003-4088 |
卷号 | 51期号:2页码:115-124 |
英文摘要 | Macroinvertebrates are important for processing leaf detritus in temperate streams, but studies about their role in tropical streams often present conflicting results. Via digestive tract analyses, we assessed the diets of Phylloicus sp. larvae (Trichoptera: Calamoceratidae), collected from streams of two southeastern Brazil river basins (Araguari, Sao Francisco). We classified gut contents as coarse particulate organic matter (CPOM), fine particulate organic matter (FPOM), algae, animal tissue, vascular plant tissue and mineral material. We hypothesized that the diets of Phylloicus larvae would be related to the physical habitat of the streams (e.g., riparian vegetation, organic matter availability and morphological characteristics), larval size and river basin. Although FPOM content predominated in both basins, we found greater CPOM content in Phylloicus larvae of Upper Sao Francisco sites, and this food item was related to greater riparian vegetation canopy density. The FPOM content was greater in larvae of Upper Araguari sites, and this food item was correlated with greater instream brush cover. Algae, animal tissue, vascular plant tissue and mineral material were very rare in the digestive tracts, and therefore could not be explained. These results indicate the importance of riparian vegetation structure in modulating feeding habitats of macroinvertebrates. We conclude that the Phylloicus larvae had more flexibility in what they eat than we might expect based on their traditional classification as shredders. Therefore, trusting in published classifications, ignoring regional or local differences, may be inaccurate. Instead, regional studies of feeding habits are needed for accurate classifications of invertebrate taxa into trophic guilds. |
英文关键词 | Gut contents;aquatic macroinvertebrates;trophic guilds;tropical streams;stream habitat conservation |
语种 | 英语 |
WOS记录号 | WOS:000355561500003 |
来源期刊 | ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/60508 |
作者单位 | 1.Univ Fed Minas Gerais, Inst Ciencias Biol, Dept Biol Geral, Lab Ecol Bentos, BR-31270901 Belo Horizonte, MG, Brazil; 2.Inst Brasileiro Geog & Estat, BR-30310150 Belo Horizonte, MG, Brazil; 3.Oregon State Univ, Amnis Opes Inst, Corvallis, OR 97331 USA; 4.Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA; 5.US EPA, Off Res & Dev, Natl Hlth & Environm Effects Lab, Western Ecol Div, Corvallis, OR 97333 USA; 6.Univ Fed Goias, Inst Ciencias Biol, Dept Ecol, BR-74001970 Goiania, Go, Brazil |
推荐引用方式 GB/T 7714 | Ferreira, Wander R.,Ligeiro, Raphael,Macedo, Diego R.,et al. Is the diet of a typical shredder related to the physical habitat of headwater streams in the Brazilian Cerrado?[J]. 美国环保署,2015,51(2):115-124. |
APA | Ferreira, Wander R..,Ligeiro, Raphael.,Macedo, Diego R..,Hughes, Robert M..,Kaufmann, Philip R..,...&Callisto, Marcos.(2015).Is the diet of a typical shredder related to the physical habitat of headwater streams in the Brazilian Cerrado?.ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY,51(2),115-124. |
MLA | Ferreira, Wander R.,et al."Is the diet of a typical shredder related to the physical habitat of headwater streams in the Brazilian Cerrado?".ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY 51.2(2015):115-124. |
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