Aquatic macrophytes in cool aseasonal and seasonal streams: a comparison between Ecuadorian highland and Danish lowland streams

Dean Jacobsen; Esteban Terneus

doi:10.1016/S0304-3770(01)00189-9

Aquatic macrophytes in cool aseasonal and seasonal streams: a comparison between Ecuadorian highland and Danish lowland streams

Dean Jacobsen, Esteban Terneus

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

25 Citationer (Scopus)

Abstract

Udgivelsesdato: December 2001

Originalsprog	Engelsk
Tidsskrift	Aquatic Botany
Vol/bind	71
Udgave nummer	4
Sider (fra-til)	281-295
ISSN	0304-3770
DOI	https://doi.org/10.1016/S0304-3770(01)00189-9
Status	Udgivet - 2001

Bibliografisk note

Author Keywords: Macrophytes; Species richness; Streams; Páramo; Ecuador

Adgang til dokumentet

10.1016/S0304-3770(01)00189-9

Citationsformater

@article{18c8efd074c611dbbee902004c4f4f50,

title = "Aquatic macrophytes in cool aseasonal and seasonal streams: a comparison between Ecuadorian highland and Danish lowland streams",

abstract = "The diversity and community structure of aquatic macrophytes in aseasonal streams cool by altitude and seasonal streams cool by latitude was compared using a standardised approach. The aquatic vegetation in 12 small highland streams in the Ecuadorian Andes (3400–4100 m) and in 12 physically and chemically similar lowland streams in Denmark was examined. Our study confirmed that aquatic macrophyte communities in the neotropics are not particularly species rich. Total as well as mean species richness per stream were about the same in the two regions. The species richness within different life-forms (submerged, amphibious, semiaquatic) was, however, different as submerged plants were less diverse in the Ecuadorian streams. Further, all submerged plants found in the Ecuadorian streams belonged to cosmopolitan genera with a mainly north-temperate distribution. We suggest that the low number of submerged species in the Ecuadorian streams (four species) compared to the Danish streams (12 species) may be due to the relatively small land area and age of the high Andes, probably limiting speciation, and a low immigration of species from temperate lowlands and especially from neotropical lowlands.",

author = "Dean Jacobsen and Esteban Terneus",

note = "Author Keywords: Macrophytes; Species richness; Streams; P{\'a}ramo; Ecuador",

year = "2001",

doi = "10.1016/S0304-3770(01)00189-9",

language = "English",

volume = "71",

pages = "281--295",

journal = "Aquatic Botany",

issn = "0304-3770",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Aquatic macrophytes in cool aseasonal and seasonal streams: a comparison between Ecuadorian highland and Danish lowland streams

AU - Jacobsen, Dean

AU - Terneus, Esteban

N1 - Author Keywords: Macrophytes; Species richness; Streams; Páramo; Ecuador

PY - 2001

Y1 - 2001

N2 - The diversity and community structure of aquatic macrophytes in aseasonal streams cool by altitude and seasonal streams cool by latitude was compared using a standardised approach. The aquatic vegetation in 12 small highland streams in the Ecuadorian Andes (3400–4100 m) and in 12 physically and chemically similar lowland streams in Denmark was examined. Our study confirmed that aquatic macrophyte communities in the neotropics are not particularly species rich. Total as well as mean species richness per stream were about the same in the two regions. The species richness within different life-forms (submerged, amphibious, semiaquatic) was, however, different as submerged plants were less diverse in the Ecuadorian streams. Further, all submerged plants found in the Ecuadorian streams belonged to cosmopolitan genera with a mainly north-temperate distribution. We suggest that the low number of submerged species in the Ecuadorian streams (four species) compared to the Danish streams (12 species) may be due to the relatively small land area and age of the high Andes, probably limiting speciation, and a low immigration of species from temperate lowlands and especially from neotropical lowlands.

AB - The diversity and community structure of aquatic macrophytes in aseasonal streams cool by altitude and seasonal streams cool by latitude was compared using a standardised approach. The aquatic vegetation in 12 small highland streams in the Ecuadorian Andes (3400–4100 m) and in 12 physically and chemically similar lowland streams in Denmark was examined. Our study confirmed that aquatic macrophyte communities in the neotropics are not particularly species rich. Total as well as mean species richness per stream were about the same in the two regions. The species richness within different life-forms (submerged, amphibious, semiaquatic) was, however, different as submerged plants were less diverse in the Ecuadorian streams. Further, all submerged plants found in the Ecuadorian streams belonged to cosmopolitan genera with a mainly north-temperate distribution. We suggest that the low number of submerged species in the Ecuadorian streams (four species) compared to the Danish streams (12 species) may be due to the relatively small land area and age of the high Andes, probably limiting speciation, and a low immigration of species from temperate lowlands and especially from neotropical lowlands.

U2 - 10.1016/S0304-3770(01)00189-9

DO - 10.1016/S0304-3770(01)00189-9

M3 - Journal article

SN - 0304-3770

VL - 71

SP - 281

EP - 295

JO - Aquatic Botany

JF - Aquatic Botany

IS - 4

ER -