Low oxygen pressure as a driving factor for the altitudinal decline in taxon richness of stream macroinvertebrates

  title={Low oxygen pressure as a driving factor for the altitudinal decline in taxon richness of stream macroinvertebrates},
  author={Dean Jacobsen},
  • D. Jacobsen
  • Published 2007
  • Environmental Science
  • Oecologia
The objective of this study was to explore the altitudinal decrease in local richness of stream macroinvertebrates. I compared the explicatory power of a mid-domain effect (MDE) null model and a number of selected contemporary ecological variables, with a special emphasis on the altitude-mediated decrease in temperature and oxygen availability as possible driving factors for the observed pattern. Benthic macroinvertebrates were sampled at 30 stream sites between 2,600 and 4,000 m a.s.l. in… 
Effects of altitudinal gradient on benthic macroinvertebrate assemblages in two hydrological periods in a Neotropical Andean river
The results showed that altitude is the main driver of variation in taxa composition; however, more studies must be carried out to understand what factors are essential in organism’s distribution and how they operate in Andean lotic ecosystems.
Environmental harshness and global richness patterns in glacier-fed streams
The number of taxa able to cope with the harshest conditions was largely independent of the regional taxon pool, and environmental harshness constituted a ‘fixed’ constraint for local richness, irrespective of latitude and elevation.
Oxygen is a better predictor of macroinvertebrate richness than temperature—a systematic review
Despite ongoing loss of diversity in freshwater ecosystems, and despite mitigation measures to halt this loss, it is still not clear what ecological drivers underlies lotic biodiversity. A
Metals and altitude drive genetic diversity of chironomids in Andean streams
It is concluded that altitude limits the distribution of chironomid taxa, but metal selection leads to predominance of a unique metal-tolerant taxon.
Does diel variation in oxygen influence taxonomic and functional diversity of stream macroinvertebrates?
The results show that prolonged exposure to low DDO selects against oxygen-sensitive species and, thus, influences trait composition in macroinvertebrate assemblages, and the shared explained variance associated with DDO was greater when partitioning variance in assemblage trait structure than taxonomic structure.
Factors determining beetle richness and composition along an altitudinal gradient in the high mountains of the Sierra Nevada National Park (Spain)
Abstract One of the more common and dramatic patterns observed in species abundance and richness is that imposed by altitude. Many non-exclusive factors have been proposed to explain these
Longitudinal changes in stream invertebrate assemblages of Grand Teton National Park, Wyoming
High elevation ecosystems are predicted to be strongly impacted by climate change; however, little is known of extant biodiversity in mountain streams. For this study, five streams in Grand Teton
Elevation and land use as drivers of macroinvertebrate functional composition in Afromontane headwater streams
Macroinvertebrates play a unique role in aquatic ecosystems by acting as processors of nutrients and organic energy from allochthonous and autochthonous sources. Within East Africa, and especially
The Rapoport effect is detected in a river system and is based on nested organization
Nestedness analysis has revealed that the observed Rapoport effect is based on nested organization of the meta-assemblage over the river altitudinal/longitudinal gradient: a common species pool at low (but not the lowest) altitudes and nested subsets of this pool at higher altitudes, indicating that the Rapoports effect in altitudinal and bathymetric gradients in general may be based on nests.
Drivers of Benthic Macroinvertebrate Assemblages in Equatorial Alpine Rivers of the Rwenzoris (Uganda)
The Sub-Saharan alpine freshwater biodiversity is currently impacted by human settlements, climate change, agriculture, and mining activities. Because of the limited biodiversity studies in the


Structure and diversity of stream invertebrate assemblages : the influence of temperature with altitude and latitude
1. Structure and diversity of the macroinvertebrate fauna were studied in relation to altitude and latitude among three groups of streams from Ecuador (lowland: 100–600 m, Central Valley: 2600–3100
Are macroinvertebrates in high altitude streams affected by oxygen deficiency
Summary 1. The solubility of oxygen in water increases with decreasing temperature. This has led to a general perception of cold, high mountain streams as more oxygen rich than warmer lowland
Altitudinal changes in diversity of macroinvertebrates from small streams in the Ecuadorian Andes
Altitudinal patterns in diversity of macroinvertebrate families at different spatial scales (stone, stream and altitude) were studied by collecting stone samples from six streams at each of the three
Contrasting patterns in local and zonal family richness of stream invertebrates along an Andean altitudinal gradient
Summary 1. Describing and understanding patterns in biological diversity along major geographical gradients is an important topic in ecology. Samples collected from a large number of physically
The role of environment and mid-domain effect on moth species richness along a tropical elevational gradient
The results clearly show that moth diversity shows a hump-shaped pattern, however, remarkable variation exists with regard to taxon and range size, and both environmental and geometric factors are likely to contribute to the observed patterns.
Effect of low dissolved oxygen on survival, emergence, and drift of tropical stream macroinvertebrates
The lack of a drift response at DO concentrations of 25 to 35% and 10 to 20% saturation indicates that, in moderately poor oxygen conditions, macroinvertebrates will remain at a location and, hence, experience sublethal effects such as suppressed emergence.
Macroinvertebrate communities of streams in western Nepal: effects of altitude and land use
SUMMARY 1. The influence of altitude and land-use changes on macroinvertebrate assemblages from riffles in forty-three streams in the Dolpo region of western Nepal were examined. Sampling sites
The elevational gradient in Andean bird species richness at the local scale: a foothill peak and a high‐elevation plateau
A monotonic decline in species richness with increasing elevation has often been considered a general pattern, but recent evidence suggests that the dominant pattern is hump-shaped with maximum
Could temperature and water availability drive elevational species richness patterns? A global case study for bats
Aim A global meta-analysis was used to elucidate a mechanistic understanding of elevational species richness patterns of bats by examining both regional and local climatic factors, spatial
Respiration Rate of Stream Insects Measured in situ Along a Large Altitude Range
The weak community-wide response of respiration to temperature in tropical streams is probably due to full acclimatization of the component species to stable and narrow temperature ranges.