Dispersal ability determines the genetic effects of habitat fragmentation in three species of aquatic insect

2010 ◽  
Vol 20 (5) ◽  
pp. 574-579 ◽  
Author(s):  
Kozo Watanabe ◽  
Michael T. Monaghan ◽  
Yasuhiro Takemon ◽  
Tatsuo Omura
Keyword(s):  
Habitat Fragmentation ◽  
Aquatic Insect ◽  
Genetic Effects ◽  
Dispersal Ability

Spatial and seasonal variability of emergent aquatic insects and nearshore spiders in a subtropical estuary

2019 ◽  
Vol 70 (4) ◽  
pp. 541 ◽  
Author(s):  
Martha J. Zapata ◽  
S. Mažeika P. Sullivan
Keyword(s):  
Aquatic Insects ◽  
High Salinity ◽  
Aquatic Insect ◽  
Freshwater Ecosystems ◽  
Dispersal Ability ◽  
Insect Community ◽  
Insect Communities ◽  
Low Salinity ◽  
Subtropical Estuary ◽  
Adult Aquatic Insects

Variability in the density and distribution of adult aquatic insects is an important factor mediating aquatic-to-terrestrial nutritional subsidies in freshwater ecosystems, yet less is understood about insect-facilitated subsidy dynamics in estuaries. We surveyed emergent (i.e. adult) aquatic insects and nearshore orb-weaving spiders of the families Tetragnathidae and Araneidae in a subtropical estuary of Florida (USA). Emergent insect community composition varied seasonally and spatially; densities were lower at high- than low-salinity sites. At high-salinity sites, emergent insects exhibited lower dispersal ability and a higher prevalence of univoltinism than low- and mid-salinity assemblages. Orb-weaving spider density most strongly tracked emergent insect density rates at low- and mid-salinity sites. Tetragnatha body condition was 96% higher at high-salinity sites than at low-salinity sites. Our findings contribute to our understanding of aquatic insect communities in estuarine ecosystems and indicate that aquatic insects may provide important nutritional subsidies to riparian consumers despite their depressed abundance and diversity compared with freshwater ecosystems.

scholarly journals Genetic effects of anthropogenic habitat fragmentation on remnant animal and plant populations: a meta-analysis

Ecosphere ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. e02488 ◽  
Author(s):  
Daniel R. Schlaepfer ◽  
Brigitte Braschler ◽  
Hans-Peter Rusterholz ◽  
Bruno Baur
Keyword(s):  
Habitat Fragmentation ◽  
Meta Analysis ◽  
Genetic Effects ◽  
Plant Populations ◽  
Anthropogenic Habitat

Genetic effects of chronic habitat fragmentation revisited: Strong genetic structure in a temperate tree, Taxus baccata (Taxaceae), with great dispersal capability

2010 ◽  
Vol 97 (2) ◽  
pp. 303-310 ◽  
Author(s):  
Marta Dubreuil ◽  
Miquel Riba ◽  
Santiago C. González-Martínez ◽  
Giovanni G. Vendramin ◽  
Federico Sebastiani ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Habitat Fragmentation ◽  
Genetic Effects ◽  
Taxus Baccata ◽  
Dispersal Capability

Genetic effects of habitat fragmentation and population isolation on Etheostoma raneyi (Percidae)

2012 ◽  
Vol 13 (3) ◽  
pp. 859-872 ◽  
Author(s):  
Ken A. Sterling ◽  
David H. Reed ◽  
Brice P. Noonan ◽  
Melvin L. Warren
Keyword(s):  
Habitat Fragmentation ◽  
Genetic Effects ◽  
Population Isolation
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