scholarly journals Effects of Holocene climate changes on alpine ecosystems: Nonequilibrium dynamics drive insect species richness on alpine islands

2019 ◽  
Vol 46 (10) ◽  
pp. 2248-2259 ◽  
Author(s):  
Silvio Marta ◽  
Federica Lacasella ◽  
Donatella Cesaroni ◽  
Valerio Sbordoni
Keyword(s):  
Species Richness ◽  
Climate Changes ◽  
Insect Species ◽  
Nonequilibrium Dynamics ◽  
Alpine Ecosystems ◽  
Holocene Climate ◽  
Insect Species Richness

Gall-Inducing Insect Species Richness as Indicators of Forest Age and Health

2010 ◽  
Vol 39 (4) ◽  
pp. 1134-1140 ◽  
Author(s):  
G. Wilson Fernandes ◽  
Emmanuel D. Almada ◽  
Marco Antonio A. Carneiro
Keyword(s):  
Species Richness ◽  
Insect Species ◽  
Forest Age ◽  
Insect Species Richness

Island biogeography of insect conservation in urban green spaces

2017 ◽  
Vol 45 (1) ◽  
pp. 1-10 ◽  
Author(s):  
SIMONE FATTORINI ◽  
CRISTINA MANTONI ◽  
LIVIA DE SIMONI ◽  
DIANA M.P. GALASSI
Keyword(s):  
Species Richness ◽  
Island Biogeography ◽  
Extinction Risk ◽  
Strong Support ◽  
Insect Conservation ◽  
Green Spaces ◽  
Insect Species ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Insect Species Richness

SUMMARYBecause of their isolation, biotic communities of urban green spaces are expected to be similar to those of oceanic islands. This should be particularly true for insects, which represent an important component of urban faunas. The equilibrium theory of island biogeography (ETIB) allows for the formulation of some hypotheses regarding the influence of the geographical characteristics of green spaces on insect species richness and extinction risk. Based on island biogeography principles, we present eight predictions on how green space characteristics should influence insect species richness and loss. We analysed the current literature in order to determine which predictions were supported and which were not. We found that many studies gave outcomes that support ETIB predictions about the effects of area and isolation of green spaces; we found no strong support for predictions about shape and extent of native habitat in the literature that we reviewed. Most of the available studies dealt with patterns in species richness, whereas insect species loss has been rarely investigated. Future developments in the application of island biogeography principles to urban insect conservation should address temporal trends in species persistence and the analysis of species co-occurrence and nestedness.

scholarly journals Correlation between some landscape metrics and insect species richness in coffee agroforests in Pangalengan Subdistrict, Bandung District, West Java, Indonesia

2019 ◽  
Vol 20 (10) ◽  
Author(s):  
SUSANTI WITHANINGSIH ◽  
Parikesit ◽  
MUHAMMAD BURHANUDDIN RABBANY
Keyword(s):  
Species Richness ◽  
Negative Correlation ◽  
Landscape Metrics ◽  
Landscape Heterogeneity ◽  
Insect Species ◽  
Insect Community ◽  
West Java ◽  
Strong Negative Correlation ◽  
Landscape Characteristics ◽  
Insect Species Richness

Abstract. Withaningsih S, Parikesit, Rabbany MB. 2019. Correlation between some landscape metrics and insect species richness in coffee agroforests in Pangalengan Subdistrict, Bandung District, West Java, Indonesia. Biodiversitas 20: 3075-3085. The insect community provides valuable ecosystem services and can help maintain ecosystem integrity in human-altered landscapes such as coffee agroforests. The aim of this study was to assess the landscape characteristics of coffee agroforests in the Pangalengan Subdistrict and analyze how those characteristics influence the insect communities. Landscape metric approaches were examined to quantify landscape characteristics and the results analyzed using correspondence analysis to determine variation among samples, and simple linear regression testing was used to determine the influence of those landscape characteristics on the insect community. Seventeen sample locations varied in characteristics based on the proportion of the land cover classes, and landscape characteristics determined the number of insect species. The number of insect species showed strong negative correlation with landscape heterogeneity (R2=0.456) and number of patches (R2=0.514) and a weak positive response to the proportion of natural forest remaining (R2=0.150). Number of insect species showed a strong negative correlation to landscape heterogeneity, number of patches, and number of natural forest remaining simultaneously (R2=0.514).

Assessing Insect Species-richness at a Single Site

1990 ◽  
Vol 17 (4) ◽  
pp. 362-364 ◽  
Author(s):  
Denis F. Owen ◽  
Jennifer Owen
Keyword(s):  
Species Richness ◽  
Single Site ◽  
Insect Species ◽  
Insect Species Richness
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