scholarly journals The value of local habitat heterogeneity and productivity when estimating avian species richness and species of concern

Ecosphere ◽  
2020 ◽  
Vol 11 (5) ◽  
Author(s):  
W. Justin Cooper ◽  
William J. McShea ◽  
Tavis Forrester ◽  
David A. Luther
Keyword(s):  
Species Richness ◽  
Habitat Heterogeneity ◽  
Avian Species ◽  
Local Habitat

Guild-specific responses of avian species richness to LiDAR-derived habitat heterogeneity

2014 ◽  
Vol 59 ◽  
pp. 72-83 ◽  
Author(s):  
Peter J. Weisberg ◽  
Thomas E. Dilts ◽  
Miles E. Becker ◽  
Jock S. Young ◽  
Diane C. Wong-Kone ◽  
...  
Keyword(s):  
Species Richness ◽  
Habitat Heterogeneity ◽  
Avian Species

scholarly journals Modelling avian biodiversity using raw, unclassified satellite imagery

2014 ◽  
Vol 369 (1643) ◽  
pp. 20130197 ◽  
Author(s):  
Véronique St-Louis ◽  
Anna M. Pidgeon ◽  
Tobias Kuemmerle ◽  
Ruth Sonnenschein ◽  
Volker C. Radeloff ◽  
...  
Keyword(s):  
Species Richness ◽  
Habitat Heterogeneity ◽  
Bird Species ◽  
Image Texture ◽  
Spectral Mixture Analysis ◽  
Mixture Analysis ◽  
Bird Species Richness ◽  
Habitat Composition ◽  
Avian Biodiversity ◽  
Spectral Mixture

Applications of remote sensing for biodiversity conservation typically rely on image classifications that do not capture variability within coarse land cover classes. Here, we compare two measures derived from unclassified remotely sensed data, a measure of habitat heterogeneity and a measure of habitat composition, for explaining bird species richness and the spatial distribution of 10 species in a semi-arid landscape of New Mexico. We surveyed bird abundance from 1996 to 1998 at 42 plots located in the McGregor Range of Fort Bliss Army Reserve. Normalized Difference Vegetation Index values of two May 1997 Landsat scenes were the basis for among-pixel habitat heterogeneity (image texture), and we used the raw imagery to decompose each pixel into different habitat components (spectral mixture analysis). We used model averaging to relate measures of avian biodiversity to measures of image texture and spectral mixture analysis fractions. Measures of habitat heterogeneity, particularly angular second moment and standard deviation, provide higher explanatory power for bird species richness and the abundance of most species than measures of habitat composition. Using image texture, alone or in combination with other classified imagery-based approaches, for monitoring statuses and trends in biological diversity can greatly improve conservation efforts and habitat management.

scholarly journals Impact of greenspaces in city on avian species richness and abundance in Northern Africa

2017 ◽  
Vol 340 (8) ◽  
pp. 394-400
Author(s):  
Hani Amir Aouissi ◽  
Julien Gasparini ◽  
Adnène Ibrahim Belabed ◽  
Zihad Bouslama
Keyword(s):  
Species Richness ◽  
Northern Africa ◽  
Avian Species ◽  
Species Richness And Abundance

scholarly journals Modeling broad-scale patterns of avian species richness across the Midwestern United States with measures of satellite image texture

2012 ◽  
Vol 118 ◽  
pp. 140-150 ◽  
Author(s):  
Patrick D. Culbert ◽  
Volker C. Radeloff ◽  
Véronique St-Louis ◽  
Curtis H. Flather ◽  
Chadwick D. Rittenhouse ◽  
...  
Keyword(s):  
United States ◽  
Species Richness ◽  
Satellite Image ◽  
Avian Species ◽  
Image Texture ◽  
Midwestern United States ◽  
Broad Scale

The Effects of Winter Temperature and Land Use on Mangrove Avian Species Richness and Abundance on Leizhou Peninsula, China

Wetlands ◽  
2019 ◽  
Vol 40 (1) ◽  
pp. 153-166
Author(s):  
Quan Chen ◽  
Guorui Xu ◽  
Zhifeng Wu ◽  
Peng Kang ◽  
Qian Zhao ◽  
...  
Keyword(s):  
Land Use ◽  
Species Richness ◽  
Winter Temperature ◽  
Avian Species ◽  
Leizhou Peninsula ◽  
Species Richness And Abundance

scholarly journals Changes in small mammal assemblage structure across a rain forest/open forest ecotone

1998 ◽  
Vol 14 (2) ◽  
pp. 187-198 ◽  
Author(s):  
STEPHEN E. WILLIAMS ◽  
HELENE MARSH
Keyword(s):  
Species Richness ◽  
Small Mammal ◽  
Rain Forest ◽  
Habitat Heterogeneity ◽  
Large Change ◽  
Open Forest ◽  
Live Trapping ◽  
Sclerophyll Forest ◽  
World Heritage Area ◽  
Forest Ecotone

The effect of the change in vegetation structure from closed rain forest to tall open forest on the small mammal assemblage was studied by live trapping at three sites where the ecotone was very narrow (> 20 m) near the southern end of the Wet Tropics World Heritage Area of Australia. Habitat heterogeneity was significantly higher in the mixed open forest/ecotone area than in the adjacent rain forest. There was a large change in the struture of the small mammal assemblage coincident with the vegetation discontinuity. Although the species richness of small mammals was relatively constant across the gradient, the evenness and diversity of the assemblage declined across the transition from open forest into rain forest and biomass increased, largely due to the high abundance of Rattus fuscipes in the rain forest. The results suggest that the species richness of the small mammal assemblage was not determined by the spatial heterogeneity of the vegetation struture. The species composition of the rain forest is probably related to the historical biogeography of the area whereas the species richness of the wet sclerophyll forest is probably due to a mass-area effect from the adjcant large areas of rain forest and dry sclerophyll forest. However, the evenness, and therefore the diversity of the assemblage, was strongly affected by habitat heterogeneity.

scholarly journals Food plant diversity as broad-scale determinant of avian frugivore richness

2007 ◽  
Vol 274 (1611) ◽  
pp. 799-808 ◽  
Author(s):  
W. Daniel Kissling ◽  
Carsten Rahbek ◽  
Katrin Böhning-Gaese
Keyword(s):  
Species Richness ◽  
Habitat Heterogeneity ◽  
Spatial Scales ◽  
Fruit Size ◽  
Food Plant ◽  
Sub Saharan Africa ◽  
Food Plants ◽  
Close Relationship ◽  
Avian Frugivores ◽  
Sub Saharan

The causes of variation in animal species richness at large spatial scales are intensively debated. Here, we examine whether the diversity of food plants, contemporary climate and energy, or habitat heterogeneity determine species richness patterns of avian frugivores across sub-Saharan Africa. Path models indicate that species richness of Ficus (their fruits being one of the major food resources for frugivores in the tropics) has the strongest direct effect on richness of avian frugivores, whereas the influences of variables related to water–energy and habitat heterogeneity are mainly indirect. The importance of Ficus richness for richness of avian frugivores diminishes with decreasing specialization of birds on fruit eating, but is retained when accounting for spatial autocorrelation. We suggest that a positive relationship between food plant and frugivore species richness could result from niche assembly mechanisms (e.g. coevolutionary adaptations to fruit size, fruit colour or vertical stratification of fruit presentation) or, alternatively, from stochastic speciation–extinction processes. In any case, the close relationship between species richness of Ficus and avian frugivores suggests that figs are keystone resources for animal consumers, even at continental scales.

scholarly journals Avian Species Richness in Relation to Intensive Forest Management Practices in Early Seral Tree Plantations

PLoS ONE ◽  
2012 ◽  
Vol 7 (8) ◽  
pp. e43290 ◽  
Author(s):  
Jay E. Jones ◽  
Andrew J. Kroll ◽  
Jack Giovanini ◽  
Steven D. Duke ◽  
Tana M. Ellis ◽  
...  
Keyword(s):  
Species Richness ◽  
Forest Management ◽  
Management Practices ◽  
Avian Species ◽  
Tree Plantations ◽  
Forest Management Practices ◽  
Intensive Forest Management
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