Effect of Habitat Patch Characteristics on Abundance and Diversity of Insects in an Agricultural Landscape

Ecosystems ◽  
1998 ◽  
Vol 1 (2) ◽  
pp. 197-205 ◽  
Author(s):  
Lenore Fahrig ◽  
Ian Jonsen
Keyword(s):  
Agricultural Landscape ◽  
Habitat Patch ◽  
Patch Characteristics ◽  
Abundance And Diversity

scholarly journals Local changes in communities of wild bees (Hymenoptera: Apoidea, Apiformes): 30 years later

2014 ◽  
Vol 83 (4) ◽  
pp. 325-351 ◽  
Author(s):  
Józef Banaszak ◽  
Halina Ratyńska
Keyword(s):  
Agricultural Landscape ◽  
Plant Succession ◽  
Permanent Plots ◽  
Wild Bees ◽  
Natural Habitats ◽  
Increasing Trend ◽  
Quantitative Changes ◽  
Abundance And Diversity ◽  
Bee Communities ◽  
Forest Habitats

ABSTRACT Changes in communities of wild bees (Apiformes) were studied in relation to changes in vegetation in six permanent plots (natural forest habitats in the Wielkopolska National Park, and semi-natural habitats in the agricultural landscape near Turew) at the end of four decades (starting from the late 1970s). In 2008-2010, as many as 100 species of Apiformes were recorded there, which is more than reported in earlier decades. The most stable bee communities were those in forest habitats (oak-hornbeam forest, oak forest). Substantial qualitative and quantitative changes in vegetation and bee communities were recorded only after the renaturalisation of a former xerothermic grassland, which had become overgrown with shrubs and trees as a result of plant succession. Human interference (e.g. the felling of some trees growing along a road, clearance of understorey shrubs, ploughing of roadside margins) at selected refuge habitats in the agricultural landscape led to short-term fluctuations in bee abundance and diversity, but an increasing trend in abundance was noted.

scholarly journals Factors Affecting Songbird Nest Survival in Riparian Forests in a Midwestern Agricultural Landscape

The Auk ◽  
2004 ◽  
Vol 121 (3) ◽  
pp. 726-737
Author(s):  
Rebecca G. Peak ◽  
Frank R. Thompson ◽  
Terry L. Shaffer
Keyword(s):  
Agricultural Landscape ◽  
Nest Success ◽  
Riparian Forests ◽  
Breeding Habitat ◽  
Habitat Patch ◽  
Buffer Strips ◽  
Forest Species ◽  
Factors Affecting ◽  
Northern Cardinal ◽  
Gray Catbird

Abstract We investigated factors affecting nest success of songbirds in riparian forest and buffers in northeastern Missouri. We used an information-theoretic approach to determine support for hypotheses concerning effects of nest-site, habitat-patch, edge, and temporal factors on nest success of songbirds in three narrow (55–95 m) and three wide (400–530 m) riparian forests with adjacent grassland-shrub buffer strips and in three narrow and three wide riparian forests without adjacent grassland-shrub buffer strips. We predicted that temporal effects would have the most support and that habitat-patch and edge effects would have little support, because nest predation would be great across all sites in the highly fragmented, predominantly agricultural landscape. Interval nest success was 0.404, 0.227, 0.070, and 0.186, respectively, for Gray Catbird (Dumetella carolinensis), Northern Cardinal (Cardinalis cardinalis), Indigo Bunting (Passerina cyanea), and forest interior species pooled (Acadian Flycatcher [Empidonax virescens], Wood Thrush [Hylocichla mustelina], Ovenbird [Seiurus aurocapillus], and Kentucky Warbler [Oporornis formosus]). The effect of nest stage on nest success had the most support; daily nest success for Gray Catbird and Indigo Bunting were lowest in the laying stage. We found strong support for greater nest success of Gray Catbird in riparian forests with adjacent buffer strips than in riparian forests without adjacent buffer strips. Patch width also occurred in the most-supported model for Gray Catbird, but with very limited support. The null model received the most support for Northern Cardinal. Riparian forests provided breeding habitat for area-sensitive forest species and grassland-shrub nesting species. Buffer strips provided additional breeding habitat for grassland-shrub nesting species. Interval nest success for Indigo Bunting and area-sensitive forest species pooled, however, fell well below the level that is likely necessary to balance juvenile and adult mortality, which suggests that when riparian forests are located within agricultural landscapes, the potential even for wide riparian forests with adjacent buffer strips to provide high-quality breeding habitat is severely diminished for some species.

scholarly journals Importance of Wetland Refugia in Agricultural Landscape Provided Based on the Community Characteristics of Small Terrestrial Mammals

2018 ◽  
Vol 37 (4) ◽  
pp. 358-368
Author(s):  
Michaela Kalivodová ◽  
Róbert Kanka ◽  
Peter Miklós ◽  
Veronika Hulejová Sládkovičová ◽  
Dávid Žiak
Keyword(s):  
Food Webs ◽  
Small Mammals ◽  
Agricultural Landscape ◽  
Clethrionomys Glareolus ◽  
Food Sources ◽  
Negative Consequences ◽  
Terrestrial Mammals ◽  
Living Space ◽  
Abundance And Diversity ◽  
Release Method

AbstractIntensification of agriculture has led, among other negative consequences, also to drying out of wetlands. Nevertheless, some of the wetland biotopes were preserved as small spots. This paper discusses the importance of those areas serving as refugia for small terrestrial mammals. Because small terrestrial mammals in the middle of food webs, they serve as an indicator for the presence of food sources (plants and invertebrates) and suggest the potential of the area as a living space for predators. The experiment took place at lowland agricultural landscape with wetland patches in west and west-east Slovakia (Záhorská and Podunajská nížina lowlands) using catch-mark-release method from 2015 to 2017. The importance was assessed according to abundance, biodiversity, persistence of species during seasons and habitat preference of small terrestrial mammals and equitability of the biotopes. Overall 368 individuals belonging to 12 species were recorded. The lowest abundance and diversity were registered at field biotopes where Apodemus sylvaticus was the most abundant. Microtus arvalis, Clethrionomys glareolus and Sorex araneus dominate at wetland biotopes. The higher biodiversity and abundance of small mammals were recorded at the wetland refugia. The results, together with position of small mammals in food webs, lead to conclusion that the wetland refugia are important habitats for the overall preservation of biodiversity and maintaining them is a part of the strategy for sustainable agriculture.

Seasonal abundance and diversity of native bees in a patchy agricultural landscape in Southern Mexico

2020 ◽  
Vol 292 ◽  
pp. 106807
Author(s):  
Jovani Ruiz-Toledo ◽  
Rémy Vandame ◽  
Patricia Penilla-Navarro ◽  
Jaime Gómez ◽  
Daniel Sánchez
Keyword(s):  
Agricultural Landscape ◽  
Seasonal Abundance ◽  
Native Bees ◽  
Southern Mexico ◽  
Abundance And Diversity

Analysis of gene flow and habitat patch network for Chazara briseis (Lepidoptera: Satyridae) in an agricultural landscape

1997 ◽  
Vol 25 (5) ◽  
pp. 419-427 ◽  
Author(s):  
Jes Johannesen ◽  
Ute Schwing ◽  
Wolfgang Seufert ◽  
Alfred Seitz ◽  
Michael Veith
Keyword(s):  
Gene Flow ◽  
Agricultural Landscape ◽  
Habitat Patch ◽  
Patch Network

scholarly journals Flowers in Conservation Reserve Program (CRP) Pollinator Plantings and the Upper Midwest Agricultural Landscape Supporting Honey Bees

Insects ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 405
Author(s):  
Harper McMinn-Sauder ◽  
Rodney Richardson ◽  
Tyler Eaton ◽  
Mike Smith ◽  
Reed Johnson
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
Agricultural Landscape ◽  
Conservation Reserve Program ◽  
Agricultural Landscapes ◽  
Primary Sources ◽  
Floral Resources ◽  
Pollinator Abundance ◽  
Abundance And Diversity ◽  
Honey Bee Nutrition

A present goal of the Conservation Reserve Program (CRP) is to manage land in agricultural landscapes to increase pollinator abundance and diversity. CP42, or the pollinator seed mix, is planted and managed to support foraging pollinators with blooming flowers present at all points in the foraging season. This high-quality habitat provides an excellent opportunity to study honey bee nutrition and determine whether honey bees located near CRP sites use known resources included in planting seed mixes. This study aims to highlight the primary sources of honey bee forage in the northern Midwest as well as to assess honey bee utilization of the floral resources provided by the pollinator seed mix used for CRP plantings. We received pollen samples collected using pollen traps by beekeepers in Ohio, South Dakota, Indiana, Illinois, and Michigan. Metabarcoding methods were used to identify and quantify pollen collected at different points in the season. The results indicate that honey bees frequently used major mass flowering resources such as Glycine, Trifolium, and Symphiotrichum throughout the season. In addition, flowers included in the CRP pollinator seed mix were used modestly. These results have implications for pollinator seed mix design.

DIVERSITY OF MICROCHIROPTERAN BATS IN FOREST FRAGMENTS AND RIPARIAN ZONES IN AN OIL PALM PLANTATION ESTATE

SIMBIOSA ◽  
2014 ◽  
Vol 3 (1) ◽  
Author(s):  
Fauziah Syamsi
Keyword(s):  
Oil Palm ◽  
Riparian Zones ◽  
Habitat Patch ◽  
Forest Fragments ◽  
Oil Palm Plantation

Kelapa sawit merupakan salah satu tanaman meningkat paling pesat di dunia, dan mencakup lebih dari 13 juta ha di Asia Tenggara. Sumatera memiliki sejarah yang relatif panjang budidaya kelapa sawit komersial, dan banyak perkebunan telah menggantikan hutan hujan. Biasanya ini perkebunan monokultur mendukung spesies lebih sedikit daripada hutan, namun ada sangat sedikit informasi yang tersedia untuk kelelawar. Kami mencicipi kelelawar pemakan serangga di Sumatera Barat dalam perkebunan kelapa sawit matang di mana beberapa tutupan hutan dipertahankan di fragmen hutan di bukit-bukit dan di sepanjang sungai. Menggunakan total 180 kecapi perangkap malam kami dibandingkan dengan komunitas kelelawar dalam tiga jenis habitat: patch hutan, zona riparian dan perkebunan. Total kami ditangkap 1108 kelelawar yang mewakili 21 spesies dan 5 keluarga, dan mayoritas ini (dalam hal spesies dan kelimpahan) ditemukan di fragmen hutan. perkebunan kelapa sawit ditemukan menjadi habitat miskin untuk kelelawar - hanya empat orang dari dua spesies ditangkap. daerah pinggiran sungai didukung keanekaragaman menengah, dan mungkin penting sebagai koridor satwa liar antara fragmen hutan. Kata kunci : Biodiversitas, keleawar Microchiropteran

Sign in / Sign up

Export Citation Format

Share Document