Trophic Interactions and the Relationship between Species Diversity and Ecosystem Stability

To predict the consequences of environmental change on the biodiversity of alpine wetlands, it is necessary to understand the relationship between soil properties and vegetation biodiversity. In this study, we investigated spatial patterns of aboveground vegetation biomass, cover, species diversity, and their relationships with soil properties in the alpine wetlands of the Gannan Tibetan Autonomous Prefecture of on the Qinghai-Tibetan Plateau, China. Furthermore, the relative contribution of soil properties to vegetation biomass, cover, and species diversity were compared using principal component analysis and multiple regression analysis. Generally, the relationship between plant biomass, coverage, diversity, and soil nutrients was linear or unimodal. Soil pH, bulk density and organic carbon were also significantly correlated to plant diversity. The soil attributes differed in their relative contribution to changes in plant productivity and diversity. pH had the highest contribution to vegetation biomass and species richness, while total nitrogen was the highest contributor to vegetation cover and nitrogen–phosphorus ratio (N:P) was the highest contributor to diversity. Both vegetation productivity and diversity were closely related to soil properties, and soil pH and the N:P ratio play particularly important roles in wetland vegetation biomass, cover, and diversity.

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The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland

Journal of Arid Environments ◽

10.1016/j.jaridenv.2021.104632 ◽

2021 ◽

Vol 195 ◽

pp. 104632

Author(s):

Guy Dovrat ◽

Ehud Meron ◽

Moshe Shachak ◽

Yosef Moshe ◽

Yagil Osem

Keyword(s):

Species Diversity ◽

Functional Diversity ◽

The Relationship ◽

Semi Arid ◽

Arid Rangeland

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KEANEKARAGAMAN JENIS SEMUT (Formicidae) ARBOREAL DI HUTAN MANGROVE KELURAHAN SETAPUK BESAR KOTA SINGKAWANG

JURNAL HUTAN LESTARI ◽

10.26418/jhl.v7i3.35531 ◽

2019 ◽

Vol 7 (3) ◽

Author(s):

. Mazlan ◽

Siti Masitoh Kartikawati ◽

. Burhanuddin

Keyword(s):

Species Diversity ◽

Mangrove Forest ◽

Diversity Index ◽

Survey Method ◽

Ecosystem Stability ◽

Tidal Level ◽

Arboreal Ants ◽

Nypa Fruticans ◽

A Chain ◽

Gathering Data

Arboreal ants are ants that do activities and spend their lives in tree. Roles of this organism are to serve as decomposers, pollinators, predators and indicators. Ant species diversity constitutes a chain for ecosystem stability. They are responsible as decomposing insects making their presence becomes ecologically vital. Research on ant species diversity in mangrove forest remains insufficient. One of the reasons possibly is that fact that mangrove is an ecosystem which is affected by sea tide. This research aims at gathering data about ant species diversity based on types of mangrove forest vegetation located in Setapuk Besar, Singkawang City. The research used a survey method by observing types of trees whose diameter was 10 cm and above. Additionally, the tree should have a large number of ants. The data was collected through fly sheet trap set under, in the mid, and above the tidal level. Findings revealed 6 types of ants consisting 4 sub-families in 6 types of the trees i.e. Rhizopora mucronata, Avicennia lanata, Hibiscus tiliaceus, Terminalia capatta, Nypa fruticans, and Bruguiera cylindrical.. Based on the diversity index of those 6 types of trees, the divercity of arboreal ants spesies could be categorized low (H’<1). The highest diversity was nypa fruticans vegetation by 0.325. This was because the tree contains sugar level and carbohydrate. The lowest diversity was Hibiscus tiliaceus and Termialia catappa. The H’ value was 0. One of the reasons was because only one species of ants can be found in both trees, namely Oecophylla smaragdina.Keywords: Arboreal Ants, Diversity, Mangrove, Singkawang

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SUSTAINABILITY OF ANIMALS IN SUSTAINABILITY OF ECOSYSTEMS (REVIEW)

Ecology and Animal World ◽

10.47612/2224-1647-2021-1-8-15 ◽

2021 ◽

pp. 8-15

Author(s):

S. V. Poloz ◽

I. I. Strelchenya

Keyword(s):

Open Access ◽

Literature Review ◽

Ecosystem Stability ◽

Biotic Factors ◽

Natural Habitats ◽

Abiotic And Biotic Factors ◽

The Relationship

An analysis of the literature review available in the open access has determined the relevance of studying the resistance of animals in natural habitats and zooculture as marker of ecosystem stability. This article provides a variety of methods for determining and the versatility of assessing animal resistance, which requires the development of ap-proaches that can help to solve this problem comprehensively. It is shown that it is necessary to study the processes of formation of animal resistance and to establish the relationship between resistance, sustainability and tolerance and the reasons (conditions, abiotic and biotic factors) that change their characteristics.

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Biodiversity, Distributions, and Extinction

Ecology of Climate Change ◽

10.23943/princeton/9780691148472.003.0007 ◽

2013 ◽

Author(s):

Eric Post

Keyword(s):

Climate Change ◽

Species Diversity ◽

Time Scales ◽

Upper And Lower Bounds ◽

Ecosystem Goods And Services ◽

Goods And Services ◽

Local Diversity ◽

Rapid Climate Change ◽

The Subject ◽

The Relationship

This chapter examines the relationship between species diversity and ecosystem function and stability. This subject is currently one of the most intensely studied topics in ecology. It is also of paramount importance in the study of the ecological consequences of climate change, most probably because of its obvious relevance to ecosystem goods and services. More classically, however, the subject of biodiversity response to climate change relates to what factors set limits to the upper and lower bounds of species diversity and how those factors might be altered by rapid climate change. Of the two processes generating diversity—speciation and immigration—the latter obviously operates at shorter time scales and is likely to respond more immediately to climate change. Of the processes reducing local diversity—extinction and emigration—the latter is, again, likely to operate at shorter time scales, but both processes are likely to be influenced by climate change, although at potentially different timescales.

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Sprouting, succession and tree species diversity in a South African coastal dune forest

Journal of Tropical Ecology ◽

10.1017/s0266467410000659 ◽

2011 ◽

Vol 27 (2) ◽

pp. 195-203 ◽

Cited By ~ 5

Author(s):

Emmanuel Fred Nzunda

Keyword(s):

Species Diversity ◽

South African ◽

Coastal Dune ◽

Regeneration Pattern ◽

Disturbance Frequency ◽

Structural Variables ◽

Chronic Disturbance ◽

Diameter Frequency Distribution ◽

Shifting Cultivators ◽

The Relationship

Abstract:Sprouting may play a significant role in maintenance of plant diversity where prevailing disturbance frequency and severity allows. When disturbance frequency and severity decrease, strong sprouters may be outcompeted. As a result, species composition and diversity may change. This study was carried out to investigate the relationship between sprouting, succession and species diversity in a coastal dune forest that currently suffers from low-severity, chronic disturbance due to sea winds and loose sand substrate. Historically, the site was occupied by shifting cultivators who left the site about 80 y ago. Data on trees that were at least 1.3 m tall from 42 sample plots measuring 20 × 20 m were used. The plots were ranked in order of advancement of succession using the first axis of Principal Components Analysis of forest structural variables. Regeneration pattern was examined using analysis of stem diameter frequency distribution. Abundance and regeneration of strong basal sprouters, incidence of basal sprouting and species diversity decreased with advancement of succession. Only a few species could regenerate under the canopy of late-successional sites. Basal sprouts decreased with advancement of succession whereas trunk sprouts increased. These results suggest that maintenance of high species diversity may need a level of disturbance that allows regeneration and maintenance of strong basal sprouters.

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On the Relationship between Plant Species Diversity and Biomass: A Comment on a Paper by Gough, Grace and Taylor

Oikos ◽

10.2307/3546258 ◽

1996 ◽

Vol 75 (2) ◽

pp. 323 ◽

Cited By ~ 16

Author(s):

R. H. Marrs ◽

J. B. Grace ◽

L. Gough

Keyword(s):

Species Diversity ◽

Plant Species ◽

Plant Species Diversity ◽

The Relationship

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Plant Species Diversity Mediates Ecosystem Stability of Natural Dune Grasslands in Response to Drought

Ecosystems ◽

10.1007/s10021-015-9905-6 ◽

2015 ◽

Vol 18 (8) ◽

pp. 1383-1394 ◽

Cited By ~ 12

Author(s):

Nils M. van Rooijen ◽

Wanda de Keersmaecker ◽

Wim A. Ozinga ◽

Pol Coppin ◽

Stephan M. Hennekens ◽

...

Keyword(s):

Species Diversity ◽

Plant Species ◽

Plant Species Diversity ◽

Ecosystem Stability ◽

Natural Dune

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The Care Work of Balance

Inner Asia ◽

10.1163/22105018-12340149 ◽

2020 ◽

Vol 22 (2) ◽

pp. 237-254

Author(s):

Alex Oehler

Keyword(s):

Species Diversity ◽

Ethic Of Care ◽

Domestic Animals ◽

Care Work ◽

Hybrid Breeding ◽

Breeding Practices ◽

Anthropological Literature ◽

The Relationship

Abstract This paper explores the relationship between herding and hunting practices in the mountainous environment of Indigenous Soyots of Okinskii Raion (Oka), Buryatia. It traces an animistic approach to the concept of balance among sentient entities, including landscapes, identifying it as an underlying ethic governing the relationships of domestic and non-domestic animals with humans. Drawing on this ethic of care, the paper identifies practices directed at achieving balance as a form of resistance to assertions of outright control over living beings. The author begins by problematising the concept of care, pointing to basic ontological differences identified in anthropological literature, before addressing how care and balance are related. Here care is understood as a matter of attentiveness: a skill that links herding and hunting practices. The paper then delves into three concrete areas of care: the care of creating life in living and calving spaces; the care of holding life together through material implements and invocation of intangible protective forces; and, finally, care for species diversity in local yak and hybrid breeding practices.

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