Please have a look at this useful ResearchGate link and PDF attachment.

https://www.researchgate.net/publication/11444764_Ecological_Responses_to_Recent_Climate_Change

Extinctions --> Decreasing diversity --> Unbalanced ecosystem, unknown climax --> sudden, unexpected changes in the ecosystem --> worse habitat for the current organisms including human --> Extinctions --> Decreasing diversity --> Unbalanced ecosystem, unknown climax --> sudden, unexpected changes in the ecosystem --> worse habitat for the current organisms including human --> Extinctions -->...

This is also a great article which explains everything you need to know about ecological impacts of climatic change: https://www.nytimes.com/interactive/2017/climate/what-is-climate-change.html?mc=adintl&mcid=facebook&mccr=edit&ad-keywords=GlobalTruth

Hi,

The climatic change : the ecological impacts change --> Extinctions or ???the change in species diversité --> new way, new results, new organismes.

For exemple the symbiose of fungi with the orchis's roots (micorhyza).

Climate change is causing primarily a disruption of weather patterns and this phenomenon poses great challenges to the viability and productivity of agriculture and other similar, farming activities (e.g.: forestry, animal husbandry, fisheries). This condition is also accelerating the speed of species loss, or extinction, while favoring organisms like r-strategists (e.g.: insects) that are more prolific and adaptable to changed environmental conditions than k-strategists (e.g.: mammals).

i agree with robert and Bruno

The major ecological impact of global climatic change in biodiversity loss. The changes in atmosphere, oceans and terrestrial ecosystems is impacting life forms on earth from all three directions and in all three spheres. Every single effect produced by climate change becomes the cause for multiple effects, all of which cumulatively cause loss of biodiversity.

Changes in weather and climate regimes have caused melting of ice on poles and mountains, sea level rise, increased heat waves. This has caused changes in nutrient cycles, altitude shift in tree lines, coastal erosion and frequenting natural disasters. All of these changes in turn have caused land cover change and habitat loss to a great extent and have resulted in loss of biodiversity.

Every day the Earth is exposed to massive amounts of solar energy some of which is absorbed, some of which is retained in the atmosphere, and some of which is radiated back to space. In this large complex and compound planetary system of resources and biomass, the energy absorbed and retained in various locations creates energy imbalances in the system that the system tries to correct as a function of what we call natural balance. The balance of nature theory proposes that ecological systems naturally seek a stable equilibrium, which generally means that a small change in some particular parameter will invariably be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system, or if there is sufficient imbalance (a tipping point), the countervailing function may be over-ridden by self-reinforcing positive feedback loops until a new equilibrium is established. Most of this attempted rebalancing revolves around energy inputs to the otherwise functionally closed biosphere of Earth. The primary functions of energy transfer revolve around evaporation and condensation of water (precipitation) and movement of air from high to low pressure areas and across temperature differentials (wind).

The effectiveness of these functions of energy transfer is measurable as difference in temperature and temperature changes. The climate of a given area is the prevailing conditions of water availability, wind, and temperature at any given period of time in a year, over a number of years. These prevailing conditions exist with what we consider “normal” ranges - ranges of water availability, wind force, and temperature that are relatively consistent for that time of year, in that location, year after year. “Climate change” is functionally significant departures from relatively stable patterns of moisture availability, wind energy, and temperature that create unstable conditions in any or all locations over long periods of time, in other words those “stable” patterns become highly unstable. These manifest as excess heat, excess cold, flooding, drought, extreme erosion, extreme resource imbalances, and extreme weather events. Climate is the conditions in a given area at a given time of year over a given period of time. Weather is the constant attempt of the Earth to achieve natural balance in the presence of moment to moment energy imbalances. Virtually every form of life on the planet requires some consistency to it’s environmental conditions to thrive. The place where these conditions exist is called a species’ habitat.

Radical departures from stable conditions usually result in loss of habitat. Most extinction, throughout the history of life on Earth, has been caused by “loss of habitat”. The effect of climate change on all elements of life is completely dependent upon each lifeform’s available habitat. For most lifeforms that occupy the solid surface of the planet a relatively stable climate is a necessity to maintain habitat. Any sustained departure from the required stable condition must either be overcome by changing external factors (adaptation), by change to the actual lifeforms or their life functions (evolution), or the loss of habitat results in death. Finally the answer to your question - ecosystems are generally formed of numerous communities of organisms that interact in a variety of ways that are frequently described as webs (ex: food web) or networks (ex: protective network), in a given range of common habitat that is maintained by natural balance. Radical departures from consistent climate - or what we are referring to as climate change - usually results in loss of habitat for one or more elements of an ecosystem and if enough elements, or just a few keystone species, are affected, the resulting loss of web or network integrity will cause the whole ecosystem to fail. Any losses to the overall inventory of lifeforms count as losses of biodiversity, but it all revolves around loss of habitat...including for humans and our entire food web.

The major impact has been on the Small Farmers in terms Crop production and productivity. This is hurting the poor in Rural Areas/