<｜begin▁of▁sentence｜>### Instruction:
In the intricate network of an ecosystem, consider a chain of interactions represented by a sequence of species, where the relationships are as follows: Organism 1 has a symbiotic relationship with Organism 2 and Organism 3; Organism 2 also interacts with Organism 3; Organism 3 plays a crucial part in sustaining Organism 4; and finally, Organism 4 is necessary for the survival of Organism 5.

For our study, imagine you are tasked with predicting the impact of species removal on this delicate web of life. Specifically, determine the smallest number of species you would have to remove from this ecological network to break the linkage between the foundational species 1 and the apex species 5, ensuring that direct or indirect interactions between them are effectively severed. This assessment would provide invaluable insights into the resilience of our ecosystem.
### Response:
import networkx as nx
from networkx.algorithms.connectivity import local_node_connectivity

# Create a graph
G = nx.Graph()
G.add_edges_from([(1, 2), (1, 3), (2, 3), (3, 4), (4, 5)])

# Calculate local node connectivity between nodes 1 and 5
connectivity = local_node_connectivity(G, 1, 5)

print('Local node connectivity between nodes 1 and 5:', connectivity)
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